Research on Automatic Calibration Algorithm of Vehicle Automatic Transmission Shift Control
In order to improve the shift characteristics of automatic transmission,a model-based automatic hydraulic calibra-tion method of automatic transmission clutch is proposed to realize the automatic adjustment of clutch shift parameters.The cali-bration method includes automatic transmission simulation model,vehicle simulation analysis algorithm and automatic calibra-tion algorithm based on optimization process,and iterative simulation and analysis are carried out in the optimization process.Taking the power on shift as the research object,the simulation results show that whether it is power on upshift or power on down-shift,this method can effectively perform the basic mapping of clutch hydraulic curve.Through the proposed calibration method,the calibration time before actual vehicle test can be shortened and the efficiency of automatic transmission development process can be improved.
Automatic TransmissionAutomatic CalibrationClutch ControlShift Control
NETL
NSTL
万方数据
维普
