Vehicle chassis control with coordinated brake and steering control on split coefficient surface
    6.
    发明授权
    Vehicle chassis control with coordinated brake and steering control on split coefficient surface 有权
    车辆底盘控制,具有协调的制动和转向控制分裂系数表面

    公开(公告)号:US06681167B2

    公开(公告)日:2004-01-20

    申请号:US10164321

    申请日:2002-06-04

    IPC分类号: G06F1700

    摘要: A vehicle chassis control stores first and second calibrated values of a predetermined braking parameter and a steering correction parameter. The control includes apparatus for detecting a split coefficient condition with respect to the road surface; and, when it does and a braking signal is present, the control actuates braking apparatus for a wheel on the side of the vehicle having the higher coefficient of friction with the first calibrated value of the predetermined braking parameter and simultaneously actuates the steering apparatus with a steering correction to compensate for yaw induced by braking on the split coefficient road surface. If the steering correction is not available, however, the braking apparatus is actuated for the wheel having the higher coefficient of friction with the second calibrated value of the predetermined braking parameter without simultaneously actuating the steering apparatus with the steering correction. The steering correction may have an open loop part derived from a difference between wheel slips of two wheels on opposite sides of the vehicle and/or a closed loop part derived from yaw rate, side slip and/or side slip rate error.

    摘要翻译: 车辆底盘控制器存储预定制动参数和转向校正参数的第一和第二校准值。 该控制装置包括用于检测相对于路面的分裂系数条件的装置; 并且当其存在并且存在制动信号时,所述控制致动具有与所述预定制动参数的第一校准值相比具有较高摩擦系数的车辆侧的车轮的制动装置,并且同时致动所述转向装置 转向补偿以补偿由分裂系数路面上的制动引起的偏航。 然而,如果转向矫正不可用,则制动装置对于具有较高摩擦系数的车轮与具有预定制动参数的第二校准值而被致动,而不用转向校正同时致动转向装置。 转向校正可以具有从车辆相对侧上的两个车轮的车轮滑移之间的差导出的开环部分和/或由偏航率,侧滑和/或侧滑率误差导出的闭环部分。

    Vehicle chassis control
    7.
    发明授权
    Vehicle chassis control 失效
    车辆底盘控制

    公开(公告)号:US5696677A

    公开(公告)日:1997-12-09

    申请号:US547084

    申请日:1995-10-23

    摘要: A vehicle chassis system control according to the steps of: determining relative velocity between a corner of a vehicle body and a vehicle wheel responsive to a sensor signal from one of: (i) a relative position sensor mounted between the vehicle body corner and the vehicle wheel and (ii) a wheel rotational velocity sensor mounted to the wheel; estimating, responsive to the sensor signal, a body acceleration signal indicative of a vertical acceleration of the corner of the vehicle body; estimating, responsive to the sensor signal, a wheel acceleration signal indicative of a vertical acceleration of the vehicle wheel; estimating a dynamic normal force between the wheel and a road surface responsive to the estimated body and wheel accelerations; and providing the estimated normal dynamic force to a chassis system controller, wherein a chassis system actuator is controlled by a control command determined responsive to the estimated dynamic normal force.

    摘要翻译: 根据以下步骤的车辆底盘系统控制:响应于传感器信号,确定车身的角部与车辆车轮之间的相对速度,其中:以下之一:(i)安装在车身拐角和车辆之间的相对位置传感器 轮和(ii)安装到车轮的轮转速传感器; 响应于所述传感器信号,估计指示所述车身拐角的垂直加速度的身体加速度信号; 响应于所述传感器信号估计指示所述车轮的垂直加速度的车轮加速度信号; 响应于估计的身体和车轮加速度估计车轮和路面之间的动态法向力; 以及向所述机箱系统控制器提供估计的正常动态力,其中,通过响应于估计的动态法向力确定的控制命令来控制底盘系统致动器。