Automatic transmission's switching operation controlling method, involves storing sum of reference speed and speed difference as new preset maximum reference speed in data memory for operating parameters

摘要

The method involves determining a switching point (ts) based on an instantaneous speed gradient, an instantaneous speed (n) and a preset maximum reference rotation speed (n-max-soll). Actually attained maximum rotational speed (n-max-ist) is detected during an upshift process. A rotational speed difference (dn) between the reference speed and the maximum speed is determined. Sum of the reference speed and the speed difference is stored as a new preset maximum reference speed in a data memory for operating parameters.