To provide a vehicular air-conditioning system that comprises a refrigerant circuit and a heat medium circuit and includes a plurality of vehicle exterior-side heat exchangers which perform heat-exchange of outdoor air with a heat medium.SOLUTION: A vehicular air-conditioning system comprises: a refrigerant circuit; a heat medium circuit; a vehicle interior-side heat exchanger; vehicle exterior-side heat exchangers which are a first heat exchanger and a second heat exchanger arranged in series with respect to flow of air caused by an air blower; a switching part; a sensing part for sensing a degree of frost formation; and a control device. Operation modes include a defrosting mode in which a heat medium of a high-temperature medium circuit is supplied to the exchanger to be defrosted alternatively selected, of the first heat exchanger and the second heat exchanger connected in parallel in the heat medium circuit, by operating the switching part. The control device, when it is determined that both of the first heat exchanger and the second heat exchanger are required to be defrosted, selects the first heat exchanger positioned closer to a windward side preferentially over the second heat exchanger positioned at downwind side.SELECTED DRAWING: Figure 5

    【課題】冷媒回路および熱媒体回路を備え、外気と熱媒体とを熱交換させる複数の車外側熱交換器を含む車両用空調システムおよび車両用空調方法の改良。【解決手段】車両用の空調システムは、冷媒回路と、熱媒体回路と、車内側熱交換器と、車外側熱交換器であって、送風機による空気の流れに関して直列に配置される第1熱交換器および第2熱交換器と、切替部と、着霜度合を検知するための検知部と、制御装置と、を備える。運転モードには、切替部の動作により熱媒体回路において並列に接続されている第1熱交換器および第2熱交換器のうち択一的に選択される除霜対象に高温媒体回路の熱媒体を供給する除霜モードが含まれる。制御装置は、第1熱交換器および第2熱交換器のいずれも要除霜と判定されるとき、風下に位置する第2熱交換器よりも風上に位置する第1熱交換器を優先的に除霜対象として選択する。【選択図】図5


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    Title :

    VEHICULAR AIR-CONDITIONING SYSTEM AND VEHICULAR AIR-CONDITIONING METHOD


    Additional title:

    車両用空調システムおよび車両用空調方法


    Contributors:

    Publication date :

    2022-11-10


    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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