To provide an air conditioner of a fuel cell vehicle which reduces hydrogen quantity consumed for air conditioning at a low speed travel when waste heat of a fuel cell stack is utilized for heating.SOLUTION: An air conditioner comprises: a first cooling water circulation flow passage which supplies a fuel cell stack with cooling water; a second cooling water circulation flow passage which supplies a heater core with cooling water; an electric heater; an air conditioning three-way valve which controls cooling water supply between the first cooling water circulation flow passage and the second cooling water circulation flow passage; and an ECU which controls output of the electric heater according to an inlet target temperature THO of the heater core. When waste heat of the fuel cell stack is utilized for heating, in a case that a vehicle speed V is a prescribed vehicle speed Vp or more, the inlet target temperature THO is set to a prescribed temperature Tp by the ECU, and in a case that the vehicle speed V is less than the prescribed vehicle speed Vp, the inlet target temperature THO is set to a temperature that is lower than the prescribed temperature Tp, and the same temperature as that of engine cooling water of an engine vehicle having a similar vehicle body as an own vehicle and at the same vehicle speed V.SELECTED DRAWING: Figure 3

    【課題】燃料電池車両の空調装置において、燃料電池スタックの廃熱を暖房に利用する場合に、低速走行時に空調で消費される水素量を低減する。【解決手段】燃料電池スタックに冷却水を供給する第1冷却水循環流路と、ヒータコアに冷却水を供給する第2冷却水循環流路と、電気ヒータと、第1および第2冷却水循環流路間の冷却水の供給を制御する空調三方弁と、ヒータコアの入口目標水温THOに応じて電気ヒータの出力を制御するECUと、を備える空調装置である。ECUは、燃料電池スタックの廃熱を暖房に利用する場合に、車速Vが所定車速Vp以上のときは、入口目標水温THOを所定温度Tpに設定する一方、車速Vが所定車速Vp未満のときは、入口目標水温THOを、所定温度Tpよりも低く、且つ、自車両と同等の車体を有するエンジン車両の、同じ車速Vにおけるエンジン冷却水温と同等に設定する。【選択図】図3


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    Titel :

    AIR CONDITIONER OF FUEL CELL VEHICLE


    Weitere Titelangaben:

    燃料電池車両の空調装置


    Beteiligte:
    OSHIMA RYU (Autor:in)

    Erscheinungsdatum :

    25.04.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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