关键词: 发动机；汽车热平衡；优化分析；商用汽车

Abstract: Taking a light commercial vehicle as an example, the road test method of motor vehicles thermal balance is studied. In order to measure and analyze the thermal balance of commercial vehicles, this paper proposes a road test scheme (load trailer) test of vehicle thermal balance, which fully verifies the effectiveness and feasibility of the scheme through the test and application of a vehicle. On this basis, two optimization schemes to solve the motor vehicles thermal balance problem of vehicle engines are proposed to verify the feasibility of the optimization scheme and achieve good results.

Key words: Engine; Vehicle thermal balance; Optimization analysis; Commercial vehicle