The invention relates to an electric vehicle heat pump system and a control method thereof, and relates to the technical field of air conditioner heat pumps, the electric vehicle heat pump system comprises an R744 refrigerant loop, the R744 refrigerant loop comprises two refrigerant parallel branches, the first refrigerant parallel branch comprises an ERV1 bidirectional electronic expansion valve and a main heat exchanger, and the second refrigerant parallel branch comprises an ERV1 bidirectional electronic expansion valve and a second heat exchanger; the second refrigerant parallel branch comprises a battery pack capable of realizing a battery direct cooling and direct heating technology and an ERV2 bidirectional electronic expansion valve; and the water circulation loop comprises a first water parallel branch, the first water parallel branch comprises a warm air chip, and the main heat exchanger and the warm air chip are both located in the HVAC system. According to the electric vehicle heat pump system and the control method thereof, the refrigerating and heating functions of the passenger compartment and the battery are achieved in a direct type heat pump mode, the heating function of the passenger compartment is achieved through the waste heat recovery function, the heat exchange efficiency of the system is high, and the control strategy is simple.
本申请涉及一种电动车热泵系统及其控制方法,涉及空调热泵技术领域,包括:R744制冷剂回路,其包含两个制冷剂并联支路,其中,第一制冷剂并联支路包含ERV1双向电子膨胀阀和主换热器,第二制冷剂并联支路包含能够实现电池直冷直热技术的电池包和ERV2双向电子膨胀阀;水循环回路,其包含第一水并联支路,所述第一水并联支路包含暖风芯片,所述主换热器和暖风芯片均位于HVAC系统内。本申请的目的在于提供一种电动车热泵系统及其控制方法,采用直接式热泵模式实现乘员舱和电池的制冷制热功能,并采用余热回收功能实现乘员舱加热功能,系统换热效率高,控制策略简单。
Electric vehicle heat pump system and control method thereof
一种电动车热泵系统及其控制方法
2024-01-05
Patent
Electronic Resource
Chinese
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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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