The invention relates to the technical field of hydraulic systems, and provides a hydraulic control system, a control method and an operation machine. In the hydraulic control system, the steering oil cylinder is connected with an oil source through a control valve. The control valve can be switched between a steering position and a cut-off position. At the steering position, the oil source is communicated with the steering oil cylinder; and at the cut-off position, the oil source is cut off from the steering oil cylinder. The angle detection module is used for detecting the actual angle deviation between the steering angle and the aligning angle of the wheel assembly. The timing module is connected with the angle detection module so as to detect the holding duration of each actual angle deviation. The control module is connected with the angle detection module, the timing module and the control valve so as to control the working position of the control valve based on detection results of the angle detection module and the timing module. Therefore, forward steering, reverse aligning and centering locking actions of the wheel assembly are controlled by the same group of steering oil cylinders and control valves. Compared with the prior art, the hydraulic control system is small in occupied space and low in cost.

    本发明涉及液压系统技术领域,提供了一种液压控制系统、控制方法及作业机械。在液压控制系统中,转向油缸通过控制阀与油源连接。控制阀能够在转向位和截止位之间转换。在转向位时,油源与转向油缸连通;在截止位时,油源与转向油缸截止。角度检测模块用于检测车轮组件的转向角度与回正角度之间的实际角度偏差。计时模块与角度检测模块连接,以检测各实际角度偏差的保持时长。控制模块与角度检测模块、计时模块及控制阀连接,以基于角度检测模块及计时模块的检测结果,控制控制阀的工作位。由此,使车轮组件的正向转向、反向回正及对中锁止动作均由同一组转向油缸及控制阀控制实现。与现有技术相比,该液压控制系统所占用空间的较小,且成本较低。


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    Title :

    Hydraulic control system, control method, and work machine


    Additional title:

    液压控制系统、控制方法及作业机械


    Contributors:
    TIAN YINGYING (author) / ZHOU LIYUN (author) / ZHONG YICHENG (author)

    Publication date :

    2023-05-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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