The invention relates to the technical field of electric vehicle lithium battery thermal management, and particularly discloses a pure electric vehicle integrated thermal management control system and method based on a heat pump air conditioner. Information such as states of a cab thermal management subsystem and a battery system thermal management subsystem, drivers, external environment information, component working states and cooling liquid temperature is obtained, a whole vehicle thermal management mode is judged, working modes of the subsystems are determined, different valves and water pumps are controlled to be opened, heating equipment and refrigeration equipment are controlled, and the control system is controlled. Different conduction modes of the pipeline connecting pieces are set, different modes in the three subsystems are controlled to be combined with one another, and control over the whole vehicle thermal management system is achieved; the rotating speed of the compressor and the refrigerating capacity of the system are controlled through the sliding mode variable structure model; and the EXV opening degree of the electronic expansion valve and the gear of the PTC heater are controlled through a PID algorithm, so that the power battery is in an efficient and safe working temperature, and the energy consumption of the vehicle is reduced.
本发明涉及电动汽车锂电池热管理技术领域,其具体公开了一种基于热泵空调的纯电动汽车集成式热管理控制系统和方法,通过车辆传感器采集数据,获取驾驶室热管理子系统、电池系热管理子统状态、驾驶员、外界环境信息、部件工作状态以及冷却液温度等信息,判断整车热管理模式,确定各子系统的工作模式,控制不同的阀门、水泵开启,对加热设备和制冷设备控制,设置管路连接件不同的导通方式,控制三个子系统中的不同模式相互组合,实现对整车热管理系统的控制;通过滑模变结构模型控制压缩机转速,控制系统制冷量;通过PID算法控制电子膨胀阀EXV开度和PTC加热器档位,使得动力电池处于高效、安全的工作温度,降低车辆能耗。
Pure electric vehicle integrated heat management system and method based on heat pump air conditioner
一种基于热泵空调的纯电动汽车集成热管理系统和方法
2025-03-11
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 / 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 |
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