• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a switching device (30) for at least one clutch (C0, C1, C5) or brake (B0) of a transmission (10), in particular an automatic transmission or a dual-clutch transmission, of a vehicle, with at least one about a first axis of rotation (31a ) rotatably mounted first shift drum (31) with at least one first button (314, 315, 316) for a first guide element (41, 51, 61) - with respect to the first axis of rotation (31a) - axially displaceably mounted or pivotally mounted shift fork (40 , 50, 60), and a second shift drum (32) rotatably mounted about a second rotation axis (32a) with at least one second button (324, 325, 326) for a second guide member (42, 52, 62), the first shift drum (31) by a first actuator motor (33) and the second shift drum (32) by a second actuator motor (34) is rotatable. In order to enable efficient operation and high driving comfort with simple production, it is provided that the first guide element (41, 51, 61) and the second guide element (42, 52, 62) of the same shift fork (40, 50, 60) assigned and from each other spaced apart, wherein in each shift position of the shift fork (40, 50, 60) at least the first or second guide element (41, 42; 51, 52; 61, 62) the corresponding button (314, 324; 315, 325; 326) contacted.
    公开号:AT520187A4
    申请号:T50820/2017
    申请日:2017-09-26
    公开日:2019-02-15
    发明作者:Davydov Vitaly；Gratzl Oliver-René
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a switching device for at least one clutch or at least one brake of a transmission, in particular an automated manual transmission or a double clutch transmission, of a vehicle with at least one first shift drum rotatably mounted about a first axis of rotation with at least one first button for a first guide element the first axis of rotation - axially displaceable or rotatably mounted shift fork, and a second shift drum rotatably mounted about a second axis of rotation with at least one second button for a second guide element, the first shift drum being rotatable by a first actuator and the second shift drum being rotatable by a second actuator.
    An automated manual transmission is a manual manual transmission that is expanded to include automated shift components. The basic difference to a manual gearbox is that the gear change is not carried out directly by the driver, but by electrical or hydraulic actuators (actuator motors). During the gear change, the actuated clutch actuator disconnects the tractive force, then the gear change logic stored in the gearbox control unit forwards the calculated gear change to the gear shift actuator of the gearbox, and the gearbox shifts to the next higher or lower gear.
    WO 2013/160156 A1 proposes a hybrid transmission with a main shaft with a shift drum, the main shaft being actuated by an actuator and having at least one shift gate. The driver of a shift fork engages in the shifting link, which axially moves a rotatable sliding sleeve with claw teeth or a synchronizing unit. A similar actuator system is described in US 9,163,723 B2.
    No. 7,428,852 B2 discloses an actuator mechanism for performing gear change processes in a motor vehicle, which has a first and a second actuator drum, which are rotatably mounted. The shift finger of a first shift fork engages in a shift gate of the first shift drum and the shift finger of a second shift fork engages in the shift gate of the second shift drum, each shift fork acting on a gear change element. A similar actuator mechanism is known from US 7,487,691 B2.
    / 47
    The object of the invention is to develop a shifting device for a transmission, in particular an automated one, which enables efficient operation with a variety of shifting possibilities, is inexpensive to manufacture and enables high driving comfort.
    Starting from a switching device of the type mentioned at the outset, this object is achieved in that the first and second guide elements are assigned to the same shift fork and are spaced apart from one another, preferably on this shift fork, with at least one guide element contacting the corresponding button in each shift position of the shift fork.
    The shift fork is thus controlled in parallel by both the first button and the second button, the second button being able to “override the first button. This means that a specific position of the corresponding clutch or brake is only possible if both shift drums are rotated into their corresponding activation positions by the corresponding actuators.
    According to an embodiment variant of the invention, the shift fork can be pivoted about one geometric pivot axis via one or more bearings in the direction of the axes of rotation of the shift drums, which pivot axis is arranged skewed with respect to the axes of rotation of the shift drum, for example in a normal plane to the axes of rotation of the shift drum. The lever arm of the shift fork can thus be pivoted essentially parallel to the axes of rotation of the shift drums. In at least one pivot position of the shift fork, the pivot axis and at least one contact area between a guide element and the corresponding button advantageously lie on the axes of rotation of the shift drums in a normal plane.
    A further embodiment variant of the invention provides that the shift fork is mounted displaceably in the direction of the axes of rotation of the shift drums via at least one bearing designed as a guide sleeve.
    The shift drum is preferably essentially cylindrical, wherein a deflection of the shift fork can be achieved in a simple manner if at least one first button and / or at least one second button is formed by a shift gate. A simple manufacture of the button / 47 can be achieved if the shifting gate is formed by a groove formed in a lateral surface of the first shift drum or second shift drum.
    It is particularly space-saving if at least one end face of the shift drum has at least one button. An advantageous embodiment variant of the invention provides that the buttons of the at least one first button and / or at least one second button are formed by a switching cam, the switching cam preferably being arranged on an end face of the first switching drum or second switching drum. However, it is also possible to arrange the switching cam in the area of the lateral surface and to form it as a quasi “groove open on one side.
    In order to ensure that at least one guide element always rests on the corresponding button, it is provided in one embodiment variant of the invention that the shift fork is biased in the direction of the first and / or second button by a contact force, preferably formed by a return spring.
    The first shift drum serves to axially shift the shift fork between an activation position and a deactivation position, and the second shift drum serves to block or release the movement of the shift fork into the activation position. An activation position is a position of the shift fork in which it assumes its maximum deflection in the direction of a pressing force. Any other position of the shift fork is referred to here as the “deactivation position. The term "activation" here refers exclusively to the ability of the shift fork to assume its maximum deflection in the direction of the contact pressure. This deflection enables a specific operating position - either an open position or a closed position - of a brake or clutch to be achieved.
    In order to be able to deflect the shift fork axially and with minimal effort against the contact pressure, it is advantageous if the first button, viewed in a jacket development of the first shift drum, has at least one first ramp section, which is preferably at a defined first angle between 0 ° and 30 ° - Is inclined to a normal plane on the first axis of rotation.
    / 47
    In an advantageous embodiment of the invention it is provided that the first button - viewed in a jacket development of the first shift drum - has at least one primary activation section which is associated with a maximum deflection of the shift fork in the direction of the pressing force. The primary activation section can be arranged, for example, between the first ramp section and the second ramp section. If one considers the ramp sections as mathematical curves or functions, the primary activation section is formed by a local minimum (or maximum). The primary activation section can be formed by the intersection between the first and second ramp sections. In another embodiment of the invention it can be provided that the primary activation section is configured normal to the first axis of rotation of the first shift drum and connects to at least one ramp section.
    In one embodiment variant of the invention it is provided that the second button has at least one second holding section which is formed parallel to a normal plane on the first axis of rotation.
    Furthermore, the second button has at least one secondary activation section, which is preferably formed by a step and / or depression - in relation to the second holding section. The secondary activation section can connect seamlessly to the second holding section in the second shift drum - that is to say without any ramp sections.
    The first and the second shift drum are advantageously arranged next to one another and spaced apart from one another, the axes of rotation being formed parallel to one another. This allows a compact arrangement of the switching device.
    In one embodiment of the invention, the first guide element and the second guide element are connected to one another via a coupling region which is fixedly connected to the shift fork. The coupling area can also be formed in one piece with the shift fork.
    Each guide element can be formed, for example, by a switching roller or by a switching pin or the like.
    / 47
    It is particularly space-saving if the first and second shift drums act on the first and second guide elements of a plurality of shift forks. Thus, the first switching drum can have a plurality of first buttons and the second button can have a plurality of second buttons in the area of the first or second lateral surface and / or in the area of the end faces, which are formed as switching lanes or switching cams.
    The invention is explained in more detail below on the basis of the embodiment variants shown in the non-limiting figures.
    In it show schematically
    1 is an automated transmission for the application of the switching device according to the invention without shift drums,
    2 shows the transmission together with the switching device according to the invention in an oblique view,
    3 shows a switching device according to the invention in an oblique view,
    4 shows a first shift drum of the shifting device in an oblique view of a first end face,
    5 shows the first shift drum of the shifting device in an oblique view on a second end face,
    6 shows a second shift drum of the shifting device in an oblique view of a first end face,
    7 shows the second shift drum of the shifting device in an oblique view of a second end face,
    8 the first shift drum in a development of the lateral surface,
    9 the second shift drum in a development of the lateral surface,
    10 shows the switching device with a first shift fork in an oblique view, / 47
    11 shows a switching principle of the switching device for the first shift fork in a first shift position of the shift drums,
    12 shows a switching principle of the switching device for the first shift fork in a second shift position of the shift drums,
    13 shows a switching principle of the switching device for the first shift fork in a third shift position of the shift drums,
    14 shows a switching principle of the switching device for the first shift fork in a fourth shift position of the shift drums,
    15 shows a switching principle of the switching device for the first shift fork in a fifth shift position of the shift drums,
    16 shows the switching device with a second shift fork in an oblique view,
    17 shows a switching principle of the switching device for the second shift fork in a sixth switching position of the shift drums,
    18 shows the detail XVIII of the switching principle of the switching device shown in FIG. 17,
    Fig. 19, the switching device with a third shift fork in an oblique view and
    20 shows a switching principle of the switching device for the third shift fork in a seventh shift position of the shift drums.
    1 shows an automated transmission 10 for a motor vehicle. The transmission 10 embodied as a hybrid transmission comprises a housing H, an input shaft 11, which is connected to a drive machine 12 (for example an internal combustion engine), a first drive shaft 13 and a second drive shaft 14 Input shaft 11 leads through the two drive shafts 13 and 14, which are designed as hollow shafts. A planetary gear set 15 is arranged opposite the drive machine 12. The transmission 10 has an electrical machine 16 with a rotor 16a and a stator 16b. The / 47 electrical machine 16 can be designed, for example, as a multi-phase induction machine with a short-circuit rotor, the windings of the stator 16b being connected to a bidirectional inverter 17 and a battery 18 by means of a fixed electrical line. The battery 18 can be designed both as a variant with low voltage 12 V - 48 V and as a variant with high voltage greater than 48 V.
    The inverter 17 can be designed for a power of approximately 3% of a nominal power of the drive machine 12. The electrical machine 16 can also be designed as a hysteresis synchronous motor. Both the induction machine and the hysteresis motor allow high internal power dissipation with reduced influence on the stator current in braking mode. The planetary gear set 15 consists of three links 21, 22, and 23, the first link 21 being connected to the input shaft 11. The second link 22 is connected to the second drive shaft 14. The third link 23 is kinematically connected to the electrical machine 16, which is arranged coaxially and in the same plane as the planetary gear set 15. A translation between the second link 22 and the third link 23 is negative when the first link 21 is stationary. In the exemplary embodiment shown, the first link 21 is a planet carrier, the second link 22 is a first sun gear and the third link 23 is a second sun gear.
    The transmission 10 comprises six forward gears G1, G2, G3, G4, G5, G6, two reverse gears R1, R2, a switchable friction clutch C0, five clutches C1, C2, C3, C4, C5 with shift sleeves 56, 66, 76 (only the Shift sleeves of clutches C1, C4, C5 are provided with reference numerals) and a brake B0. The brake B0 and the switchable friction clutch C0 are designed as a combined friction clutch brake element B0_C0 and can be actuated via a common shift sleeve 46 by a first shift fork 40 of the shifting device 30.
    Reference number 29 denotes a vibration damper on the input shaft 11.
    As can be seen in FIG. 1, on the first drive shaft 13 there is the driving gear G35a for the third gear and for the fifth gear, which meshes with the driven gear G3b, which is located on the first intermediate shaft 24, meshes with the other it with the driven gear / 47
    G5b, which is located on the second intermediate shaft 25. The driving gears G12Ra and G46a for the first gear, the second gear and the reverse gear or for the fourth gear and the sixth gear are located on the second drive shaft 14. The gear wheel G12Ra meshes with the driven gear wheel G12b, which is located on the second intermediate shaft 25. The driven gear G12b also meshes with the driven gear GRb, which is located on the first intermediate shaft 24. The gear G46a meshes with the driven gear G46b, which is located on the second intermediate shaft 25. The gears G12b, G3b, G46a, G5b and GRb are switchably connected to the respective shafts 14, 24 and 25 by the couplings C2, C3, C4 and C5 and transmit the power from the shafts 13 and 14 to the shafts 24 and 25 different gear ratios.
    The transmission 10 thus has a switchable friction clutch C0, which connects the input shaft 11 to the first drive shaft 13, and a controllable brake B0, which blocks the rotation of the input shaft 11 relative to the housing H. A controllable locking clutch C1 is located in all versions between the driving wheels of the drive shafts 13 and 14 and connects those drive shafts 13 and 14 to one another. The controllable lock-up clutch C1 is, for example, a synchronization unit. A gear wheel 26 of a differential 27 meshes with a pinion 24a of the intermediate shaft 24 and with a pinion 25a of the intermediate shaft 25. Driven members 27a and 27b of the differential 27 are connected to output shafts 28a and 28b of the hybrid transmission 10. An axis of the gear 26 can be arranged parallel or not parallel to an axis of the input shaft 11. The teeth of the pinion 24a, 25a and the gear 26 can be designed as spur or bevel gear teeth.
    2 shows the transmission 10 in an oblique view, a switching device 30 being provided in order to control the switchable friction clutch C0 and the switchable brake B0, which cannot be seen in FIG. 2.
    FIG. 3 shows the switching device 30 separately, that is to say without the remaining parts of the transmission 10. The switching device 30 has a first shift drum 31 and a second shift drum 32. The first shift drum 31 can be rotated about a first axis of rotation 31a by a first actuator motor 33 and the second shift drum 32 can be rotated about a second axis of rotation 34a by a second actuator motor 34/47, the first axis of rotation 31a and second axis of rotation 32a being spaced apart and parallel to one another, and are arranged parallel to the input shaft 11 of the transmission 10. The actuator motors 33, 34 each act on the shift drums 31, 32 via a transmission stage 33a, 34a and a sprocket 33b, 34b fixed to the rollers and effect defined angular adjustment of the shift drums 31, 32. The first shift drum 31 has a plurality of first buttons 314, 315, 316 (FIGS. 4 and 5) and the second shift drum 32 a plurality of second buttons 324, 325, 326 (FIGS. 6 and 7) for guiding a guide element 41, 42; 51, 52; 61, 62 of shift fork 40, 50, 60 on. The guide elements 41, 41, 51, 52, 61, 62 can be formed by guide rollers, guide pins or sliding blocks, these being in the contact area with the corresponding button 314, 324; 315, 325; 316, 326 can be cylindrical or spherical. The buttons 314, 315, 316; 324, 325, 326 can by switching cams 37, 38 on the end faces 31b, 31c; 32b, 32c of the shift drums 31, 32 or by in the lateral surfaces 31d; 32d of the shift drums 31, 32 formed shift gates 35, 36 may be formed. Switching lanes 35, 36 are understood to mean grooves formed in the lateral surface 31d, 32d of the first switching drum 31 or second switching drum 32 with side surfaces forming opposite switching surfaces, which have a precisely defined course in the circumferential direction and axial direction. A switching cam is understood here to mean a one-sided molded surface, in particular on an end face of a switching drum, which forms a button for a guide element.
    The buttons 314, 315, 316; 324, 325, 326 and guide elements 41, 42; 51, 52; 61, 62 are used for the axial deflection of shift forks 40, 50, 60, via which shaft clutches C0, C1, C5 and / or shaft brakes B0 can be switched - that is, activated (i.e. closed, for example) or deactivated (e.g., opened) , As can be seen from FIG. 3, the two shift drums 31, 32 can be used to shift or deflect a plurality of shift forks 40, 50, 60 with respect to the axes of rotation 31a, 32a of the shift drums 31, 32 in the axial direction. The shift fork 70 is only engaged via the guide element 71 with the shift gate 36 of the second shift drum 32 - for example for actuating the clutch C2 - and is only explained and shown here in passing. The shift forks 40, 50, 60 each have a first guide element 41, 51, 61 and a second guide element 42, 52, 62, which are firmly connected to one another via a coupling area 43, 53, 63 of the respective shift fork 40, 50, 60. Each / 47 of the shift forks 40, 50, 60 is assigned a first button 314, 315, 316, 317 on the first shift drum 31 and a second button 314, 315, 316 on the second shift drum 32, each shift fork 40, 50, 60 interacts with the first button 314, 315, 316 via the first guide element 41, 51, 61 and with the second button 314, 315, 316 via the second guide element 42, 52, 62. Each shift fork 40, 50, 60 is pretensioned in the direction of the respective first button or second button by a contact pressure 47a, 57a, 67a, for example formed by a return spring 47, 57, 67, so that at least one first guide element 41, 51, 61 or second guide element 42, 52, 62 always rests on the corresponding first button 314, 315, 316 or second button 324, 325, 326.
    FIGS. 8 and 9 show cylinder developments of the lateral surfaces 31d, 32d of the first shift drum 31 and of the second shift drum 32.
    As can be seen, in the exemplary embodiment the first shift drum 31 has a first shift gate 310 with a plurality of first buttons 314, 315, 316. To the right of the first buttons, the organ to be actuated, that is to say the combined friction clutch / brake element B0_C0, clutch C3 or clutches C1, C5, is shown in FIG. 8. The first button 314 for the first guide element 41 of the first shift fork 40 is arranged on a first end face 31b of the first shift drum 31 and is formed by a shift cam which is profiled axially, ie in the direction of the axis of rotation 31a. The first button 315 for the first guide element 51 of the second shift fork 50 is arranged on a second end face 31c of the first shift drum 31 facing away from the first end face 31b and is likewise formed by a shift cam which is profiled axially - ie in the direction of the axis of rotation 31a. This first button 315 also forms the first button 316 for the third shift fork 60.
    The first button 314 for the first guide element 41 of the first shift fork 40 has first ramp sections 314a and second ramp sections 314b, the first ramp sections 314a at a first angle α of approximately 30 ° and the second ramp sections 314b at a second angle β of approximately - 30 ° with respect to a normal plane ε are inclined to the axis of rotation 31a. The ramp sections 314a, 314b serve to axially deflect the first shift fork 40 via the first guide element / 47 when the first control roller 31 rotates, or counter to the pressing force 47a. The contact pressure 47a is generated by a return spring 47 formed, for example, by a plate spring. In the intersection area S of the first ramp section 314a and the second ramp section 314b, a primary activation section 314c is formed, which is assigned to a maximum deflection of the first shift fork 40 in the direction of the pressing force 43a. Furthermore, the first button points
    314 has at least one holding section 314d which is formed parallel to the normal plane ε on the first axis of rotation 31a, the holding section 314d being arranged here between a first ramp section 314a and a second ramp section 314b.
    The first button 315 or 316 for the first guide element 51 or 61 of the second shift fork 40 or 50 also has a first ramp section 315a which is at a first angle γ of approximately 30 ° with respect to a normal plane ε on the axis of rotation 31a is inclined. The first button
    315 or 316 has at least one holding section 315d or 316d, which is formed parallel to the normal plane ε on the first axis of rotation 31a. Furthermore, the first button 315 or 316 has a primary activation section 315c or 316c, which is assigned to a maximum deflection of the second shift fork 50 in the direction of the pressing force 57a or 67a for actuating the clutch C1 or C5. In the example, the primary activation section 315, 316 of the first button 315, 316 of the first and second shift fork 50, 60 is arranged in a normal plane ε on the first axis of rotation 31a. The first ramp section 315a, 316a is arranged between the holding section 315d or 316d and the primary activation section 315c, 316c.
    Reference number 319 denotes a button formed by a shift gate 35 in the first lateral surface 31d of the first shift drum 31, which is used, for example, to actuate the clutch C3 in a known manner via a separate shift fork (not shown).
    The second shift drum 32 has a second shift gate 320 with a plurality of second buttons 324, 325, 326. To the right of the second buttons, the organ to be actuated, that is to say the combined friction clutch / braking element B0_C0, the clutches C4, C5, C1 or C2, is also shown here in FIG. 9. The second button 324 for the second guide element 42 of the / 47 first shift fork 40 is arranged on a first end face 33b of the second shift drum 31 and is essentially planar and parallel to the normal plane δ on the axis of rotation 32a of the second shift drum 32. The second button 324 for the second guide element 42 of the first shift fork 40 has an abrupt, step-like depression V1, which forms a secondary activation section 324c of the second button 324. The width of the depression V1 is selected such that the depression V1 can receive the second guide element 42 of the first shift fork 40 without resistance.
    The second button 325 for the second guide element 52 of the second shift fork 50 is arranged on a second end face 32c of the second shift drum 32 facing away from the first end face 32b and - except for two depressions V2, is also flat, that is, parallel to the normal plane δ on the axis of rotation 32a of the second shift drum 32, trained. This second button 325 can be arranged radially within a further button 328 (not explained here) for actuating the clutch C2 on the second end face 32c of the second shift drum 32, as is clearly shown in FIG. 6. The depressions V2 form a secondary activation section 325c of the second button 325 for the second guide element 52 of the second shift fork 50.
    The second button 326 for the second guide element 52 of the third shift fork 60 is arranged on the jacket of the second shift drum 32 and is formed by a side surface of a circumferential shift gate 36, which in the exemplary embodiment extends over an angle> 360 ° about the axis of rotation 32a of the second shift drum 32 , i.e. multi-course - at least two-course - trained. The second button 326 has an abrupt step-like depression V3 which is formed essentially parallel to the axis of rotation 32a of the second shift drum 32 and which forms a secondary activation section 326c of the second button 326 for the second guide element 62 of the third shift fork 60.
    Shift lanes 35, 36 in the lateral surfaces 31d, 32d have the advantage that both side surfaces of each shift lane 35, 36 can be used as buttons, so that two clutches or brakes on the same shift lane 35; 36 can be controlled.
    The shift positions of the first shift drum 31 and the second shift drum 32 are entered in FIG. 8 and in FIG. 9. The first shift drum 31 has / 47 the shift positions S31 1 to 8, the shift position 3 corresponding, for example, to the primary activation section 314c of the first button 314 of the first guide element 41 of the first shift fork 40. The second shift drum 32 has the shift positions S32 1 to 7, the shift position 6, for example, corresponding to the secondary activation section 324c of the second button 324 of the second guide element 42 of the first shift fork 40.
    With the switching device 30 and the two switching drums 31, 32, which can be rotated independently of one another by the actuator motors 33, 34, a large number of different switching positions - in the present example 52
    Implement switching positions SP, as can be seen from the following switching table:
    SP S31 S32 Bo Co ci C2 C3 C4 C5 TM M12 BM 1 1 1 operating room FCL XL G3 activated, ECVT1(G2) selected Running Parallel hybrid mode 2 2 1 operating room operating room XL ECVT1 (G2) activated,G3 selected Running ECVTmode 3 3 1 operating room operating room XL ECVT1 (G2) activated,G3 selected Running ECVTmode 4 4 1 operating room operating room L ECVT1 (G2) activated, oil pump not driven Running ECVTmode 5 5 1 operating room PCL L ECVT1 (G2) activated,Oil pump powered by 12 Running ECVTmode 6 6 1 operating room operating room L ECVT1 (G2) activated, oil pump not driven Running ECVTmode 7 7 1 operating room operating room X L ECVT1 (G2) activated,G1 selected Running ECVTmode 8th 8th 1 operating room FCL X L G1 activated, ECVT1(G2) selected Running Parallel hybrid mode 9 1 2 operating room FCL X G3 activated Running Neutral/Synchronisi
    / 47
    the shaft speeds 10 2 2 operating room operating room X G3 selected Running Neutral 11 3 2 operating room operating room X G3 selected Running Neutral 12 4 2 operating room operating roomNeutral Running Neutral 13 5 2 operating room PCLNeutral Running Neutral 14 6 2 operating room operating roomNeutral Running Neutral 15 7 2 operating room operating room X Neutral Running Neutral 16 8th 2 operating room FCL X Neutral with direct connection between 12 and engine brake 16 Running / starting / stopping tempering /load 17 1 3 operating room FCLX X G3 activated, ECVT2 (G6) preselected Running Parallel hybrid mode 18 2 3 operating room operating roomX X ECVT2 (G6) activated,G3 selected Running ECVT mode 19 3 3 operating room operating roomX X ECVT2 (G6) activated,G3 selected Running ECVT mode 20 4 3 operating room operating roomX ECVT2 (G6) activated, oil pump not driven Running ECVT mode 21 5 3 operating room PCLX ECVT2 (G6) activated,Oil pump powered by 12 Running ECVT mode 22 6 3 operating room operating roomX ECVT2 (G6) activated, oil pump not driven Running ECVT mode 23 7 3 operating room operating room X X ECVT2 (G6) activated,G4 selected Running ECVT mode 24 8th 3 operating room FCL X X G4 activated, ECVT2(G6) selected Running Parallel hybrid mode
    / 47
    25 1 4 operating room FCLX X G3 activated, ECVT2(G6) selected Running Parallel hybrid mode 26 2 4 operating room operating roomX X ECVT2 (G6) activated,G3 selected Running ECVT mode 27 3 4 operating room operating roomX X ECVT2 (G6) activated,G3 selected Running ECVT mode 28 4 4 operating room operating roomX ECVT2 (G6) activated, oil pump not driven Running ECVT mode 29 5 4 operating room PCLX ECVT2 (G6) activated, lubrication pump engine driven Running ECVT mode 30 6 4 operating room operating roomX ECVT2 (G6) activated, oil pump not driven Running ECVT mode 31 7 4 operating room operating roomX R ECVT2 (G6) activated,G5 selected Running ECVT mode 32 8th 4 operating room FCLX R G5 activated, ECVT2(G6) selected Running Parallel hybrid mode 33 1 5 operating room FCL X G3 activated Running Idling / synchronizing the shaft speeds 34 2 5 operating room operating room X G3 selected Running Neutral 35 3 5 operating room operating room X G3 selected Running Neutral 36 4 5 operating room operating roomNeutral Running Neutral 37 5 5 operating room PCLNeutral Running Neutral 38 6 5 operating room operating roomNeutral Running Neutral 39 7 5 operating room operating room X Neutral Running Neutral 40 8th 5 operating room FCL X Neutral with direct connection between 12 and engine brake 16 Running / starting / stopping tempering /load
    / 47
    41 1 6 operating room FCL X XG3 activated, ECVTR(R2) selected Running Parallel hybrid mode 42 2 6 operating room operating room X Xperformance BranchedStart of 12 with ECVTR, G3 selected tempering /Accelerate electricalDrive 43 3 6 CL operating room X XElectric mode(ECVT + G3 + B0) Stopped mechanically blocked Electric driving / braking 44 4 6 operating room operating room XECVTR (R2) activated, oil pump not driven Running ECVTmode 45 5 6 operating room PCL XECVTR (R2) activated, lubrication pump engine driven Running ECVTmode 46 6 6 operating room operating room XECVTR (R2) activated, oil pump not driven Running ECVTmode 47 7 6 operating room operating room X XECVTR (R2 activated,G5 selected Running ECVTmode 48 8th 6 operating room FCL X XG5 activated, ECVT2(G6) selected Running Parallel hybrid mode 49 1 7 operating room FCLX X XNot used 50 2 7 operating room operating roomX X X51 3 7 operating room operating roomX X X52 4 7 operating room operating roomXX53 5 7 operating room PCLXXParking, charging at a standstill Running load 54 6 7 operating room operating roomXXParking, starting at a standstill start start 55 7 7 operating room operating roomXXNot used 56 8th 7 operating room FCLXX
    The following are entered in the switching table:
    / 47
    SP Switch position of the switching device 30 S31 Switch position of the shift drum 31 S32 Switch position of the shift drum 32 bq Status of brake B0 cq Status of the friction clutch C0 C1 Status of clutch C1 C2 Status of clutch C2 C3 Status of clutch C3 C4 Status of clutch C4 C5 Status of clutch C5 TM transmission mode M12 Mode of the engine 12 BM Motor brake mode.
    In the switching table means
    operating room open CL closed FCL fully closed X operated (closed) L Shift to the left (related to Fig.1) R Shift to the right (based on Fig. 1) ECVT electronically controlled continuous operation
    In the following, the invention is described by way of example with the aid of a specific shift fork 40, 50, 60, only the shift fork 40; described in FIGS. 10, 16 and 18; 50; 60 is shown.
    10 shows the switching device 30 with a first switching fork 40
    Actuation of the friction clutch C0 which can be switched during operation. In the exemplary embodiment, the first shift fork 40 is designed as a one-armed lever (rocker arm) and is pivotably mounted about a pivot axis 44a via two bearings 44 designed as pivot points (FIG. 10). As an alternative to this, the bearings 44 can also be designed as guide sleeves in order to mount the first shift fork 40 axially displaceably in the transmission 10 via the bearings 44 parallel to the axes of rotation 31a, 32a of the shift drums 31, 32. The first shift fork 40 has two fork regions 45a, 45b, which act on a common actuating sleeve 46 of the friction clutch C0 / 47 and the brake B0, the fork regions 45a, 45b in one direction, in particular if the first shift fork 40 is designed as a lever are slidably connected to the actuating sleeve 46 transversely to the deflection direction.
    11 to 15 schematically show different shift positions for the first shift fork 40 using a shift principle of the shift device with unwound shift drums 31, 32, the coupling region 43 of the first shift fork along the first and second buttons 314, 324 being simplified and explained the shift drums that are stationary here are shifted. The pivot axis of the first shift fork 40 acting on the common shift sleeve 46 of the friction clutch C0 and the brake B0 is denoted by 44a.
    The shift position shown in FIG. 11 for the first shift fork 40 corresponds to the shift position SP = 1 of the shift table, in which the brake B0 is opened and the friction clutch C0 is completely closed. The first guide element 41 lies in the switching position 1 of the first shift drum 31 on the first ramp section 314a of the first button 314 and prevents contacting of the second guide element 42 with the second button 324 of the second shift drum 32.
    The shift position shown in FIG. 12 for the first shift fork 40 corresponds to the shift position SP = 36 of the shift table, in which both the brake B0 and the friction clutch C0 are released. The first guide element 41 lies in the switching position 4 of the first shift drum 31 on the second ramp section 314b of the first button 314 and prevents contacting of the second guide element 42 with the second button 324 of the second shift drum 32.
    The shift position shown in FIG. 13 for the first shift fork 40 corresponds to the shift position SP = 27 of the shift table, in which the brake B0 is opened and the friction clutch C0 is fully closed. The second guide element 42 lies in the switching position 4 of the second shift drum 33 on the second button 324 of the second shift drum 32 and prevents the first guide element 41 from making contact with the first button 314 of the first shift drum 31.
    / 47
    The shift position shown in FIG. 14 for the first shift fork 40 corresponds to the shift position SP = 43 of the shift table, in which the brake B0 is closed and the friction clutch C0 is open. The first shift drum 31 is in the shift position 3, the second shift drum 32 in the shift position 6. The first guide element 41 contacts the first button 314 in the region of the primary activation section 314c defined by the lowest point of the contour of the first button 314, and the second Guide element 42 is located in the secondary activation section 324c identified by the depression V1 and engages in the depression V1. This enables the greatest deflection of the first shift fork 40 in the direction of the pressing force 47a.
    The first guide element 41 lies in the switching position 3 of the first shift drum 31 on the first ramp section 314a of the first button 314 and prevents contacting of the second guide element 42 with the second button 324 of the second shift drum 32.
    FIG. 15 illustrates that the frictional clutch C0 is automatically opened by the pressing force 41a of the return spring when the first actuator motor 33 for the first shift drum 31 is deactivated, for example in the event of a fault. The force acting on the first button 314 as a result of the pressing force 47a of the return spring 47 is denoted by F, its corresponding force components normally on the first button 314 and parallel to the first button 314 by Fn and Fr. The first guide element 41 of the first shift fork 40 slides or rolls along the first ramp section 314a of the first button 314 in accordance with the force component Fr in the direction of the primary activation section 314c, the first shift drum 31 being rotated accordingly. This process is ended as soon as the second guide element 42 of the first shift fork 40 rests on the second button 324 of the second shift drum 32.
    16 shows the switching device 30 with a second shift fork 50 for actuating the clutch C1. The second shift fork 50 is mounted axially displaceably in the transmission 10 via the bearing 54 designed as a guide sleeve parallel to the axes of rotation 31a, 32a of the shift drums 31, 32. The second shift fork 50 has two fork regions 55a, 55b which act on an actuating sleeve 56 (see FIG. 1) of the clutch C1. The first / 47
    Guide element 51, which cooperates with the corresponding first button 315 in the region of the second end face 31c of the first shift drum 31, is designed here as a guide roller. A switch position is shown in which the second guide element 52 formed by a guide pin engages in the recess V2 of the second button 325 of the second shift drum 32 and thus enables the second shift fork 50 to be maximally deflected in the direction of the pressing force 57a.
    Analogously to FIGS. 11 to 15, FIG. 17 shows schematically a shift position for the second shift fork 50 using a shift principle of the shift device with unwound shift drums 31, 32 - analogously, the coupling region 53 of the second shift fork 50 being along and for simplification and explanation the corresponding first button 315 or second button 325 of the shift drums 31, 32 which are stationary here. 54 designates a bearing, designed as a guide sleeve, of the second shift fork 50 acting on the shift sleeve 56 of the clutch C1. The shift position shown in FIG. 17 for the second fork 50 corresponds, for example, to the neutral central position of the clutch opening position of the clutch C1 (see FIG. 1) and corresponds, for example, to shift position No. 31 of the shift table. The second guide element 52 lies in the switching position 3 of the second shift drum 32 on the second button 325 outside the recess V2 and prevents the first guide element 51 from contacting the first button 345 of the first shift drum 31.
    FIG. 18 shows the detail XVIII from FIG. 17, the stepped profile of the second button being clearly visible. It can also be seen that the second button 325 for the second shift fork 50 has a projecting edge area 325e on the edge of the depression V2. This prevents the corresponding second guide element 52 of the second shift fork 50 from snapping into the recess V2, the further rotation of the second shift drum 32 being blocked. In order to enable the second guide element 52 to snap into the recess V2, the first shift drum 31 must be turned back into the shift position 6, whereby the second guide element 52 of the second shift fork 50 is raised against the pressing force 53a by the second button and thus the second shift drum 32 can be rotated further until the second guide element 52 engages in the recess V2.
    / 47
    As can be seen, the second guide element 62 rests on the corresponding second button 326 formed by a shift gate, while the first guide element 61 is lifted off the corresponding first button 315 formed by a switch cam on the second end face 31c.
    19 shows the switching device 30 with a third shift fork 60 for actuating the clutch C5. The third shift fork 60 is mounted in the transmission 10 so as to be axially displaceable parallel to the axes of rotation 31a, 32a of the shift drums 31, 32 via the bearing 64 designed as a guide sleeve. The third shift fork 60 has two fork regions 65a, 65b, which act on an actuating sleeve 66 (see FIG. 1) of the clutch C5. Here too, the first guide element 61 of the third shift fork 60, which interacts with the corresponding first button 316 in the region of the second end face 31c of the first shift drum 31, is designed as a guide roller. A switch position is shown in which the second guide element 62 formed by a guide pin engages in the recess V3 of the second button 326 of the second shift drum 32 and thus enables the third shift fork 60 to be deflected to a maximum in the direction of the contact pressure 57a.
    Analogously to FIGS. 11 to 15 and to FIG. 17, FIG. 20 schematically shows a shift position for the third shift fork 60 based on a shift principle of the shift device with unwound shift drums 31, 32 - analogously, the coupling area 63 being simplified and explained the third shift fork 60 is shifted along the corresponding first button 316 or second button 326 of the shift drums 31, 32 which are stationary here. 64 designates a bearing, designed as a guide sleeve, of the third shift fork 60 acting on the shift sleeve 66 of the clutch C5. The shift position shown in FIG. 20 for the third fork 60 corresponds, for example, to the neutral central position of the clutch C5 (see FIG. 1), for example corresponds to the shift position No. 23 in the shift table. The second guide element 62 lies in the switching position 3 of the second shift drum 32 on the second button 326 outside the recess V3 and prevents contacting of the first guide element 61 of the third shift fork 60 with the first button 316 of the first shift drum 31 the second guide element 62 on the corresponding second button / 47 formed by a shift gate
    326, while the first guide element 61 is lifted off the corresponding first button 315 formed by a switching cam on the second end face 31c. The circumferential second button 326 serves as a guide both for the second guide element 62 and for the guide element 71 for the fourth shift fork 70, which controls the clutch C4, with the second guide element 62 the third shift fork 60 and the guide element 72 the fourth shift fork 70 different sections of the second button 326 can be contacted.
    权利要求:
    Claims (20)
    [1]
    P A T E N T A N S P R Ü C H E
    1. Switching device (30) for at least one clutch (C0, C1, C5) or at least one brake (B0) of a transmission (10), in particular an automated transmission or a double clutch transmission, of a vehicle, with at least one around a first axis of rotation (31a ) rotatably mounted first shift drum (31) with at least one first button (314, 315, 316) for a first guide element (41, 51, 61) of a shift fork (40) which is axially displaceable or pivotable with respect to the first axis of rotation (31a) , 50, 60), and a second shift drum (32) rotatably mounted about a second axis of rotation (32a) with at least one second button (324, 325, 326) for a second guide element (42, 52, 62), the first shift drum (31) by a first actuator motor (33) and the second shift drum (32) by a second actuator motor (34), characterized in that the first guide element (41, 51, 61) and the second guide element (42, 52, 62) are assigned to the same shift fork (40, 50, 60) and are preferably spaced apart from one another on this shift fork (40, 50, 60) - with the shift fork (40, 50, 60) in at least the first or second guide element (41, 42; 51, 52; 61, 62) contacted the corresponding button (314, 324; 315, 325; 316, 326).
    [2]
    2. Switching device (30) according to claim 1, characterized in that at least one first button (314, 315, 316) is formed by a first shift gate (310) of the first shift drum (31), preferably the first shift gate (310) at least has a first shift gate (35) formed in a lateral surface (31d) of the first shift drum (31).
    [3]
    3. Switching device (30) according to claim 1 or 2, characterized in that at least one second button (324, 325, 326) is formed by a second shift gate (320) of the first shift drum (32), preferably the second shift gate (320 ) has at least one second shift gate (36) formed in a lateral surface (32d) of the second shift drum (32).
    24/47
    [4]
    4. Switching device (30) according to at least one of claims 1 to 3, characterized in that at least one first button (314, 315, 316) is formed by a first switching cam (37), preferably the first switching cam (37) on a End face (31b, 31c) of the first shift drum (31) is arranged and / or is molded into the end face (31b, 31c) of the first shift drum (31).
    [5]
    5. Switching device (30) according to at least one of claims 1 to 4, characterized in that at least one second button (324, 325, 326) is formed by a second switching cam (38), preferably the second switching cam (38) on one End face (32b, 32c) of the second shift drum (32) is arranged and / or is molded into the end face (32b, 32c) of the second shift drum (32).
    [6]
    6. Switching device (30) according to one of claims 1 to 5, characterized in that the shift fork (40, 50, 60) by a preferably by a return spring (47, 57, 67) - pressing force (47a, 57a, 67a) - Is biased in the direction of the first and / or second button (314, 324; 315, 325; 316, 326).
    [7]
    7. Switching device (30) according to one of claims 1 to 6, characterized in that the first button (314, 315, 316) - viewed in a jacket development of the first switching drum (31) - has at least a first ramp section (314a), which at a defined first angle (α) - preferably between 0 ° and 30 ° - inclined to a normal plane (ε) on the first axis of rotation (31a).
    [8]
    8. Switching device (30) according to claim 7, characterized in that the first button (314, 315, 316) - viewed in a jacket development of the first shift drum (31) - has at least one second ramp section (314b) which is below a defined second Angle (β) is preferably arranged between -30 ° and 0 ° - inclined to a normal plane (ε) on the first axis of rotation (31a).
    [9]
    9. Switching device (30) according to one of claims 1 to 8, characterized in that the first button (314, 315, 316) - viewed in a jacket development of the first switching drum (31) - at least one
    25/47 primary activation section (314c, 315c, 316c), which is associated with a maximum deflection of the corresponding shift fork (40, 50, 60) in the direction of the contact pressure (47a, 57a, 67a).
    [10]
    10. Switching device (30) according to one of claims 1 to 9, characterized in that the first button (314, 315, 316) has at least one first holding section (314d, 315d, 316d) which is parallel to a normal plane (ε) the first axis of rotation (31a) is formed, preferably at least one holding section (314d) being arranged between a first ramp section (314a) and a second ramp section (314b).
    [11]
    11. Switching device (30) according to one of claims 1 to 10, characterized in that the second button (324, 325, 326) has at least one second holding section (314d, 315d, 316d) which is parallel to a normal plane (ε) the first axis of rotation (31a) is formed.
    [12]
    12. Switching device (30) according to one of claims 1 to 11, characterized in that the second button (324, 325, 326) has at least one secondary activation section (324c, 325c, 326c), which preferably by a step and / or recess (V1, V2, V3) - with respect to an adjacent second holding section (314d, 315d, 316d).
    [13]
    13. Switching device (30) according to claim 12, characterized in that at least a second holding section (314d, 315d, 316d) and at least one secondary activation section (314c, 315c, 316c) are seamlessly formed in succession.
    [14]
    14. Switching device (30) according to one of claims 1 to 13, characterized in that the first axis of rotation (31a) and the second axis of rotation (32a) are arranged parallel to one another.
    [15]
    15. Switching device (30) according to one of claims 1 to 14, characterized in that the first guide element (41, 51, 61) and the second guide element (42, 52, 62) via a fixed to the shift fork (40, 50, 60) connected coupling area (43, 53, 63) are connected to each other.
    26/47
    [16]
    16. Switching device (30) according to one of claims 1 to 15, characterized in that at least one guide element (41, 51, 61; 42, 52, 62) is formed by a guide roller, a guide pin or a sliding block.
    [17]
    17. Switching device (30) according to one of claims 1 to 16, characterized in that at least one guide element (41, 51, 61; 42, 52, 62) in the contact area with the corresponding button (314, 324; 315, 325; 316 , 326) has a cylindrical or spherical surface.
    [18]
    18. Switching device (30) according to one of claims 1 to 17, characterized in that at least one shift fork (40) is designed as a lever and in the direction of the axes of rotation (31a, 32a) of the shift drums (31, 32) about a geometric pivot axis ( 44a) is pivotally mounted.
    [19]
    19. Switching device (30) according to one of claims 1 to 18, characterized in that at least one shift fork (50, 60) via at least one bearing designed as a guide sleeve (54, 64) parallel to the axes of rotation (31a, 32a) of the shift drums ( 31, 32) is slidably mounted.
    [20]
    20. Transmission (10), in particular automated transmission, double clutch transmission or automated hybrid transmission, with a switching device (30) according to one of claims 1 to 19.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080134819A1|2004-11-23|2008-06-12|Stefan Kapp|Actuator arrangement having selector drums for a twin-clutch transmission|
    US20070209460A1|2006-03-13|2007-09-13|Reid Baldwin|Actuator mechanism for shift motors of a transmission|
    US20130312562A1|2011-02-14|2013-11-28|Magna Powertrain Ag & Co Kg|Actuator system for a clutch and a gear switch|
    WO2013160156A1|2012-04-26|2013-10-31|Magna Powertrain Ag & Co Kg|Hybrid transmission|
    DE102014003239A1|2014-03-10|2015-09-10|GM Global Technology Operations LLC |manual transmission|DE102020204330B3|2020-04-02|2021-06-24|Magna Pt B.V. & Co. Kg|Switching device of a transmission unit, in particular of a hybrid drive train|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50820/2017A|AT520187B1|2017-09-26|2017-09-26|SWITCHING DEVICE FOR AT LEAST ONE CLUTCH OR AT LEAST ONE BRAKE OF A GEARBOX|ATA50820/2017A| AT520187B1|2017-09-26|2017-09-26|SWITCHING DEVICE FOR AT LEAST ONE CLUTCH OR AT LEAST ONE BRAKE OF A GEARBOX|
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