电动汽车热泵空调系统能效优化研究

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中图分类号：U463.851 文献标识码：A 文章编号：1003-8639（2025）09-0055-03

Research onEnergyEffciencyOptimizationofHeatPumpAirConditioningSystemforElectric Vehicles

Zuo Chuan （Huanggang Polytechnic College， Huanggang 438oo2， China）

【Abstract】To addressthe issue of insufficient energy effciency of electric vehicle heat pump air conditioning systems in complex environments such as low temperature and high humidity，this paper deeply analyzes its working mechanism，including the system structure composition，the thermodynamic cycle characteristics of the working medium，andthe performance features under different working conditions.It also discusses key influencing factors such as system matching design，energyloss and recovery mechanisms，and proposes targeted optimization strategies： applying new and highly efficient working fluids to enhance the thermodynamic performance at low temperatures， optimize the structure and materials of heat exchangers to strengthen heat exchange eficiency，and achieve the stepwise utilizationof the vehicle's heat through modular integration and intellgent thermal management.Research shows that the above strategies can effectively break through the energy eficiencybottleneck of heat pump systems in extreme environments，providing technical references for enhancing the winter driving range of electric vehicles and promoting the energy efficiency upgrade of the entire thermal management system chain.

【Key words】electric vehicles；heat pump air conditioning system； energy effciency optimization;heat exchanger; intelligent thermal management

0 引言

电动汽车冬季取暖主要依赖高压正温度系数（PositiveTemperatureCoefficient，PTC）加热器和热泵系统。（剩余3593字）