건설기계의 제어 시스템은 제1 유압 펌프, 상기 제1 유압 펌프로부터 토출된 작동유에 의해 동작 가능한 제1 및 제2 액추에이터들, 내부에 구비된 스풀의 변위량에 따라 상기 제1 및 제2 액추에이터들의 동작을 각각 제어하기 위한 제1 및 제2 제어 밸브들, 입력된 제어 신호에 따라 상기 제1 제어 밸브의 스풀의 변위량을 제어하기 위한 파일럿 신호압을 상기 제1 제어 밸브의 스풀에 공급하는 제1 스풀 변위 조정 밸브, 및 작업자의 조작 신호에 따라 상기 제1 스풀 변위 조정 밸브에 상기 제어 신호를 출력하고 상기 제1 액추에이터가 자중에 의한 단독 또는 복합 동작을 수행할 때 상기 제1 액추에이터로 공급되는 작동유 유량에 따라 상기 제1 제어 밸브의 스풀 변위량을 조정하는 제어부를 포함한다.

    A control system for construction machinery includes a first hydraulic pump (100), first and second actuators (20) connected to the first hydraulic pump through first and second hydraulic lines (220,222) respectively and operable by a working oil discharged from the first hydraulic pump, first and second control valves (320,322) installed in the first and second hydraulic lines respectively and configured to control operations of the first and second actuators, a first spool displacement adjusting valve (420) supplying a pilot signal pressure to a spool of the first control valve (320) in proportion to an inputted control signal to control a displacement amount of the spool of the first control valve, and a controller (500) configured to output the control signal to the first spool displacement adjusting valve (420) corresponding to a manipulation signal (600) of an operator, and configured to adjust a spool displacement amount of the first control valve (320) according to an amount of the working oil to be supplied to the first actuator (20) when the first actuator performs a single or multiple operation by self-load.


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    Title :

    CONTORL SYSTEM FOR CONSTRUCTION MACHINERY AND CONTROL METHOD FOR CONSTRUCTION MACHINERY


    Additional title:

    건설기계의 제어 시스템 및 건설기계의 제어 방법


    Publication date :

    2024-11-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / 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 / E02F Baggern , DREDGING



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