엔진(1)과의 사이에서 토크의 전달을 행하는 전동·발전기(2)와, 엔진 및 전동·발전기 중 적어도 한쪽에 의해 구동되는 유압 펌프(3)와, 유압 펌프로부터 토출되는 압유에 의해 구동되는 유압 액추에이터(5)와, 전동·발전기에 전력을 공급하기 위한 축전 장치(10)와, 유압 펌프의 요구 동력을 만족하도록 엔진 및 전동·발전기의 목표 동력을 설정하는 컨트롤러(8)를 구비하고, 컨트롤러는, 축전 장치의 축전 잔량의 감소에 따라, 엔진의 목표 동력이 단조 증가하도록 설정한다. 이에 의해, 연료 소비량 및 배출 가스의 삭감을 도모하면서도, 작업자의 조작 필링을 양호하게 유지할 수 있다.

    A hybrid construction machine comprises: a motor generator (2) which exchanges torque with an engine (1); a hydraulic pump (3) which is driven by at least one of the engine and the motor generator; a hydraulic actuator (5) which is driven by hydraulic fluid delivered from the hydraulic pump; an electrical storage device (10) for supplying electric power to the motor generator; and a controller (8) which sets target power of the engine and target power of the motor generator so as to satisfy demanded power of the hydraulic pump. The controller makes the setting so that the target power of the engine monotonically increases with the decrease in the remaining electric amount of the electrical storage device. With this configuration, the operator's operational feel can be kept excellent while also achieving reduction in fuel consumption and gas emission.


    Access

    Download


    Export, share and cite



    Title :

    HYBRID CONSTRUCTION MACHINERY


    Additional title:

    하이브리드식 건설 기계


    Publication date :

    2017-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    E02F Baggern , DREDGING / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



    HYBRID CONSTRUCTION MACHINERY

    European Patent Office | 2018

    Free access

    Hybrid Construction Machinery

    TAKAHASHI CHIAKI / IMURA SHINYA / TAKEUCHI KEN et al. | European Patent Office | 2017

    Free access

    Hybrid construction machinery

    ISHIHARA SHINJI / HOSHINO MASATOSHI | European Patent Office | 2017

    Free access

    HYBRID CONSTRUCTION MACHINERY

    IZUMI SHIHO / ISHIKAWA KOUJI / IMURA SHINYA et al. | European Patent Office | 2016

    Free access

    HYBRID CONSTRUCTION MACHINERY

    TAKAHASHI CHIAKI / IMURA SHINYA / TAKEUCHI KEN et al. | European Patent Office | 2017

    Free access