电动汽车尼桑聆风与本田雅阁动力电子热管理系统散热性能分析  

Heat Dissipation Performance Analysis of Power Electronic Thermal Management Systems of Electric-drive Vehicle LEAF and Accord

作　　者：杜传山 李霞 刘帅 李林[3] DU Chuan-shan;LI Xia;LIU Shuai;LI Lin(Automotive Engineering Department,Zaozhuang Technician College,Zaozhuang 277800,China;School of Computer Science and Engineering,School of Electronic,Beihang University,Beijing 100191,China;Information Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]枣庄技师学院汽车工程系,枣庄277800 [2]北京航空航天大学计算机科学与工程学院,北京100191 [3]北京航空航天大学电子与信息工程学院,北京100191

出　　处：《科学技术与工程》2018年第22期189-193,共5页Science Technology and Engineering

基　　金：国家自然基金(61572062)资助

摘　　要：随着电子技术的发展,汽车动力电子系统的热管理策略逐渐发展为以减少系统成本、提高可靠性和热性能为目标。对两种电动汽车的动力电子热管理系统——2012年的尼桑聆风和2014本田雅阁进行研究。以65℃下的水-乙二醇为冷却剂进行实验;在不同冷却剂流量下,对稳态条件下的绝缘栅双极晶体管热阻进行了测量。基于实验测量的结果,对汽车动力电子热管理系统用计算流体力学和有限元分析模型进行建模和分析。结果表明,在稳态条件下,相比尼桑聆风,本田雅阁模组能提供更低的稳态热阻。Modern thermal management strategies for automotive power electronic systems have evolved over time to reduce system cost and to improve reliability and thermal performance.The power electronic thermal management systems of two electric-drive vehicles-the 2012 Nissan LEAF and 2014 Honda Accord Hybrid were characterized.Tests were conducted to measure the insulated-gate bipolar transistor-tocoolant thermal resistances for steady-state at various coolant flow rates.Water-ethylene glycol at a temperature of 65℃was used as the coolant for these experiments.Computational fluid dynamics and finite element analysis models of the vehicle s power electronics thermal management system were then created and validated using experimentally obtained results.Results indicate that the accord module provides lower steady-state thermal resistance as compared with the LEAF module.

关 键 词：汽车 换热器 动力电子 热管理 热阻性能 

分 类 号：TK122[动力工程及工程热物理—工程热物理]