Simulation of range-extended powertrain cooling system based on AMEsim
CHEN Tao
TANG Qijun
XIE Xinyan
CHEN Siyuan
ZHANG Daqing
Abstract：In order to control the temperature of the diesel engine intake,engine body,generator and controller of the extended range power system,a one-dimensional simulation model of the extended range power system and its cooling device is established using AMEsim software.The working performance of each circuit of the cooling system(diesel engine,inter-cooler,generator and its controller)under maximum power and maximum torque conditions is analyzed.The influence of three factors:the windward area of the radiator,the thickness of the core,and the spacing between fins on the performance of the cooling system is analyzed.The engine and inter-cooler are improved,keeping the windward area of the engine and inter-cooler unchanged,increasing the core thickness to 52 mm and 48 mm respectively,and keeping the fin spacing at 2.4 mm.The simulation results show that increasing the windward area,core thickness,and reducing the fin spacing of the radiator can improve the performance of the cooling system.Among them,increasing the windward area shows a more significant effect,followed by reducing the fin spacing and thickening the radiator core.The optimization plan ensures that the inlet and outlet water temperatures of the engine and inter-cooler meet the requirements,and the outlet water temperatures of the engine and inter-cooler are reduced by 11.0℃and 8.8℃respectively,which can ensure the stable operation of the extended range power system.
Keywords：AMEsimcooling systemhybridsimulation analysis
Publication Date：2025-01-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 16-23 )