纯电动汽车余热回收热管理系统制热性能分析  

Heating Performance Analysis of Thermal Management System for Waste Heat Recovery of Pure Electric Vehicle

作　　者：高春艳 洪连杰 梁坤峰 陈浩远 刘宏波 GAO Chunyan;HONG Lianjie;LIANG Kunfeng;CHEN Haoyuan;LIU Hongbo(School of Vehicle and Transport Engineering,Henan University of Science and Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《河南科技大学学报(自然科学版)》2024年第6期9-18,M0002,M0003,共12页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(52378094,52376005);河南省科技发展项目(222102220033);洛阳市科技发展计划项目(2302035A)。

摘　　要：为探究不同电机余热回收方案在车辆动态工况下的制热性能,使用AMEsim构建了3种电机余热回收方案的仿真模型,并对电机余热模型予以验证。在-10℃的CLTC-P工况下对3种方案进行仿真分析,并进行优化。结果表明:3种余热回收方案车内温度分别在900 s、96 s和550 s时达到20℃。随着电机余热量增多,方案1的系统功耗降低最为明显,最低为125 W,方案2稳态时的舱外蒸发器换热负荷减少了45%,工况结束时方案3的舱外蒸发器进风温度提高了4℃。优化后的系统车内温度在116 s时达到20℃,同时制热能效比在工况后期保持在3以上,实现制热速率与制热能效比的兼顾。In order to explore the heating performance of different motor waste heat recovery schemes under the vehicle dynamic working conditions,the simulation models of three motor waste heat recovery schemes were constructed by using AMEsim,and the motor waste heat model was verified.Simulation analysis was carried out for each scheme under the CLTC-P condition at-10℃,and optimization was performed.The results show that the cabin temperatures of the three waste heat recovery schemes reach to 20℃at 900 s,96 s,and 550 s respectively.As the amount of motor waste heat increases,the system power consumption of scheme 1 is reduced most significantly,with a minimum of 125 W.The heat exchange load of the outdoor evaporator of scheme 2 at steady state is reduced by 45%at the end of the working condition.The inlet air temperature of the outdoor evaporator of scheme 3 is increased by 4℃.The cabin temperature of the optimized system reaches to 20℃at 116 s.At the same time,the coefficient of performance(COP)remains above 3 in the later stage of the working condition,realizing the balance between heating rate and COP.

关 键 词：纯电动汽车 热泵空调 余热回收 热管理系统 

分 类 号：U462[机械工程—车辆工程]