To provide a vehicular heat pump air-conditioning system performing a dehumidification heating function by using a simple configuration.SOLUTION: A vehicular heat pump air-conditioning system includes a refrigerant circuit (RFCY), auxiliary heaters (10, 13) and a control unit (20). The control unit compares a difference (T-T') between a target blowout temperature (T) and an actual blowout temperature (T') with the magnitude of a preset first temperature threshold value (a). The control unit adjusts an opening of a first expansion valve and an opening of a second expansion valve. The control unit adjusts output power of the auxiliary heaters. The control unit executes a plurality of heat pump air-conditioning modes different from each other so as to make the actual blowout temperature to come close to the target blowout temperature and maintain it.SELECTED DRAWING: Figure 1

    【課題】簡単な構成で除湿暖房機能を果たす車両用ヒートポンプ空調システムを提供する。【解決手段】車両用ヒートポンプ空調システムは、冷媒回路(RFCY)と、補助ヒータ(10、13)と、制御ユニット(20)とを有する。制御ユニットは、目標吹出温度(T)と実際の吹出温度(T´)との差(T−T´)と予め設定されている第1温度閾値(a)の大きさを比較する。制御ユニットは、第1膨張弁の開度及び第2膨張弁の開度を調節する。制御ユニットは、補助ヒータの出力パワーを調節する。制御ユニットは、ヒートポンプ空調の互いに異なる複数のモードを実行して、実際の吹出温度を目標吹出温度へと接近させ維持させる。【選択図】図1


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    Title :

    VEHICULAR HEAT PUMP AIR-CONDITIONING SYSTEM


    Additional title:

    車両用ヒートポンプ空調システム


    Contributors:
    ZHU JINGYI (author) / HSU CHAO LIANG (author) / YIN ZILIANG (author)

    Publication date :

    2021-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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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