Research on the Control Method of Auto AMT Variable Parameter Shift Process

In order to shorten the power interruption time of the automobile AMT shift process, and restrain the shift shock, aiming at the control problem of the shifting actuator, the AMT variable parameter shift process control strategy is proposed. This method divides the shift process into three stages according to the synchronizer working characteristics, and adopts different control strategies. According to the fuzzy control theory, the fuzzy criterion rules are established to automatically determine the stage boundary point of the synchronizer shift process, and adopt different motor shift control strategies at each stage. It monitors whether the shift process is normal by means of redundant judgment. The test results show that this method can effectively shorten the shift time.