A power supply system including: a driving motor capable of outputting power for driving a driving wheel; a main battery that stores electricity to be supplied to the driving motor; an engine capable of outputting power for driving the driving wheel; a starter motor that starts the engine; an auxiliary battery that stores electricity to be supplied to the starter motor and auxiliaries; a switch of capable of making or breaking an electric coupling between the auxiliary battery and the starter motor, and the auxiliaries and the main battery; and a control apparatus that diagnoses an abnormality in the auxiliary battery. The main battery is coupled to the auxiliaries via a DC-DC converter capable of stepping down a voltage of electricity stored in the main battery. The auxiliary battery is coupled to the auxiliaries via the switch. The controller diagnoses an abnormality in the auxiliary battery with the switch open.


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    Title :

    Power supply system for a hybrid vehicle


    Contributors:
    SETA ITARU (author) / KUBO TATSUHIRO (author)

    Publication date :

    2021-08-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern




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