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    • 4. 发明授权
    • Method and apparatus for four wheel steering control utilizing tire
characteristics
    • 利用轮胎特性的四轮转向控制方法和装置
    • US5402341A
    • 1995-03-28
    • US866771
    • 1992-04-06
    • Michael K. LiubakkaLenard J. DuchnowskiThomas G. Reichenbach
    • Michael K. LiubakkaLenard J. DuchnowskiThomas G. Reichenbach
    • B62D7/15B62D5/04
    • B62D7/159
    • A method and system is provided for improving vehicle handling during vehicle operation in the nonlinear region of the front tires for use with a vehicle (10) having manually operable front steerable wheels (12) and electronically controlled rear steerable wheels (14). The method includes the step of calculating a desired rear steer angle based on vehicle parameters, such as vehicle speed and front wheel angle. Preferably, the method also includes the steps of determining if the vehicle is operating in the nonlinear region of the front tires, calculating a handling term if the vehicle is operating in the nonlinear region of the front tires and modifying the desired rear steer angle based on the handling term. The rear steerable wheels are then steered toward the modified desired rear steer angle.
    • 提供了一种方法和系统,用于改进在前轮胎的非线性区域中的车辆操作期间的车辆处理,该前轮胎与具有手动操作的前导向轮(12)和电子控制的后可转向轮(14)的车辆(10)一起使用。 该方法包括基于诸如车辆速度和前轮角度的车辆参数来计算期望的后转向角度的步骤。 优选地,该方法还包括以下步骤:确定车辆是否在前轮胎的非线性区域中操作,如果车辆在前轮胎的非线性区域中操作并且基于以下方式修改期望的后转向角度,则计算处理项: 处理期限。 然后,后转向轮转向改进的所需后转向角。