In a drive unit including a motor (32), an inverter (34), a first electric storage device (36), a step up-down converter (40), a first capacitor (46) and a second capacitor (48), a DC-DC converter (54), and a relay (SMR), the DC-DC converter (54) is driven when the relay (SMR) is turned off to discharge charge of the first capacitor (46) and the second capacitor (48), while a target duty ratio of the step up-down converter (40) is set so that a total loss of the step up-down converter (40) and the DC-DC converter (54) becomes greater than a maximum loss value of the step up-down converter (40) so as to control the step up-down converter (40). According to the present invention, the time required for discharging the charges of the first capacitor and the second capacitor can be shortened.

    모터(32)와 인버터(34)와 제1 축전 장치(36)와 승강압 컨버터(40)와 제1 콘덴서(46), 제2 콘덴서(48)와 DC-DC 컨버터(54)와 릴레이(SMR)를 구비하는 구동 장치에 있어서, 릴레이(SMR)를 오프로 하여 제1 콘덴서(46), 제2 콘덴서(48)의 전하를 방전시킬 때에는, DC-DC 컨버터(54)를 구동함과 함께 승강압 컨버터(40) 및 DC-DC 컨버터(54)의 합계 손실이 승강압 컨버터(40)의 손실의 최댓값보다도 커지도록 승강압 컨버터(40)의 목표 듀티비를 설정하여 승강압 컨버터(40)를 제어한다.


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    Titel :

    DRIVE UNIT VEHICLE AND CONTROL METHOD FOR DRIVE UNIT


    Weitere Titelangaben:

    구동 장치, 자동차 및 구동 장치를 위한 제어 방법


    Beteiligte:
    ONO TOSHIKAZU (Autor:in)

    Erscheinungsdatum :

    05.07.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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