电动汽车交流传导充电效率优化分析  

Optimization Analysis of AC Conductive Charging Efficiency for Electric Vehicles

作　　者：曾羽飞 吴丽芳 Zeng Yufei;Wu Lifang(Chery New Energy Automobile Co.,Ltd,Wuhu 241000,China)

机构地区：[1]奇瑞新能源汽车股份有限公司,安徽芜湖241000

出　　处：《汽车电器》2025年第4期16-18,共3页Auto Electric Parts

摘　　要：文章围绕电动汽车交流传导充电效率展开研究。鉴于中国2023年新能源汽车销量创新高,其能耗指标受关注。文中首先分析交流传导充电效率影响因素,包括能量流向、计算方法及主要影响因素如线缆传输、车载充电器及直流变换器转换效率、高低压负载电量等。接着对满足国标要求的车型及充电桩,用PA5000H功率分析仪采集数据测试充电效率,经对比分析得出待优化车型A效率提升方向,如线缆传输、车载充电器、直流变换器、高低压负载等方面。验证优化策略后表明,优化交流充电口端子压接及热管理控制策略可提升充电效率。最后总结出优化线缆传输路径、热管理策略、直流变换器工作策略等提升充电效率的措施,指出车载充电器和直流变换器转换效率提升有待进一步分析。This paper focuses on the research of AC conduction charging efficiency of electric vehicles.In view of China's 2023 new energy vehicle sales record high,its energy consumption indicators are concerned.Firstly,the paper analyzes the influencing factors of AC conduction charging efficiency,including energy flow direction,calculation method and main influencing factors such as cable transmission,vehicle charger and DC converter conversion efficiency,high and low voltage load power and so on.Then,for the models and charging piles that meet the requirements of the national standard,the PA5000H power analyzer is used to collect data to test the charging efficiency.Through comparative analysis,the efficiency improvement direction of the model A to be optimized is obtained,such as cable transmission,car charger,DC converter,high and low voltage load and so on.After verifying the optimization strategy,it is shown that optimizing the AC charging port terminal crimping and thermal management control strategy can improve the charging efficiency.Finally,it summarizes the measures to improve the charging efficiency such as optimizing the cable transmission path,thermal management strategy and DC converter working strategy,and points out that the conversion efficiency improvement of vehicle charger and DC converter needs further analysis.

关 键 词：电动汽车 交流传导充电 充电效率优化 

分 类 号：U469.72[机械工程—车辆工程]