According to the control theory of wet multi-plate clutch and starting process

taking full account of starting impact and sliding friction works

the starting process is analyzed and the control parameters of each starting process are selected.And then the hierarchical fuzzy optimization control strategy of clutch engagement occupation-empty ratio is proposed

which means the first analysis of starting intention

followed by initial occupation-empty ratio control

and finally to optimize occupation-empty ratio.Based on the control strategy

the control model and algorithm of hierarchical fuzzy optimization is designed.After vehicle simulation and compare with other control strategies

the results show that the strategy can effectively identify the driver’s starting intention

improve the smoothness of the wet clutch and reduce the starting impact and sliding friction works.