The invention relates to the technical field of engineering machinery, in particular to a vehicle running steering control method and system and a crane. The vehicle running steering control method comprises the steps that according to operation of a driver, an operation instruction and a vehicle steering state are obtained; according to the vehicle steering state, whether an axle lifting instruction is output or not is judged; if the axle lifting instruction is output, the steering proportionality coefficient of the tire on each electric control steering shaft is obtained again according to the operation instruction; otherwise, the operation instruction and the vehicle steering state are obtained again; and axle lifting is executed according to the axle lifting instruction until axle lifting is completed, and driving steering is executed according to the operation instruction and the steering proportionality coefficient of the tires on the electric control steering shafts. According to the vehicle running steering control method and system and the crane, the turning radius of the vehicle can be further reduced under the condition that the maximum turning angle of the tire is limited, and the trafficability and transition performance of the vehicle are improved.

    本发明涉及工程机械技术领域,具体是一种车辆行驶转向控制方法、系统及起重机,一种车辆行驶转向控制方法,包括:根据驾驶员操作,获取操作指令和车辆转向状态;根据车辆转向状态,判断是否输出提桥指令;若输出提桥指令,则根据操作指令,重新获取各电控转向轴上轮胎的转向比例系数;否则,重新获取操作指令和车辆转向状态;根据提桥指令执行提桥,直至提桥完成为止,根据操作指令和各电控转向轴上轮胎的转向比例系数,执行行驶转向。该车辆行驶转向控制方法、系统及起重机能够在轮胎最大转角受限的情况下进一步地减小车辆的转弯半径,提高车辆的通过能力和转场性能。


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    Title :

    Vehicle running steering control method and system and crane


    Additional title:

    一种车辆行驶转向控制方法、系统及起重机


    Contributors:
    ZHAO LIUFU (author) / YANG FENGLING (author) / MA FEI (author) / LIU GUICHANG (author)

    Publication date :

    2024-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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