The invention provides an electric vehicle thermal management system with a variable refrigeration sequence and a control method, and relates to the technical field of electric vehicle thermal management, the electric vehicle thermal management system comprises an air conditioning system and a power battery thermal management system, flexible conversion of a parallel connection structure and a series connection structure of a double-refrigeration system is achieved according to seasonal conditions and different operation working conditions, and the energy consumption is reduced. Under the operation working conditions of high temperature and high humidity, parking, vehicle fast charging, climbing and the like, the refrigeration priority of the air conditioning system and the battery heat management system is changed through the three-way valve, active control over the heat transfer temperature difference and the refrigerating capacity of all the systems is achieved, and therefore the heat safety of a power battery and the comfort of a driver and passengers are guaranteed, and the driving range of the electric vehicle is increased.
本发明提供了一种可变制冷次序的电动汽车热管理系统及控制方法,涉及电动汽车整车热管理技术领域,包括空调系统与动力电池热管理系统,根据季候条件及不同的运行工况,实现双制冷系统并联与串联结构的灵活转换,在高温高湿、驻车和车辆快充、爬坡等运行工况下通过三通阀改变空调系统与电池热管理系统的制冷优先级,实现各系统传热温差与制冷量的主动控制,从而保证动力电池的热安全和驾乘人员的舒适性,提升电动汽车的续驶里程。
Electric vehicle thermal management system with variable refrigeration sequence and control method
一种可变制冷次序的电动汽车热管理系统及控制方法
2023-06-30
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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