The invention discloses an engineering machinery hydraulic system control method and system and electric engineering machinery, and relates to the technical field of cranes. According to the method, after an operation signal of a control component which generates a signal used for controlling the action of the engineering machine when triggered is obtained, the state of the engineering machine is detected based on the operation signal, and when the engineering machine is in a first target state in which a pre-executed action is a combined action, the rotating speed of a motor of the engineering machine is controlled to be a first preset rotating speed; and the current value input into the first proportional reversing valve is controlled not to exceed the preset current value, and the first proportional reversing valve is used for executing the low-load action of the engineering machinery. Therefore, by associating the rotating speed of the motor of the engineering machinery and the valve element opening of the proportional reversing valve with the operation signal of the control component, flexible control over the operation speed of the engineering machinery is achieved, the phenomenon that combined actions are not coordinated is effectively avoided, and the operation experience of a user is improved.

    本申请公开了一种工程机械液压系统控制方法、系统及电动工程机械,涉及起重机技术领域。该方法在获取被触发时产生用于控制工程机械动作的信号的操控部件的操作信号后,基于操作信号,检测工程机械的状态,并在工程机械处于预执行的动作为组合动作的第一目标状态时,控制工程机械的电机转速为第一预设转速,以及控制输入第一比例换向阀的电流值不超过预设电流值,第一比例换向阀为用于执行工程机械的低负载动作的比例换向阀。从而通过将工程机械的电机转速以及比例换向阀的阀芯开口与操控部件的操作信号相关联,实现了对工程机械作业速度的灵活控制,并有效避免了出现组合动作不协调的现象,提高了用户操纵体验。


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    Title :

    Engineering machinery hydraulic system control method and system and electric engineering machinery


    Additional title:

    一种工程机械液压系统控制方法、系统及电动工程机械


    Contributors:
    HUANG MENG (author) / TANG SAI (author) / HE JINJUN (author)

    Publication date :

    2024-11-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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