The invention discloses a four-wheel steering hydraulic control system and method. The control system comprises a front axle steering oil cylinder, a rear axle steering oil cylinder and a four-wheel steering switching valve. The front axle steering oil cylinder and the rear axle steering oil cylinder are connected with the four-wheel steering switching valve through hydraulic oil pipelines. Signal feedback plates are arranged on piston rods of the front axle steering oil cylinder and the rear axle steering oil cylinder, proximity switches are arranged nearby the signal feedback plates, and the proximity switches are electrically connected with the controller. The four-wheel steering switching valve is also electrically connected with the controller; according to the four-wheel steering hydraulic control system, the signal feedback plates are arranged on the piston rods of the front axle steering oil cylinder and the rear axle steering oil cylinder, and the signal feedback plates feed back neutral position signals to the proximity switches to achieve control over four-wheel steering. A plurality of sensors, a plurality of electromagnetic valves and other components do not need to be arranged, a steering control system is simplified, and cost is reduced.

    本发明公开了一种四轮转向液压控制系统及控制方法,所述控制系统包括前桥转向油缸、后桥转向油缸和四轮转向切换阀;所述前桥转向油缸和后桥转向油缸均通过液压油管路与四轮转向切换阀相连;所述前桥转向油缸和后桥转向油缸的活塞杆上均设置有信号反馈板,所述信号反馈板的附近设置接近开关,所述接近开关与控制器进行电连接;所述四轮转向切换阀也与控制器进行电连接;本发明提供的四轮转向液压控制系统,在前桥转向油缸和后桥转向油缸的活塞杆上设置信号反馈板,通过信号反馈板向接近开关反馈中位信号实现对四轮转向的控制,与现有的四轮转向控制系统相比,无需设置多个传感器、多个电磁阀等部件,简化了转向控制系统、降低了成本。


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    Title :

    Four-wheel steering hydraulic control system and control method


    Additional title:

    一种四轮转向液压控制系统及控制方法


    Contributors:
    WU QIONG (author) / QI GAOPIN (author) / ZHANG YU'E (author) / WANG ZHENGHANG (author) / JIN XIANGQIANG (author) / LIU SONGHAO (author) / LIU LE (author) / LI RUI (author)

    Publication date :

    2024-08-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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