The present invention relates to a hydraulic control system for an electric forklift that controls the operations of a steering device, a work device, and a traveling device by hydraulic pressure, comprising: at least one hydraulic power source consisting of a drive motor and a hydraulic pump to generate hydraulic oil; a valve unit located between the hydraulic power source, the steering device, the work device, and the traveling device and composed of valves to divide and supply the hydraulic oil generated from the hydraulic power source to the devices and control the supply flow rate; and a controller that controls the operation of the hydraulic power source, steering device, work device, traveling device, and valve unit, thereby capable of controlling the operation of the steering device, work device, and traveling device by hydraulic pressure at low cost and high efficiency.

    본 발명은 유압에 의해 조향장치, 작업장치 및 주행장치의 작동을 모두 제어하는 전동 지게차의 유압 제어시스템에 관한 것으로, 구동모터와 유압펌프로 구성되어 작동유를 생성하는 적어도 하나 이상의 유압 동력원; 유압 동력원과 조향장치, 작업장치 및 주행장치 사이에 위치되어 유압 동력원에서 생성되는 작동유를 장치들로 나누어 공급하고 공급 유량을 제어하도록 밸브들로 구성되는 밸브유닛; 및 유압 동력원, 조향장치, 작업장치, 주행장치 및 밸브유닛의 작동을 제어하는 컨트롤러;를 포함한다.


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    Title :

    Hydraulic control system of electric forklift


    Additional title:

    전동 지게차의 유압 제어시스템


    Contributors:
    YI JUNIL (author)

    Publication date :

    2023-10-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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 / B62D MOTOR VEHICLES , Motorfahrzeuge / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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