Heating Performance Analysis of Thermal Management System for Waste Heat Recovery of Pure Electric Vehicle
GAO Chunyan
HONG Lianjie
LIANG Kunfeng
CHEN Haoyuan
LIU Hongbo
Abstract：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.
Keywords：pure electric vehicleheat pump air conditionerwaste heat recoverythermal management system
Publication Date：2024-12-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 9-18 )