The invention discloses a variable hydraulic pressure relief system and method for a material handling vehicle. A method for controlling a hydraulic control system that includes a variable pressure relief valve and may include steps for calibrating the hydraulic control system. The hydraulic control system may be calibrated by: controlling, with the controller, the variable pressure relief valve to move to a fully open position, increasing, with the pump, a fluid pressure upstream of the variable pressure relief valve, controlling, with the controller, the variable pressure relief valve to move from the fully open position toward a fully closed position by adjusting a control signal supplied to the variable pressure relief valve, monitoring, with the controller, the pressure detected by the pressure sensor, and recording, with the controller, a parameter of the control signal supplied to the variable pressure relief valve when the pressure detected by the pressure sensor reaches a target pressure.

    本申请公开了用于物料搬运车辆的可变液压卸压系统和方法。一种用于控制液压控制系统的方法,该方法包括可变卸压阀并且可以包括用于校准该液压控制系统的步骤。该液压控制系统可以通过以下方式校准:利用控制器,控制可变卸压阀移动到完全打开位置;利用泵,增加该可变卸压阀上游的流体压力;利用该控制器,通过调节供给该可变卸压阀的控制信号,控制该可变卸压阀从该完全打开位置朝向完全关闭位置移动;利用该控制器,监控由该压力传感器检测的压力;以及利用该控制器,当由该压力传感器检测的该压力达到目标压力时,记录供给该可变卸压阀的该控制信号的参数。


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    Titel :

    VARIABLE HYDRAULIC PRESSURE RELIEF SYSTEMS AND METHODS FOR A MATERIAL HANDLING VEHICLE


    Weitere Titelangaben:

    用于物料搬运车辆的可变液压卸压系统和方法


    Beteiligte:
    WEISS THOMAS R (Autor:in) / SMITH ERIC A (Autor:in)

    Erscheinungsdatum :

    2021-03-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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