Slip control device for vehicle wheel
    1.
    发明授权
    Slip control device for vehicle wheel 失效
    车轮滑动控制装置

    公开(公告)号:US5320422A

    公开(公告)日:1994-06-14

    申请号:US118088

    申请日:1993-09-07

    摘要: A slip control device includes a slip detecting device for detecting a slip rate of a drive wheel, an engine control device for reducing an engine output when the slip rate exceeds a first threshold value, and a brake control device for applying a brake force on the drive wheel when the slip rate exceeds a second threshold value. A frictional coefficient detecting device detects a frictional coefficient of a road, on which the vehicle is running, and a threshold determining device provides the first and second threshold values in accordance with the frictional coefficient. The engine output control and brake force control can be effectively utilized for the slip control in the traction control.

    摘要翻译: 滑动控制装置包括用于检测驱动轮的滑移率的滑移检测装置,当滑移率超过第一阈值时用于减小发动机输出的发动机控制装置,以及用于在所述滑动速度下施加制动力的制动控制装置 当滑移率超过第二阈值时,驱动轮。 摩擦系数检测装置检测车辆行驶的道路的摩擦系数,阈值判定装置根据摩擦系数提供第一和第二阈值。 发动机输出控制和制动力控制可以有效地用于牵引力控制中的滑差控制。

    Slip control system for motor vehicle
    2.
    发明授权
    Slip control system for motor vehicle 失效
    电动车滑动控制系统

    公开(公告)号:US5193888A

    公开(公告)日:1993-03-16

    申请号:US658753

    申请日:1991-02-21

    CPC分类号: B60T8/48 B60T8/175

    摘要: A slip control system for a motor vehicle controls slippage of driving wheels and includes, a sensor for detecting a slip ratio of each driving wheel, a device for detecting a reduction in speed of each wheel, and a traction control system for decreasing a slip of each driving wheel by controlling brake fluid pressure in each driving wheel so that the slip ratio of each driving wheel is at least equal to a predetermined desired slip ratio when the slip ratio of each driving wheel becomes equal to the desired slip ratio. The system further includes an antiskid brake system for controlling brake fluid pressure, based on the reduction speed of each wheel, so as to cancel a lock condition of the wheel. The antiskid brake system has a first control device for controlling the brake pressure fluid in a condition in which a traction control operation is not carried out by the traction control system, and a second control device for controlling the brake pressure fluid in a condition in which a traction control operation is carried out by the traction control system.

    摘要翻译: 用于机动车辆的滑动控制系统控制驱动轮的滑动,并且包括用于检测每个驱动轮的滑移率的传感器,用于检测每个车轮的速度降低的装置,以及用于减少滑动的牵引力控制系统 每个驱动轮通过控制每个驱动轮中的制动液压力使得当每个驱动轮的滑移比变得等于期望的滑移率时,每个驱动轮的滑移比至少等于预定的期望滑移率。 该系统还包括用于基于每个车轮的减速度控制制动液压力的防滑制动系统,以消除车轮的锁定状态。 防滑制动系统具有第一控制装置,用于在牵引控制系统不执行牵引控制操作的状态下控制制动压力流体;以及第二控制装置,用于在下述情况下控制制动压力流体: 牵引力控制系统由牵引力控制系统进行。

    Slip control mechanism of a car
    3.
    发明授权
    Slip control mechanism of a car 失效
    汽车滑动控制机制

    公开(公告)号:US5072995A

    公开(公告)日:1991-12-17

    申请号:US604442

    申请日:1990-10-29

    IPC分类号: B60T8/175 B60T8/48

    CPC分类号: B60T8/4809 B60T8/175

    摘要: A slip control mechanism of a car has a hydraulic booster for driving a master cylinder for providing hydraulic pressure to a first brake provided for each driven wheel, a second brake provided for each driving wheel, a slip detection device for detecting the slip of driving wheels, a slip control device for operating the second brake, based on signals from the slip detecting device, by using the operating oil of the hydraulic booster as operating oil of the second brake so as to reduce the slip of the driving wheels, the control device comprising a pressure control valve for controlling hydraulic pressure of the operating oil of the second brake, including a pressure reducing valve for reducing the hydraulic pressure of the operating oil of the second brake, detection device for detecting completion of the slip control by the operation of the second brake, and a release device for opening the pressure reducing valve for a predetermined time so as to release the operating oil of the second brake on the occasion of the completion of the slip control by the operation of the second brake.

    摘要翻译: 汽车的滑动控制机构具有用于驱动主缸的液压助力器,用于为每个从动轮提供的第一制动器提供液压,为每个驱动轮设置第二制动器,用于检测驱动轮滑动的滑动检测装置 根据来自滑动检测装置的信号,通过使用液压助力器的工作油作为第二制动器的工作油来操作第二制动器的滑动控制装置,以减少驱动轮的滑动,控制装置 包括用于控制第二制动器的工作油的液压的压力控制阀,包括用于降低第二制动器的工作油的液压的减压阀,用于检测通过操作的操作完成滑差控制的检测装置 第二制动器和用于打开减压阀预定时间的释放装置,以释放该操作油的操作油 通过第二制动器的操作来完成滑动控制的情况下的制动。

    Slip control system for motor vehicle
    5.
    发明授权
    Slip control system for motor vehicle 失效
    机动车滑动控制系统

    公开(公告)号:US5584541A

    公开(公告)日:1996-12-17

    申请号:US336212

    申请日:1994-11-03

    IPC分类号: B60T8/175 B60K28/16

    CPC分类号: B60T8/175

    摘要: A slip control system for a motor vehicle controls slippage of driving wheels and includes a sensor for detecting a slip ratio of each driving wheel, a device for decreasing slip of each driving wheel by controlling a driving force transmitted to the driving wheel so that the slip ratio of the driving wheel is at least equal to a predetermined desired slip ratio when the slip ratio of the driving wheel is equal to the desired slip ratio, a sensor for detecting a yawing rate of the vehicle, and a sensor for detecting a steering amount of the vehicle. The slip decreasing device includes a correcting device for decreasing the desired slip ratio when a steering condition is detected based on amounts detected by both the yawing rate detecting sensor and the steering amount detecting sensor.

    摘要翻译: 用于机动车辆的滑动控制系统控制驱动轮的滑动,并且包括用于检测每个驱动轮的滑移率的传感器,通过控制传递到驱动轮的驱动力来减小每个驱动轮的滑动的装置,使得滑动 当驱动轮的滑移比等于期望的滑移率时,驱动轮的比例至少等于预定的期望滑移率,用于检测车辆的偏航率的传感器和用于检测转向量的传感器 的车辆。 滑移减小装置包括校正装置,用于根据由偏航速度检测传感器和转向量检测传感器检测到的量来检测转向条件时减小所需的滑移率。

    Vehicle slip control system
    6.
    发明授权
    Vehicle slip control system 失效
    车辆滑行控制系统

    公开(公告)号:US5263548A

    公开(公告)日:1993-11-23

    申请号:US867832

    申请日:1992-04-14

    IPC分类号: B60K28/16 B60T8/175 B60T8/58

    摘要: A slip control system for a vehicle having a differential which distributes engine output to left and right driving wheels suppresses the engine output when the slip of at least one of the driving wheels exceeds a first threshold value. Slips of the left and right driving wheels are periodically detected, and a spin pattern of the driving wheels is periodically determined on the basis of the slips of the left and right driving wheels. Whether the vehicle is running on a split surface road, where the parts of the road surface in contact with the left and right driving wheels have different friction coefficients, is determined on the basis of the present spin pattern and the preceding spin pattern according to a predetermined split surface determining rule. When it is determined that the vehicle is running on a split surface road, the first threshold value is increased.

    摘要翻译: 用于具有将发动机输出分配给左右驱动轮的差速器的车辆的滑动控制系统在至少一个驱动轮的滑移超过第一阈值时抑制发动机输出。 周期性地检测左右驱动轮的滑动,并且基于左右驱动轮的滑移周期性地确定驱动轮的旋转图案。 基于当前的自旋图案和前一个旋转图案,根据一个或多个旋转图案来确定车辆是否在分开的表面道路上行驶,其中与左右驱动轮接触的路面的部分具有不同的摩擦系数 预定分割面确定规则。 当确定车辆在分裂面道路上行驶时,第一阈值增加。

    Vehicle slip control system
    7.
    发明授权
    Vehicle slip control system 失效
    车辆滑行控制系统

    公开(公告)号:US5340204A

    公开(公告)日:1994-08-23

    申请号:US137385

    申请日:1993-10-18

    CPC分类号: B60T8/175

    摘要: A slip control system for a vehicle having rear right and left drive wheels includes a traction control for controlling a slip rate of a wheel by controlling a braking hydraulic pressure for the wheel under a non-braking condition. The slip rate of a wheel is controlled, by controlling the braking hydraulic pressure for the wheel under a braking condition, so as to provide an anti-skid control. A start of the control of the slip rate is restricted by the anti-skid control. The control of the slip rate by the anti-skid control is applied commonly to the right and left drive wheels, while the control of the slip rate by the traction control is applied independently to the right and left drive wheels. The anti-skid control can be always properly carried out without being affected by the traction control.

    摘要翻译: 用于具有后左右驱动轮的车辆的滑动控制系统包括用于通过在非制动条件下控制车轮的制动液压来控制车轮的滑动速度的牵引控制。 通过在制动条件下控制车轮的制动液压来控制车轮的滑移率,从而提供防滑控制。 滑移率的控制开始受到防滑控制的限制。 通过防滑控制的滑移率的控制通常适用于左右驱动轮,而通过牵引力控制的滑移率的控制独立地应用于左右驱动轮。 防滑控制可以始终正确执行,而不受牵引力控制的影响。

    Traction control system for an automotive vehicle utilizing a wheel slip
duration timer
    8.
    发明授权
    Traction control system for an automotive vehicle utilizing a wheel slip duration timer 失效
    用于使用车轮滑动持续时间计时器的机动车辆的牵引力控制系统

    公开(公告)号:US5428539A

    公开(公告)日:1995-06-27

    申请号:US868424

    申请日:1992-04-15

    CPC分类号: B60T8/48 B60T8/175

    摘要: When a wheel slip value of the driven wheel relative to a surface of road becomes excessive during acceleration, torque to be applied to the driven wheels is controlled by the traction control so as to make the actual wheel slip value of the driven wheel become a predetermined target value. There is counted the duration of time during which the actual wheel slip value of the driven wheel becomes smaller than a predetermined threshold value set as a value smaller than the target value, and a control value for the traction control is corrected in accordance with the duration of time counted. This correction is implemented so as to increase the torque to be applied to the driven wheels larger as the duration of time counted becomes longer. The control value to be corrected includes the target value itself or a road surface friction coefficient .mu. as a parameter for setting the target value.

    摘要翻译: 当从动轮相对于道路表面的车轮滑移值在加速期间变得过大时,通过牵引力控制来控制对从动轮施加的转矩,从而使从动轮的实际车轮滑移值成为预定的 目标价值。 计算从动轮的实际车轮滑移值变得小于设定为小于目标值的值的预定阈值的持续时间,并且根据持续时间来修正牵引力控制的控制值 的时间计数。 实施这种校正,以便随着计时的持续时间变长,增加施加到从动轮的扭矩更大。 要校正的控制值包括目标值本身或作为用于设定目标值的参数的路面摩擦系数mu。

    Traction control system for motor vehicle
    9.
    发明授权
    Traction control system for motor vehicle 失效
    汽车牵引力控制系统

    公开(公告)号:US5281008A

    公开(公告)日:1994-01-25

    申请号:US904311

    申请日:1992-06-25

    CPC分类号: B60T8/175 B60T8/48

    摘要: A traction control system for a motor vehicle having driving wheels and driven wheels. The traction control system comprises sensors for detecting a speed of each of the driving wheels of the vehicle; sensors for detecting a speed of each of the driven wheels of the vehicle; and a mechanism for calculating a slip value of the driving wheels based on the detected speeds of the driving and driven wheels. The traction control system also includes an engine output control mechanism for controlling each of the driving wheels so that the slip value of each of the driving wheels is controlled to become equal to a predetermined first desired slip value when the slip value of each driving wheel is greater than the predetermined first desired slip value; and a brake force control mechanism for controlling each of the driving wheels so that the slip value of each of the driving wheels is controlled to become equal to a predetermined second desired slip value when the slip value of each driving wheel is greater than the predetermined second desired slip value. The control system also includes an engine control restriction mechanism for restricting the engine output control mechanism while the braking control is carried out.

    摘要翻译: 一种用于具有驱动轮和从动轮的机动车辆的牵引力控制系统。 牵引力控制系统包括用于检测车辆每个驱动轮的速度的传感器; 用于检测车辆的每个从动轮的速度的传感器; 以及基于检测到的驱动轮和从动轮的速度来计算驱动轮的滑移值的机构。 牵引力控制系统还包括一个发动机输出控制机构,用于控制每个驱动轮,使得每个驱动轮的滑移值在每个驱动轮的滑移值为 大于预定的第一期望滑移值; 以及制动力控制机构,用于控制每个驱动轮,使得当每个驱动轮的滑移值大于预定秒时,每个驱动轮的滑移值被控制为等于预定的第二期望滑移值 所需滑差值。 控制系统还包括用于在执行制动控制时限制发动机输出控制机构的发动机控制限制机构。