The invention discloses a steering control method of a drive-by-wire hydraulic steering system of a rear axle of a multi-axle steering vehicle, the drive-by-wire hydraulic steering system mainly comprises a hydraulic module and an electronic control module, a control module ECU in the electronic control module collects sensor signals in the drive-by-wire hydraulic steering system; by collecting sensor information and a set control algorithm, the control module ECU outputs a voltage signal to indirectly drive the centering self-locking oil cylinder to push or pull back the steering tie rod, or enables the steering tie rod to be kept in a certain state so as to change the turning angle of the wheels, and then steering control over the tires is achieved; the steering wear resistance of the third shaft and the operation stability of the whole vehicle are improved; when the steer-by-wire system breaks down, the third shaft steering wheel is controlled to be in the centering locking state and does not change along with the change of the first shaft rotation angle, and therefore the safety of the vehicle is guaranteed.

    本发明公开了一种多轴转向车辆后轴的线控液压转向系统的转向控制方法,该线控转向系统主要包括液压模块和电子控制模块,其中,电子控制模块中的控制模块ECU采集线控液压转向系统中的传感器信号;并通过采集传感器信息以及设定的控制算法,控制模块ECU输出电压信号间接驱动对中自锁油缸推动、拉回转向横拉杆,或者使转向横拉杆保持在某一状态,以改变车轮的转角,进而实现轮胎的转向控制,改善和提升第三轴转向耐磨性能和整车操稳性能;当线控转向系统出现故障时,第三轴转向轮被控制处于对中锁死状态不再随着第一轴转角变化而发生变化,以保证车辆的安全。


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    Title :

    Steering control method of drive-by-wire hydraulic steering system of rear axle of multi-axle steering vehicle


    Additional title:

    多轴转向车辆后轴的线控液压转向系统的转向控制方法


    Contributors:
    LIU JUN (author) / SHI CHAOHUAN (author)

    Publication date :

    2023-09-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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