Torque transmission device, drive system and motor vehicle

专利摘要:
The invention relates to a torque transmission device (60), a drive system (70) and a motor vehicle, wherein the torque transmission device (60) has a drive shaft (W1), an output shaft (W2), and an intermediate shaft (W3), wherein the drive shaft (W1) and the output shaft (W2) each formed as idler gears, rotatably connected by means of a switching device with the associated shaft, first transmission elements (Z1, Z2), second transmission elements (Z3, Z4) and third transmission elements (Z5, Z6), wherein the first transmission elements ( Z1, Z2), the second gear elements (Z3, Z4) and the third gear elements (Z5, Z6) of the drive shaft (W1) and the output shaft (W2) are respectively engaged with each other and each in a common first (E1), second E2) and third gear element plane (E3) are arranged, wherein the intermediate shaft (W3) at least a first, designed as a loose wheel, by means of a switching device (SE4) with the intermediate shaft (W 3) drehverbindbares gear element (Z9), and wherein the first gear element (Z9) of the intermediate shaft (W3) with a transmission element (Z1, Z2, Z3, Z4, Z5, Z6) of the first gear element plane (E1), the second gear element plane (E2 ) or the third gear element plane (E3) is engaged.
公开号:AT519296A2
申请号:T50886/2017
申请日:2017-10-23
公开日:2018-05-15
发明作者:Ing Ivan Andrasec Dipl；Helmut Kassler Ing
申请人:Avl List Gmbh；
IPC主号:

专利说明:

Torque transmission device, drive system and
motor vehicle
The present invention relates to a torque transmission device, in particular for a motor vehicle with hybrid drive, wherein the torque transmission device has a drive shaft, an output shaft and an intermediate shaft. In this case, both the drive shaft and the output shaft each have at least a first transmission element, a second transmission element and a third transmission element, wherein the first transmission elements, the second transmission elements and the third transmission elements of the drive shaft and the output shaft are respectively engaged with each other and in a common first, second and third gear element plane are arranged. The transmission elements of the drive shaft and the output shaft are each formed as a loose wheel and each drehverbindbar by means of a switching device with the associated shaft, wherein the transmission elements of the drive shaft by means of the switching device with the drive shaft are drehverbindbar and the transmission elements of the output shaft to the output shaft.
The invention further relates to a drive system, in particular for a motor vehicle with hybrid drive, the at least one first drive motor, preferably an internal combustion engine, a second drive motor, preferably an electric machine, in particular an electric motor and / or generator operable electric machine, at least one drivable axle and comprising a torque transmission device disposed in the power flow direction between the first drive motor and the drivable axle.
Furthermore, the invention relates to a motor vehicle with hybrid drive with a drive system with a torque transmission device.
Torque transmission devices, in particular for drive systems with hybrid drive or for motor vehicles with hybrid drive, are basically known from the prior art, for example from DE 10 2010 030 570 A1.
In the aforementioned DE 10 2010 030 570 A1 an automated transmission for a hybrid drive system is described, which is a first transmission input shaft which is connectable via a starting element with an internal combustion engine, a second transmission input shaft which is connected to an electric machine, a transmission output shaft and two Has countershafts. For a small axial length and an efficient and comfortable operation, the second transmission input shaft is arranged coaxially or concentrically with the first transmission input shaft and the transmission output shaft is arranged coaxially behind the two transmission input shafts. The two countershafts are arranged axially parallel to one another and parallel to the axis of the transmission output shaft and in each case drive-connected directly to a transmission input shaft via a wheel set plane designed as an input constant. In addition, four double-sided operable switching devices are present, wherein the first switching device and the second switching device are arranged on the electric machine associated countershaft, the third switching device on the transmission output shaft and the fourth switching device on the engine associated countershaft.
Compared to this prior art, it is an object of the invention to provide an alternative torque transmitting device, in particular a torque transmitting device which is as flexible as possible, that is possible as many different operating modes, preferably in addition to the drive by means of an internal combustion engine purely electric driving and / or Boosting and / or loading in the state, but at the same time has a structurally simple as possible construction and is designed to save space. A further object of the invention is to provide a drive system and a motor vehicle with hybrid drive with such a torque transmission device.
These objects are achieved by the teaching of the independent claims. Preferred embodiments of the invention are the subject of the dependent claims and are explained in more detail below. The wording of the claims is made the subject of the description by express reference.
A torque transmission device according to the invention comprises a drive shaft, an output shaft and an intermediate shaft, wherein the drive shaft has at least a first transmission element, a second transmission element and a third transmission element, wherein the output shaft has at least a first transmission element, a second transmission element and a third transmission element, wherein the the first gear elements, the second gear elements and the third gear elements of the drive shaft and the output shaft are each engaged and are each arranged in a common first, second and third gear element plane, wherein the transmission elements of the drive shaft are each designed as a loose wheel and by means of a switching device with the Drive shaft are drehverbindbar, wherein the transmission elements of the output shaft are each formed as a loose wheel and are drehverbindbar means of a switching device with the output shaft, wherein the Intermediate shaft has at least one first transmission element, which is designed as a loose wheel and is rotatably connected to the intermediate shaft by means of a switching device, and wherein the at least one first transmission element of the intermediate shaft with a transmission element of the first gear element plane, the second gear element plane or the third gear element plane is engaged.
Due to the above-described, inventive arrangement and operative connection of the individual components of a torque transmission device according to the invention can be provided with a torque transmission device according to the invention, inter alia, a particularly advantageous in terms of space requirements transmission for a motor vehicle with hybrid drive, which also allows a structurally relatively simple structure and in particular no costly Planetary gear requires, but still allows a sufficient number of operating modes or grades.
In the context of the invention, a drive shaft is to be understood as meaning a shaft which can be non-rotatably connected to a drive motor for transmitting a torque from the drive motor to the torque transmission device or to the components of the torque transmission device. The drive shaft is preferably brought out for rotation with the drive motor from the housing of the torque transmission device and in particular rotatably supported by a surrounding the torque transmitting device housing or stored in the housing.
In some cases, it is advantageous if a torque transmission device according to the invention has at least one correspondingly suitable additional component on the input side or drive side, in particular a component suitable as start-up aid, via which the drive motor can be rotationally connected to the drive shaft, for example a disconnect clutch and / or a freewheel , In particular a switchable and / or speed-controlled and / or speed-controlled freewheel. To improve the smoothness of the torque transmission device, in particular to reduce torsional vibrations, it may be advantageous in some cases when the drive motor via a dual mass flywheel with the drive shaft rotatably connected o-the rotary is.
For the purposes of the invention, an output shaft is to be understood as a shaft which can be non-rotatably connected to a drivable axle for transmitting a torque from the torque transmission device or its components to the drivable axle.
In some cases, it is advantageous if a torque transmission device according to the invention has on the output side or output side at least one correspondingly suitable additional component, via which the output shaft can be rotatably connected to the drivable axle, for example a transmission element or a gear stage and / or a differential gear. In some cases, in particular in a transverse installation of a torque transmission device according to the invention in a motor vehicle, it is advantageous if the output shaft of a torque transmission device according to the invention has an additional, preferably designed as a fixed gear element which is rotatably connected to the output shaft, via which the output shaft of the torque transmission device with the drivable axle is drehverbindbar.
For the purposes of the invention, an intermediate shaft is understood to mean a shaft for rotational connection with at least one second drive motor, in particular with an electric machine which can be operated as an electric motor and / or the generator.
In some cases, it is advantageous if the intermediate shaft has at least one correspondingly suitable additional component, via which the second drive motor can be rotationally connected to the intermediate shaft, preferably a transmission element and / or a gear stage. To be particularly advantageous, it has also proven in this case when the intermediate shaft of a torque transmission device according to the invention has an additional, preferably designed as a fixed gear element that is rotatably connected to the intermediate shaft, via which the second drive motor with the intermediate shaft is drehverbindbar.
Under a transmission element according to the invention is an element to understand with which a torque can be transmitted.
A loose wheel in the sense of the invention is understood to mean a transmission element which is in principle mounted rotatably with respect to an associated shaft, that is to say a transmission element which is in principle not connected in a rotationally fixed manner to the associated shaft, but the transmission element is preferably rotatably connectable to the associated shaft, in particular by means of a switching device, preferably by means of a synchronization or a dog clutch or the like. A loose wheel can also be rotatably connected via a hollow shaft with at least one further idler gear.
Under a fixed gear within the meaning of the invention, a transmission element is understood, which is rotatably mounted with the associated shaft, that is a transmission element which is rotatably connected to the associated shaft, wherein the rotary connection between the transmission element and the associated shaft preferably not by means of a switching device or the like is solvable.
In the sense of the invention, the term "rotatably connected" or "rotationally connected" is understood to mean that the components named in the respective context are connected to one another such that a torque can be transmitted between the components. The components need not be directly connected to each other directly or directly, that is, without intermediate elements, but can also indirectly or indirectly, that is rotatably connected to each other via at least one in power ride arranged between additional component.
For the purposes of the invention, the term "rotatably connectable" is understood to mean that the components mentioned in the respective context are not fundamentally rotationally connected to one another, but can be connected to one another such that a torque can be transmitted, for example by closing an existing coupling or the like. The components need not be directly drehverbindbar directly or directly, that is, without intermediate elements, but can also be indirectly or indirectly, that is at least one in power ride between additional component arranged drehverbindbar with each other.
Preferably, at least one transmission element of a Drehmomentüberragungsvorrich device is designed as a gear, in particular as a spur gear, helical spur gears are particularly advantageous. In this case, all gear elements of the torque transmission device are particularly preferably designed as gearwheels, in particular as helical gearwheels. Alternatively, two or more transmission elements may be designed as pulleys, sprockets and / or friction wheels or as similar, torque-transmitting components and be operatively connected with each other, possibly via additional components such as belts and / or chains or the like.
Preferably, all transmission elements of a torque transmission device according to the invention are arranged in a common housing, in particular in a common transmission housing.
The first transmission element of the drive shaft and the first transmission element of the output shaft define the first gear element plane, the second transmission element of the drive shaft and the second transmission element of the output shaft, the second gear element plane and the third transmission element of the drive shaft and the third transmission element of the output shaft, the third transmission element level, according to the invention each the first gear members are engaged with each other, that is, mesh with each other, the second gear members are engaged with each other, and the third gear members are engaged with each other, respectively.
As a result, causes a rotation of the first, second and / or third transmission element of the drive shaft in a first rotational direction in each case a rotation of the first, second and / or third transmission element of the output shaft in a second, opposite direction of rotation and vice versa.
Preferably, in a torque transfer device according to the invention, the drive shaft and the output shaft are arranged in such a way that their axes of rotation parallel to each other, wherein the intermediate shaft is preferably also arranged with its axis of rotation parallel to the drive shaft and / or the output shaft.
This makes it possible to provide a particularly flexible and at the same time space-saving transmission for a hybrid drive system or for a motor vehicle with hybrid drive.
A torque transmission device according to the invention preferably has at least four (mechanical) gears or gear stages in which a drive power generated by the first drive motor can be transmitted to the output shaft, wherein the gears or gear ratios in which a drive power generated by the first drive motor can be transmitted to the output shaft , hereinafter and within the meaning of this application are referred to as "mechanical" gears. It is possible in each, with the use of the first drive motor driven gear, that is, in each mechanical gear, the Boosting using a trained at least as an electric motor, second drive motor, wherein the boost by means of the second drive motor, an additional torque can be generated, which of the first Drive motor generated power can be superimposed. However, the second drive motor is to be controlled in such a way that the power generated by the second drive motor is superimposed on the drive power generated by the first drive motor in a speed-synchronized manner.
A torque transmission device according to the invention preferably also makes it possible, by means of a second drive motor, which is designed at least as an electric motor, at least two purely electrically driven gears, in particular the purely electric driving in preferably at least two different gear stages. Further, the at least two electrically driven gears in a simple manner allow driving both in a first direction of travel, preferably in the forward direction, as well as in a second, opposite direction, preferably in the reverse direction, wherein only the second drive motor with the opposite direction of rotation to change the direction of travel must be operated. A torque transmission device according to the invention is further preferably designed such that the individual gear ratios are selected in particular such that with the two first electrical gears, an electric starting up to about 160 km / h is possible.
Furthermore, a torque transmission device according to the invention in conjunction with a (also) designed as a generator second drive motor with decoupled output shaft allows charging a battery connected to the second drive motor or the generator battery, preferably via at least two different power paths, i. preferably with two different translations. In other words, with a torque transmission device according to the invention, a drive power generated by the first drive motor with decoupled output shaft can be transmitted to the second drive motor, preferably via at least two different power paths, and thus a battery connected to the second drive motor or the generator using the first drive motor generated drive power can be loaded at standstill.
Depending on the arrangement of the individual components of the torque transmission device and their operative connection with each other, in particular depending on how the individual components can be rotatably connected to each other or rotational connection between them can be solved, different translations with different spreads arise between them.
In a torque transmission device according to the invention with three gear element planes, preferably at least one of the mechanical gears is a winding gear and in particular at least three gears are "normal" gears.
A Windungsgang in the context of the invention is a gear in which a transmitted drive power is transmitted along a power path having a winding, wherein a power path has at least one turn when the power from an axis of a first shaft on the axis of a second Wave and back to the axis of the first wave is guided.
In the sense of the invention, however, a "normal" gear or gear stage is a gear or a gear stage in which the associated drive power to be transmitted is transmitted along a power path which has no turn.
In an advantageous embodiment of a torque transmission device according to the invention, the torque transmission device has a first switching device arranged between the first gear element plane and the second gear element plane and preferably a second switching device arranged between the second gear element plane and the third gear element plane. By means of these two switching devices, the transmission elements of the drive shaft and the output shaft can be rotatably connected in each case with the associated shaft, wherein by means of the first switching device preferably at least the adjacent to the first switching device transmission element of the first gear element level and the first switching device adjacent transmission element of the second gear element plane with the associated shaft rotatably connected and by means of the second switching device in each case at least the adjacent to the second switching device transmission element of the second gear element level and the second switching device adjacent to the transmission element third gear element level. In this way, with a few switching devices several gear elements rotates connect with the associated shaft, resulting in a small space requirement.
In a further advantageous embodiment of a torque transmission device according to the invention, the drive shaft and the output shaft each additionally a fourth, preferably each also designed as a loose gear element, which in particular are engaged with each other, that is, in particular mesh with each other, and are preferably arranged in a common fourth gear element plane ,
In a further advantageous embodiment of a torque transmission device according to the invention, the torque transmission device has a third, preferably in addition to, in particular adjacent to the fourth gear element level arranged switching device. By means of the third switching device, in a torque transmission device according to the invention having four gear element planes, preferably the fourth gear element adjacent to the third gearshift device can be rotationally connected to the associated shaft.
By an additional, fourth gear element level in conjunction with a third switching device described above, there are two more mechanical gear ratios, that is, by means of the first drive motor drivable gears, in which also the Boos-th is possible, with one of the two other mechanical gears a "normal" Gang is and the other a winding course.
Further, four gear member planes in conjunction with a third gear shift device described above in many embodiments of a torque transfer device according to the present invention allow three-speed, preferably three, different gear ratios, or alternatively, in some embodiments of a torque transfer device of the present invention, to drive in four gear ratios.
In an advantageous embodiment of a first alternative of a torque transmission device according to the invention either the first transmission element of the drive shaft or the second transmission element and at the same time the third transmission element of the drive shaft with the drive shaft are drehverbindbar, preferably in a first switching state of the first switching device, the first transmission element of the drive shaft rotatably with the drive shaft is connected and in a second switching state of the first switching device, the second transmission element and the third transmission element of the drive shaft are rotatably connected to the drive shaft, and wherein in particular in a neutral state of the first switching device none of the three transmission elements of the drive shaft is rotatably connected to the drive shaft. That is, in the first switching state of the first switching device is preferably only the first transmission element of the drive shaft rotatably connected to the drive shaft, while the second transmission element and the third transmission element of the drive shaft are rotatable relative to the drive shaft. In the second switching state of the first switching device, however, preferably the second transmission element and the third transmission element of the drive shaft by means of the first switching device to the drive shaft rotatably connected and the first transmission element is rotatable relative to the drive shaft and in particular is in a neutral state of the first switching device none of the transmission elements of the drive shaft rotatably connected to the drive shaft. In a further advantageous embodiment of the first alternative of a torque transmission device according to the invention, either the first transmission element and simultaneously the second transmission element or the third transmission element of the output shaft with the output shaft are rotatably connected by means of the second switching device, preferably in a first switching state of the second switching device, the first transmission element and the second transmission element of the output shaft are rotatably connected to the output shaft and in a second switching state, the third transmission element of the output shaft is rotatably connected to the output shaft, and wherein in particular in a neutral state, none of the three transmission elements is rotatably connected to the output shaft. That is, preferably in the first switching state of the second switching device, the second transmission element and the third transmission elements of the output shaft rotatably connected to the output shaft and the first transmission element of the output shaft is rotatable relative to the output shaft, while in the second
Switching state of the second switching device, preferably the third transmission element of the output shaft to the output shaft rotatably connected and the first transmission element and the second transmission element are rotatable relative to the output shaft. In the neutral state of the second switching device in particular none of the transmission elements of the output shaft rotates connected to the output shaft.
The simultaneous rotational connection of two, the same shaft associated transmission elements with a (common) switching device can be particularly easily achieved by the respective transmission elements are rotatably connected to each other or when the respective transmission elements are rotatably connected to each other.
Therefore, in a further advantageous embodiment of the first alternative of a torque transmission device according to the invention, the second transmission element of the drive shaft and the third transmission element of the drive shaft rotatably connected to each other, in particular by means of a common, concentrically arranged around the outside drive shaft hollow shaft, and preferably the first transmission element of the output shaft and the second transmission element of the output shaft, in particular by means of a common, concentrically arranged externally around the output shaft around the hollow shaft. As a result, in a first manner, the transmission elements of the drive shaft and the output shaft of the first three transmission element planes are kinematically connected to one another or are kinematically positively coupled with one another, in particular such that when one of the transmission elements of the three transmission element planes rotates, the remaining transmission elements rotate with, in particular results in a meandering power path, provided that none of the transmission elements by means of one of the switching devices with the associated shaft is rotatably connected and the transmission elements can rotate freely around the respective associated shaft. In a further advantageous embodiment of the first alternative of a torque transmission device according to the invention, wherein the torque transmission device has a fourth gear element level and a third switching device, the fourth transmission element of the drive shaft by means of the third switching device with the drive shaft is drehverbindbar, wherein preferably in a first switching state of the third switching device fourth transmission element of the drive shaft is rotatably connected to the drive shaft and in particular in a neutral state of the fourth switching device, the fourth transmission element of the drive shaft is not rotatably connected to the drive shaft. In a further advantageous embodiment of the first alternative of a torque transmission device according to the invention, the fourth transmission element of the output shaft is non-rotatably connected to the third transmission element of the output shaft, in particular by means of a common, concentrically arranged outside the output shaft around the hollow shaft. As a result, in a first manner, the transmission elements of all four transmission element planes are basically kinematically connected to one another or kinematically coupled together, in particular such that when one of these transmission elements rotates, all of the other transmission elements of the four transmission element planes rotate together.
In a second alternative embodiment of a torque transmission device according to the invention, either the first transmission element or the second transmission element and at the same time the third transmission element of the output shaft with the output shaft are rotatably connected by means of the first switching device, preferably in a first switching state of the first switching device, the first transmission element of the output shaft the output shaft is rotatably connected and in a second switching state, the second transmission element and the third transmission element of the output shaft are rotatably connected to the output shaft, and wherein in particular in a neutral state of the first switching device none of the three transmission elements of the output shaft is rotatably connected to the output shaft.
Thus, correspondingly, as in the first alternative of a torque transmission device according to the invention, in the second alternative in the first switching state of the first switching device, the first transmission element rotatably connected to the associated shaft and the second transmission element and the third transmission element are rotatable relative to the associated shaft, and in the second Switching state of the first switching device are preferably the second transmission element and at the same time the third transmission element rotatably connected to the associated shaft, while the first transmission element is rotatable relative to the associated shaft, and in the neutral state, in particular also none of the transmission elements rotatably connected to the associated shaft. In the first alternative of a torque transmission device according to the invention, however, the associated shaft is in each case the drive shaft, while in the second alternative, the associated shaft is in each case the output shaft.
In a further advantageous embodiment of the second alternative torque transmission device according to the invention alternatively by means of the second switching device either the first transmission element and at the same time the second transmission element of the drive shaft or the third transmission element of the drive shaft with the drive shaft drehverbindbar, preferably in a first switching state of the second switching device, the first Transmission element and at the same time the second transmission element of the drive shaft to the drive shaft are rotatably connected and in a second switching state of the first switching device, the third transmission element of the drive shaft rotatably connected to the drive shaft, wherein in particular in a neutral state of the first switching device none of the three transmission elements of the drive shaft with the Drive shaft is rotatably connected. Accordingly, as previously described in the first alternative of a torque transmission device according to the invention in connection with the second switching device, in a first switching state of the second switching device respectively the first transmission element and the second transmission element of the associated shaft rotatably connected to the associated shaft and in the second switching state the third transmission element of the associated shaft and none in the neutral state, wherein in the second alternative torque transmission device according to the invention, the drive shaft is the associated shaft, while in the first alternative of a torque transmission device according to the invention, the output shaft is the associated shaft.
In a further advantageous embodiment of the second alternative torque transmission device according to the invention, the first transmission element of the drive shaft and the second transmission element of the drive shaft are rotatably connected to each other, in particular by means of a common, concentrically arranged around the outside drive shaft hollow shaft, and preferably the second transmission element of the output shaft and the third transmission element of the output shaft rotatably connected to each other, in particular by means of a common, concentrically arranged externally around the output shaft around hollow shaft.
That is, in the second alternative embodiment of a torque transmission device according to the invention preferably each of the transmission elements of the other shaft are rotatably connected to each other, not the first and second transmission element of the output shaft, but the first and second transmission element of the drive shaft and the second and third transmission element of the output shaft instead of the second gear element and the third gear element of the drive shaft.
As a result, the transmission elements of the first three gear element planes are kinematically connected to one another in a second manner, likewise such that when one of these gear elements of the first three gear element planes rotates, the other gear elements of the three gear element planes rotate accordingly, so that also a meandering power path of the drive shaft via the output shaft to the drive shaft and back results, if none of these transmission elements rotatably connected to the associated shaft is rotatably connected.
In a further advantageous embodiment of the second alternative of a torque transmission device according to the invention, wherein the torque transmission device has a fourth gear element level and a third switching device, the fourth transmission element of the output shaft is rotatably connected by means of the third switching device of the output shaft, wherein preferably in a first switching state of the third switching device, the fourth transmission element the output shaft is rotatably connected to the output shaft and in particular in a neutral state of the third switching device, the fourth transmission element is not rotatably connected to the output shaft.
In a further advantageous embodiment of the second alternative of a torque transmission device according to the invention, the fourth transmission element of the drive shaft is non-rotatably connected to the third transmission element of the drive shaft, in particular by means of a common, concentrically arranged outside around the drive shaft hollow shaft. As a result, in a second way, the transmission elements of all four transmission element planes are fundamentally kinematically connected to one another or kinematically positively coupled with one another, in particular such that when one of these transmission elements rotates, all of the other transmission elements of the four transmission element planes rotate together. As a result, in a second way, basically all gear elements of the drive shaft and the output shaft of all four gear element planes kinematically bound to each other also such that when one of the transmission elements of the drive shaft or the output shaft rotates, rotate the other gear elements in each case.
In some cases, it may be advantageous if a further fifth gear element level is provided in a torque transmission device according to the invention, which preferably by a fifth also designed as idler gear, rotatably connected to the drive shaft gear element and preferably also designed as a loose gear fifth, with the output shaft drehverbindbares gear element which is with the fifth gear element of the drive shaft is engaged defined.
The third switching device is arranged in particular between the fourth gear element level and the fifth gear element level and one of the two fifth gear elements is preferably drehverbindbar means of the adjacent, third switching device with the respective associated shaft, the other fifth gear member in particular rotatably connected to the adjacent fourth gear element is. This makes a total of nine mechanical gears possible.
Of course, even more gear element levels and / or switching devices are possible, but increases with each additional gear element level of space requirement of the torque transmitting device.
In a further advantageous embodiment of a torque transmission device according to the invention, the output shaft has at least one first further transmission element, which is preferably designed as a fixed gear and is non-rotatably connected to the output shaft. With the help of this transmission element can in a simple way and
Way another power path can be realized, in particular a further power path, via which a drive power generated by the second drive motor can be transmitted to the output shaft.
For this purpose, in a further advantageous embodiment of a torque transmission device according to the invention, the intermediate shaft to a second transmission element, wherein the second transmission element of the intermediate shaft is preferably designed as a loose wheel and by means of a switching device with the intermediate shaft is drehverbindbar, and wherein the second transmission element of the intermediate shaft in particular with the first further Transmission element of the output shaft is rotatably connected. Thus, via two power paths, a drive power generated by the second drive motor can be transmitted to the output shaft, on the one hand via the first gear element of the intermediate shaft, which is rotatably connected to one of the transmission elements of the first three transmission element planes, in particular in engagement, and on the other via the second transmission element of Intermediate shaft and the first additional transmission element of the output shaft.
The second transmission element of the intermediate shaft allows a third purely electrical gear, which can also be used advantageously as a so-called "torque-fill" gear, since using this mode or this gear ratio by means of the second drive motor during a switching operation between two mechanical gear ratios sufficient Torque can be provided so that a load interruption-free switching between two mechanical gears is made possible.
In a further advantageous embodiment of a torque transmission device according to the invention, wherein the torque transmission device comprises a fourth switching device, alternatively by means of the fourth switching device either the first transmission element of the intermediate shaft or the second transmission element of the intermediate shaft with the intermediate shaft rotatably connected, preferably in a first switching state of the fourth switching device the first transmission element of the intermediate shaft with the intermediate shaft is rotatably connected and in a second switching state, the second transmission element, and wherein in particular in a neutral state of the fourth switching means none of the two transmission elements of the intermediate shaft is rotatably connected to the intermediate shaft. In this way, by means of the fourth switching device can be respectively selected or switched, via which transmission element of the intermediate shaft in each case a drive power generated by the second drive motor to be dissipated or whether no drive power to be dissipated.
In an alternative embodiment of a torque transmission device according to the invention, the torque transmission device to a fourth switching device and a fifth switching device, wherein the first transmission element of the intermediate shaft by means of the fourth switching device with the intermediate shaft rotatably connected and the second transmission element of the intermediate shaft by means of the fifth switching device. Preferably, in a first switching state of the fourth switching device, the first transmission element of the intermediate shaft rotatably connected to the intermediate shaft and not rotatably connected in particular in a neutral state of the fourth switching device with the intermediate shaft, and preferably in a first switching state of the fifth switching device, the second transmission element of the intermediate shaft rotatably connected to the intermediate shaft and not rotatably connected in particular in a neutral state of the fifth switching device with the intermediate shaft. That is, preferably for both the first gear element of the intermediate shaft, as well as for the second gear element of the intermediate shaft own separate switching device is provided with which each of the associated gear member rotatably connected to the intermediate shaft or can be separated from it.
The arrangement of an additional fifth switching device has the advantage that both the first gear element and the second gear element of the intermediate shaft can be rotatably connected simultaneously with the intermediate shaft, whereby the transmission of a drive power is made possible via the intermediate shaft. This results in at least two more mechanical Windungsgänge, wherein a drive power generated by the first drive motor can be guided, inter alia, via the intermediate shaft to the output shaft. In a further advantageous embodiment of a torque transmission device according to the invention, the second gear element of the intermediate shaft is rotatably connected directly to the first further transmission element of the output shaft or via a reverse shaft with a preferably designed as a fixed gear element with the first further transmission element of the output shaft, wherein the transmission element of the reverse shaft in particular on the one hand with the second gear element of the intermediate shaft is engaged and on the other hand with the first further transmission element of the output shaft. With the help of the reversing shaft and its transmission element, if necessary, a (required) direction of rotation synchronization or, if possible from the boundary conditions, a reversal of the direction of rotation can be achieved in a simple manner.
A direction of rotation synchronization, i. a reverse shaft with a transmission element, is in particular required when the first transmission element of the intermediate shaft is rotatably connected to a transmission element of the drive shaft and if the first transmission element of the intermediate shaft and the second transmission element of the intermediate shaft for pivotal connection with the intermediate shaft is associated with a common switching device.
Is a reversal of rotation possible from the boundary conditions, which is particularly the case when the first gear element of the intermediate shaft is rotatably connected to a transmission element of the output shaft and if the first transmission element of the intermediate shaft and the second transmission element of the intermediate shaft each have their own, separate switching device for Drehverbinden associated with the intermediate shaft can, by the arrangement of an additional reversing shaft with a transmission element and the resulting reversal of direction at least two of the mechanical gear stages, which without reversing the direction of rotation, ie are without reverse shaft, forward gears, are converted into reverse gears, so that even by means of the first drive motor, a reverse drive is possible and reverse is not only purely electrically possible.
In particular, provided that the first drive motor via a suitable starting element, such as a clutch or a speed-controlled freewheel, is connected to the drive shaft, and provided that the respective switching devices are formed as synchronizers, with such a torque transmission device according to the invention a start alone on the first drive motor possible, so that, for example, at a for electric starting too low battery level without waiting until the battery is sufficiently charged again, a start is possible, especially in the forward and reverse direction.
In a further advantageous embodiment of a torque transmission device according to the invention, the first transmission element of the intermediate shaft is rotatably connected to a transmission element of the output shaft, wherein the first transmission element of the intermediate shaft is preferably directly with a transmission element of the output shaft in engagement. This configuration enables the arrangement of the intermediate shaft, in particular of the second drive motor, which can be connected to the intermediate shaft in a rotatable manner, on the side of the output shaft.
In a further advantageous embodiment of a torque transmission device according to the invention, in particular in a further advantageous embodiment of the first alternative of a torque transmission device according to the invention, the first transmission element of the intermediate shaft is engaged with the first transmission element of the output shaft.
In an alternative embodiment of a torque transmission device according to the invention, in particular in an advantageous further embodiment of the second alternative torque transmission device according to the invention, the first transmission element of the intermediate shaft with the third transmission element of the output shaft is engaged.
In an alternative embodiment of a torque transmission device according to the invention, in particular in an advantageous further embodiment of the first or second alternative torque transmission device according to the invention, the first gear element of the intermediate shaft with a transmission element of the drive shaft is engaged. This configuration enables the arrangement of the intermediate shaft and thus in particular of the second drive motor rotatably connected to the intermediate shaft on the side of the drive shaft in contrast to the arrangement described above laterally of the output shaft which assumes that the first gear element of the intermediate shaft is rotatably connected to a transmission element of the output shaft.
In a further advantageous embodiment of an alternative torque transmission device according to the invention, in particular in a further advantageous embodiment of the first alternative of a torque transmission device according to the invention, the first gear element of the intermediate shaft is engaged with the second transmission element of the drive shaft.
In a further advantageous embodiment of an alternative torque transmission device according to the invention, in particular in a further advantageous embodiment of the second alternative of a torque transmission device according to the invention, the first transmission element of the intermediate shaft is engaged with the first transmission element of the drive shaft.
The switching devices of a torque transmission device according to the invention can in principle be designed in each case either as a synchronization or as a dog clutch, with dog clutches having the advantage over synchronizers that they do not require additional rotational speed sensors. However, it has proved to be advantageous if in particular at least one switching device, by means of which at least one gear element of a gear element plane can be rotatably connected to the drive shaft or the output shaft, is designed as synchronization.
In most cases, it is sufficient and therefore advantageous in terms of cost, if at least one switching device for rotational connection of one of the transmission elements of the intermediate shaft is formed with the intermediate shaft as a dog clutch, in which case preferably all, the intermediate shaft associated switching devices are designed as jaw clutches.
However, in some cases, in particular in the case of a direction of rotation reversal generated by means of an additional reversing shaft, the switching devices assigned to the intermediate shaft are preferably also designed as synchronizers.
A drive system according to the invention is characterized in that it comprises a previously described torque transmission device according to the invention, wherein the
Drive shaft of the torque transmitting device with the first drive motor is rotatably connected or drehverbindbar, wherein the intermediate shaft with the second drive motor is rotatably connected or drehverbindbar, and wherein the output shaft is rotatably connected or drehverbindbar with the drivable axle. Preferably, the drive shaft is arranged coaxially to a rotational axis of the first drive motor. If the first drive motor is an internal combustion engine, in particular a reciprocating internal combustion engine, the drive shaft is preferably arranged coaxially to a crankshaft axis of the internal combustion engine.
The second drive motor, which is preferably designed as an electric machine, in particular as an electric motor and / or generator operable electric machine is preferably arranged such that the axis of rotation of the second drive motor either coaxial with the axis of rotation of the first drive motor and / or coaxial with the drive shaft runs or coaxial with the output shaft or parallel to the drive shaft and / or output shaft, which results in a particularly advantageous arrangement, in particular in terms of space requirements, when the second drive motor is arranged such that its axis of rotation is parallel to the drive shaft and / or the output shaft, wherein the second Drive motor is in particular arranged laterally next to the drive shaft or laterally next to the output shaft.
Under an electric machine according to the invention is an arrangement of starter and rotor to understand, with rotor and starter can interact with each other electromagnetically. Preferably, the rotatably connectable in particular with a housing stator can act on the rotor so with electromagnetic forces that the rotor is rotated and can deliver a torque, so that the electric machine acts as an electric motor (engine operation). Alternatively and / or additionally, the stator can be acted upon by the rotor with electromagnetic forces such that the electric machine can preferably provide electrical energy and acts as an electrical generator (generator operation). The stator may preferably bias the rotor to rotate in one of two opposite directions of rotation. In particular, the electric machine is also preferably designed in such a way that the rotational speed of the rotor can assume different values within a defined rotational speed interval.
In an advantageous embodiment of a drive system according to the invention, the drive system and / or the torque transmission device, a dual mass flywheel to improve the quietness of the drive system, in particular to reduce torsional vibrations, and / or a freewheel for decoupling the first drive motor of the torque transmitting device, preferably a switchable freewheel wherein the drive shaft of the torque transmitting device via the dual mass flywheel and / or the freewheel with the first drive motor is rotatably connected or drehverbindbar, wherein the dual mass flywheel and / or the freewheel is arranged in particular in the power flow direction between the first drive motor and the first transmission element of the drive shaft. In this case, the dual mass flywheel and / or the freewheel can be arranged either within the housing of the torque transmission device, or outside of this.
Instead of a freewheel also a separating clutch can be provided. However, the use of a freewheel opposite a disconnect clutch has the advantage that with the aid of a freewheel, in particular a switchable and / or speed-controlled and / or speed-controlled freewheel in a particularly simple, especially very space-saving manner, the first drive motor in dependence on its torque direction and relative speed can be integrated into the power flow of the drive system to the output shaft, in particular, if the first drive motor, for example, does not allow overrun operation, or a separation of the power flow is possible by the speed of the first drive motor is lowered. In some cases, under certain circumstances, an active switching element can be saved, so that an additional space gain can be achieved.
As an alternative, albeit not as a functionally identical alternative, the function of the freewheel and / or the separating clutch can also be taken over by the control of the first drive motor for decoupling the first drive motor from the torque transmission device, in particular from the drive shaft, wherein the first drive motor or whose control is preferably designed accordingly. However, in some cases it may be the case that the first drive motor in this case requires its own starter.
In a further advantageous embodiment of a drive system according to the invention, the intermediate shaft to another transmission element, which is preferably designed as a fixed gear and rotatably connected to the intermediate shaft, wherein the second drive motor preferably via the further transmission element of the intermediate shaft with the intermediate shaft rotatably connected or drehverbindbar, in particular via a rotatably connected to the second drive motor or drehverbindbare rotor shaft with a preferably designed as a fixed gear element, which is in engagement with the further gear element of the intermediate shaft. That is, preferably, the second drive motor via an additional gear stage which is in particular formed by two fixed wheels, preferably by a spur gear with each helical gears, rotatably connected to the intermediate shaft or drehverbindbar.
In a further advantageous embodiment of a drive system according to the invention, the output shaft to a second, further transmission element, which is preferably designed as a fixed gear and rotatably connected to the drive shaft, wherein the output shaft preferably rotatably connected via the second, further transmission element with the antreibba-Ren axis or is drehverbindbar, in particular via a differential gear, which is rotatably connected to a differential shaft, wherein the differential shaft preferably has a trained as a fixed gear element which is in engagement with the second further gear element of the output shaft.
With the help of the second, further transmission element of the drive shaft can be realized in a simple manner a transverse installation of a drive system according to the invention or a torque transmission device according to the invention in a vehicle. For a longitudinal installation, the second additional transmission element of the output shaft is usually not required, since in this case the output shaft is preferably rotatably connected directly to the differential shaft of a differential gear of the driven axle or drehverbindbar.
An inventive motor vehicle with hybrid drive is characterized in that it has an inventive drive system with a torque transmission device according to the invention.
These and other features and advantages will become apparent from the claims and from the description also from the drawings, wherein the individual features may be implemented alone or in each case in the form of sub-combinations in an embodiment of the invention and an advantageous as well as for can represent protectable design for which protection is also claimed, if it is technically feasible.
Some of the features mentioned or the properties relate both to a torque transmission device according to the invention and to an inventive drive system and to a motor vehicle according to the invention. Some of these features and properties are described only once, but apply independently in the context of technically possible embodiments both for a torque transmission device according to the invention as well as for a drive system according to the invention and for a motor vehicle according to the invention.
The invention will be explained in more detail below with reference to non-limiting embodiments, which are shown at least partially schematically in the figures, wherein components having the same function are provided with the same reference numerals. Showing:
1a is a transmission diagram of a first embodiment of a drive system according to the Invention with an embodiment of a torque device according to the invention according to a first alternative,
1b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 1a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
2a shows a transmission diagram of a second embodiment of an inventions to the invention drive system with a second embodiment of a torque device according to the invention according to the first alternative,
2b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 2a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
3a shows a transmission diagram of a third embodiment of a drive system according to the invention with a third embodiment of a torque device according to the invention according to the first alternative,
3b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 3a can be operated and which switching states of the individual switching devices are required for setting the respective gear steps,
3c shows a table from which it can be seen in which gear stages a variant of the drive system according to the invention from FIG. 3a can be operated which has no fourth gear element plane and no third gearshift device and which switching states of the individual gearshift devices are required for setting the respective gear steps;
4a shows a transmission diagram of a fourth embodiment of a drive system according to the invention with a fourth embodiment of a torque device according to the invention according to the first alternative,
4b shows an associated table from which it can be seen in which gear steps the drive system according to the invention from FIG. 4a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
5a shows a transmission diagram of a fifth embodiment of a drive system according to the invention with a fifth embodiment of a torque device according to the invention according to the first alternative,
5b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 5a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
6a shows a transmission diagram of a sixth exemplary embodiment of a drive system according to the invention with a sixth exemplary embodiment of a torque transmission device according to the invention, wherein the torque transmission device is designed according to a second alternative,
6b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 6a can be operated and which switching states of the individual switching devices are required for setting the respective gear steps,
7a shows a transmission diagram of a seventh exemplary embodiment of a drive system according to the invention with a seventh exemplary embodiment of a torque transmission device according to the invention, the torque transmission device being designed according to the second alternative,
7b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 7a can be operated and which switching states of the individual switching devices are required for setting the respective gear steps,
8a shows a transmission plan of an eighth embodiment of a drive system according to the invention with an eighth embodiment of a torque transmission device according to the invention, wherein the torque transmission device according to the second alternative is formed,
8b shows an associated table from which it can be seen in which gear steps the drive system according to the invention from FIG. 8a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
9a shows a transmission plan of a ninth embodiment of an inventive to the invention drive system with a ninth embodiment of a torque transmission device according to the invention, wherein the torque transmission device is formed according to the second alternative,
9b shows an associated table from which it can be seen in which gear steps the drive system according to the invention from FIG. 9a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
10a shows a transmission plan of a tenth embodiment of the invention to the invention drive system with a tenth embodiment of a torque transmission device according to the invention, wherein the torque transmission device is formed according to the second alternative,
10b shows an associated table from which it can be seen in which gear stages the drive system according to the invention from FIG. 10a can be operated and which switching states of the individual shift devices are required for setting the respective gear steps,
Fig. 11a is a transmission diagram of an eleventh embodiment of a drive system according to the Invention with an eleventh embodiment of a torque transmission device according to the invention, wherein the torque transmission device is formed according to the second alternative, and
Fig. 11b is an associated table, from which it can be seen in which ratios the drive system according to the invention from Fig. 11a can be operated and which switching states of the individual switching devices for setting the respective gear ratios are required.
1a shows a transmission diagram of a first exemplary embodiment of a drive system 70 according to the invention with a first exemplary embodiment of a torque transmission device 60 designed according to a first alternative, the torque transmission device 60 having a drive shaft W1, an output shaft W2 and an intermediate shaft W3.
The drive shaft W1 of the torque transmission device 60 is rotationally connected in this embodiment of a drive system 70 according to the invention via a dual mass flywheel 20 and a freewheel 30 with a first drive motor 10, which is designed as an internal combustion engine 10. The smoothness of the drive system 70 can be improved by means of the dual-mass flywheel 20; in particular, torsional vibrations induced by the first drive motor 10 can be reduced if necessary.
The drive shaft W1 has a first transmission element Z1, a second transmission element Z3 and a third transmission element Z5 and the output shaft W2 has a first transmission element Z2, a second transmission element Z4 and a third transmission element Z6, wherein in each case the first transmission elements Z1 and Z2, the second gear elements Z3 and Z5 and the third gear elements Z5 and Z6 are engaged with each other and are each arranged in a common first gear element plane E1, a second gear element plane E2 and a third gear element plane E3 and respectively the first gear element plane E1, the second gear element plane E2 and the third Define gear element level E3.
The three gear elements Z1, Z3 and Z5 of the drive shaft W1 and the three gear elements Z2, Z4 and Z6 of the output shaft W2 are each formed as idler gears and by means of an associated switching device SE1 or SE2 respectively with the associated shaft, i. with the drive shaft W1 and the output shaft W2, rotatably connected.
In this case, the transmission elements Z1, Z3 and Z5 of the drive shaft W1 by means of a first switching device SE1, which is disposed between the first gear element plane E1 and the second gear element plane E2 and assigned in this case the drive shaft W1, rotatably connected to the drive shaft W1 and the Transmission elements Z2, Z4 and Z6 of the output shaft W2 can by means of a second, the output shaft W2 associated switching device SE2, which is arranged between the second gear element plane E2 and the third gear element level E3, rotatably connected to the output shaft W2.
The second gear element Z3 of the drive shaft W1 and the third gear element Z5 of the drive shaft W1 are rotationally connected to each other by means of a common, here unspecified denominated, concentrically arranged outside the drive shaft W1 hollow shaft, so that they only together, in particular only simultaneously, means the first switching device SE1 can be rotatably connected to the drive shaft W1 or the rotational connection of the second gear element Z3 and the third gear element Z5 of the drive shaft W1 with the drive shaft W1 can only be solved together, especially only simultaneously.
In a first switching state S1 of the first switching device SE1 thus the first transmission element Z1 of the drive shaft W1 is rotatably connected to the drive shaft W1 and a rotary connection between the second transmission element Z3 of the drive shaft W1 and the third transmission element Z5 of the drive shaft W1 and the drive shaft W1 is released. In a second switching state S2 of the first switching device SE1, however, are simultaneously the second transmission element Z3 and rotatably connected by means of the hollow shaft with the second transmission element Z3 of the drive shaft W1, third transmission element Z5 of the drive shaft W1 rotatably connected to the drive shaft W1, while a rotary connection between the first Transmission element Z1 of the drive shaft W1 and the drive shaft W1 is released.
In a neutral state of the first switching device SE1, neither the first transmission element Z1 of the drive shaft W1 nor the second transmission element Z3 and the third transmission element Z5 are rotatably connected to the drive shaft W1.
The first transmission element Z2 of the output shaft W2 and the second transmission element Z4 of the output shaft W2 are also rotatably connected to each other by means of a common, unspecified here not-designated hollow shaft and also form a kind of "common idler gear", wherein the hollow shaft in this case concentric outside around the output shaft W2 is arranged. Thus, the first transmission element Z2 and the second transmission element Z4 of the output shaft W2 only together, in particular only simultaneously, be rotatably connected by means of the second switching device SE2 with the output shaft W2 or the rotational connection of the first transmission element Z1 and the second transmission element Z2 of the output shaft W2 with Output shaft W2 can only be solved together, especially only at the same time.
Thus, in a first switching state S3 of the second switching device SE2, the first transmission element Z2 and the second transmission element Z4 of the output shaft W2 simultaneously rotatably connected to the output shaft W2, while the rotational connection between the third gear element Z6 of the output shaft W2 and the output shaft W2 is released. In a second switching state S4 of the second switching device SE2, however, the third transmission element Z6 of the output shaft W2 is rotatably connected to the output shaft W2, while the rotational connection between the first transmission element Z2 and the second transmission element Z4 of the output shaft W2 and the output shaft W2 is released.
In a neutral state of the second switching device SE2, neither the first transmission element Z2 of the output shaft W2 and the second transmission element Z4 of the output shaft W2 nor the third transmission element Z6 of the output shaft W2 are rotationally connected to the output shaft W2.
The output shaft W2 also has a first further transmission element Z12 and, in this first exemplary embodiment of a torque transmission device 60 according to the invention, also a second further transmission element Z15, in order to enable transversal mounting of the torque transmission device 60 in a motor vehicle. The first further transmission element Z12 and the second further transmission element Z15 of the output shaft W2 are in each case both designed as fixed wheels and connected in a rotationally fixed manner to the output shaft W2. Via the second further transmission element Z15 of the output shaft W2, output power to the output shaft W2 can be dissipated to a drivable axle, not shown here, in which case the second further transmission element Z15 of the output shaft W2 is non-rotatably connected to a differential gear 40, via a rotatably connected to a differential shaft W5 gear element Z16.
In the case of a longitudinal installation, the second further transmission element Z15 of the output shaft W2 is usually not required, just as the transmission element Z16 of the differential shaft W5: in these cases, the output shaft W2 is preferably connected directly to the rotatable axle or its differential gear 40 rotatably connected or drehverbindbar, in particular with the differential shaft W5 of the differential gear 40 of the driven axle. Via the intermediate shaft W3, a drive power generated by means of a second drive motor 50 can be applied to the output shaft W2, in particular alternatively or in addition to a drive power generated by the first drive motor 10, wherein in this inventive drive system 70, the second drive motor 50 is an electric machine 50 , which can be operated both as an electric motor and as a generator.
In this embodiment of a drive system 70 according to the invention, the electric machine 50 is rotatably connected to a rotor shaft W4, on which a transmission element Z13, which is designed as a fixed, rotatably mounted, and which engages with a formed as a fixed gear element Z14 of the intermediate shaft W3 is.
The intermediate shaft W3 has a first transmission element Z9 and a second transmission element Z11, which are each designed as idler gears and can each be connected by means of a switching device, in this case by means of a fourth switching device SE4, rotatable with the intermediate shaft W3, wherein in a first switching state 56 of the fourth switching device SE4, the first gear element Z9 of the intermediate shaft W3 rotatably connected to the intermediate shaft W3 is connected and in a second switching state 57 of the fourth switching device SE4 the second gear element Z11 of the intermediate shaft W3 rotatably connected to the intermediate shaft W3.
In a neutral state of the fourth switching device SE4, neither the first transmission element Z9 of the intermediate shaft W3 nor the second transmission element Z11 of the intermediate shaft W3 is rotationally connected to the intermediate shaft.
In this first exemplary embodiment of a torque transmission device 60 according to the invention, the first transmission element Z9 of the intermediate shaft W3 engages or meshes with the first transmission element Z2 of the output shaft W2, while the second transmission element Z11 of the intermediate shaft W3 engages with the first further transmission element Z12 of the output shaft W2 combs. All gear elements Z1 to Z6, Z9 and Z11 to Z16 of the torque transmission device 60 according to the invention from FIG. 1a are designed as helical spur gears. The first switching device SE1 and the second switching device SE2 are each designed as a synchronization and the fourth switching device SE4 is a dog clutch.
The freewheel is designed in this case as a switchable freewheel 30, in particular as a speed-controlled freewheel, so that if necessary, the internal combustion engine 10, that is, the first drive motor 10, speed-controlled to the drive shaft W1 and speed-controlled can be decoupled from the drive shaft W1, thereby a start from the stand alone by means of the internal combustion engine 10 designed as a drive motor 10 is made possible.
The drive system 70 according to the invention shown in FIG. 1a can be operated in ten different gear steps, which are listed in FIG. 1b, the individual gear steps depending on the switching states of the respective switching devices SE1, SE2 and SE4.
The table shown in Fig. 1b shows in column 1, depending on the switching state of the switching devices resulting gear ratios again, in the columns 3 ff. Each of the individual switching states of the switching devices are shown. An "X" in each case means that the respective switching state has been assumed.
In column 1, each of the individual operating modes and the individual gear stages are named, where N is an idle position and with VKM the mechanical gear ratios, i. those gear steps in which at least one drive power generated by the first drive motor 10 is transmitted to the output shaft, provided that the drive shaft W1 is rotatably connected to the first drive motor 10 and is not decoupled by means of the freewheel 30 of this.
With EM, the gear stages are designated, in which only one of the second drive motor 50 generated drive power is transmitted to the output shaft, that is, in which a purely electric drive is possible.
The gear ratios denoted by L are operating modes in which a drive power generated by the first drive motor 10 is transmitted to the second drive motor 50 when the output shaft W2 is disconnected, so that when the second drive motor 50 or the electric machine 50 is operated as a generator in this Gear stages a battery connected to the second drive motor battery can be charged at a standstill.
Column 2 of the table additionally indicates whether the respective operating mode or the respective gear stage is a so-called "normal" gear or a so-called winding gear, in which the drive power is first dissipated via the output shaft is guided by a first shaft axis via a second shaft axis and back again over the first shaft axis, so that the associated power path is in the form of a winding.
As can easily be seen from FIG. 1 b, four operating modes VKM 1 to VKM 4 of the total of ten operating modes are dispensed with the mechanical gear stages, in three operating modes EM 1 to EM 3 a purely electric drive is possible and in two gear stages L 1, L 2 the store at a standstill.
The respective power path, via which the drive power generated by the first drive motor 10 and / or by the second drive motor 50 is transmitted to the respective target component, either the output shaft W2 or the drivable axle or the electric machine 50, in the various gear stages, Depending on the individual switching states S1 or S2, S3 or S4 and / or S6 or S7 of the first switching device SE1, the second switching device SE2 and the fourth switching device SE4, in the following which in the in Fig 1a illustrated first embodiment of a drive system 70 according to the invention for the respective operating modes depending on the switching states of the individual switching devices resulting power paths are described at least partially by way of example.
In the operating mode VKM 1 or the first mechanical gear VKM 1, which results when the first switching device SE1 is in the first switching state S1, and at the same time the second switching device SE2 is in the second switching state S4, is coupled via the freewheel 30 internal combustion engine 10 a drive power from the internal combustion engine 10 and the first drive motor 10 via the drive shaft W1 on the first, in this case rotatably connected to the drive shaft W1 rotatably connected transmission element Z1 of the drive shaft W1, from there further along the first transmission element level E1 to the second, with The transmission element Z2 of the output shaft W2 which meshes with the first transmission element Z1 of the drive shaft W1 and which is rotatably connected to the third transmission element Z4 of the output shaft W2 and in this case is rotationally movable with respect to the output shaft W2. From there, the drive power along the second gear element level E2 to the second gear element Z3 of the drive shaft W1, further led to the third gear element Z5 of the drive shaft W1 and from there along the third gear element level E3 to the third gear element Z6, which rotatably by means of the switching device SE2 with the output shaft W2 is connected, so that the drive power via the third transmission element Z6 of the output shaft W2 is delivered to the output shaft W2.
From there, the drive power can be dissipated via the second further, non-rotatably connected to the output shaft W2 gear element Z15, the transmission element Z16 of the differential shaft W5 and the differential gear 40 to drivable axis.
Since the drive power is performed in this case by a unspecified drive shaft axis to a likewise unspecified output shaft axis and from there initially returned to the drive shaft axis before the power is transmitted to the output shaft W2, it is at this gear to a winding course (see column 2 in Fig. 1b).
In the above-described operating mode VKM 1, in principle a drive power can be applied to the output shaft W2, in particular an additional torque, with the aid of the second drive motor 50, this additional application of a drive power generated by a second drive motor 50 hereinafter, in particular in the sense of the invention, is called "boosting".
If a drive power is generated by means of the second drive motor 50 and the fourth switching device SE4 is in the first switching state S6, the drive power generated by the electric machine 50 via the rotor shaft W4, the transmission element Z13, the transmission element Z14, the intermediate shaft W3, the first transmission element Z2 of the output shaft W2, the second transmission element Z4 of the output shaft W2, the second transmission element Z3 of the drive shaft W1, the third transmission element Z5 of the drive shaft W1 and the third transmission element Z6 of the output shaft W2 transmitted to the output shaft W2.
On the other hand, if the fourth switching device SE4 is in the second switching state S7, the drive power of the electric machine 50 is transmitted via the rotor shaft W4, the transmission elements Z13 and Z14, the intermediate shaft W3, the second transmission element Z11 of the intermediate shaft W3 and the first further transmission element Z12 of the output shaft W2 transmitted to the output shaft W2.
The illustration "(X)" selected in the table in FIG. 1b is intended to express that the fourth switching device SE4 can optionally assume the first switching state S6, the second switching state S7 or the neutral state in this operating mode VKM 1, wherein in the neutral state the fourth switching device SE4 of the drive power generated by the first drive motor 10 is not superimposed on the drive power generated by the second drive motor 50. The first switching state S6 and the second switching state S7 can also not be taken simultaneously.
When "boosting" is also to be noted that in the illustrated in Fig. 1a, the drive motor 70 according to the invention, the second drive motor 50 is basically to control such that the output from the electric machine 50 drive power rotational speed synchronously applied from the first drive motor 10 to the output shaft W2 Output power is transmitted to the output shaft W2.
If, in contrast to the first operating mode VKM 1, the second switching device SE2 is in the first switching state SE3, this results in the operating mode VKM 2. In this embodiment, a drive power generated by the first drive motor 10 is transmitted from the drive shaft W1 via the first transmission element plane E1, in particular via the first , In this case, rotatably connected to the drive shaft W1 gear element Z1 of the drive shaft W1 and the first, in this case rotatably connected to the output shaft W1 gear element Z2 of the output shaft, transmitted to the output shaft W2.
As explained on the basis of the first operating mode VKM 1, boosting is possible in this operating mode as well, in that the power flow of the drive power generated by the second drive motor 50 is identical to the previously described operating mode VKM 1 is.
In the third operating mode VKM 3, in which the first switching device SE1 is in the second switching state S2 and the second switching device SE2 also in the second switching state S4, the transmission of the drive power from the first drive motor 10 from the drive shaft W1 based on the second transmission element Z3 of the drive shaft W1 to the third transmission element Z5 of the drive shaft W1 and from there via the third transmission element Z6 of the output shaft W2 to the output shaft W2. Also here is a boost, as in the two previously described operating modes VKM 1 and VKM 2 possible.
If the first switching device SE1 is in the second switching state S2 and the second switching device SE2 is in the first switching state S3, the operating mode VKM 4 sets in which a drive power generated by the first drive motor 10 starting from the drive shaft W1 via the second transmission element Z3 of the drive shaft and the second transmission element Z4 of the output shaft Z4 is transmitted to the output shaft W2. Also in this mode of operation, a corresponding boosting with the aid of the second drive motor 50 via the intermediate shaft W3 either via the first transmission element Z9 of the intermediate shaft W3 and the first transmission element Z2 of the output shaft W2 and the second transmission element Z4 of the output shaft W2 or via the second transmission element Z11 Intermediate shaft W3 directly to the output shaft W2 via the first further transmission element Z12 of the output shaft possible.
If the first switching device SE1 is in the neutral state as in the operating modes EM 1, EM 2 and EM 3, the drive shaft W1 is decoupled and a pure drive by means of the second drive motor 50 is possible. As a result, in particular when the second drive motor is designed as an electric machine 50, purely electric driving is possible.
If the second switching device SE2 is in the second switching state S4 and the fourth switching device SE4 is in the first switching state S6 while the first switching device SE1 is in the neutral state, the gear stage EM 1 is set. In this, the drive power generated by the second drive motor 50 via the rotor shaft W4, the transmission element Z13 and the transmission element Z14 of the intermediate shaft W3, further via the first transmission element Z2 of the output shaft W2, the second transmission element Z4 of the output shaft W2, the second transmission element Z3 of the drive shaft , the third transmission element Z5 of the drive shaft W1 and transmitted via the third gear element Z6 of the output shaft W2 to the output shaft W2, which is in this case a Windungsgang.
If, on the other hand, the first switching device SE1 and the second switching device SE2 are each in the neutral state, while the fourth switching device SE4 is in the second switching state S7, the drive power is transmitted from the second drive motor 50 via the rotor shaft W4, the transmission element Z13, the transmission element Z14 of the intermediate shaft W3 via the intermediate shaft W3 to the second transmission element Z11 of the intermediate shaft W3 and further on this to the first further transmission element Z12 of the output shaft W2 to the output shaft W2. Since this gear is not guided via one of the transmission elements Z1 to Z6 of the three gear element planes E1, E2, E3 to the output shaft W2, this gear or operating mode EM 2 has the advantage that it can be used as a so-called "torque fill". In this case, in order to avoid a load interruption during a switching operation between two mechanical gear stages, with the aid of this gear EM 2, a corresponding, "torque gap" filling, "Torque-FiH" drive power can be applied to the output shaft W2, while the first switching device SE1 and / or the second switching device SE2 change their switching state.
In the operating mode EM 3, which occurs when the second switching device SE2 is in the first switching state S3 and the fourth switching device SE4 is in the first switching state S6, while the first switching device SE1 is in the neutral state, the drive power generated by the second drive motor 50 via the rotor shaft W4, the transmission element Z13 and the further transmission element Z14 of the intermediate shaft W3 transmitted to the output shaft W2 via the intermediate shaft W3, the first transmission element Z9 of the intermediate shaft W3 and the second transmission element Z2 of the output shaft W2.
In the two other operating modes or gear stages L 1 and L 2, the second switching device SE2 is in the neutral state, so that in the embodiment shown in Fig. 1a of a drive system 70 according to the invention with a first embodiment of a torque transmission device according to the invention according to the first alternative, the output shaft W2 is decoupled from the first drive motor 10.
However, the first drive motor 10 is rotatably connected via the intermediate shaft W3 and the rotor shaft W4 with the second drive motor 50, so that a drive power from the first drive motor 10 to the rotor shaft W4 and thus to the second drive motor 50 can be transmitted.
If this, as in this inventive drive system 70, designed as an electric machine 50, which can also be operated as a generator, charging of a battery connected to the generator 50 is thus possible, especially when the vehicle is stationary (because of the decoupled output shaft W2), i. at standstill.
The drive power of the first drive motor 10 can be transmitted to the rotor shaft W4 with two different ratios or two different gear ratios L 1 and L2, wherein for the first gear L 1, the first switching device SE1 occupies the first switching state S1 and the fourth switching device SE4 the first switching state S6, wherein for the second gear L 2 and the second operating mode for charging L 2, the first switching device SE1 occupies the second switching state S2.
In operating mode L 1, the drive power generated by the first drive motor 10 is transmitted via the drive shaft W1 to the first transmission element Z1 of the drive shaft W1, further via the first transmission element Z2 of the output shaft W2 and from there directly to the first transmission element Z9 of the intermediate shaft W3 and from there further on the gear stage, which is formed from the transmission elements Z14 and Z13, on the rotor shaft W4 to the second drive motor 50th
In the second "loading in stand" mode L 2, the drive power of the first drive motor 10 via the drive shaft W1 to the second transmission element Z3 of the drive shaft W1 and from there via the second transmission element Z4 of the output shaft W2, the first
Transmission element Z2 of the output shaft W2, further transmitted to the first transmission element Z9 of the intermediate shaft W3 and from there also via the intermediate shaft W3 and the gear stage with the transmission elements Z14 and Z13 on the rotor shaft W4 to the second drive motor 50th
If in each case the first switching device SE1, the second switching device SE2 and the fourth switching device SE4 are in the neutral state, the drive system 70 is idling, that is, no drive power is transmitted to the output shaft W2.
2a shows the transmission diagram of a second exemplary embodiment of a drive system 70 according to the invention with a second exemplary embodiment of a torque transmission device 60 according to the first alternative, wherein in this embodiment the torque transmission device 60, in addition to the torque transmission device 60 described with reference to FIG. 1a, has a fourth transmission element plane E4 having. This is defined by a fourth gear element Z7, which is assigned to the drive shaft W1, and by a fourth gear element Z8, which is assigned to the output shaft W2 and meshes with the fourth gear element Z7 of the drive shaft W1 and is rotationally connected to the third gear element Z6 of the output shaft W2 ,
Further, a third switching device SE3 is provided, by means of which in a first switching state S5 of the third switching device SE3 to the second drive motor 50. rotatably connected to the drive shaft W1, wherein in a neutral state of the third switching device SE3, the rotational connection between the fourth gear element Z7 of Drive shaft W1 and the drive shaft W1 is released.
By means of these three aforementioned additional components, the torque transmission device 60 according to the invention shown in FIG. 2a has three further gear stages, see FIG. 2b, in particular two further mechanical gear ratios VKM 3 and VKM 6, by means of which a drive power generated by the first drive motor 10 is applied to the Output shaft W2 can be transmitted, and another gear stage L 3 for the "loading at a standstill1 '., By means of which with decoupled output shaft W2 a drive power generated by the first drive motor 10 can be transmitted to the second drive motor 50.
In the first compared to FIGS. 1a and 1b additional gear VKM 3, which is applied when the third switching device SE3 in the first switching state S5 and the second switching device SE2 in the second switching state S4, wherein the first switching device SE1 is in the neutral state, one of The first drive motor 10 generated drive power via the drive shaft W1, the fourth transmission element Z7 of the drive shaft, which is non-rotatably connected by means of the third switching device SE3 with the drive shaft W1, transmitted along the fourth gear element plane E4 via the fourth gear element Z8 of the output shaft W2 to the output shaft W2.
In the second, additional operating mode VKM 6, which occurs when the third switching device SE3 is in the first switching state S5 and the second switching device SE2 in the first switching state S3, wherein the first switching device SE1 is in the neutral state, the transmission of the first drive motor 10 takes place generated drive power from the drive shaft W1 also via the fourth gear elements Z7 and Z8 of the fourth gear element level E4, but then not directly to the output shaft W2, but via the third gear elements Z6 and Z5 of the third gear element level E3 and the second gear elements Z3 and Z4 of the second gear element plane E2 on the output shaft W2. This gear VKM 6 is thus a winding course.
The third additional operating mode or the third additional gear L 3, which is made possible by the additional fourth gear element level E4 and the third switching device SE3, and allows the loading of a battery connected to the electric machine 50 at a standstill with a third translation, arises when the third switching device SE3 is in the first switching state S5 and the fourth switching device SE4 is in the first switching state S6, wherein the first switching device is in the neutral state. In this case, a drive power generated by means of the first drive mode 10 of the drive shaft W1 via the transmission elements Z7 and Z8 of the fourth gear element plane E4 via the transmission elements Z5 and Z6 of the third transmission element E3 level and via the transmission elements Z3 and Z4 of the second gear element plane E2 and are transmitted to the first transmission element Z9 of the intermediate shaft W3 via the transmission element Z2 of the output shaft W2 of the first transmission element plane E1 and from there via the intermediate shaft W3 and the transmission elements Z13 and Z14 to the rotor shaft W4.
Otherwise, the active compounds of the individual components described in conjunction with FIGS. 1a and 1b apply to each other as well as the described modes of operation, advantages and embodiments, in particular for the further transmission elements, switching devices and switching states.
3a shows the transmission diagram of a third exemplary embodiment of a drive system 70 according to the invention with a third exemplary embodiment of a torque transmission device 60 according to the first alternative, wherein this torque transmission device 60 differs from the torque transmission device 60 shown in FIG. 2a in that the first transmission element Z9 of the intermediate shaft W3 and the second gear element Z11 of the intermediate shaft W3 are not rotatably connected by means of a common, fourth switching device SE4 respectively alternatively with the intermediate shaft W3, but that the first gear element Z9 of the intermediate shaft and the second gear element Z11 of the intermediate shaft W3 each have their own, separate fourth or Fifth switching device SE4 or SE5 are assigned to the respective transmission element Z9 or Z11 rotatably connected to the intermediate shaft W3.
The fourth switching device SE4 is assigned to the first transmission element Z9 of the intermediate shaft W3, wherein in a first switching state S6 of the fourth switching device SE4, the first transmission element Z9 of the intermediate shaft W3 is rotatably connected to the intermediate shaft W3 and dissolved in a neutral state of the fourth switching device SE4 the rotary connection is.
The fifth switching device SE5 is associated with the second transmission element Z11 of the intermediate shaft W3, wherein in a first switching state S7 of the fifth switching device SE5, the second transmission element Z11 of the intermediate shaft W3 is rotatably connected to the intermediate shaft W3 and in a neutral state of the fifth switching device SE5, the rotary connection is released ,
Another constructive difference is that now the first transmission element Z12 of the output shaft W2 is disposed between the second transmission element Z15 of the output shaft W2 and the first gear element plane E1 and not, as in Fig 2a, the second transmission element of the output shaft W2 between the first transmission element Z12 of Output shaft W2 and the first gear element level E1.
As a result of the additional fifth shifting device SE5, there are three further gear stages VKM 2, VKM 4 and VKM 6 compared to the drive system 70 according to the invention or the associated torque transmission device 60 described with reference to FIGS. 2a and 2b, see FIG. 3b.
The other gear ratios or operating modes are identical to the gear ratios of FIGS. 2a and 2b, so that reference is made in this respect and below only the additional, resulting from the fifth switching device SE5 gear stages VKM 2, VKM 4 and VKM 6 closer be explained.
In the first additional operating mode VKM 2, which occurs when the first switching device SE1 is in the first switching state S1, the fourth switching device SE4 is in the first switching state S6, the fifth switching device SE5 is also in the first switching state S7 and the second switching device SE2 and the third switching device SE3 are each in the neutral state. In this case, transmission of a drive power generated by the first drive motor 10 from the drive shaft W1 via the transmission element Z1 and Z2 of the first gear element plane E1 to the first transmission element Z9 of the intermediate shaft W3, via the intermediate shaft W3 on the second transmission element Z11 of the intermediate shaft W3 and from there via the first further gear element Z12 to the output shaft W2, this being a winding gear, in particular a winding gear guided via the intermediate shaft W3.
In the second additional operating mode VKM 4, which occurs when the first switching device SE1 is in the second switching state S2 and the fourth switching device SE4 and the fifth switching device SE5 are each in the first switching state S6 or S7 and the second switching device SE2 and the third Switching device SE3 each in the neutral state, the transmission of a drive power generated by the first drive motor 10 starting from the drive shaft W1 via the transmission elements Z3 and Z4 of the second transmission element level E2 and from there via the first transmission element Z2 of the output shaft W2 to the first transmission element Z9 of the intermediate shaft W3 via the intermediate shaft W3 and via the second transmission element Z11 of the intermediate shaft W3 to the first further transmission element Z12 of the output shaft W2 and from there to the output shaft W2, which in this case is also a winding passage guided via the intermediate shaft W3.
The third additional gear VKM 6 sets when the third switching device SE3 is in the first switching state S5, the fourth switching device SE4 and the fifth switching device SE5 are each in the first switching state S6 and S7 and the second switching device SE2 and the third switching device SE3 are each in the neutral state, in which case a drive power generated by the first drive motor 10 of the drive shaft W1 via the transmission elements Z7 and Z8 of the fourth gear element level E4, from there via the transmission elements Z6 and Z5 of the third gear element level E3 and from there via the Transmission elements Z3 and Z4 of the second gear element plane E2 is transmitted to the first gear element Z2 of the first gear element level E1 and from there further via the first gear element Z9 of the intermediate shaft W3 via the intermediate shaft W3 on via the second transmission element Z11 of the intermediate shaft W3 on the first other Transmission element Z12 of the output shaft W2 and from there to the output shaft W2, which is also a guided over the intermediate shaft W3 Windungsgang.
That is, all three additional possible gears VKM 2, VKM 4 and VKM 6, which have resulted by adding a fifth switching device SE5, which is assigned to the intermediate shaft W3, are Windungsgänge, which are guided in particular via the intermediate shaft W3. That is, in these three gear stages each of the intermediate shaft W3 is integrated in the power path for transmitting a drive power generated by the first drive motor 10 to the output shaft W2. This in turn means that in the drive system 70 according to the invention shown in Fig. 3a in these three gear stages VKM 2, VKM 4 and VKM 6, the second drive motor 50 which is rotatably connected to the intermediate shaft W3, no longer decoupled, but is dragged along.
This does not necessarily have to be a disadvantage. In particular, when the second drive motor 50 is an electric machine that can also be operated as a generator, these gears can be used to charge a battery electrically connected to the electric machine 50.
In these three operating modes VKM 2, VKM 4 and VKM 6, respectively, the boosting by means of the electric machine 50 is possible, although in contrast to the previously described embodiments of a drive system 70 according to the invention, the superposition of the drive power generated by the second drive motor 50 with the first drive motor 10 generated drive power does not take place on the output shaft W2, but on the intermediate shaft W3. This means that when boosting, the rotational speed of the drive power transmitted from the second drive motor 50 to the intermediate shaft W3 is to be synchronized with the rotational speed of the drive power transmitted from the first drive motor 10 to the intermediate shaft W3 and not with the drive power transmitted to the output shaft W2.
In the illustrated in Fig. 3a third embodiment of a drive system 70 according to the invention with a third embodiment of a torque transmission device 60 according to the invention, the three additional Windungsgänge or operating modes VKM 2, VKM 4 and VKM 6 are each formed as forward gears, since the second transmission element Z11 directly with the first further transmission element Z12 of the output shaft W2 is engaged. Inserted here an additional, preferably mounted on a reverse shaft reverse gear element, the three guided via the intermediate shaft W3 Windungsgänge VKM 2, VKM 4 and VKM 6 respectively reverse gears or return gears and thus allow, in contrast to the previous, using the 1a to 3b described drive system 70 also reversing with the aid of the first drive motor 10 and not just a purely electric reverse drive by operating the second drive motor 50 in the reverse direction.
However, for starting by means of the first drive motor 10, if this is an internal combustion engine 10, either a switchable and in particular speed-controlled freewheel is required, which allows synchronization of the first drive motor 10 with the drive shaft W1 or instead of the freewheel 30 a separating clutch. Furthermore, to this end, all switching devices SE1 to SE5 of the torque transmission device 60 should each be designed as synchronizers and not as jaw clutches.
The reversing with the aid of the first drive motor 10 may be required in particular in an insufficient state of charge of the battery, especially if no electric drive is possible and / or a waiting time for the otherwise initially required charging the battery at standstill is not desirable.
Due to the flexibility of the torque transmission device 60 shown in FIG. 3a with regard to its possibilities of use or a drive system 70 according to the invention with such a torque transmission device 60, the torque transmission device 60 according to the invention or the associated drive system 70 shown in FIG. 3a represents a particularly advantageous embodiment of a torque transmission device 60 according to the invention ., A particularly advantageous drive system according to the invention.
Another, although somewhat less advantageous, but still extremely advantageous embodiment of a drive system according to the invention or a torque transmission device according to the invention also represents a torque transmission device according to the invention, which has only three transmission element planes E1, E2 and E3, that is, in which no fourth gear element plane E4 as in the 3a shown in Fig. 3a torque transmitting device according to the invention is present and, accordingly, no third switching device SE3. 3c shows the possible operating modes and the associated switching states of the switching devices SE1, SE2, SE4 and SE5 of such a drive system.
For even with only three gear element planes E1, E2, E3 six operating modes VKM 1 to VKM 6 are possible in which a drive power generated by the first drive motor 10 can be transmitted from the drive shaft W1 to the output shaft W2, three operating modes EM 1 to EM 3, in which purely electric driving is possible and two operating modes L 1 and L 2, which allow loading at a standstill.
With the elimination of the fourth gear element level E4 and the third switching device SE3 thereby a total of four gears or operating modes over the shown in Fig. 3a, drive system according to the invention 70 and the torque transfer device 60 according to the invention, namely the gear stages VKM 5, VKM 6, VKM 10th and L 3, with reference to FIG. 3 b, in particular all gear stages in which the power in the drive system 70 shown in FIG. 3 a is guided in each case via the fourth gear element plane E 4.
Furthermore, however, as shown with reference to Fig. 3c recognizable, two guided over the intermediate shaft W3 Windungsgänge available, namely the two gear stages VKM 2 and VKM 4. Thus can also with a torque transmission device according to the invention with only three transmission element levels E1 to E3 in a simple way and Way a torque transmission device can be provided, by means of which by adding an additional gear element between the second gear element Z9 of the intermediate shaft W3 and the first further gear element Z12 of the output shaft W2 a reverse driving with the aid of the first drive motor 10 is possible without otherwise significant loss of electrical driving when loading or during normal ferry service. In particular, four forward gears still remain available, in which a drive by means of the first drive motor 10 is possible, provided that the connection of the first drive motor 10 also takes place via a switchable, in particular speed-controlled freewheel and / or a disconnect clutch and correspondingly the switching devices SE1, SE2, SE4 and SE5 are designed as synchronizers.
Otherwise, the active compounds of the individual components described with reference to FIGS. 1a to 2b and the modes of action, advantages and embodiments described above apply, in particular for the further transmission elements, switching devices and switching states.
It goes without saying that the second drive motor 50 is in each case to operate according to the desired direction of travel with the corresponding direction of rotation or to synchronize the direction of rotation and speed with the drive power transmitted from the first drive motor 10 to the output shaft W2 and the intermediate shaft W3.
4a shows the transmission diagram of a fourth exemplary embodiment of a drive system 70 according to the invention with a fourth exemplary embodiment of a torque transmission device 60 according to the first alternative, wherein the same operating modes can be realized with the torque transmission device 60 shown in FIG. 4a in principle as in the case of FIG 2a and 2b explained embodiment of a torque transmission device 60 according to the invention.
However, the illustrated in Fig. 4a fourth embodiment of a torque transmission device 60 according to the invention differs from the embodiment shown in Fig. 2a, that in the embodiment shown in Fig. 4a, the first transmission element Z9 of the intermediate shaft W3 not with the first transmission element Z2 of the output shaft W2 meshes but with the second transmission element Z3 of the drive shaft W1, and that between the second transmission element Z11 of the intermediate shaft W3 and the first further transmission element Z12 of the output shaft W2 is provided a reversing shaft W6 with a reverse transmission element Z11X therebetween for rotational direction synchronization of the second transmission element Z11 Intermediate shaft W3 with the output shaft W2, resulting in the same number and distribution of the gear ratios or operating modes, see. Fig. 2b with Fig. 4b, result in accordance with other performance paths in the individual gear ratios.
In the gear stage VKM 1, which occurs when the first switching device SE1 is in the first switching state S1 and the second switching device SE2 in the second switching state S4, wherein the third switching device SE3 is in the neutral state, a drive power generated by the first drive motor 10 of the Drive shaft W1 via the transmission elements of the Z1 and Z2 of the first gear element plane E1, transmitted via the transmission elements Z4 and Z3 of the second gear element level E2 and the third gear elements Z5 and Z6 of the third gear element level E3 to the output shaft W2, wherein it is at this gear ratio to a Winding gear acts.
The second operating mode or the second gear VKM 2 sets when the first switching device SE1 is in the second switching state S2 and the second switching device SE2 is in the second switching state S4, wherein the third switching device is in the neutral state. In this case, a drive power generated by the first drive motor 10 is transmitted from the drive shaft W1 via the transmission elements Z5 and Z6 of the third transmission element level E3 to the output shaft W2.
In the third gear stage or in the third operating mode VKM 3, which occurs when the third switching device SE3 is in the first switching state S5 and the second switching device SE2 in the second switching state S4, wherein the first switching device SE1 is in the neutral state, the transmission takes place Drive power generated by the first drive motor 10 from the drive shaft W1 to the output shaft W2 via the transmission elements Z7 and Z8 of the fourth gear element plane E4.
In the fourth gear VKM 4, which occurs when the first switching device SE1 is in the first switching state S1 and the second switching device SE2 is in the first switching state S3, wherein the third switching device SE3 is in the neutral state, the power is transmitted from the first drive motor 10 generated drive power from the drive shaft W1 via the transmission elements Z1 and Z2 of the first gear element plane E1 to the output shaft W2.
In the fifth operating mode VKM 5, which occurs when the first switching device SE1 is in the second switching state S2 and the second switching device SE2 in the first switching state S3, wherein the third switching device SE3 is in the neutral state, the transmission of a drive power generated by the first drive motor 10 from the drive shaft W1 via the gear elements Z3 and Z4 of the second gear element plane E2 to the output shaft W2.
In the sixth and final mechanical operating mode VKM 6, the transmission of a drive power generated by the first drive motor 10 from the drive shaft W1 to the output shaft W2 via the transmission elements Z7 and Z8 of the fourth gear element level E4, further via the transmission elements Z6 and Z5 of the third gear element level E3, on the transmission elements Z3 and Z4 of the second gear element plane E2 to the output shaft W2, which is the third switching device SE3 in the first switching state S5, the second switching device SE2 in the first switching state S3 and the first switching device SE1 in the neutral state. This walk is also a winding course.
In all the VKM operating modes described above, boosting is likewise possible in each case, with either the first transmission element Z9 or the second transmission element Z11 of the intermediate shaft being connected to the intermediate shaft W3 in a rotationally fixed manner, in particular by means of the fourth switching device SE4, wherein in the first switching state S6 of the fourth switching device SE4, the first transmission element of the intermediate shaft W3 rotatably connected to the intermediate shaft W3 and in the second switching state S7, the second transmission element Z11.
With the illustrated in Fig. 4a fourth embodiment of a drive system 70 according to the invention with a torque transmission device 60 according to the invention can also, as with the illustrated in Fig. 2a second embodiment of a drive system 70 according to the invention, be driven in three gears purely electric.
In the first purely electrical operating mode EM 1, which occurs when the second switching device SE2 is in the second switching state S4 and the fourth switching device SE4 in the first switching state S6, wherein the first switching device SE1 and the third switching device SE3 are in the neutral state, one of second drive motor 50, in particular the electric machine 50 generated drive power thereby via the rotor shaft W4, the transmission elements Z13 and Z14 transferred to the intermediate shaft W3 and from there further via the first transmission element Z9 of the intermediate shaft W3 on the second transmission element Z3 of the drive shaft W1 second gear element level E2 and from there on via the transmission elements Z5 and Z6 of the third gear element plane E3 to the output shaft W2.
In the second purely electrical operating mode EM 2, which occurs when the fourth switching device SE4 is in the second switching state S7, and the remaining switching devices SE1, SE2 and SE3 in the neutral state, a drive power generated by the second drive motor 50 via the rotor shaft W4, the Transmission elements Z13 and Z14 transmitted to the intermediate shaft W3 and from there via the intermediate shaft W3 and the second gear element Z11 of the intermediate shaft W3 and the reverse gear Z11X and the first further transmission element Z12 of the output shaft W2 to the output shaft. This operating mode or gear ratio EM 2, as explained in detail in connection with the first exemplary embodiment of a drive system 70 according to the invention shown in FIG. 1 a, constitutes a so-called "gate-que-fill" gear, which provides load-interruption-free switching between two mechanical gears allows.
In the third purely electrical operating mode EM 3, which occurs when the second switching device SE2 is in the first switching state S3 and the fourth switching device SE4 in the first switching state S6 and the first switching device SE1 and the third switching device SE3 in the neutral state, that of the second drive motor 50 generated drive power via the rotor shaft W4, the transmission elements Z13 and Z14 via the intermediate shaft W3 and via the first transmission element Z9 of the intermediate shaft W3 transmitted to the second transmission element Z3 of the drive shaft W1 and from there via the second transmission element Z4 of the output shaft W2 to the output shaft W2.
Likewise, as in the case of the second exemplary embodiment of a drive system 70 according to the invention shown in FIG. 2a, charging in standstill with three different ratios is also possible in the case of the fourth exemplary embodiment of a drive system 70 according to the invention shown in FIG. 4a.
In a first associated charging gear L 1, which occurs when the first switching device SE1 is in the first switching state S1 and the fourth switching device SE4 in the first switching state S6, wherein the second switching device SE2 and the third switching device SE3 are in the neutral state, is a drive power generated by the first drive motor 10 from the drive shaft W1 via the transmission elements Z1 and Z2 of the first gear element plane E1, further via the transmission elements Z4 and Z3 of the second gear element plane E2 via the first gear element Z9 of the intermediate shaft W3, via the intermediate shaft W3 and the transmission elements Z14 and Z13 transmitted to the rotor shaft W4, which is in this case a Windungsgang.
In the operating mode L 2 with decoupled output shaft W2 a drive power generated by the first drive motor 10 of the drive shaft W1 via the second transmission element Z3 of the drive shaft W1 on the first transmission element Z9 of the intermediate shaft W3, the intermediate shaft W3 and further via the transmission elements Z14 and Z13 the rotor shaft W4 and transmitted from there to the second drive motor 50, wherein this gear is obtained when the first switching device SE1 is in the second switching state S2 and the fourth switching device SE4 in the first switching state S6, wherein the second switching device SE2 and the third switching device SE3 are in the neutral state.
In the third operating mode L 3, which also allows charging at a standstill with uncoupled output shaft W2 and which occurs when the third switching device SE3 is in the first switching state S5 and the fourth switching device SE4 in the first switching state S6, wherein the first switching device SE1 and second switching device SE2 are in the neutral state, a drive power generated by the first drive motor 10 of the drive shaft W1 via the transmission elements Z7 and Z8 the fourth gear element level E3, further via the transmission elements Z6 and Z5 of the third gear element level E3, on the second transmission element Z3 of the second Transmission element level E2 and the first transmission element Z9 of the intermediate shaft W3 and the intermediate shaft W3 and transmitted via the transmission elements Z14 and Z13 to the rotor shaft W4 and from there to the second drive motor 50 and the generator 50, which is also in this case a winding passage.
If in each case the first switching device SE1, the second switching device SE2 and the fourth switching device SE4 are in the neutral state, the drive system 70 is idling, that is, no drive power is transmitted to the output shaft W2.
This embodiment of a torque transmission device 60 according to the invention or a drive system 70 according to the invention is particularly advantageous if not enough space for the intermediate shaft W3 in connection with the second drive motor 50 is available laterally next to the output shaft W2, but this is present laterally to the drive shaft W1.
Another, advantageous drive system according to the invention results from the omission of the fourth gear element plane E4 and the third shift device SE3, although in this case the gear stages VKM 3, VKM 6 and L 3 of FIG. 4 b are omitted, but still a particularly flexible usable Torque transmission device or a particularly flexible usable drive system is maintained.
5a shows the transmission diagram of a fifth exemplary embodiment of a drive system 70 according to the invention with a fifth exemplary embodiment of a torque transmission device 60 according to the invention, wherein the torque transmission device 60 shown in FIG. 5a differs from the torque transmission device 60 shown in FIG. 4a in that in the fifth embodiment in Fig. 5a the first gear element Z9 of the intermediate shaft W3 and the second gear element Z11 of the intermediate shaft W3 each own, separate fourth switching device SE4 and SE5 fifth switching device is assigned SE5, by means of which the respective transmission element Z9 or Z11 of the intermediate shaft W3 with the intermediate shaft W3 rotatably connected or the rotational connection with the intermediate shaft W3 can be solved.
As explained above with reference to the third embodiment, cf. Fig. 3a and 3b, leads here also the introduction of an additional fifth switching device SE5 to additional
Gear stages, see Fig. 5b, wherein compared to the fourth, shown in Fig. 4a embodiment by the fifth switching device SE5 additionally three, guided over the intermediate shaft W3 Windungsgänge VKM 2, VKM 4 and VKM 6 are possible.
In this gear stages must in this embodiment due to the rotationally fixed connection of the intermediate shaft W3 with the second drive motor 50, this also be entrained, unless it is used for boosting, the second drive motor 50 is preferably operated in this case as a generator and for charging a connected battery is used. If this is not desired, a switchable disconnect clutch is preferably provided in the power path between intermediate shaft W3 and second drive motor 50.
In the first additional operating mode VKM 2, which occurs when the first switching device SE1 is in the first switching state S1 and both the fourth switching device SE4 and the fifth switching device SE7 are in the respective first switching state S6 or S7, wherein the second switching device SE2 and the third switching device SE3 are in the neutral state, a drive power generated by the first drive motor 10 from the drive shaft W1 via the transmission elements Z1 and Z2 of the first transmission element level E1 on the transmission elements Z4 and Z3 the second gear element level E2 via the first transmission element Z9 of the intermediate shaft W3 , the intermediate shaft W3 and further transmitted via the second gear element Z11 of the intermediate shaft W4, the reverse gear element Z11X and the first further gear element Z12 to the output shaft W2, which is a winding gear, in particular one via the intermediate shaft e guided winding course.
The second additional winding path guided via the intermediate shaft W3 is represented by the operating mode VKM 4, which occurs when the first switching device SE1 is in the second switching state S2 and the fourth switching device SE4 and the fifth switching device SE5 are respectively in the first switching state S6 and S6 S7, wherein the second switching device SE2 and the third switching device SE3 are in the neutral state. In this case, a drive power generated by the first drive motor 10 from the drive shaft W1 via the second transmission element Z3 of the second
Transmission element level E2 and further via the first transmission element Z9 of the intermediate shaft W3 and via the intermediate shaft W3 and the second transmission element Z11 of the intermediate shaft W3, further transmitted via the reverse gear Z11X and the first further transmission element Z12 of the output shaft W2 to the output shaft W2.
The third additional winding path guided via the intermediate shaft W3 is represented by the operating mode VKM 6, which occurs when the third switching device SE3 is in the first switching state S5 and likewise the fourth switching device SE4 and the fifth switching device SE5 are each in the first switching state S6 or S7 and the first switching device SE1 and the second switching device SE2 are in the neutral state. In this case, a drive power generated by the first drive motor 10 of the drive shaft W1 via the transmission elements Z7 and Z8 of the fourth gear element level E4, further on the transmission elements Z6 and Z5 of the third transmission element level E3 and from there via the second transmission element Z3 of the second gear element level E2 transmitted to the first transmission element Z9 of the intermediate shaft W3 and from there via the intermediate shaft W3 and the second gear element Z11 of the intermediate shaft W3, the reversing shaft W6 and the reverse gear Z11X further to the first further transmission element Z12 of the output shaft W2 and from there to the Output shaft W2.
Because of the provided between the second gear element Z11 of the intermediate shaft W3 and the first further gear element Z12 of the output shaft W2 reversing gear element Z11X and the reversing shaft W6 are the three above-described additional, guided through the intermediate shaft W3 Windungsgänge VKM 2, VKM 4 and VKM 6 also each formed as forward gears.
Otherwise, the effective connections of the individual components described with reference to FIGS. 4a to 4b and the modes of action, advantages and embodiments described above apply, in particular for the further transmission elements, switching devices and switching states.
In order to obtain a further, particularly advantageous torque transmission device according to the invention, in which the intermediate shaft W3 is arranged laterally next to the drive shaft W1, but also reversing with the aid of the first drive motor 10 is possible, only the reversing shaft W6 with the reverse transmission element Z11X is closed remove and directly engage the second gear element Z11 of the intermediate shaft W3 with the first further gear element of the output shaft W2 or alternatively add another reversing shaft with another reversing gear element to the direction of rotation synchronization.
As described in connection with a modification of the drive system 70 according to the invention or the torque transmission device 60 shown in FIG. 3a, it is necessary for starting only with the first drive motor 10 that either a switchable, in particular speed-controlled freewheel 30 is provided or a disconnect clutch for speed synchronization of the first drive motor 10 with the drive shaft W1, wherein preferably all the switching devices SE1 to SE5 are designed as synchronizers and not as jaw clutches.
A torque-transmitting device which allows reversing solely with the drive power of the first drive motor 10 is advantageous for the same reasons as described in connection with the advantageous modification of the inventive torque-transmitting device 60 shown in Fig. 3a, namely at a low state of charge of the battery, especially at such a low state of charge that a purely electric start is no longer possible.
A further advantageous drive system according to the invention results from removing the fourth gear element plane E4 and the third shift device SE3, although in this case the gear stages VKM 5, VKM 6, VKM 9 and L 3 in FIG. 5 b are omitted, but still one particularly flexibly usable torque transmission device or a particularly flexible usable drive system is maintained, which even has two mechanical reverse gears when the reverse shaft W6 with the reversing gear element Z11x is omitted.
It goes without saying that the second drive motor 50 is also in this case to operate according to the desired direction of travel with the corresponding direction of rotation or direction of rotation and speed with the drive power transmitted from the first drive motor 10 to the output shaft W2 and the intermediate shaft W3 to synchronize.
6a shows the transmission diagram of a sixth exemplary embodiment of a drive system 70 according to the invention with a sixth exemplary embodiment of a torque transmission device 60 according to the invention, this torque transmission device 60 being designed according to a second alternative and differing from the torque transmission devices 60 previously described with reference to FIGS. 1a to 5b, that the first switching device SE1 is assigned in this case the output shaft W2 and not the drive shaft W1. Furthermore, the second switching device SE2 is assigned to the drive shaft W1 and not to the output shaft W2.
Further, the first transmission element Z1 of the drive shaft W1 rotatably connected to the second transmission element Z3 of the drive shaft W1, in particular by means of a common, concentrically arranged outside the drive shaft W1 hollow shaft, and the second transmission element Z4 of the output shaft W2 is rotatably connected to the third transmission element Z6 of Output shaft W2 connected, in particular by means of a common, concentrically arranged outside the output shaft W2 hollow shaft.
This is also the case in the following drive systems 70 according to the invention with further exemplary embodiments of torque transmission devices 60 according to the invention, which are explained with reference to FIGS. 7a to 8b in the further course of this application.
Another difference is that in the drive system 70 garnished in Fig. 6a, furthermore, the first transmission element Z9 of the intermediate shaft W3 is rotatably connected to the third transmission element Z6 of the output shaft W2 and not to the first transmission element Z2 of the output shaft W2 (see Fig. 1a to 3c) or the second transmission element Z3 of the drive shaft W1 (see Fig. 4a to 5b).
The torque transmission device 60 according to the invention shown in FIG. 6a likewise has, just like the torque transmission device 60 according to the invention shown in FIG. 1a, only three transmission element planes E1, E2 and E3, with the torque transmission device 60 according to the invention shown in FIG same number and distribution results in gear ratios, see Fig. 6 b, only with correspondingly different power paths, which will be explained in the following at least partially.
In the first gear VKM 1, which occurs when the first switching device SE1 is in the first switching state S1 and the second switching device SE2 in the second switching state S4, generated by the first drive motor 10 drive power from the drive shaft W1 via the third transmission elements Z5 and Z6 of the third gear element level E3 further transmitted to the transmission elements Z4 and Z3 of the second gear element level E2 and from there on via the transmission elements Z1 and Z2 of the first gear element plane E1 to the output shaft W2, which is in this case a Windungsgang. In the second gear stage VKM 2, a drive power generated by the first drive motor 10 is transmitted from the drive shaft W1 via the transmission elements Z1 and Z2 of the first gear element plane E1 directly to the output shaft W2, to which the first switching device SE1 must be in the first switching state S1 and the second switching device SE2 in the first switching state S3.
In the third gear VKM 3, in which a drive power from the first drive motor 10 can be transmitted to the output shaft W2, the transmission of the drive power from the drive shaft W1 via the transmission elements Z5 and Z6 of the third gear element level E3 to the output shaft W2, wherein the first switching device SE1 must take the second switching state S2 and the second switching device SE2 also the second switching state S4. For the fourth gear VKM 4, which occurs when the first switching device SE1 is in the second switching state S2 and the second switching device SE2 in the first switching state S3, the transmission of a drive power generated by the first drive motor 10, starting from the drive shaft W1 via the transmission elements Z3 and Z4 of the second gear element plane E2 to the output shaft W2.
Also in this sixth embodiment of a torque transmission device 60 according to the invention or a sixth embodiment of a drive system 70 according to the invention in all of the aforementioned of the four operating modes VKM 1 to VKM 4, in which a drive power generated by the first drive motor 10 can be transmitted to the output shaft W2, a Boost possible, that is, it can additionally be applied with the aid of the second drive motor 50, an additional torque to the output shaft W2, wherein the second drive motor 50, in particular the electric machine 50, thereby also to control such that the additional torque speed synchronized to the Output shaft W2 is applied.
Also, as in the first embodiment of a drive system 70 according to the invention described with reference to FIG. 1a, a purely electric driving in three gear ratios is possible, wherein a first electric gear stage EM 1 sets when the first shift device SE1 is in the first switching state S1 and the fourth switching device SE4 in the first switching state S6, wherein the second switching device SE2 is in the neutral state. In this case, a drive power generated by the second drive motor 50, in particular an electric drive power, via the rotor shaft W4, the transmission elements Z13 and Z14 transmitted to the intermediate shaft W3 and from this further via the first transmission element Z9 of the intermediate shaft W3, via the third transmission element Z6 the output shaft W2 and further via the second gear elements Z4 and Z3 of the second gear element plane E1 and the first gear elements Z1 and Z2 of the first gear element plane E1 to the output shaft W2, which is in this case a Windungsgang.
If the first switching device SE1 and the second switching device SE2 are in the neutral state and the fourth switching device SE4 is in the second switching state S7, the second purely electrical operating mode EM 2 results, in which the drive power generated by the second electric drive motor 50 is transmitted via the rotor shaft W4, the transmission elements Z13 and Z14 is transmitted to the intermediate shaft W3 and from there further via the intermediate shaft W2 via the second transmission element Z11 of the intermediate shaft W3 and the first further transmission element Z12 of the output shaft W2 to the output shaft W2, wherein with the aid of this gear stage a load interruption-free switching between two mechanical gear steps is possible, the so-called "torque fill".
The third purely electric gear stage EM 3 results when the first switching device SE1 is in the second switching state S2 and the fourth switching device SE4 in the first switching state S6 and the first switching device SE1 in the neutral state, in which case the drive power generated by the second drive motor 50 via the rotor shaft W4, the transmission elements Z13 and Z14 via the intermediate shaft W3 and the first transmission element Z9 of the intermediate shaft W3 is transmitted to the third transmission element Z6 of the output shaft W2 and from there via the second transmission element Z4 of the output shaft W2 to the output shaft W2.
As in the torque transmission device 60 according to the invention described with reference to FIG. 1a or in the associated first embodiment of a drive system 70 according to the invention, the "charging at standstill" with decoupled output shaft W2 is also possible with the sixth exemplary embodiment of a drive system 70 according to the invention shown in FIG also in two different gear ratios.
The first gear ratio L 1 results in this case when the second shift device SE2 is in the first shift state S3 and the fourth shift device SE4 in the first shift state S6 and the first shift device SE2 in the neutral state, in which case a drive power generated by the first drive motor 10 from the drive shaft W1 via the second transmission elements Z3 and Z4 of the second transmission element level E2, further transmitted via the third transmission element Z6 of the output shaft W2 to the first transmission element Z9 of the intermediate shaft W3 and from there via the transmission element Z14 and the transmission element Z13 to the rotor shaft W4 and from there to the second drive motor 50.
The second operating mode L 2, in which the charging in the state is possible, results when the second switching device SE2 is in the second switching state S4, the first switching device SE1 in the neutral state and the fourth switching device SE4 in the first switching state S6, in which case a drive power generated by the first drive motor 10 is transmitted from the drive shaft W1 via the transmission elements Z5 and Z6 of the third gear element level E3 to the first transmission element Z9 of the intermediate shaft W3 and from there via the intermediate shaft W3 on via the transmission element Z14 of the intermediate shaft W3 and the transmission element Z13 of the rotor shaft W4 on the rotor shaft W4.
7 a shows a seventh exemplary embodiment of a drive system 70 according to the invention with a seventh exemplary embodiment of a torque transmission device 60 according to the invention designed according to the second alternative, wherein this drive system 70 or torque transmission device 60 is derived from the drive system 70 or the drive system 70 described with reference to FIGS. 6 a and 6 b. the associated torque transmitting device 60 only differs in that in the seventh embodiment, a fourth gear element level E4 is additionally provided with a fourth gear element Z7, which is assigned to the drive shaft W1 and a fourth gear element Z8, which is associated with the output shaft W2, and a third switching device SE3 , By means of which in a first switching state S5, the fourth gear element of the output shaft W2 can be rotatably connected to the output shaft W2.
The fourth gear element Z7, which is assigned to the drive shaft W1, is connected in a rotationally fixed manner to the third gear element Z5 of the drive shaft W1, in particular via a common, concentrically arranged outside the drive shaft W1 Flohlwelle.
Analogous to the described with reference to FIGS. 2a and 2b second embodiment of a drive system 70 according to the invention described with reference to FIGS. 1a and 1b, the first embodiment of a drive system 70 according to the invention result from the additional fourth gear element level E4 and the additional third switching device SE3 also three additional Gear stages, see Fig. 7b, in particular also in the form of two additional mechanical gear ratios VKM 5 and VKM. 6
In a trained according to the second alternative torque transmission device 60 is obtained by an additional fourth gear element level E4 and an additional third switching device SE3, however, no additional gear for "loading at a standstill", but an additional gear EM 4, which is the purely electric driving with a fourth translation allows, see Fig. 7b.
The first additional gear VKM 5 compared to the drive system 70 and the torque transmission device of Fig. 6a and 6b adjusts itself, when the first switching device SE1 is in the neutral state, the second switching device SE2 in the second switching state S4 and the third switching device SE3 in the switching state S5. The transmission of the drive power generated by the first drive motor 10 takes place starting from the drive shaft W1 via the fourth gear elements Z7 and Z8 of the fourth gear element plane E4 and from there directly to the output shaft W2.
In the second additional mechanical drive VKM 6, which occurs when the first switching device SE1 is in the neutral state, the second switching device SE2 in the first switching state S3 and the third switching device SE3 in the fourth switching state S5, the transmission of a drive power generated by the first drive motor 10 takes place proceeding from the drive shaft W1 via the second gear elements Z3 and Z4 of the second gear element plane E2 via the third gear elements Z5 and Z6 of the third gear element plane E3 on the fourth gear elements Z7 and Z8 of the fourth gear element plane E4 and from there to the output shaft W2, where it is in this case is also a winding course.
The two above-described additional mechanical ratios VKM 5 and VKM 6 also allow an additional boost operation, in which by means of the second drive motor 50, an additional torque is applied, in particular an additionally electrically generated torque, again in this case the torque speed synchronized to the Output shaft W2 is applied. The boosting can take place either via the first transmission element Z9 of the intermediate shaft W3 or via the second transmission element Z11 of the intermediate shaft W3.
This additional fourth purely electric gear stage EM 4 adjusts itself when the first switching device SE1 and the second switching device SE2 are in the neutral state and the third switching device SE3 in the switching state S5 and the fourth switching device SE4 in the first switching state S6. In this case, a drive power generated by the second drive motor 50 via the rotor shaft W4 and the transmission elements Z13 and Z14 transmitted to the intermediate shaft W3, from there on via the first transmission element Z9 of the intermediate shaft W3 on the third transmission elements Z6 and Z5 the third gear element level E3 on to the fourth gear elements Z7 and Z8 of the fourth gear element plane E4 and from there directly to the output shaft W2, wherein this gear is a Windungsgang.
Otherwise, the active compounds of the individual components described in connection with FIGS. 6a to 6b apply to one another, as well as the modes of operation, advantages and embodiments described, in particular for the further transmission elements, switching devices and switching states.
Fig. 8a shows an eighth embodiment of a drive system 70 according to the invention with an eighth embodiment of a torque transmission device 60 according to the invention according to the second alternative, this torque transmission device 60 is different from the previously described seventh embodiment of a torque transmission device according to the invention that means of the fourth switching device SE4, only the first Transmission element Z9 of the intermediate shaft W3 can be rotatably connected to the intermediate shaft W3 and the rotary connection of the second gear element Z11 of the intermediate shaft W3 with the intermediate shaft W3 an additional, fifth switching device SE5 is provided, as in principle in the previously described, with reference to FIG and 5a explained embodiments.
This results in this case compared to the embodiment of Figures 7a and 7b, two additional gear ratios, in each of which a drive power generated by the first drive motor 10 can be performed by means of a Windungsgangs via the intermediate shaft W3 to the output shaft, namely the two operating modes VKM 2 and VKM 4, see Fig. 8b
Here, the first additional gear VKM 2 sets when the first switching device SE1 and the third switching device SE3 are in the neutral state, the second switching device SE2 is in the second switching state S4 and each fourth switching device SE4 and the fifth switching device SE5 in the first Switching state S6 or S7 are located. In this case, a drive power generated by the first drive motor 10 is transmitted from the drive shaft W1 via the third transmission elements Z5 and Z6 of the third transmission element level E3 further to the first transmission element Z9 of the intermediate shaft W3, from there via the intermediate shaft W3 on the second transmission element Z11 the intermediate shaft W3 and from there via the first further transmission element Z12 of the output shaft W2 to the output shaft W2.
In the second additional, guided via the intermediate shaft gear VKM 4, which occurs when the first switching device SE1 and the third switching device SE3 are in the neutral state and the second switching device SE2 in the first switching state S3 and the fourth switching device SE4 and the fifth switching device SE5 are each in the first switching state S6 or S7, the transmission of the drive power generated by the first drive motor 10, starting from the drive shaft W1 via the second transmission elements Z3 and Z4 of the second transmission element level E2, further to the third transmission element Z6 of the output shaft W2 and from there further on the first transmission element Z9 of the intermediate shaft W3, via the intermediate shaft W3 to the second transmission element Z11 of the intermediate shaft W3 and from there via the first further transmission element Z12 of the output shaft to the output shaft W2.
In these two additional gear stages VKM 2 and VKM 4, an additional torque can be applied by means of the second drive motor 50, that is, a boost operation is also possible.
Like the fourth as well as the third embodiment of a drive system 70 according to the invention explained with reference to FIG. 3a, the eighth exemplary embodiment of a torque transmission device 60 according to the invention shown in FIG. 8a likewise forms an advantageous starting point for a further particularly advantageous embodiment of a drive system according to the invention or a particularly advantageous inventive system Torque transmission device, which is achieved when between the second gear element Z11 of the intermediate shaft W3 and the first further gear element Z12 of the output shaft W2 is still provided an additional, preferably non-rotatably connected to an additional reversing shaft reverse gear element.
As a result, the two gear stages VKM 2 and VKM 4 are due to the reverse direction caused by the additional reversing gear element reverse gears or Retourgängen with which the reverse drive using the drive power generated by the first drive motor 10 is possible, provided the first drive motor 10 in a suitable manner , in particular via a separating clutch or a switchable, speed-controlled freewheel with the drive shaft W1 is drehverbindbar or has a correspondingly formed control.
It goes without saying that the second drive motor 50 is also in this case to operate according to the desired direction of travel with the corresponding direction of rotation or direction of rotation and speed with the drive power transmitted from the first drive motor 10 to the output shaft W2 and the intermediate shaft W3 to synchronize.
9a shows the gear plan of a ninth embodiment of a drive system 70 according to the invention with a ninth embodiment of a torque transmission device 60 according to the invention according to the second alternative, with the torque transmission device 60 shown in Fig. 9a in principle the same operating modes can be realized as in the case of the 6a and 6b explained embodiment of a torque transmission device 60 according to the invention, see. Fig. 9b with Fig. 6b.
However, the embodiment shown in FIG. 9a differs from the embodiment shown in FIG. 6a in that in the embodiment shown in FIG. 9a, the intermediate shaft W3 with its associated first transmission element Z9 and the second transmission element Z11, that of the intermediate shaft W3 associated fourth switching device SE4, the second drive motor 50 with the rotor shaft W4 and the two transmission elements Z13 and Z14, via which the second drive motor 50 is rotatably connected in this embodiment with the intermediate shaft W3, are arranged laterally from the drive shaft W1 and not as in the in Fig. 6a illustrated embodiment, laterally from the output shaft W2.
In this case, the first gear element Z9 of the intermediate shaft W3 engages or meshes with the first gear element Z1 of the drive shaft W1, and the second gear element Z11 is, by virtue of the rotation direction synchronization required in this case, connected via a reversing shaft connected to a reversing shaft W6. Transmission element Z11X via the first further transmission element Z12 of the output shaft W2 rotatably connected to the output shaft W2, wherein the reverse transmission element Z11X meshes with the first further transmission element Z12. Accordingly, different power paths also result in the individual gear stages.
In the gear stage VKM 1, which occurs when the first switching device SE1 is in the first switching state S1 and the second switching device SE2 is in the second switching state S4, a drive power generated by the first drive motor 10, starting from the drive shaft W1 via the transmission elements Z5 and Z6 of the third gear element level E3, further transmitted via the transmission elements Z4 and Z3 of the second gear element plane E2, and from there via the transmission elements Z1 and Z2 of the first gear element plane E1 to the output shaft W2, wherein this gear is a Windungsgang.
The second gear VKM 2 is set when the first switching device SE1 is in the second switching state S2 and the second switching device SE2 is also in the second switching state S4, wherein in this gear a generated by the first drive motor 10 drive power from the drive shaft W1 on the third Transmission elements Z5 and Z6 of the third gear element level E3 is transmitted to the output shaft W2.
In the third mechanical gear VKM 3, which occurs when the first switching device SE1 is in the first switching state S1 and the second switching device SE2 is also in the first switching state, a drive power generated by the first drive motor 10 from the drive shaft W1 via the first transmission elements Z1 and Z2 of the first transmission element level E1 transmitted to the output shaft W2.
In the fourth and for this embodiment last mechanical gear stage VKM 4, which occurs when the first switching device SE1 is in the second switching state S2 and the second switching device SE2 in the first switching state S3, the transmission of a drive power generated by the first drive motor 10, starting from the drive shaft W1 via the second transmission elements Z3 and Z4 of the second gear element plane E2.
As in the above-described embodiments of a drive system 70 according to the invention or a torque transmission device 60 according to the invention, boosting is also possible in all mechanical gear stages VKM 1 to VKM 4 in this drive system 70 according to the invention shown in FIG. the additional superimposition of a drive power generated by the second drive motor 50, in particular the superimposition of an electrical drive power.
Alternatively, in all mechanical gear stages VKM 1 to VKM4, as well as in all previously described embodiments in each of all mechanical gear ratios, in principle with a corresponding design of the second drive motor 50 and corresponding control of the second drive motor 50 each have a regenerative operation of the second drive motor 50 is possible , and thus in each case in all mechanical gear stages loading a battery connected to the second drive motor 50 battery while driving.
On the other hand, if the first switching device SE1 is in the first switching state S1, while the second switching device SE2 is in the neutral state and the fourth switching device SE4 is also in the first switching state S5, the gear stage EM 1 is engaged. In this, the first drive motor 10 is decoupled from the output shaft, so that with an electric motor 50 as a second drive motor 50, a purely electric driving is possible. In this case, a drive power generated by the second drive motor 50 is transmitted via the rotor shaft W4, via the transmission elements Z13 and Z14 to the intermediate shaft W3, from there via the first transmission element Z9 of the intermediate shaft W3 to the first
Transmission elements Z1 and Z2 of the first gear element plane E1 and above this on the output shaft W2.
In the gear stage EM 2, which occurs when the first switching device SE1 and the second switching device SE2 are in the neutral state and the fourth switching device SE4 is in the second switching state S7, one obtains the so-called "torque fill" mode, the quasi one Represents direct drive to the output shaft W2, wherein in this gear stage EM 2 a drive power generated by the second drive motor 50 via the rotor shaft W4, the transmission elements Z13 and Z14 is transmitted to the intermediate shaft W3, and from there via the second transmission element Z11 of the intermediate shaft W3, the reverse transmission element Z11X on the first further transmission element Z12 of the output shaft and via this to the output shaft W2.
The third gear stage EM 3, in which a drive power generated purely by the second drive motor 50 can be transmitted to the output shaft W2 when the drive shaft W1 is decoupled from the output shaft W2, adjusts itself when the first shift device SE1 is in the second shift state S2, the second Switching device SE2 is in the neutral state and the fourth switching device SE4 in the first switching state S6. In this gear stage, the transmission of a drive power generated by the second drive motor 50 via the rotor shaft W4, the transmission elements Z13 and Z14 on the intermediate shaft W3, from there on via the first transmission element Z9 of the intermediate shaft W3 via the first transmission element Z1 the first gear element level E1 on the second transmission elements Z3 and Z4 of the second gear element plane E2 and from there to the output shaft W2.
Likewise, with the exemplary embodiment of a drive system 70 according to the invention or a torque transmission device 60 according to the invention shown in FIG. 9a, charging in two gear stages L1 and L2 is possible, the first gear stage L1 being established when the first shifting device SE1 is in the neutral state, the second switching device SE2 in the first switching state S3 and the fourth switching device SE4 in the first switching state S6. In this case, the transmission of a drive power generated by the first drive motor 10 of the drive shaft W1 via the first transmission element Z1 of the first transmission element level E1 and the first takes place
Transmission element Z9 of the intermediate shaft W3 on the intermediate shaft W3 and from there via the transmission elements Z13 and Z14 on the rotor shaft W4 and from this on the second drive motor 50 to a battery connected to this, if the drive system 70 is designed accordingly and this function is supported ,
The second possible gear L2, which allows a store at a standstill, is set when the first switching device SE1 is in the neutral state, the second switching device SE2 in the second switching state S4 and the fourth switching device SE4 in the first switching state S6. In this case, the transmission of a drive power generated by the first drive motor 10 of the drive shaft W1 via the third transmission elements Z5 and Z6 of the third transmission element level E3, of these further on the second transmission elements Z4 and Z3 of the second gear element level E2, of these further via the first transmission element Z1 of the drive shaft W1 and the first transmission element Z9 of the intermediate shaft W3 and the transmission elements Z14 and Z13 on the rotor shaft W4 and from there on to the second drive motor 50, wherein it is a Windungsgang in this gear ratio.
The configuration shown in FIG. 9a of a torque transmission device 60 according to the invention or a drive system 70 according to the invention is likewise particularly advantageous if there is insufficient space for the intermediate shaft W3 in connection with the second drive motor 50 laterally beside the output shaft W2, but this laterally to the Drive shaft W1 is present.
Fig. 10a shows the transmission diagram of a tenth embodiment of a drive system 70 according to the invention with a tenth embodiment of a torque transmission device 60 according to the invention, wherein the torque transmission device 60 shown in Fig. 10a differs from the torque transmission device 60 according to the invention shown in Fig. 9a, that in the tenth embodiment in Fig. 10a in addition a fourth gear element level E4 is provided with fourth gear elements Z7 and Z8, wherein the fourth gear element Z7 rotatably connected to the third gear element Z5 of the drive shaft W1, in particular via a common hollow shaft, and wherein the fourth gear element Z8 of the output shaft W2 is assigned and by means of a likewise additional, third switching device SE3 with the output shaft W2 can be rotatably connected.
Due to the additional fourth gear element level E4 in conjunction with the additional, third switching device SE3 with respect to the embodiment shown in Fig. 9a of a drive system 70 according to the invention or a torque transmission device 60 according to the invention results in three additional gear ratios, s. Fig. 10b, namely two additional mechanical gear ratios VKM 5 and VKM 6 and an additional gear stage EM 4, which allows a purely electric driving with a fourth translation.
The other resulting gear ratios in the embodiment shown in Fig. 10a are identical to the gear ratios of the embodiment of FIG. 9a, but only differently designated. Therefore, for these gear stages, the basic statements made in each case in connection with FIGS. 9a and 9b apply, in particular with regard to the power paths resulting for the respective switching states and the associated advantages and possibilities.
The first additional mechanical gear VKM 5, resulting in the fourth gear element level E4 in conjunction with the additional third switching device SE3 in the embodiment shown in Fig. 10a, adjusts itself when the first switching device SE1 is in the neutral state, the second switching device SE2 in the second switching state S4 and the third switching device SE3 in the first switching state S5. In this gear stage VKM 5, a drive power generated by the first drive motor 10 can be transmitted from the output shaft W1 via the fourth gear elements Z7 and Z8 of the fourth gear element plane E4 to the output shaft W2.
In the second, additional mechanical gear stage VKM 6, which results when the first switching device SE1 is in the neutral state, the second switching device SE2 in the first switching state S3 and the third switching device SE3 in the first switching state S5, a winding turns, in which the drive power generated by the first drive motor 10, starting from the drive shaft W1 via the second transmission elements Z3 and Z4 of the second transmission element level E2 is further transmitted to the third transmission elements Z6 and Z5 of the third transmission element level E3 and from there on the fourth transmission elements Z7 and Z8 of the fourth Transmission element level E4 and from there to the output shaft W2.
In contrast to the torque-transmitting devices 60 according to a first alternative described above or the associated, to the above drive systems 70 causes the addition of a fourth gear element level E4 in conjunction with an additional third switching device SE3 in a torque transmission device 60 according to the invention, which is formed according to the second alternative no additional translation with a store in the state is possible (L3), but an additional gear stage EM 4, which allows the pure electric driving with a fourth translation.
This additional fourth gear stage EM 4 adjusts itself when the first switching device SE1 and the second switching device SE2 are each in the neutral state, the third switching device SE3 in the first switching state S5 and the fourth switching device SE4 in the first switching state S6, where it is at the fourth gear EM 4 is also a winding course. In this gear stage EM 4, the drive power generated by the second drive motor 50 via the rotor shaft W4, the transmission elements Z13 and Z14 transmitted to the intermediate shaft W3, from there via the first transmission element Z9 of the intermediate shaft W3 and the first transmission element Z1 of the first transmission element level E1 via the second gear elements Z3 and Z4 of the second gear element plane E2, and from there further via the third gear elements Z6 and Z5 of the third gear element plane E3 to the fourth gear elements Z7 and Z8 of the fourth gear element plane E4 and from there to the output shaft W2. If one also adds a fifth switching device SE5 to the tenth embodiment of a drive system 70 according to the invention or a torque transmission device 60 according to the invention shown in FIG. 10a, see FIG. 11a, wherein only the first transmission element Z9 of the intermediate shaft W3 is rotationally fixed to the fourth transmission device SE4 Intermediate shaft W3 can be connected and the second gear element Z11 of the intermediate shaft W3 via the fifth switching device SE5 can be rotatably connected to the intermediate shaft, this results in two additional mechanical gear stages VKM 2 and VKM 4, see Fig. 11b, which in each case in the form of Windungsgängen allow power transmission from the drive shaft W1 via the intermediate shaft W3 to the output shaft W2.
In this case, the first, additional mechanical gear VKM 2 sets when the first switching device SE1 and the third switching device SE3 are in the neutral state, while the second switching device SE2 is in the second switching state S4 and the fourth switching device SE4 and the fifth switching device SE5 itself each in the first switching state S6 or S7 are located. In gear ratio VKM 2, the transmission of a drive power generated by the first drive motor 10 takes place starting from the drive shaft W1 via the third gear elements Z5 and Z6 of the third gear element plane E3, from there via the second gear elements Z4 and Z3 of the second gear element plane E2, from there on via the first transmission element level E1, in particular via the first transmission element Z1 of the drive shaft W1, further via the first transmission element Z9 of the intermediate shaft W3 to the intermediate shaft W3, and from there via the second transmission element Z11 of the intermediate shaft W3 to the reverse transmission element Z11X and of there to the first further transmission element Z12 of the output shaft W2 and via this to the output shaft W2.
The second additional mechanical gear stage VKM 4, in which a drive power from the first drive motor 10 via the intermediate shaft W3 are performed adjusts itself when the first switching device SE1 and the third switching device SE3 are in the neutral state and the second switching device SE2 in the first switching state S3, and the fourth switching device SE4 and the fifth switching device SE5 are each in the first switching state S6 or S7. In this case, a drive power generated by the first drive motor 10 is transmitted from the drive shaft W1 via the first transmission element Z1 of the first transmission element plane E1 and the first transmission element Z9 of the intermediate shaft W3 and further via the intermediate shaft W3 to the second transmission element Z11 of the intermediate shaft W3 and this via the reversing gear element Z11X to the first further transmission element Z12 of the output shaft W2. If the fourth gear element plane E4 and the third shift device SE3 are omitted, the gear ratios VKM 7, VKM 8 and EM 4, s are omitted in this case. Fig. 11b.
Of course, a variety of modifications, in particular of structural modifications possible without departing from the content of the claims.
Reference numeral list 10 first drive motor (internal combustion engine) 20 dual mass flywheel 30 free-running 40 differential gear 50 second drive motor (electric motor and electric motor operated as generator) 60 torque transmission device 70 according to the invention drive system E1 first gear element level E2 second gear element level E3 third gear element plane E4 fourth gear element level EM x x-th gear ratio in which a drive power generated by the second drive motor is transferable to the output shaft L x gear stage in which loading in the state with the x-th translation is possible SE1 first switching device SE2 second switching device SE3 third switching device SE4 fourth switching device SE5 fifth switching device 51 first switching state of first switching device 52 second switching state of the first switching device 53 first switching state of the second switching device 54 second switching state of the second switch first switching state of the third switching device 56 first switching state of the fourth switching device 57 second switching state of the fourth switching device or first switching state of the fifth switching device VKM x.sup.th gear stage in which a drive power generated by the second drive motor can be transmitted to the output shaft W1 drive shaft W2 output shaft W3 Intermediate shaft W4 Rotor shaft W5 Differential shaft W6 Reversing shaft Z1 First transmission element of the drive shaft Z2 First transmission element of the output shaft Z3 Second transmission element of the drive shaft Z4 Second transmission element of the output shaft Z5 Third transmission element of the drive shaft Z6 Third transmission element of the output shaft Z7 Fourth transmission element of the drive shaft Z8 Fourth transmission element of the output shaft Z9 First transmission element the intermediate shaft Z11 second gear element of the intermediate shaft Z11x reverse gear element Z12 first, further transmission element of the output shaft Z13 transmission element of the rotor shaft Z14 further transmission element of the intermediate shaft Z15 second, further transmission element of the output shaft Z16 transmission element of the differential shaft

权利要求:
Claims (30)
[1]
claims
1. A torque transmission device (60), in particular for a motor vehicle with hybrid drive, wherein the torque transmission device (60) comprises: a drive shaft (W1), an output shaft (W2) and an intermediate shaft (W3), wherein the drive shaft (W1) at least a first transmission element (Z1), a second transmission element (Z3) and a third transmission element (Z5), wherein the output shaft (W2) at least a first transmission element (Z2), a second transmission element (Z4) and a third transmission element (Z6), wherein the first gear elements (Z1, Z2), the second gear elements (Z3, Z4) and the third gear elements (Z5, Z6) of the drive shaft (W1) and the output shaft (W2) are respectively engaged with each other and each in a common first (E1) , Second (E2) and third gear element plane (E3) are arranged, wherein the transmission elements (Z1, Z3, Z5) of the drive shaft (W1) are each designed as a loose wheel and by means of a Schalteinrichtu ng (SE1, SE2) with the drive shaft (W1) are drehverbindbar, wherein the transmission elements (Z2, Z4, Z6) of the output shaft (W2) are each designed as idler gear and by means of a switching device (SE1, SE2) with the output shaft (W2) are rotatably connected, wherein the intermediate shaft (W3) at least a first gear element (Z9) which is designed as a loose wheel and with the intermediate shaft (W3) by means of a switching device (SE4) is drehverbindbar, and wherein the at least one first transmission element (Z9) of Intermediate shaft (W3) with a transmission element (Z1, Z2, Z3, Z4, Z5, Z6) of the first gear element plane (E1), the second gear element plane (E2) or the third gear element plane (E3) is engaged.
[2]
2. torque transmission device according to claim 1, wherein the torque transmission device (60) has a first, between the first gear element plane (E1) and the second gear element plane (E2) arranged switching device (SE1) and preferably a second, between the second gear element plane (E2) and the Third gear element level (E3) arranged switching device (SE2).
[3]
3. torque transmission device (60) according to claim 1 or 2, wherein the drive shaft (W1) and the output shaft (W2) each additionally a fourth, each designed as a loose gear element (Z7, Z8), which are engaged with each other and in a common , Fourth gear element plane (E4) are arranged.
[4]
4. torque transmission device (60) according to claim 3, wherein the torque transmission device (60) has a third, preferably in addition to, in particular adjacent to the fourth gear element plane (E4) arranged switching device (SE3).
[5]
5. torque transmission device according to one of claims 1 to 4, wherein by means of the first switching device (SE1) alternatively the first transmission element (Z1) or the second transmission element (Z3) and the third transmission element (Z5) of the drive shaft (W1) with the drive shaft (W1 ), wherein preferably in a first switching state (S1) of the first switching device (SE1), the first transmission element (Z1) of the drive shaft (W1) to the drive shaft (W1) is rotatably connected and in a second switching state (S2), the second transmission element (Z3) and the third transmission element (Z5) of the drive shaft (W1) to the drive shaft (W1) are rotatably connected, and wherein in particular in a neutral state none of the three transmission elements (Z1, Z3, Z5) of the drive shaft (W1) with the drive shaft (W1) is rotatably connected.
[6]
6. torque transmission device according to one of claims 1 to 5, wherein by means of the second switching device (SE2) alternatively the first transmission element (Z2) and the second transmission element (Z4) or the third transmission element (Z6) of the output shaft (W2) with the output shaft (W2 ) are drehverbindbar, wherein preferably in a first switching state (S3) of the second switching device (SE2), the first transmission element (Z2) and the second transmission element (Z4) of the output shaft (W2) with the output shaft (W2) rotatably connected and in a second Switching state (S4), the third transmission element (Z6) of the output shaft (W2) with the output shaft (W2) rotatably connected, and wherein in particular in a neutral state none of the three transmission elements (Z2, Z4, Z6) with the output shaft (W2) rotatably connected is.
[7]
7. torque transmission device (60) according to one of claims 1 to 6, wherein the second transmission element (Z3) of the drive shaft (W1) and the third transmission element (Z5) of the drive shaft (W1) rotatably connected to each other, in particular by means of a common, concentric outside the hollow shaft arranged around the drive shaft (W1), and preferably wherein the first gear element (Z2) of the output shaft (W2) and the second gear element (Z4) of the output shaft (W2) are connected to each other, in particular by means of a common, concentric outside around the Output shaft (W2) arranged around hollow shaft.
[8]
8. torque transmission device (60) according to claim 3, in particular according to at least one of claims 5 to 7 in conjunction with claim 3, wherein the fourth gear element (Z8) of the output shaft (W2) rotates with the third gear element (Z6) of the output shaft (W2) is connected, in particular by means of a common, concentrically around the output shaft (W2) arranged around the outside hollow shaft.
[9]
9. torque transmission device (60) according to claim 4, in particular according to at least one of claims 5 to 8 in conjunction with claim 4, wherein the fourth gear element (Z7) of the drive shaft (W1) by means of the third switching device (SE3) with the drive shaft (W1) is drehverbindbar, preferably in a first switching state (S5) of the third switching device (SE3), the fourth transmission element (Z7) of the drive shaft (W1) with the drive shaft (W1) rotatably connected and in particular in a neutral state, the fourth transmission element (ZI) with the drive shaft (W1) is not rotationally connected.
[10]
10. torque transmission device (60) according to one of claims 1 to 4, wherein by means of the first switching device (SE1) alternatively the first transmission element (Z2) or the second transmission element (Z4) and the third transmission element (Z6) of the output shaft (W2) with the Output shaft (W2) are drehverbindbar, preferably in a first switching state (S1) of the first switching device (SE1), the first transmission element (Z2) of the output shaft (W2) with the output shaft (W2) rotatably connected and in a second switching state (S2) the second transmission element (Z4) and the third transmission element (Z6) of the output shaft (W2) are connected in rotation with the output shaft (W2), and in particular in a neutral state none of the three transmission elements (Z2, Z4, Z6) of the output shaft (W2) with the output shaft (W2) rotatably connected.
[11]
11. The torque transmission device (60) according to any one of claims 1 to 4 or claim 10, wherein by means of the second switching device (SE2) alternatively the first transmission element (Z1) and the second transmission element (Z3) or the third transmission element (Z5) of the drive shaft ( W1) are rotatably connectable to the drive shaft (W1), preferably in a first switching state (S3) of the second switching device (SE2) the first transmission element (Z1) and the second transmission element (Z3) of the drive shaft (W1) with the drive shaft (W1) are rotatably connected and in a second switching state (S4) the third transmission element (Z5) of the drive shaft (W1) with the drive shaft (W1) is rotatably connected, and wherein in particular in a neutral state none of the three transmission elements (Z1, Z2, Z5) the drive shaft (W1) is rotatably connected.
[12]
12. torque transmission device (60) according to claim 3, in particular according to claim 10 in conjunction with claim 3 and / or 4 or claim 11 in conjunction with claim 3 and / or 4, wherein the first gear element (Z1) of the drive shaft (W1) and the second transmission element (Z3) of the drive shaft (W1) are connected to each other in a rotationally fixed manner, in particular by means of a common hollow shaft arranged concentrically outside the drive shaft (W1), and preferably the second transmission element (Z4) of the output shaft (W2) and the third Transmission element (Z6) of the output shaft (W2) are rotatably connected to each other, in particular by means of a common, concentric outside around the output shaft (W2) arranged around the hollow shaft.
[13]
13. torque transmission device (60) according to claim 4, in particular or according to at least one of claims 10 to 12 in conjunction with claim 4, wherein the fourth gear element (Z8) of the output shaft (W2) by means of the third switching device (SE3) with the output shaft (W2 ), wherein preferably in a first switching state (S5) of the third switching device (SE3), the fourth transmission element (Z8) of the output shaft (W2) is rotatably connected to the output shaft (W2) and in particular in a neutral state, the fourth transmission element (Z8) with the output shaft (W2) is not rotationally connected.
[14]
14. Torque transmission device (60) according to any one of claims 10 to 13, wherein the fourth gear element (Z7) of the drive shaft (W1) rotatably connected to the third transmission element (Z5) of the drive shaft (W1) is connected, in particular by means of a common, concentric to the outside the hollow shaft arranged around the drive shaft (W1).
[15]
15. A torque transmission device (60) according to any one of claims 1 to 14, wherein the output shaft (W2) at least a first further transmission element (Z12), which is preferably designed as a fixed gear and rotatably connected to the output shaft (W2).
[16]
16. A torque transmission device (60) according to claim 15, wherein the intermediate shaft (W3) has a second transmission element (Z11), wherein the second transmission element (Z11) of the intermediate shaft (W3) is preferably designed as a loose wheel and by means of a switching device (SE4, SE5) with the intermediate shaft (W3) is drehverbindbar, and wherein the second transmission element (Z11) of the intermediate shaft (W3) in particular with the first further transmission element (Z12) of the output shaft (W2) is rotatably connected.
[17]
17. A torque transmission device (60) according to claim 16, wherein the torque transmission device (60) comprises a fourth switching device (SE4), by means of which alternatively the first transmission element (Z9) of the intermediate shaft (W3) o-der the second transmission element (Z11) of the intermediate shaft ( W3) are rotatably connected to the intermediate shaft (W3), preferably in a first switching state (S6) of the fourth switching device (SE4) the first transmission element (Z9) of the intermediate shaft (W3) with the intermediate shaft (W3) is rotatably connected and in a second switching state (S7) the second transmission element (Z11), and wherein in particular in a neutral state, none of the two transmission elements (Z9, Z11) of the intermediate shaft (W3) rotatably connected to the intermediate shaft (W3) is connected.
[18]
18. A torque transmission device (60) according to claim 16, wherein the torque transmission device (60) comprises a fourth shift device (SE4) and a fifth shift device, wherein the first transmission element (Z9) of the intermediate shaft (W3) by means of the fourth switching device (SE4) with the intermediate shaft (W3) is rotatably connected and the second transmission element (Z11) of the intermediate shaft (W3) by means of the fifth switching device (SE5), preferably in a first switching state (S6) of the fourth switching device (SE4), the first transmission element (Z9) of the intermediate shaft (Z9) W3) is rotatably connected to the intermediate shaft (W3) and in particular in a neutral state of the fourth switching device (SE4), the first transmission element (Z9) of the intermediate shaft (W3) is not rotatably connected to the intermediate shaft (W3), and preferably in a first Switching state (S7) of the fifth switching device (SE5), the second transmission element (Z11) of the intermediate shaft (W3) rotatably with the intermediate shaft (W3) is connected and in particular in a neutral state of the fifth switching device (SE5) the second transmission element (Z11) of the intermediate shaft (W3) is not rotatably connected to the intermediate shaft (W3).
[19]
19. A torque transmission device (60) according to any one of claims 16 to 18, wherein the second transmission element (Z11) of the intermediate shaft (W3) directly with the first further transmission element (Z12) of the output shaft (W2) is engaged or via a reverse shaft (W6) with a preferably formed as a fixed gear element (Z11X) with the first further transmission element (Z12) of the output shaft (W2) is rotatably connected, wherein the transmission element (Z11X) of the reversing shaft (W6) in particular on the one hand with the second transmission element (Z11) of the intermediate shaft (W3 ) is engaged and on the other hand with the first further transmission element (Z12) of the output shaft (W2).
[20]
20. A torque transmission device (60) according to any one of claims 16 to 19, wherein the first transmission element (Z9) of the intermediate shaft (W3) is rotatably connected to a transmission element (Z2, Z4, Z6, Z8) of the output shaft (W2), wherein the first transmission element (Z9) of the intermediate shaft (W3) preferably directly with a transmission element (Z2, Z4, Z6, Z8) of the output shaft (W2) is engaged.
[21]
The torque transmission device (60) according to any one of claims 16 to 20 in any one of claims 5 to 9, wherein the first transmission element (Z9) of the intermediate shaft (W3) is engaged with the first transmission element (Z2) of the output shaft (W2) ,
[22]
22. A torque transmission device (60) according to any one of claims 16 to 20 in conjunction with one of claims 10 to 14, wherein the first gear element (Z9) of the intermediate shaft (W3) with the third gear element (Z6) of the output shaft (W2) is engaged ,
[23]
23. A torque transmission device (60) according to any one of claims 16 to 19, wherein the first gear element (Z9) of the intermediate shaft (W3) with a transmission element (Z1, Z3, Z5, Z7) of the drive shaft (W1) is engaged.
[24]
24. A torque transmission device (60) according to any one of claims 16 to 19 in conjunction with at least one of claims 5 to 9, wherein the first gear element (Z9) of the intermediate shaft (W3) with the second transmission element (Z3) of the drive shaft (W1) in engagement is.
[25]
25. A torque transmission device (60) according to any one of claims 16 to 19 in any one of claims 10 to 14, wherein the first gear element (Z9) of the intermediate shaft (W3) with the first transmission element (Z1) of the drive shaft (W1) is engaged ,
[26]
26 drive system (70), in particular for a motor vehicle with hybrid drive, wherein the drive system at least a first drive motor (10), preferably an internal combustion engine (10), a second drive motor (50), preferably an electric machine (50), in particular one Electric motor and / or generator operable electric machine (50), at least one drivable axle and arranged in the power flow direction between the first drive motor (10) and the drivable axle torque transmission device (60), characterized in that the torque transmission device (60) according to one of Claims 1 to 25 is formed, wherein the drive shaft (W1) of the torque transmission device (60) with the first drive motor (10) is rotatably connected or drehverbindbar, wherein the intermediate shaft (W3) with the second drive motor (50) rotatably connected or drehverbindbar, and wherein the output shaft (W2) with the drivable Ac habe is rotatably connected or drehverbindbar.
[27]
27. Drive system (70) according to claim 26, wherein the drive system (70) and / or the torque transmission device (60) comprises a dual-mass flywheel (20) for improving the running smoothness and / or a freewheel (30) for decoupling the first drive motor from the torque transmission device (70). 60), preferably a switchable freewheel (30), wherein the drive shaft (W1) of the torque transmitting device (60) via the dual mass flywheel (20) and / or the freewheel (30) to the first drive motor (10) is rotatably connected or drehverbindbar, wherein the dual-mass flywheel (20) and / or the freewheel (30) is arranged in particular in the power flow direction between the first drive motor (10) and the first transmission element (Z1) of the drive shaft (W1).
[28]
28. Drive system (70) according to claim 26 or 27, wherein the intermediate shaft (W3) has a further gear element (Z14), which is preferably designed as a fixed gear and rotationally fixed to the intermediate shaft (W3) is connected, wherein the second drive motor (50) preferably via the further transmission element (Z14) of the intermediate shaft (W3) with the intermediate shaft (50) rotatably connected or drehverbindbar, in particular via a with the second drive motor (50) rotatably connected or drehverbindbare rotor shaft (W4) with a preferably designed as a fixed gear element (Z13 ) engaged with the further gear element (Z14) of the intermediate shaft (W3).
[29]
29, drive system (70) according to any one of claims 26 to 28, wherein the output shaft (W2) has a second, further transmission element (Z15), which is preferably designed as a fixed gear and rotatably connected to the output shaft (W2), wherein the output shaft (W2) preferably via the second, further transmission element (Z15) rotatably connected to the drivable axle or drehverbindbar, in particular via a differential gear (40) which is rotatably connected to a differential shaft (W5), wherein the differential shaft (W5) preferably as a fixed gear formed transmission element (Z16) which is with the second, further transmission element (Z15) of the output shaft (W2) is engaged.
[30]
30. A motor vehicle having a drive system with a torque transmission device, characterized in that the motor vehicle has a drive system which is designed according to one of claims 26 to 29 and has a torque transmission device which is designed according to one of claims 1 to 25.

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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DE102016221095.5A|DE102016221095A1|2016-10-26|2016-10-26|Torque transmission device, drive system and motor vehicle|

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