Calibration Method for Inter-Axle Differential Control System
    21.
    发明公开
    Calibration Method for Inter-Axle Differential Control System 有权
    加拿大国家石油公司(Zwischenwellendifferential)

    公开(公告)号:EP1690728A1

    公开(公告)日:2006-08-16

    申请号:EP06101444.5

    申请日:2006-02-09

    申请人: Deere & Company

    IPC分类号: B60K23/08

    CPC分类号: B60K23/0808 B60W2520/263

    摘要: A vehicle (8) includes steerable front wheels (18), an interaxle differential (14) for transmitting torque from an engine (10) to the front wheels (18) and to rear wheels (22). The differential (14) includes a controllable clutch (24) operable to control a ratio of front wheel speed to rear wheel speed. A control unit (30) controls the clutch (24) as a function of sensed steering angles and stored information including steering angles and corresponding front to rear wheel speed ratio values. The control unit (30) is automatically calibrated. The control unit (30) periodically obtains steering angle values, periodically obtains front and rear wheel speed values, periodically generates new front to rear wheel speed ratio values, and replaces one of the stored front to rear wheel speed ratio values with one of the new ratio values if the steering angle values indicate that the vehicle (8) has been in a straight ahead travel mode for at least a certain time period.

    摘要翻译: 车辆(8)包括可转向前轮(18),用于将扭矩从发动机(10)传递到前轮(18)和后轮(22)的齿间差速器(14)。 差速器(14)包括可操作的离合器(24),其可操作以控制前轮速度与后轮速度的比率。 控制单元(30)根据感测到的转向角度和存储的包括转向角和相应的前后轮速比值的信息来控制离合器(24)。 控制单元(30)自动校准。 控制单元(30)周期性地获得转向角值,周期性地获得前轮速度值和后轮速度值,周期性地产生新的前后轮速比值,并用新的 如果转向角值指示车辆(8)至少在一定时间段内处于直行前进行驶模式,则比率值。

    Road surface frictional coefficient estimating apparatus
    22.
    发明公开
    Road surface frictional coefficient estimating apparatus 有权
    用于估计道路表面的摩擦系数的装置

    公开(公告)号:EP1510428A3

    公开(公告)日:2005-11-16

    申请号:EP04020184.0

    申请日:2004-08-25

    发明人: Kogure, Masaru

    IPC分类号: B60T8/00

    摘要: A braking/driving force fx is calculated at S102, and a lateral force Fy is calculated at S103. At S104, reference is made to a preset map to select a road surface µ estimation part to be used for determination (to select a first road surface µ estimation part or a second road surface µ estimation part or nonperformance of determination). At S105, a display flag Fla from the road surface µ selection part is read. Indication 1 is displayed (S107) in the case of a road having a high µ. Indication 2 is displayed (S109) in the case of a road having a medium µ. Indication 3 is displayed (S111) in the case of a road having a low µ. Indication 0 is displayed (S112) in other cases wherein the road surface µ is unknown.

    Vehicle control apparatus
    23.
    发明公开
    Vehicle control apparatus 有权
    Vorrichtung zur Fahrzeugregelung

    公开(公告)号:EP1393961A2

    公开(公告)日:2004-03-03

    申请号:EP03255445.3

    申请日:2003-09-01

    发明人: Kadota, Keiji

    IPC分类号: B60L11/02 B60K6/02

    摘要: A vehicle apparatus is provided to enable a clutch (12) to be re-engaged without creating a shock when there is rollback of the wheels (3L or 3R) which are driven by an electric motor (4) via the clutch (12). The vehicle apparatus comprises a travel direction command determining section (steps S43, S44), an electric motor counterelectromotive force detecting section (step S22), and a wheel rotational direction determining section (steps S42, S45, S46). The travel direction command determining section (steps S43, S44) is configured to determine whether a forward travel command or a reverse travel command has been issued. The electric motor counterelectromotive force detecting section (step S22) is configured to detect a counterelectromotive force of an electric motor (4) that drives a wheel (3L or 3R) of a vehicle. The wheel rotational direction determining section (steps S42, S45, S46) is configured to determine whether the wheel (3L or 3R)is rotating in an opposite direction to a vehicle travel direction command determined by the travel direction command determining section (steps S43, S44), based on a determination that a polarity of the counterelectromotive force detected by the electric motor counterelectromotive force detecting section (steps S22) does not match the vehicle travel direction command determined by the travel direction command determining section (steps S43, S44).

    摘要翻译: 提供了一种车辆装置,用于当通过离合器(12)由电动机(4)驱动的车轮(3L或3R)回滚时,能够使离合器(12)重新接合而不产生冲击。 车辆装置包括行驶方向指令确定部(步骤S43,S44),电动机反电动势检测部(步骤S22)和车轮旋转方向确定部(步骤S42,S45,S46)。 行驶方向指令判定部(步骤S43,S44)被配置为确定是否发出了前进行驶指令或反向行驶指令。 电动机反电动势检测部(步骤S22)被构造为检测驱动车辆的车轮(3L或3R)的电动机(4)的反电动势。 车轮旋转方向确定部(步骤S42,S45,S46)被配置为确定车轮(3L或3R)是否沿与由行驶方向命令确定部分确定的车辆行驶方向指令相反的方向旋转(步骤S43, S44),基于由电动机反电动势检测部检测出的反电动势的极性(步骤S22)与由行驶方向指令判断部判定的车辆行驶方向指示不一致的判断(步骤S43,S44)。

    A four-wheel drive vehicle
    24.
    发明公开
    A four-wheel drive vehicle 有权
    Vierradgetriebenes Fahrzeug

    公开(公告)号:EP1359044A2

    公开(公告)日:2003-11-05

    申请号:EP03009235.7

    申请日:2003-04-23

    IPC分类号: B60K23/08

    摘要: A four-wheel drive vehicle provides a torque distribution clutch mechanism which directly transmits the driving force generated from the engine to one of tow front wheels or two rear wheels, and which transmits it to the other wheels therethrough in order to control the engaging force in accordance with a traveling status of the four-wheel drive vehicle. The vehicle further comprises a tight corner judging means, a normal mode setting means, a low friction road judging means and a tight mode setting means. The tight corner judging means judges whether the vehicle travels at a large turning angle or not, and the normal mode setting means sets a normal mode to control the engaging force when it is judged by the tight corner judging means that the vehicle does not travel at the large turning angle. Further, the low friction road judging means judges whether the vehicle travels on a low friction road or not, and the tight mode setting means for setting a tight mode to control the engaging force in a condition that it is judged by the tight corner judging means that the vehicle travels at the large turning angle when it is judged by the low friction road judging means that the vehicle dose not travel on the low friction road.

    摘要翻译: 四轮驱动车辆提供扭矩分配离合器机构,其将从发动机(22)产生的驱动力直接传递到两个前轮(FT1,FT2)或两个后轮(RT3,RT4)中的一个,并将其传递 到其他车轮,以便根据四轮驱动车辆的行驶状态来控制接合力。 该车辆还包括紧密拐角判断装置,正常模式设定装置,低摩擦道路判断装置和紧密模式设定装置。 紧角判断装置判断车辆是否以大的转动角度行驶,而正常模式设定装置设定正常模式,以便在紧密拐角判断装置判断车辆不行驶时控制接合力 大转弯角度。 此外,低摩擦道路判断装置判断车辆是否在低摩擦道路上行驶,以及紧密模式设定装置,用于设定紧密模式以在通过紧密拐角判断装置判断的条件下控制接合力 当由低摩擦道路判断装置判断车辆不在低摩擦道路上行驶时,车辆以大转弯角度行驶。

    VEHICLE, AND METHOD AND SYSTEM OF CONTROLLING A VEHICLE

    公开(公告)号:EP2675647B1

    公开(公告)日:2018-12-05

    申请号:EP12712593.8

    申请日:2012-02-20

    发明人: STARES, Pete

    摘要: A controller (40), method of control, and motor vehicle (1) are provided. The controller (40) is for controlling a driveline (105,5) of a motor vehicle (1) to transition between first and second modes of operation, wherein a first group of one or more wheels and not a second group of one or more wheels is connected to a torque transmission (118) path from the prime mover means when the driveline (105,5) is in the first mode of operation and both the first and second groups of one or more wheels are connected to the torque transmission (118) path when the driveline (105,5) is in the second mode of operation, wherein the second group of one or more wheels is connected to the torque transmission (118) path by means of an auxiliary portion (10,110) comprising first and second releasable torque transmitting means and a prop shaft (123,23), the first releasable torque transmitting means being operable to connect a first end of the prop shaft (123,23) to the torque transmission (118) path, the second releasable torque transmitting means being operable to connect a second end of the prop shaft (123,23) to the second group of one or more wheels. The controller is configured to: control the auxiliary portion (10,110) to switch the driveline (105,5) between the first and second modes of operation such that in the first mode the prop shaft (123,23) is disconnected from both the torque transmission (118) path and said second group of one or more wheels; control the driveline (105,5) to transition from the first mode to the second mode when a second mode trigger condition is met, the second mode trigger condition including the requirement that the magnitude of the value of a vehicle (101,1) operating parameter of a first set of one or more vehicle (101,1) operating parameters is less than or greater than a first threshold (A1, T2) value; and control the driveline (105,5) to subsequently transition from the second mode to the first mode when a first mode trigger condition is met, the first mode trigger condition including the requirement that the magnitude of the value of said vehicle (101,1) operating parameter of the first set is greater than or less than a second threshold (A1, T2) value, the second threshold (A1, T2) value having a value different from the first threshold (A1, T2) value, wherein values of the first and/or second threshold (A1, T2) values are responsive to a value of a vehicle (101,1) operating temperature parameter.

    ANTRIEBSVORRICHTUNG FÜR EIN ALLRADGETRIEBENES KRAFTFAHRZEUG

    公开(公告)号:EP3359410A1

    公开(公告)日:2018-08-15

    申请号:EP16778360.4

    申请日:2016-10-07

    申请人: Audi AG

    IPC分类号: B60K28/16 B60W30/184

    摘要: The invention relates to a drive device for an all-wheel-drive two-track motor vehicle, in the powertrain of which a drive assembly (1) outputs permanently to a first vehicle axle (VA) and to a second vehicle axle (HA) via a center clutch (13) during a driving operation. When the center clutch (13) is engaged, the second vehicle axle (HA) is connected to the powertrain, and when the clutch (13) is disengaged, the second vehicle axle (HA) is decoupled from the powertrain. In a driving situation in which the all-wheel drive is enabled and has axle frictional coefficients (µVA, µHA) of differing values, a greater wheel torque (MVA) can be applied to the vehicle axle (VA) with the larger axle frictional coefficient (µVA) than to the vehicle axle (HA) with the smaller axle frictional coefficient (µHA). A controller (27) is provided which limits the drive assembly (1) to a maximally allowable motor torque (Mmot,max) in order to limit the motor torque. According to the invention, the controller (27) has an analysis unit (29) with which the maximally allowable motor torque (Mmot,max) can be ascertained and adapted in order to prevent an overload of the vehicle axle (VA) with the larger axle frictional coefficient (µVA). The maximally allowable motor torque (Mmot,max) is produced by adding (45) a structurally specified overload threshold (MVA,Ü), which is stored in the analysis unit (29) and which, once reached, indicates the risk of component damage to the vehicle axle (VA) with the larger axle frictional coefficient (µVA), to at least one maximally allowable potential moment of inertia component (MT,HA) on the vehicle axle (HA) with the smaller axle frictional coefficient (µHA), said moment of inertia component (MT,HA) relieving the load on the vehicle axle (VA) with the larger axle frictional coefficient (µVA).

    MOTORCYCLE
    29.
    发明公开
    MOTORCYCLE 审中-公开
    MOTORRAD

    公开(公告)号:EP2511502A4

    公开(公告)日:2017-04-26

    申请号:EP10835863

    申请日:2010-11-30

    摘要: An object is to provide a motorcycle that sets a target slip value based on an accelerator operation by a driver, and is able to prevent sharp drop of the output torque of the drive power source and to obtain comfortable riding during execution of traction control. The motorcycle includes: a target slip value calculating section for calculating a target slip value, based on an accelerator operation by a driver; and an actual slip value calculating section for calculating an actual slip value, based on the difference between the rotation speed of the front wheel and the rotation speed of the rear wheel. The motorcycle further has a drive power source control section for reducing the output torque of the drive power source, based on the difference between a criterion value different from the target slip value and the actual slip value when the actual slip value is lower than the target slip value.

    摘要翻译: 本发明的目的是提供一种摩托车,其基于驾驶员的加速器操作设定目标滑移值,并且能够防止驱动力源的输出扭矩的急剧下降,并且能够在执行牵引力控制期间获得舒适的乘坐。 摩托车包括:目标滑移值计算部分,用于基于驾驶员的加速器操作来计算目标滑动值; 以及实际滑移值计算部分,用于基于前轮的转速和后轮的转速之间的差来计算实际滑移值。 摩托车还具有驱动力源控制部,该驱动力源控制部根据与目标滑移值不同的基准值与实际滑移值低于目标值时的实际滑移值之间的差来减小驱动力源的输出转矩 滑值。