A fuel cell system (10) includes: a motor (16); a fuel cell (11) and an electrical storage device (13) connected to the motor (16) in parallel with each other; a first voltage converter (12) between the motor (16) and the fuel cell (11); a second voltage converter (14) between the motor (16) and the electrical storage device (13); a load circuit between the motor (16) and both the first (12) and second (14) voltage converters; and a control unit (20). The control unit (20) stops boost operation of the first voltage converter (12) when conditions VFC>VM_min and VFC>VBAT+a whereas the control unit (20) prohibits a stop of the boost operation of the first voltage converter (12) when the conditions are not satisfied, wherein in the conditions, VFC is a fuel cell terminal voltage, VBAT is an electrical storage device terminal voltage and VM_min is a load circuit input terminal voltage, set to minimize a system loss while ensuring a torque required of the motor (16).


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    Titel :

    Fuel cell system and control method therefor


    Beteiligte:
    KAJIWARA SHIGETO (Autor:in) / MORI HIROAKI (Autor:in)

    Erscheinungsdatum :

    14.07.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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