The invention provides a front axle steering method of a 4X4 electromechanical liquid all-wheel steering system. The method is characterized in that a driver turns a steering wheel, and a steering angle signal of the steering wheel is sent to a steering controller; and a control system makes a two-position two-way electromagnetic valve be powered off according to a ''front axle steering'' controlstrategy, and meanwhile makes a first connector P and a second connector T in a rear axle steering integrated valve set be unblocked so that an unlocking oil cylinder is unloaded, an unlocking springdrives a mechanical lock to complete locking and be in a locked state, and a rear axle is ensured to be located in the middle and does not participate in steering. The front axle steering method of the 4X4 electromechanical liquid all-wheel steering system has safe and reliable performance, safety and stability of the system are greatly improved, and a system design is stable and reliable.

    本发明提供了一种4X4机电液全轮转向系统的前桥转向方法,其特征在于,驾驶员转动方向盘,方向盘的转角信号发送到转向控制器,控制系统根据“前桥转向”控制策略,控制两位两通电磁阀阀断电,同时控制后桥转向集成阀组内第一接口P和第二接口T油路畅通,目的在于将解锁油缸卸荷,解锁弹簧带动机械锁完成落锁,处于锁死状态,保证后桥处在中位不参与转向。本发明提供一种4X4机电液全轮转向系统的前桥转向方法,具有安全可靠的性能,大大提高了系统的安全性和稳定性,系统设计稳定可靠。


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    Title :

    Front axle steering method and steering system


    Additional title:

    一种前桥转向方法及转向系统


    Contributors:
    FAN JING (author) / WANG CHENGLING (author) / LI YU (author) / LIU FUQIANG (author) / LIU HAITAO (author) / ZHANG YONG (author)

    Publication date :

    2020-09-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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