Research on Correlation between Vehicle Cycle and Engine Cycle in Heavy-duty commercial vehicle

[摘要] In order to study the correlation between vehicle cycle and engine cycle in heavy commercial vehicles, the conversion model of vehicle cycle to engine cycle is constructed based on the vehicle power system theory and shift strategy, which considers the verification on diesel truck. The results show that the model has high rationality and reliability in engine operation. In the acceleration process of high speed, the difference of model gear selection leads to the actual deviation. Compared with the drum test, the engine speed distribution obtained by the model deviates to right, which fits to the lower grade. The grade selection has high influence on the model.

[发布机构] School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang; 212013, China^1;CATARC Yancheng Automotive Proving Ground Ltd., Yancheng; 224100, China^2

[关键词] Acceleration process;Conversion model;Diesel truck;Engine operations;Grade selection;Heavy commercial vehicle;Heavy-duty commercial vehicles;Shift strategy