System and method for reducing stopping distance and improving traction in motor vehicles

    公开(公告)号:US06663113B2

    公开(公告)日:2003-12-16

    申请号:US09989356

    申请日:2001-11-20

    IPC分类号: B60G8100

    摘要: A method for improving the traction between a road surface and a motor vehicle having a pair of front wheels and a pair of rear wheels which engage the road, each front wheel mounted on a front axle, each rear wheel mounted on a rear axle, one of the axles being a driven axle, and a two-part undercarriage roll stabilizer system including a front and a rear undercarriage stabilizer, each the undercarriage stabilizer comprising an actuating drive operatively coupled to a the pair of wheels, and for reducing the stopping distance along the road in which the motor vehicle can be stopped. The method includes: determining a coefficient of friction between at least two wheels and the road surface; comparing the coefficients of friction; and tensioning the actuating drives diagonally, the wheel contact forces between diagonally opposite wheels and the road surface thereby being one of increased and decreased in response to the determined coefficient of friction between a wheel and the road surface. Also, a system for carrying out this method in a motor vehicle.

    Method and device for determining an unstable driving condition of a motor vehicle
    4.
    发明授权
    Method and device for determining an unstable driving condition of a motor vehicle 有权
    用于确定机动车辆的不稳定驾驶状况的方法和装置

    公开(公告)号:US06519523B2

    公开(公告)日:2003-02-11

    申请号:US09728339

    申请日:2000-12-01

    IPC分类号: G01P1500

    摘要: A method and a device in which, during the cornering of a motor vehicle, a rating factor is determined by comparing a computed lateral acceleration with a measured lateral acceleration. The lateral acceleration is measured, for example, using an acceleration sensor or corresponding yaw-rate sensor. The computed lateral acceleration is calculated via the steering angle and the road speed. A weighted rating factor generated from the difference signal is a measure of the stable or unstable driving condition of the motor vehicle. This rating factor can be either displayed or supplied to an additional control unit, for example an automatic transmission, a suspension control system or an engine management system.

    摘要翻译: 一种方法和装置,其中在机动车辆的转弯期间,通过将计算出的横向加速度与所测量的横向加速度进行比较来确定额定系数。 例如,使用加速度传感器或相应的偏航速率传感器来测量横向加速度。 计算出的横向加速度是通过转向角和道路速度来计算的。 从差分信号产生的加权评级因数是衡量汽车的稳定或不稳定的驾驶状况。 该额定系数可以显示或提供给附加控制单元,例如自动变速器,悬架控制系统或发动机管理系统。