To provide a power unit of an electric vehicle capable of operating a main controller and a high voltage contactor by an external small power supply even when a battery for an auxiliary machine cannot operate the high voltage contactor due to overdischarge.SOLUTION: A sub-controller of a power unit of an electric vehicle causes a low voltage contactor to block a battery for an auxiliary machine, operates a low voltage converter, and operates a main controller after causing a capacitor to store electric charge for operating the main controller and a high voltage contactor, on the other hand, the main controller operates a high voltage converter after causing the high voltage contactor to connect a battery for drive with the high voltage contactor when an external small power supply is connected with a terminal.SELECTED DRAWING: Figure 1

    【課題】補機用バッテリが過放電によって高電圧コンタクタを動作させることができない場合であっても、外部小規模電源によってメインコントローラ及び高電圧コンタクタを動作させることを可能にできる電動車両の電源装置を提供する。【解決手段】電動車両の電源装置のサブコントローラは、端子に外部小規模電源が接続された場合に、低電圧コンタクタに補機用バッテリを遮断させるとともに、低電圧コンバータを動作させ、キャパシタにメインコントローラ及び高電圧コンタクタを動作させるための電荷を蓄電させた後、メインコントローラを動作させる一方、メインコントローラは、高電圧コンタクタに駆動用バッテリを高電圧コンバータに接続させた後、高電圧コンバータを動作させる。【選択図】 図1


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    Title :

    POWER UNIT OF ELECTRIC VEHICLE


    Additional title:

    電動車両の電源装置


    Contributors:

    Publication date :

    2019-10-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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