An object of the present invention is to improve startability of an engine. An industrial vehicle comprises: a hydraulic pressure source; a control valve for controlling a flow of a pressure oil discharged from the hydraulic pressure source, and converting a lock-up clutch into one between an engagement state and a disengagement state; an engine start device for starting the engine when a start of the engine is instructed by an instruction device. A control device comprises: a low temperature state determination portion instructed to operate a power device by the instruction device, and determining whether a temperature state of a work fluid of a torque converter is a low temperature state when the power device is operated; and a clutch control portion for controlling the control valve to convert the lock-up clutch into the disengagement state when the temperature state of the work fluid is determined not to be the low temperature state by the low temperature state determination portion, and controlling the control valve to convert the lock-up clutch into the engagement state when the temperature state of the work fluid is determined to be the low temperature state by the low temperature state determination portion.

    (과제) 엔진의 시동성을 향상시킨다. (해결 수단) 작업 차량은, 유압원과, 유압원으로부터 토출되는 압유의 흐름을 제어하고, 록업 클러치를 계합 상태 및 비계합 상태 중 어느 하나의 상태로 전환하는 제어 밸브와, 지시 장치에 의해 엔진의 시동이 지시되면, 엔진을 시동시키는 엔진 시동 장치를 구비하고, 제어 장치는, 지시 장치에 의해 전원 장치의 기동이 지시되고, 전원 장치가 기동되면, 토크 컨버터의 작동 유체의 온도 상태가 저온 상태인지 여부를 판정하는 저온 상태 판정부와, 저온 상태 판정부에 의해 작동 유체의 온도 상태가 저온 상태가 아니라고 판정되면, 록업 클러치를 비계합 상태로 하기 위해 제어 밸브를 제어하고, 저온 상태 판정부에 의해 작동 유체의 온도 상태가 저온 상태라고 판정되면, 록업 클러치를 계합 상태로 하기 위해 제어 밸브를 제어하는 클러치 제어부를 가지고 있다.


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    Title :

    INDUSTRIAL VEHICLE


    Additional title:

    작업 차량


    Contributors:

    Publication date :

    2018-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    E02F Baggern , DREDGING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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