Patent ID: 8016722

Claim:
A method for controlling a gear shift of an automatic transmission with a drive motor acting on an input shaft of the automatic transmission and a drive-connected main clutch arranged between the drive motor and the automatic transmission, which is one of disengaged and engaged by a main clutch splitter, as well as with a control apparatus for coordinating control of the automatic transmission, the drive motor, and the main clutch, on shifting from a current gear to a target gear, the method comprising the steps of: coordinating, via the control apparatus, a reduction of a drive torque of the drive motor (me_soll), a reduction of main clutch torque, and an interruption of a frictional connection in the automatic transmission such that the drive torque of the drive motor (me_soll) and the main clutch torque are reduced with a temporal overlap, whereby through the reduction of the main clutch torque, the main clutch reaches a slip region; at the same time the slip region is reached by the main clutch, reducing the drive torque (me_soll) of the drive motor whereby with a still engaged current gear, the drive torque (me_soll) is transmitted to an input shaft of the automatic transmission by the drive motor in a slip mode, and increasing a rotational speed (n_mot) of the drive motor to nearly a target speed, whereby with further disengagement of the main clutch, the current gear is subsequently disengaged, and with an interruption of the frictional connection in the automatic transmission, transmitting, via the drive motor, the drive torque (me_soll) to the input shaft of the automatic transmission via the main clutch.