Steering control system
    2.
    发明授权
    Steering control system 失效
    转向控制系统

    公开(公告)号:US4736811A

    公开(公告)日:1988-04-12

    申请号:US052946

    申请日:1987-05-22

    IPC分类号: B62D5/09 B62D5/32 B62D5/08

    CPC分类号: B62D5/32

    摘要: The steering system of some lightweight vehicles are electronically controlled and have a manually operated mechanical control as a backup. Such manual backup control would not be adequate for large earthmoving, construction and industrial type vehicles. The subject steering system includes an electrically controlled circuit actuated by rotation of a steering wheel for controlling a main pilot operated steering valve as the primary steering control. A hydraulic control circuit is also actuated by rotation of the steering wheel for controlling the same steering valve as a backup control when the electrically controlled circuit is not active. The hydraulic steering circuit is disabled when the electrically controlled circuit is activated. By using the same steering valve as an integral part of both circuits, the complexity and cost of the overall steering control system is reduced.

    摘要翻译: 一些轻型车辆的转向系统是电子控制的,并具有手动操作的机械控制作为备用。 这种手动备用控制对于大型土方工程,建筑和工业型车辆来说是不够的。 主转向系统包括由控制主导向操作的转向阀作为主转向控制的方向盘的旋转致动的电控制回路。 当电控电路不活动时,液压控制回路也通过方向盘的旋转而被驱动,用于控制与备用控制相同的转向阀。 当电气控制电路被激活时,液压转向回路被禁用。 通过使用相同的转向阀作为两个回路的组成部分,整体转向控制系统的复杂性和成本降低。