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    • 72. 发明公开
    • END-OF-TRAVEL IMPACT MANAGEMENT SYSTEM
    • 系统ZUR VERWALTUNG DES ENDPUNKTSCHLAGES
    • EP1216438A4
    • 2003-03-26
    • EP00963569
    • 2000-09-18
    • DELPHI TECH INC
    • TANKE EUGENE T II
    • B62D5/04G05B13/00
    • B62D5/0469
    • A system and method for controlling the collisions between elements of an automotive rack and pinion steering apparatus (100) and an end-of-travel stop is presented. The system comprises a sensor (200) for sensing a set of dynamic variable of the rack and pinion steering apparatus (100) and operative thereby to generate as output therefrom a first set of signals indicative of the set of dynamic variables; a controller (400) responsive to the first set of signals and operative thereby to provide as output therefrom a modified torque assist command; and a motor (300) drive assembly drive assembly responsive to the modified torque assist command and operative thereby to provide modified torque assistance to the rack and pinion steering apparatus (100). In another embodiment, the dynamic data is used to calculate a torque limit to be imposed upon the torque assist command whenever the steering system is close to end-of-stop. The two embodiments may also be superimposed. The invention reduces torque at end-of-travel impacts, and helps preserve the mechanical integrity of the power steering system.
    • 提出了一种用于控制汽车齿条和小齿轮转向装置(100)的元件与行程终点之间的碰撞的系统和方法。 该系统包括用于感测齿轮齿条转向装置(100)的一组动态变量的传感器(200),并且由此产生作为其输出的第一组信号,该第一组信号指示该组动态变量; 控制器(400),其响应于所述第一组信号,并且由此操作以提供修改的转矩辅助命令作为其输出; 以及响应于所述改进的扭矩辅助指令的马达(300)驱动组件驱动组件,从而对所述齿条和小齿轮转向装置(100)提供修改的扭矩辅助。 在另一个实施例中,只要转向系统接近停止终点,动态数据用于计算要施加在转矩辅助指令上的转矩极限。 两个实施例也可以叠加。 本发明减少了行程结束冲击时的扭矩,并有助于保持动力转向系统的机械完整性。