Traction control system for vehicle
    1.
    发明授权
    Traction control system for vehicle 失效
    车辆牵引力控制系统

    公开(公告)号:US5539643A

    公开(公告)日:1996-07-23

    申请号:US12126

    申请日:1993-02-01

    CPC分类号: B60K28/16

    摘要: A traction control system for a vehicle includes a calculator for calculating a speed of a driven wheel of the vehicle, a calculator for calculating a vehicle speed and a calculator for calculating a slip rate of the driven wheel on the basis of the driven wheel speed and the vehicle speed, such that the feed-back control of a throttle valve is carried out to reduce the output torque from an engine to inhibit the excessive slipping of the driven wheel, when the slip rate exceeds a predetermined threshold value. The system further includes a calculator for calculating a total grip force of the vehicle, a calculator for calculating an initial engine required torque at the start of the feed-back control of the throttle valve on the basis of the total grip force, and a calculator for calculating an initial throttle opening degree of the throttle valve on the basis of the initial engine required torque. Thus, the excessive slipping of the driven wheels can be reduced without an abrupt change exerted to the behavior of the vehicle by setting an appropriate initial throttle opening degree.

    摘要翻译: 一种用于车辆的牵引力控制系统包括:用于计算车辆的从动轮的速度的计算器,用于计算车辆速度的计算器和用于根据从动轮速度计算从动轮的滑移率的计算器;以及 使得当滑移率超过预定阈值时,执行节气门的反馈控制以减小来自发动机的输出扭矩以抑制从动轮的过度滑动。 该系统还包括用于计算车辆的总抓握力的计算器,用于基于总抓握力计算节气门的反馈控制开始时的初始发动机所需扭矩的计算器,以及计算器 用于基于初始发动机所需转矩来计算节气门的初始节气门开度。 因此,通过设定适当的初始节气门开度,可以减小从动轮的过度滑动,而不会对车辆的行为施加突然变化。

    Wheel speed detecting device for vehicle
    2.
    发明授权
    Wheel speed detecting device for vehicle 失效
    车轮转速检测装置

    公开(公告)号:US5490070A

    公开(公告)日:1996-02-06

    申请号:US012141

    申请日:1993-02-01

    IPC分类号: B60T8/172 B60T8/66

    CPC分类号: B60T8/172

    摘要: A wheel speed detecting device for a vehicle having wheel speed detectors for detecting left and right wheel speeds, respectively; a turning state detector for detecting the turning state of the vehicle; and a correcting and calculating device for correcting the wheel speeds on the basis of an output from the turning state detector and for calculating a value representative of the left and right wheel speeds on the basis of the corrected wheel speeds. Thus, an error of wheel speeds detected during turning of the vehicle can be compensated for, thereby determining a correct wheel speed.

    摘要翻译: 一种用于车辆的车轮速度检测装置,其具有分别用于检测左右车轮速度的车轮速度检测器; 用于检测车辆的转动状态的转向状态检测器; 以及校正和计算装置,用于基于来自转弯状态检测器的输出来校正车轮速度,并且基于校正的车轮速度计算表示左右车轮速度的值。 因此,可以补偿在车辆转动期间检测到的车轮速度的误差,从而确定正确的车轮速度。

    System for preventing excessive slip of drive wheel of vehicle
    3.
    发明授权
    System for preventing excessive slip of drive wheel of vehicle 失效
    防止车辆驱动轮过度滑动的系统

    公开(公告)号:US5130929A

    公开(公告)日:1992-07-14

    申请号:US551988

    申请日:1990-07-12

    CPC分类号: B60T8/175

    摘要: In a system for preventing an excessive slipping of a drive wheel of a vehicle, including a drive wheel torque decrement calculating means for calculating a drive wheel torque decrement in accordance with the slipping state of the drive wheel on the basis of a drive wheel velocity and a vehicle velocity, there is further includes a switchover means which produces a torque decrement switchover signal in accordance with a further large slipping of the drive wheel appearing during a given torque reduction control, and a torque decrement changeover means which delivers, to the drive wheel torque decrement calculating means,a correcting signal indicative of a command to reduce the degree of relation of the torque decrement to the slipping state of the drive wheel in accordance with an output of the torque decrement changeover signal from the switchover means, whereby it is possible to avoid a control hunting which may be caused by a larger slipping state of the drive wheel due to a disturbance factor.

    摘要翻译: 在用于防止车辆的驱动轮过度滑动的系统中,包括驱动轮扭矩减小计算装置,用于根据驱动轮速度根据驱动轮的滑动状态来计算驱动轮扭矩减小;以及 车速,还包括切换装置,其根据在给定的扭矩降低控制期间出现的驱动轮的进一步大的滑动而产生扭矩递减切换信号;以及扭矩递减切换装置,其将驱动轮 扭矩递减计算装置,根据来自切换装置的扭矩递减转换信号的输出,指示减小转矩递减与驱动轮滑动状态的关系程度的命令的校正信号,由此可能 以避免可能由于扰动而由驱动轮的较大滑动状态引起的控制狩猎 因素。

    Steering wheel turning angle detector and method for controlling yawing
for vehicle
    4.
    发明授权
    Steering wheel turning angle detector and method for controlling yawing for vehicle 失效
    方向盘转向角检测器及车辆偏航控制方法

    公开(公告)号:US5001637A

    公开(公告)日:1991-03-19

    申请号:US385517

    申请日:1989-07-27

    IPC分类号: B62D6/04 B62D15/02

    CPC分类号: B62D6/04 B62D15/02

    摘要: A steering wheel turning angle detector for a vehicle, includes a steering wheel turning angle sensor attached to a steering wheel for detecting a steering wheel turning angle, a yaw rate detector for detecting a yaw rate of the vehicle, a steering wheel turning angle prediction circuit, receiving an output from the yaw rate detecting means for predicting the steering wheel turning angle in response to the detected yaw rate, and a steering wheel turning angle correcting circuit, receiving output signals from the steering wheel turning angle sensor and the steering wheel angle prediction circuit, for correcting an output value of the steering wheel turning angle sensor in response to an error between outputs from the steering wheel turning angle sensor and the steering wheel turning angle prediction circuit.

    Yaw motion control device
    5.
    发明授权
    Yaw motion control device 失效
    Yaw运动控制装置

    公开(公告)号:US5333058A

    公开(公告)日:1994-07-26

    申请号:US594906

    申请日:1990-10-09

    摘要: A yaw motion control device for a vehicle includes a steering angle sensor for detecting the steering angle of a steering wheel of the vehicle and a steering angle memory means operatively connected to the steering angle sensor for storing at least a previous value of the steering angle. A reference yaw rate generator generates a reference yaw rate in response to an input from the steering angle memory, and a yaw rate detector detects the yaw rate of the vehicle. Further, a yaw motion corrector controls the yaw motion of the vehicle in response to the outputs from the reference yaw rate generator means and the yaw rate detector. The yaw motion control device set forth above can also be employed with a vehicle speed detector for detecting the speed of the vehicle, and for outputting the vehicle speed to said reference yaw rate generator to provide greater accuracy in controlling the yaw motion of the vehicle.

    摘要翻译: 用于车辆的偏航运动控制装置包括用于检测车辆的方向盘的转向角的转向角传感器和可操作地连接到转向角传感器的转向角存储装置,用于至少存储转向角的先前值。 参考横摆率发生器响应于来自转向角存储器的输入产生参考横摆角速度,并且横摆率检测器检测车辆的横摆角速度。 此外,偏航运动校正器响应于来自基准横摆率发生器装置和横摆率检测器的输出来控制车辆的偏航运动。 上述的偏航运动控制装置也可以与用于检测车辆速度的车速检测器一起使用,并且用于将车速输出到所述参考横摆率发生器,以提供更高的控制车辆的偏航运动的精度。

    Driving force control system in vehicle
    7.
    发明授权
    Driving force control system in vehicle 失效
    车辆驱动力控制系统

    公开(公告)号:US5575350A

    公开(公告)日:1996-11-19

    申请号:US405241

    申请日:1995-03-17

    摘要: A system is provided to prevent suspension judder from being generated at the start of a vehicle which includes a traction control system. If the starting of the vehicle is detected based on driving-wheel speeds RL and RR, a shift position and an accelerator opening degree .theta.th1, an initial torque TQ2 and a delay time are map-searched based on the accelerator opening degree .theta.th1 and a steering angle .theta.st. The driving force for driven wheels is limited to the initial torque TQ2, until a delay time from the starting of the vehicle has elapsed, to prevent the generation of suspension judder. When the delay time has elapsed, an accelerating increment torque TQ3 is map-searched based on the accelerator opening degree .theta.th1 and the steering angle .theta.st, and is added to the initial torque TQ2, thereby ensuring the accelerating performance of the vehicle.

    摘要翻译: 提供一种系统以防止在包括牵引力控制系统的车辆的起动时产生悬架抖动。 如果基于驾驶轮速度RL和RR检测到车辆的起动,则基于加速器开度θth1和/或者基于加速器开度θth1对起始位置和加速器开度θth1,初始扭矩TQ2和延迟时间进行地图搜索, 转向角θst。 驱动轮的驱动力限于初始转矩TQ2,直到从车辆启动起的延迟时间过去,以防止产生悬架抖动。 当延迟时间已经过去时,基于加速器开度θth1和转向角θst对加速增量扭矩TQ3进行地图搜索,并将其加到初始转矩TQ2上,从而确保车辆的加速性能。

    Device for detecting a bad road from a moving vehicle
    9.
    发明授权
    Device for detecting a bad road from a moving vehicle 失效
    用于检测来自移动车辆的恶劣道路的装置

    公开(公告)号:US4912967A

    公开(公告)日:1990-04-03

    申请号:US181948

    申请日:1988-04-15

    摘要: A device for detecting a bad or bumpy road from a moving vehicle includes a plurality of wheel speed detectors for detecting the corresponding wheel speeds of a plurality of different wheels, an arithmetic circuit for calculating a difference between values detected in the individual wheel speed detectors, a filter, receiving outputs from the arithmetic circuit, for processing only components in a predetermined frequency band, and a determination circuit for determining if a vehicle is travelling on a bad road based on outputs from the filter. The device easily detects a bad road from a moving vehicle on the basis of outputs from said wheel speed detectors, without being affected by instantaneous variations in the wheel speeds.

    摘要翻译: 用于检测来自移动车辆的不良或颠簸路的装置包括:多个车轮速度检测器,用于检测多个不同车轮的相应车轮速度,运算电路,用于计算在各个车轮速度检测器中检测到的值之间的差异, 接收来自运算电路的输出的滤波器,仅用于处理预定频带中的分量;以及确定电路,用于根据来自滤波器的输出来确定车辆是否在恶劣道路上行驶。 该装置根据来自所述车轮速度检测器的输出,容易地检测来自移动车辆的不良道路,而不受轮速的瞬时变化的影响。

    Wheel speed correcting system
    10.
    发明授权
    Wheel speed correcting system 失效
    车轮速度校正系统

    公开(公告)号:US5725067A

    公开(公告)日:1998-03-10

    申请号:US611782

    申请日:1996-03-08

    摘要: When a steady straight advancing state presuming device presumes that the vehicle is in a steady straight advancing state, and a slip rate calculating device calculates a small slip rate, based on an output from a driving-state detecting device, or when the steady straight advancing state presuming device presumes that the vehicle is in the steady straight advancing state, and a driven wheel torque calculating device calculates a small driven wheel torque, based on the output from the driving-state detecting device, a correction execution determining device determines that the vehicle is in a stable state suitable for correcting the wheel speed. By a command from the correction execution determining device, a correcting device corrects the driven wheel speed or the follower wheel speed based on a speed ratio of the driven wheel speed to the follower wheel speed calculated by a speed ratio calculating device. Thus, when a different-diameter tire has been mounted on a wheel, it is possible to precisely correct the wheel speed without being influenced by the slipping of the driven wheels or by the turning of the vehicle.

    摘要翻译: 当稳定的直进状态推定装置假设车辆处于稳定的直线进给状态时,滑移率计算装置基于来自驾驶状态检测装置的输出,或者当稳定的直行进 状态推定装置假设车辆处于稳定的直线行进状态,并且从动轮转矩计算装置基于来自驾驶状态检测装置的输出来计算小的从动轮转矩,校正执行确定装置确定车辆 处于适合于修正车轮速度的稳定状态。 通过来自校正执行判定装置的命令,校正装置基于由速比计算装置计算的从动轮速度与从动轮速度的速比来校正从动轮速度或从动轮速度。 因此,当将不同直径的轮胎安装在车轮上时,可以精确地校正车轮速度,而不受驱动轮的滑动或车辆的转动的影响。