Patent ID: 6905439

Claim:
A method for controlling and regulating a drive train ( 1 ) of a vehicle, comprising a drive unit ( 2 ), a transmission ( 3 ) and an output unit ( 4 ) wherein the transmission ( 3 ) has a plurality of controllable free-wheel units ( 7 A to 7 C) corresponding with a plurality of toothed wheel pairs ( 6 A to 6 E) for disconnecting or connecting an old or a new gear, the method comprising the steps of: adjusting a transmission capacity of a single clutch ( 5 ) located on an output side between the transmission ( 3 ) and the output unit ( 4 ) in the presence of a shift command for carrying out a higher traction shift, so that a current drive torque of the drive train ( 2 ) applied to the clutch is transmitted to the output unit ( 4 ) and the clutch ( 5 ) is in a slight slip state so that vibrations generated during the shift is not transmitted through the single clutch ( 5 ) to the output unit ( 4 ); suddenly creating an operative connection, during the higher traction shift, between one of the plurality of controllable free-wheel units and one of the plurality of toothed wheel pairs of the new gear corresponding therewith; and canceling the operative connection of the old gear concurrently with the creation of the operative connection.