混动轻卡热管理系统研究分析

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关键词：混动轻卡；发动机；扭矩点；散热器；热管理

中图分类号：U461 DOI ：10.20042/j.cnki.1009-4903.2024.06.011

Research and Analysis of Thermal Management System for Light Truck Hybrid Vehicles

Abstract： According to market research， the 4.5-ton light truck hybrid model is prone to intermittent high temperature problems andengine high temperature alarms in some areas of the southwestern market during summer. After visiting customers， it was found thatthe area is mountainous with long lane slopes， with the longest uphill section reaching 25km. The vehicle is severely overloaded andworks under high torque and low-speed torque conditions when climbing long slopes. The engine compartment airflow is not smooth，and heat is generated when the air conditioning is turned on in summer， which increases the ambient temperature of the compartment.The low engine speed leads to low fan speed and low airflow， and the heat management system has a heavy heat dissipation burden，making the engine prone to high temperatures.

Key words： Light truck hybrid；Engine；Torque point；Radiator；Thermal management

0引言

混动轻卡融合了燃油发动机与电动机的优势，旨在实现更高效的燃油效率和更低的排放。（剩余1575字）