The invention relates to a battery electric vehicle fast charging heat management system and a control method. The management system comprises a battery water circulation loop, an electric drive water circulation loop, an air conditioner refrigeration loop, an expansion water tank, a four-way valve, a Chiller, a water cooling condenser and a fan. The control method comprises a first working mode under the summer high-temperature driving working condition, a second working mode under the summer high-temperature fast charging working condition, a third working mode under the driving working condition after charging in spring and autumn, a fourth working mode under the winter ultralow-temperature fast charging working condition and a fifth working mode under the winter low-temperature driving working condition. According to the invention, the battery can be fully cooled in the 800V fast charging process on the premise of not influencing the discharging cooling capacity of the battery under the driving condition, and the fast charging time is ensured.
本发明涉及一种纯电动汽车快充热管理系统及控制方法,管理系统包括电池水循环回路、电驱水循环回路、空调制冷回路、膨胀水箱、四通阀、Chiller、水冷冷凝器、风扇;控制方法包括在夏季高温行车工况下的工作模式一、在夏季高温快充工况下的工作模式二、在春秋季充电后的行车工况下的工作模式三、在冬季超低温快充工况下的工作模式四、在冬季低温行车工况下的工作模式五;本发明能够在不影响行车工况电池放电冷却能力的前提下,对电池在800V快充过程中进行充分冷却,保证快充时间。
Pure electric vehicle fast charging heat management system and control method
一种纯电动汽车快充热管理系统及控制方法
2024-10-01
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 |
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