纯电动乘用车电驱动系统余热回收特性研究  

Characterization of Waste Heat Recovery in Electric Drive System of Battery Electric Passenger Vehicle

作　　者：何家文 张欣[1] 李欣林 冯硕 HE Jiawen;ZHANG Xin;LI Xinlin;FENG Shuo(School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《汽车工程学报》2024年第5期848-857,共10页Chinese Journal of Automotive Engineering

基　　金：国家重点研发计划项目(2021YFB2501701):纯电动客车/乘用车高效高环境适应动力平台技术。

摘　　要：针对如何回收电机余热以提升乘员舱制热性能的问题,基于AMESim软件搭建了纯电动乘用车热管理系统仿真模型。在此基础上,分析了电机余热回收模式下,制冷剂分配比例和热管理系统架构对乘员舱制热性能的影响。研究结果表明,在车速为60 km/h时,电机的发热量可达1402 W,电机控制器的发热量可达427 W。与无电机余热回收模式相比,通过合理分配制冷剂,热管理系统从电驱动系统和环境中吸收的总热量可提升58.69%~100.57%,乘员舱制热功率可提升71.36%~100.37%。在电机余热回收模式下,采用并联架构的乘员舱制热功率比串联架构高出了23.42%~27.23%。Aiming at the problem of how to recover the waste heat of the motor to improve the thermal performance of the passenger cabin,a simulation model of the thermal management system of a battery electric passenger vehicle is constructed by using AMESim software.On this basis,the effects of refrigerant distribution ratio and thermal management system architecture on passenger cabin heating performance are analyzed under the motor waste heat recovery mode.The results show that at a vehicle speed of 60 km/h,the heat generation of the motor can be up to 1402 W and the heat generation of the motor controller can be up to 427 W.Compared with the no-motor waste heat recovery mode,the total heat absorbed by the thermal management system from the electric drive system and the environment can be increased by 58.69%-100.57%and the passenger cabin heating power can be increased by 71.36%-100.37%by distributing the refrigerant rationally.In the motor waste heat recovery mode,the passenger cabin heating power with the parallel architecture was 23.42%to 27.23%higher than that with the series architecture.

关 键 词：电机余热回收 热管理 制热性能 电动汽车 

分 类 号：U469.72[机械工程—车辆工程]