汽车工程学报2025，Vol.15Issue(3)：375-384,10.DOI:10.3969/j.issn.2095-1469.2025.03.10
轻型商用电动汽车热泵系统制热性能仿真分析与试验研究
Simulation and Experimental Study on the Heating Performance of a Heat Pump System for Light Commercial Electric Vehicles
摘要
Abstract
The significant reduction in electric vehicle driving range at low temperatures has limited their widespread adoption in extremely cold regions.To address this industry challenge,this paper proposes an indirect heat pump system for light commercial electric vehicles operating in severe cold climates.The five-way valve design used in the system enables a high level of system integration,and satisfies the thermal demands of various vehicle subsystems under low-temperature conditions.A 1-D simulation model of the vehicle thermal management system was established and validated through bench testing.The low-temperature performance of the system was assessed using climate chamber experiments on the actual vehicle.The heating performance and energy consumption of the proposed system were compared with those of the traditional Positive Temperature Coefficient(PTC)heating mode.The results show that the proposed thermal management system can meet the heating demands at low temperatures,with the average foot outlet temperature reaching 32.3℃ at an ambient temperature of-5℃.Compared with the traditional PTC heating,the heat pump system proves superior energy-saving performance,reducing system energy consumption by more than 50％and extending the driving range by approximately 15％.关键词
热泵空调/整车热管理/系统性能/控制策略Key words
heat pump air conditioning/vehicle thermal management/system performance/control strategy分类
交通工程引用本文复制引用
王锋军,滕海旭,罗睿林,时乐,谢鹏..轻型商用电动汽车热泵系统制热性能仿真分析与试验研究[J].汽车工程学报,2025,15(3):375-384,10.基金项目
国家自然科学基金项目(52302450) （52302450）
北京市自然科学基金项目(3232034) （3232034）
