The invention relates to a refrigerant module of an electric automobile, a control method of the refrigerant module and a whole automobile thermal management system, and belongs to the technical field of whole automobile thermal management of electric automobiles. The refrigerant module comprises a compressor, a water-cooled condenser, a liquid storage tank, an expansion valve and a cascade Chiller. The cascade Chiller is provided with a first refrigerant side, a first water side, a second refrigerant side and a second water side. One end of the hot gas bypass branch is connected to the pressure discharge side, the other end of the hot gas bypass branch is connected to the second refrigerant side, and a two-way ball valve is arranged on the hot gas bypass branch. The refrigerant module comprises a conventional starting mode, a low-temperature starting mode and a hot air compensation operation mode. The thermal management system comprises a refrigerant module, a passenger compartment management module, a battery pack management module and a motor management module. According to the refrigerant module, a PTC is omitted, the system energy consumption of the refrigerant module during starting and operation in an ultralow-temperature scene is reduced through the hot gas bypass branch, the refrigerating and heating range of the compressor is widened, and full-temperature-range pressure-free operation is achieved.

    本发明涉及一种电动汽车的冷媒模块及其控制方法、整车热管理系统,属于电动汽车整车热管理技术领域。冷媒模块包括压缩机、水冷式冷凝器、储液罐、膨胀阀和复叠式Chiller,复叠式Chiller具有第一冷媒侧、第一水侧、第二冷媒侧和第二水侧。热气旁通支路一端连接至压排侧,另一端连接至第二冷媒侧,在热气旁通支路上设置有两通球阀。冷媒模块包括常规启用模式、低温启用模式和热气补偿运行模式。热管理系统包括冷媒模块、乘员舱管理模块、电池包管理模块和电机管理模块。本发明的冷媒模块取消设置PTC,通过热气旁通支路来降低冷媒模块在超低温场景下的启动和运行时的系统能耗,并拓宽压缩机的制冷和采暖范围,实现全温域无压力运行。


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    Titel :

    Refrigerant module of electric automobile, control method of refrigerant module and whole automobile thermal management system


    Weitere Titelangaben:

    电动汽车的冷媒模块及其控制方法、整车热管理系统


    Beteiligte:
    HU HAO (Autor:in) / TAN BAICHUAN (Autor:in) / JIANG MINGYUAN (Autor:in) / HUANG CHUAN (Autor:in) / CHEN LI (Autor:in) / WU GUICHAO (Autor:in) / TANG XINGWEI (Autor:in)

    Erscheinungsdatum :

    23.08.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    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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