Procedure for deactivating a parking brake mechanism of a hybrid drive train for a vehicle

摘要

A method for deactivating a parking lock mechanism (2) of a hybrid drive train (1) for a motor vehicle, wherein the hybrid drive train (1) has a dual clutch transmission (3) with a dual clutch (4), an internal combustion engine (5), at least one electric machine (6), wherein the internal combustion engine (5) as well as the electric machine (6) with the dual clutch transmission (3) is effectively connected or can be connected, and has a parking lock mechanism (2) for positively locking an output (7) of the hybrid drive train (1), the parking lock mechanism ( 2) is activated by a corresponding driver request, comprising the following steps: - Determination of a parking position of the motor vehicle, - Determination of the operating state of the internal combustion engine (5), - Closing of the double clutch (4) when the internal combustion engine (5) is at a standstill, - Activation of the electrical machine (6) and transmission of a drive torque to the dept rubbed (7) of the hybrid drive train (1) depending on the determined parking position of the motor vehicle, and disengaging the parking lock mechanism (2).