Research on Power Loss of Continuously Variable Transmission Based on Driving Cycles

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Fu, Bing^1 ; Zhou, Yunshan^1 ; Cao, Chenglong^2 ; Li, Quan^1 ; Zhang, Feitie^1

College of Mechanical and Vehicle Engineering, Hunan University, Changsha, China^1

Hunan Jianglu and Rundar Vehicle Transmission Co. Ltd., Changsha, China^2

关键词: Continuously variable transmission;    Driving cycle;    Dynamic condition;    Power loss modeling;    Power-losses;    Transmission components;    Vehicle dynamic model;    Vehicle fuel economy;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/5/052054/pdf
DOI  :  10.1088/1755-1315/108/5/052054

来源: IOP

【 摘 要 】

In order to further enhance the fuel economy of vehicles with continuously variable transmission (CVT), a CVT power loss model under dynamic condition is established based on the power loss model of each transmission component and the vehicle dynamic model. With driving cycles 10-15, NEDC and US06 as input, the distribution of CVT power loss and the influence of the main losses to vehicle fuel economy are analysed. The results show that the variation loss, oil pump loss and torque converter loss are the main losses of CVT power loss under driving cycles, and the metal belt and oil pump have relatively larger fuel saving potential. At low speed reducing the pump loss is more effective to fuel saving, while at high speed reducing the variation loss is more effective.