Patent ID: 8777807

Claim:
A method of releasing a tooth-on-tooth position of either an interlocking shift element of a transmission or an interlocking shift element connected between two transmissions, the tooth-on-tooth position being released using one of a transmission brake, a drive clutch and an electric machine, the method comprising the steps of: upon recognizing when a tooth-on-tooth position to be released, comparing one of a drive-side and an input-side rotation speed of the interlocking shift element to a synchronous speed of the interlocking shift element, selecting at least one actuator from the transmission brake, the drive clutch and the electric machine, depending on the comparison of the one of the drive-side and the input-side rotation speed of the interlocking shift element to the synchronous speed of the interlocking shift element and depending on actuators available for releasing the tooth-on-tooth position, and using the selected at least one actuator to change the one of the drive-side or the input-side speed of the interlocking shift element to substantially match the synchronous speed of the interlocking shift element.