Gear changing operations in drive system with automatic gear box with gear change adjusting element arrangement also automatic frictional coupling to determine initiation of gear change and to control gear changing force

摘要

The method for carrying out the gear changing operations includes a number of steps. Firstly determining the initiating of a gear changing operation, after determining this. After the determined initiating of a gear changing operation, the lowering of a torque to be transmitted. Following the initiating of a gear changing operation, the gear changing adjusting element system (34) is controlled for the prodn. of a changing face by this, so that with the engaged friction coupling (16), a gear applied before the intiating of the gear changing operation is then disengaged, if the changing force produced by the gear changing adjusting element arrangement (34) is essentially equal to a counterforce produced in the changing drive (12) produced by the torque to be transmitted.