A new approach of shift schedule optimization for AMT vehicle based on optimal theory

This paper is aimed to solve the problem when the car shift is not smooth with the feeling of being stamped, in view of the two parameters of the automatic transmission (AMT) shift schedule, using AVL Cruise software modeling and Cruise with the working condition of the new European road spectrum (NEDC) simulation, it concludes that transmission of the original shift schedule curve, in view of the AMT shift schedule, the optimized data import controller and generate new shift schedule, shift schedule is more smooth than before, making shift more smoothly and reducing fuel consumption. The result shows that this method could generate the shift schedule accurately and quickly and optimize the transmission states on the specific cycle conveniently. These works could be used in the effective calibration of automatic transmission and shorten the vehicle development cycle.