The invention provides a vehicle heat pump defrosting method and device and a vehicle, and relates to the technical field of heat pumps, the method is applied to a heat pump and a cooling system of the vehicle, the heat pump comprises a compressor, an outdoor heat exchanger and a first heat exchanger, and a refrigerant output by the compressor sequentially passes through the outdoor heat exchanger and the first heat exchanger and then flows back into the compressor; the cooling system is used for adjusting the temperature of a battery pack and a motor of the vehicle, and the method comprises the steps that when it is determined that an outdoor heat exchanger in a heat pump needs to be defrosted, the temperature control state of the battery pack is determined; selecting a target defrosting control strategy corresponding to the temperature control state from a plurality of preset defrosting control strategies; the target defrosting control strategy is executed, so that a cooling system heats a refrigerant flowing to a compressor through waste heat of a motor; the compressor is used for defrosting the outdoor heat exchanger through a refrigerant. The defrosting efficiency of the vehicle heat pump can be improved.

    本发明提供一种车辆热泵化霜方法、装置及车辆,涉及热泵技术领域,本方法应用于车辆的热泵和冷却系统,热泵中包括压缩机、室外换热器和第一换热器,压缩机输出的冷媒依次经过室外换热器和第一换热器后,流回压缩机中,冷却系统用于调节车辆的电池包和电机的温度,本方法包括:在确定出需要对热泵中的室外换热器进行化霜时,确定电池包的控温状态;在预设的多个化霜控制策略中,选取与控温状态对应的目标化霜控制策略;执行目标化霜控制策略,使得通过冷却系统利用电机的余热对流向压缩机的冷媒加热;压缩机用于通过冷媒对室外换热器进行化霜。本发明能够提高车辆热泵的化霜效率。


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    Title :

    Vehicle heat pump defrosting method and device and vehicle


    Additional title:

    车辆热泵化霜方法、装置及车辆


    Contributors:
    CHEN MING (author) / ZHAO LINCHEN (author)

    Publication date :

    2024-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / 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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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