Method for the operation of a drivetrain

Method for the operation of a drivetrain of a motor vehicle comprising at least an automatic transmission and a drive motor, such that successive upshifts or successive downshifts can be carried out with overlap in such manner that during a first upshift or downshift at least one shift element required for a subsequent, second upshift or downshift is prepared during the first upshift or downshift in progress in such manner that when a synchronization point of the first upshift or downshift in progress is reached, the subsequent second upshift or downshift can be carried out immediately, characterized in that in an automatic transmission with at least five shift elements, of which, for torque or force transfer, at most two shift elements are disengaged in any forward gear and in a reverse gear while the other shift elements are engaged, during the implementation of a first upshift or downshift and/or during that of a second, subsequent upshift or downshift, a torque of the drive motor is increased and/or reduced relative to a drive motor torque derived from a driver's wish, in order to support the overlapped implementation of successive upshifts or downshifts.

(canceled)

A method of operating of a drivetrain of a motor vehicle having at least a drive motor and an automatic transmission with at least five shift elements, the method improving a shift speed of at least one of a successive upshift and a successive downshift, such that during a first upshift or a first downshift, at least one shift element, required for the respective successive upshift or the successive downshift, is prepared such that when a synchronization point of the first upshift or the first downshift in progress is reached, the successive upshift or the successive downshift can be immediately carried out, the method comprising the steps of:

• requiring, at most, two of the at least five shift elements be disengaged and a remainder of the at least five shift elements be disengaged, in each of a plurality of forward and reverse gears for transferring one of torque and force;
• and one of increasing and decreasing a torque of the drive motor, relative to a torque of the drive motor derived from a driver's wish, during at least one of the first upshift or the first downshift and the successive upshift or the successive downshift to assist in overlapped implementation of the successive upshifts or the successive downshifts.