The invention relates to an electric control hydraulic driving system for an industrial vehicle. Only one electromotor and one microcomputer controller are used for driving a variable pump to conduct frequency control so as to convey hydraulic oil in a hydraulic oil tank to a travelling mechanism, an inclining mechanism, a lifting mechanism, a steering mechanism, a kinetic energy recycling mechanism, a potential energy recycling mechanism and a travelling speed limiting mechanism; kinetic energy recycle, overload potential energy recycle, and no-load and light-load unloading can be realized while the vehicle realizes actions of travelling, inclining, lifting and steering; through the adoption of the travelling speed limiting mechanism, the vehicle speed can be limited, and the vehicle travelling can be stable; during slope sliding and braking, the hydraulic system can automatically supply oil; during slope climbing of the vehicle, the variable pump automatically varies according to the load pressure set value to achieve the low-speed large-torque slope climbing function, and the slope climbing current is low. The electromotor consists of a permanent-magnet brushless motor, an inverter controller and a variable piston pump; zero current start to a load current is realized, the starting time is within the millimeter-level range, large current starting can be avoided, and energy can be saved.


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    Titel :

    Electric control hydraulic driving system for industrial vehicle


    Beteiligte:
    PENG CHANGZONG (Autor:in) / XIAO ZIYUAN (Autor:in) / CHEN SHUGUO (Autor:in)

    Erscheinungsdatum :

    30.12.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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