• 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 steering system (100) for a motor vehicle, preferably for a driving school motor vehicle, comprising a steering gear (2), a driver-side steering device (1) for steering the motor vehicle, preferably by a learner driver, via the steering gear (2), and a passenger-side steering device (4) for steering the motor vehicle, preferably by a driving instructor, via the steering gear (2). The steering system (100) is characterized in particular by the fact that the passenger-side steering device (4) is connected to the steering gear (2) via a shaft connection (5) which is flexible at least in part of its length for transmission of torque.
    公开号:AT518994A4
    申请号:T497/2016
    申请日:2016-10-25
    公开日:2018-03-15
    发明作者:Ing Dipl (Fh) Matthias Griessler
    申请人:MAN TRUCK & BUS OESTERREICH GesmbH；
    IPC主号:
    专利说明:

    description
    The invention relates to a steering system for a motor vehicle, preferably for a driving school motor vehicle.
    Motor vehicles with steering systems with additional or double steering for driving school purposes are already known in the prior art. Steering systems of this type comprise the actual series steering train for a learner driver, the series steering train usually having a steering wheel for steering the vehicle and a steering gear. The steering wheel is connected to the steering gear, the steering gear forwarding the steering movements of the steering wheel to wheels of the motor vehicle. In addition to the actual series steering train, these steering systems usually also provide an auxiliary steering train for a driving school teacher, which is composed of an additional steering wheel and an additional connection to the steering gear. By means of the auxiliary steering train, it is possible, for example, in a driving school operation of a motor vehicle, that the driving instructor, who is usually seated in the front passenger seat of the motor vehicle, can actively intervene in the steering processes of the learner driver, who is usually seated in the driver's seat.
    Auxiliary steering lines are known in practice, in which the torque from the additional steering wheel is passed on to the series steering line either via a pure chain drive or via cardan shafts with angular gears. The problem here is, above all, that the space required for this must be available in the motor vehicle, so that the implementation is heavily dependent on the installation space situation in the motor vehicle.
    In other auxiliary steering lines known from practice, the torque is transmitted hydrostatically from the additional steering wheel to the series steering line. However, it is hardly possible not to introduce undesired additional power into the steering system. This usually results in hydraulic amplification, which is often not desired. In addition, a hydraulic pump is usually required for this, which causes additional costs and additional weight and usually has to be operated electrically.
    It is an object of the invention to provide an improved and / or alternative steering system for a motor vehicle, preferably a steering system, by means of which a torque of a driver's side steering2 / 21 is relatively independent of the installation space situation of the motor vehicle
    MAN Truck & Bus Austria Gesmbht ”:. . ·:.
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    Device can be transferred to a steering gear, in particular without reinforcement and / or purely mechanically.
    This object can be achieved with the features of the independent claim. Advantageous developments of the invention can be found in the subclaims and the following description of preferred embodiments of the invention.
    The invention relates to a steering system for a motor vehicle, preferably for a driving school motor vehicle. The motor vehicle is preferably a passenger car or a commercial vehicle, e.g. B. a bus or a truck, especially for driving school purposes.
    The steering system comprises a steering gear, via which preferably wheels of the motor vehicle can be steered.
    The steering system also includes a driver-side steering device, e.g. B. with a steering wheel for steering the motor vehicle via the steering gear. The driver's steering device is preferably used by a learner driver and / or is part of a series steering system.
    The steering system further comprises a passenger-side steering device, e.g. B. with an additional steering wheel, also useful for steering the motor vehicle via the steering gear. The passenger-side steering device is preferably used by a driving instructor and / or is part of an auxiliary steering train.
    The steering system is characterized in particular by the fact that the passenger-side steering device is connected to the steering gear via a shaft connection that is flexible at least in a partial region of its length (expediently flexible shaft) for transmitting a torque. The flexible shaft connection can thus expediently be designed to be flexible over its essentially entire longitudinal extent or only in sections.
    With a flexible shaft connection, at least in sections, the torque can be transmitted relatively independently of the passenger side to the driver side, in particular the steering gear. Only the minimum bending radius of the flexible shaft connection has to be observed. In addition, the flexible shaft connection can be used to implement a purely mechanical steering system, preferably with a ratio of 1: 1, so that undesired steering reinforcement can be advantageously avoided.
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    The steering gear is preferably provided in order to transmit a steering movement to the wheels of the motor vehicle generated via the driver-side steering device - or in the event of a driving school need or an emergency situation via the passenger-side steering device. It is possible that the steering gear z. B. may include a rack and pinion steering, a worm steering, a screw steering or a recirculating ball steering, the z. B. can be supported electrically or hydraulically.
    The steering system, especially the passenger-side steering device, enables z. B. in a situation in which a learner driver temporarily does not have control of the motor vehicle, that a driving instructor can take control of the motor vehicle specifically through his own steering movements without having to take the driver-side steering device removed from the front passenger seat.
    The flexible shaft connection can e.g. B. be arranged in a flexible protective jacket, with the advantage that the flexible shaft connection can be protected from dirt, moisture or other rust-promoting influences. The protective jacket can also make it possible for the flexible shaft connection not to contact any adjacent components directly.
    It is possible that the passenger-side steering device is connected to the flexible shaft connection via a torque transmission device for transmitting a torque, and the torque transmission device preferably has a steering joint shaft. The torque transmission device can comprise, for example, a length-adjustable steering joint shaft with at least one universal joint.
    In a further embodiment of the invention, a bearing element (e.g. a flange bearing) can be arranged relative to the direction of transmission of the torque of the passenger-side steering device between the torque transmission device and the flexible shaft connection, in particular for mounting the torque transmission device and / or the flexible shaft connection. The bearing that can be produced by the bearing element has the particular advantage that radial forces arising from the rotation of the torque transmission device cannot be passed on to the flexible shaft connection or can be transmitted only in a greatly reduced manner.
    In a further embodiment of the invention, the torque transmission device can be connected to the bearing element and / or the flexible shaft connection via an adapter.
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    According to a further embodiment of the invention, the steering system can comprise an overload clutch, e.g. B. by means of which the passenger-side steering device and / or the flexible shaft connection can be decoupled from the steering gear, preferably to protect the flexible shaft connection from overuse and / or in the event of a malfunction of the auxiliary steering train controllable by the passenger-side steering device. This has e.g. B. the advantage that the auxiliary steering train can be disconnected from the series steering train in the event of damage. On the one hand, this preferably protects the flexible shaft connection from excessive torques. On the other hand, in the event of a malfunction, for example when the auxiliary steering line is blocked, the entire auxiliary steering line can preferably be decoupled from the series steering line. However, the series steering train remains usable.
    The overload clutch can e.g. B. in the form of a backlash-free torque limitation with or without an automatic re-engagement. It is conceivable that the overload clutch as z. B. a spring-loaded ball-lock clutch, a spring-loaded ball-lock module clutch, a spring-loaded slip clutch, a permanent magnetic clutch, or a pneumatic or electromagnetic clutch.
    It is possible that the overload clutch can preferably be activated and deactivated manually in order to activate or deactivate steering of the motor vehicle via the steering device on the passenger side.
    The over-load coupling can e.g. B. can be deactivated manually if the auxiliary steering train is not required for a longer period. So it is conceivable that the manual decoupling and the manual coupling by an actuating device from the interior of the vehicle, for. B. can be activated or deactivated by a driving instructor.
    In a further embodiment of the invention, the steering system preferably comprises a mounting (eg flange mounting) for mounting the flexible shaft connection on its end region facing the steering gear. The storage serves in particular to protect the flexible shaft connection from radial forces, which, for. B. may result from a torque transmission by the rotation reversing device mentioned below, in particular the gears.
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    According to a further embodiment of the invention, the driver's steering device can be connected to the steering gear via a torque transmission device for transmitting a torque, wherein the torque transmission device can preferably have a steering cardan shaft. It is possible for the torque transmission device to comprise, for example, a length-adjustable steering joint shaft with at least one universal joint.
    According to a further embodiment of the invention, the steering system comprises e.g. B. a bearing (z. B. a flange bearing) for mounting the torque transmission device at its end area facing the steering gear and / or to protect the steering gear from the flexible shaft connection transmissible radial forces.
    According to a further embodiment of the invention, a direction of rotation reversal device (e.g. a pair of gearwheels) for reversing the direction of rotation of the torque of the flexible shaft connection is arranged relative to the transmission direction of the torque of the passenger-side steering device between the flexible shaft connection and the steering gear. The direction of rotation reversal device is preferably designed as a gear drive and / or is arranged between the overload clutch and the steering gear relative to the direction of transmission of the torque of the steering device on the passenger side. The direction of rotation reversal device has in particular the advantage that a rotational movement of the flexible shaft connection can be converted into an opposite rotational movement. On the other hand, the direction of rotation reversal device is preferably provided to transmit a torque which is applied to the flexible shaft connection to the steering gear.
    According to a further embodiment of the invention, the steering system preferably comprises a bearing profile, preferably for mounting on the motor vehicle, and at least one of the following is held by the bearing profile: the steering gear, the overload clutch, the bearing for storing the flexible shaft connection, the bearing for bearing the torque transmission device and / or the reversing device.
    It is possible that the torque of the steering device can be transmitted to the steering gear essentially without any translation via the flexible shaft connection. This has the advantage that the flexible shaft connection can have a transmission ratio of quasi 1: 1.
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    According to yet another embodiment of the invention, the driver-side steering device and / or the passenger-side steering device for transmitting a torque can be connected to the steering gear in a purely mechanical manner.
    Due to the translation-free transmission and / or the purely mechanical transmission z. B. additional component components and costs can be saved because, for example, hydrostatic support systems consisting, for example, of hydraulic pumps, hydraulic lines, a hydraulic motor and an expansion tank for hydraulic fluid are not required. The hydraulic components are often operated by electrical systems, which cause additional weight and additional power consumption in the vehicle. This saves space in the vehicle.
    It is possible that the flexible shaft connection is bent through an angle of 180 °, e.g. B. plus / minus 15 ° or 30 °.
    The invention also includes a motor vehicle, preferably a driving school motor vehicle, with a steering system as disclosed herein. The motor vehicle can e.g. B. be a passenger car or a commercial vehicle, in particular a bus or a truck.
    The previously described embodiments and features of the invention can be combined with one another. Other advantageous developments of the invention are disclosed in the subclaims or result from the following description of preferred embodiments of the invention in conjunction with the attached figures.
    FIG. 1 shows a perspective view of a steering system according to an embodiment of the invention,
    FIG. 2 shows a top view of the steering system of FIG. 1,
    FIG. 3A shows a detailed view of part of the steering system shown in FIGS. 1 and 2, and
    FIG. 3B shows a detailed view of another part of the steering system shown in FIGS. 1 and 2.
    FIGS. 1 and 2 show a steering system 100 for a motor vehicle, in particular a driving school motor vehicle, according to an embodiment of the invention.
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    The steering system 100 comprises, with common reference to FIGS. 1 and 2, a steering gear 2, a driver-side steering device 1 with a steering wheel for steering the motor vehicle by a learner driver (male / female) via the steering gear 2, and a passenger-side steering device 4 with a steering wheel for steering of the motor vehicle by a driving instructor (male / female) also via the steering gear 2.
    By means of the steering device 4 on the passenger side, it is possible, in particular when the motor vehicle is driving school, that the driving instructor, who is usually seated in a passenger seat of the motor vehicle, can actively intervene in the steering processes of the learner driver, who is usually seated in the driver's seat. So the passenger-side steering device 4 z. B. in a situation in which the learner driver temporarily does not have control of the motor vehicle, so that the driving instructor can take control of the motor vehicle in a targeted manner through his own steering movements without having to take the driver-side steering device 1 removed from the front passenger seat.
    The steering device 4 on the passenger side is connected to the steering gear 2 via a shaft connection 5 (flexible shaft) which is flexible at least in a partial region of its length, for transmitting a torque. In the embodiment shown, the flexible shaft connection 5 is bent by an angle of essentially 180 °.
    The steering device 4 on the passenger side is connected to the flexible shaft connection 5 via a torque transmission device 14 for transmitting a torque. The torque transmission device 14 has a steering universal joint shaft with a universal joint.
    A bearing element 13 is arranged, relative to the transmission direction D of the torque of the passenger-side steering device 4, which is illustrated schematically in FIG. 2, between the torque transmission device 14 and the flexible shaft connection 5. B. via a bracket 15 and on the other for mounting an output end of the torque transmission device 14 and an input end of the flexible shaft connection 5th
    The torque transmission device 14 is connected to the bearing element 13 and / or the flexible shaft connection 5 via an adapter 12.
    A torque of the steering device 4 is translation-free via the flexible shaft connection 5 and can therefore be transferred to the steering gear 2 with a ratio of 1: 1.
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    The passenger-side steering device 4 and the flexible shaft connection 5 can be decoupled from the steering gear 2 via an overload clutch 11, ζ. B. to protect the flexible shaft connection 5 from an overload and in the event of a malfunction of the auxiliary steering train controllable by the passenger-side steering device 4. The overload clutch 11 can be activated and deactivated manually in order to be able to activate or deactivate steering of the motor vehicle via the steering device 4 on the passenger side.
    The driver-side steering device 1 is connected to the steering gear 2 via a torque transmission device 3 for transmitting a torque, ζ. B. with an axis 8 of the steering gear 2. Preferably, the torque transmission device 3 comprises a steering shaft with a universal joint.
    Both the driver-side steering device 1 and the passenger-side steering device 4 are used for the purely mechanical transmission of a torque to the steering gear 2.
    The steering system 100 comprises a direction of rotation reversal device 6, 7 for reversing the direction of rotation of the torque of the flexible shaft connection 5. The direction of rotation reversal device 6, 7 is, relative to the direction of transmission D of the torque of the passenger-side steering device 4 illustrated schematically in FIG. 2, between the flexible shaft connection 5 and the steering gear 2 arranged. The direction of rotation reverser 6, 7 is designed as a gear drive with two meshing gears 6, 7 and, relative to the direction of transmission D of the torque of the passenger-side steering device 4 illustrated schematically in FIG. 2, is arranged in particular between the overload clutch 11 and the steering gear 2. The gear 7 is rotatably coupled to the axis 8 of the steering gear 2.
    The flexible shaft connection 5 is mounted on its end region E facing the steering gear 2 by means of a bearing 10 designed as a flange bearing, while the torque transmission device 3 is likewise mounted on its end region facing the steering gear 2 via a bearing 9 designed as a flange bearing.
    A bearing profile L for mounting on the motor vehicle holds the steering gear 2, the bearing 10 for mounting the flexible shaft connection 5, the bearing 9 for mounting the torque transmission device 3 and the direction of rotation reverser 6, 7.
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    The flexible shaft connection 5 is held at its output end by means of two lock nuts. The overload clutch 11 sits between the bearing 10 for mounting the flexible shaft connection 5 and the output end of the flexible shaft connection 5.
    The bearing 10 serves in particular to protect the flexible shaft connection 5 against radial forces, which, for. B. from a torque transmission through the direction of rotation 6, 7, in particular the gears, may result.
    FIG. 3A shows a perspective detailed view of part of the steering system 100 shown in FIGS. 1 and 2. FIG. 3A shows in particular the area with the torque transmission device 14, the adapter 12, the holder 15, the bearing element 13 and the flexible shaft connection 5.
    FIG. 3B shows a perspective detailed view of another part of the steering system 100 shown in FIGS. 1 and 2. FIG. 3B shows in particular the area with the overload clutch 11, the rotation reversing device 6, 7, the bearing 10 for storing the flexible shaft connection 5, the bearing 9 for mounting the torque transmission device 3, the steering gear 2 including the axis 8 of the steering gear 2 and the bearing profile L.
    The invention is not limited to the preferred embodiments described above. Rather, a large number of variants and modifications are possible which also make use of the inventive idea and therefore fall within the scope of protection. In addition, the invention also claims protection for the subject and the features of the subclaims independent of the features and claims referred to.
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    Reference list
    Driver's steering device
    Steering gear
    Torque transmission device
    4 Passenger-side steering device
    Flexible shaft connection, especially flexible shaft
    6.7 direction reversal device
    axis
    storage
    10 storage
    Overload clutch
    adapter
    Bearing element
    Torque transmission device
    15 bracket
    E end area
    L bearing profile
    D Direction of transmission of the torque of the passenger-side steering device
    100 steering system
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    权利要求:
    Claims (14)
    [1]
    Claims
    Steering system (100) for a motor vehicle, preferably for a driving school motor vehicle, comprising a steering gear (2), a driver-side steering device (1) for steering the motor vehicle, preferably by a learner driver, via the steering gear (2), and a passenger-side steering device (4) for steering the motor vehicle, preferably by a driving instructor, via the steering gear (2), characterized in that the passenger-side steering device (4) has a shaft connection (5) which is flexible at least in part of its length, for transmitting a torque to the steering gear (2) communicates.
    [2]
    2. Steering system (100) according to claim 1, characterized in that the passenger-side steering device (4) via a torque transmission device (14) for transmitting a torque is connected to the flexible shaft connection (5) and preferably the torque transmission device (14) has a steering cardan shaft .
    [3]
    3. Steering system (100) according to claim 2, characterized in that a bearing element (13) is arranged relative to the direction of transmission (D) of the torque of the passenger-side steering device (4) between the torque transmission device (14) and the flexible shaft connection (5) Storage of the torque transmission device (14) and / or the flexible shaft connection (5).
    [4]
    4. Steering system (100) according to claim 2 or 3, characterized in that the torque transmission device (14) via an adapter (12) with the bearing element (13) and / or the flexible shaft connection (5) is connected.
    [5]
    5. Steering system (100) according to one of the preceding claims, characterized in that the steering system (100) comprises an overload clutch (11), preferably by means of the flexible shaft connection (5) and / or the passenger-side steering device (4) of the steering gear ( 2) can be decoupled.
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    [6]
    6. Steering system (100) according to claim 5, characterized in that the overload clutch (11) can be activated and deactivated manually in order to activate or deactivate steering of the motor vehicle via the passenger-side steering device (4).
    [7]
    7. Steering system (100) according to one of the preceding claims, characterized in that the steering system (100) comprises a bearing (10) for mounting the flexible shaft connection (5) on its end region (E) facing the steering gear (2).
    [8]
    8. Steering system (100) according to one of the preceding claims, characterized in that the driver-side steering device (1) via a torque transmission device (3) for transmitting a torque to the steering gear (2) is connected and preferably the torque transmission device (3) is a steering cardan shaft having.
    [9]
    9. Steering system (100) according to claim 8, characterized in that the steering system (100) has a bearing (9) for mounting the torque transmission device (3) on its end area facing the steering gear (2) and / or for protecting the steering gear (2). comprises radial forces which can be transmitted by the flexible shaft connection (5).
    [10]
    10. Steering system (100) according to one of the preceding claims, characterized in that relative to the transmission direction (D) of the torque of the passenger-side steering device (4) between the flexible shaft connection (5) and the steering gear (2) a direction of rotation reversal device (6, 7) arranged to reverse the direction of rotation of the torque of the flexible shaft connection (5) and preferably the direction of rotation reversing device (6, 7) is designed as a gear drive and / or relative to the direction of transmission (D) of the torque of the passenger-side steering device (4) between the overload clutch (11) and the steering gear (2) is arranged.
    [11]
    11. Steering system (100) according to one of the preceding claims, characterized in that the steering system (100) comprises a bearing profile (L), preferably for motor vehicle-mounted assembly, and at least one of the following is held by the bearing profile (L):
    the steering gear (2), the mounting (10) for mounting the flexible shaft connection (5), the mounting (9) for mounting the torque transmission device (3), the direction of rotation reversal device (6, 7).
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    [12]
    12. Steering system (100) according to one of the preceding claims, characterized in that the torque of the passenger-side steering device (4) via the flexible shaft connection (5) can be transmitted without translation to the steering gear (2).
    [13]
    13. Steering system (100) according to one of the preceding claims, characterized gekennzeich5 net that the passenger-side steering device (4) for transmission of a torque is purely mechanical with the steering gear (2) in connection.
    [14]
    14. Steering system (100) according to one of the preceding claims, characterized in that the flexible shaft connection (5) is bent by an angle of 180 °, plus / minus 15 ° or 30 °.
    15 15. Motor vehicle, preferably driving school motor vehicle, with a steering system (100) according to one of the preceding claims.
    *****
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    同族专利:
    公开号 | 公开日
    EP3315382B1|2020-05-13|
    EP3315382A1|2018-05-02|
    AU2017248570A1|2018-05-10|
    AT518994B1|2018-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3814204A|1972-08-21|1974-06-04|Ecolotec Inc|Dual steering for tilt-cab vehicle|
    AT330590B|1973-09-11|1976-07-12|Eschlbock Rudolf|ADDITIONAL STEERING DEVICE FOR BOTH-DIRECTIONAL TRACTORS|
    DE202007003703U1|2007-03-13|2008-07-17|Krauss-Maffei Wegmann Gmbh & Co. Kg|Military driving school vehicle, in particular driving school tank|
    NL1014912C2|2000-04-11|2001-10-12|Skf Eng & Res Centre Bv|Hand control means.|AT520759B1|2017-12-29|2019-10-15|MAN TRUCK & BUS OESTERREICH GesmbH|Device for steering a motor vehicle and intermediate gear for this purpose|
    法律状态:
    2022-01-15| PC| Change of the owner|Owner name: MAN TRUCK & BUS SE, DE Effective date: 20211123 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA497/2016A|AT518994B1|2016-10-25|2016-10-25|Steering system for a motor vehicle, preferably driving school motor vehicle|ATA497/2016A| AT518994B1|2016-10-25|2016-10-25|Steering system for a motor vehicle, preferably driving school motor vehicle|
    EP17194331.9A| EP3315382B1|2016-10-25|2017-10-02|Steering system for a motor vehicle, preferably a training vehicle|
    AU2017248570A| AU2017248570A1|2016-10-25|2017-10-20|Steering system for a motor vehicle, preferably driving school motor vehicle|
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