Patent ID: 8282528

Claim:
A method for operating a vehicle drive train ( 1 ) comprising a combustion engine ( 2 ), a turbo charger ( 22 ) assigned to the combustion engine, a mechanism for injecting additional compressed air into an air intake system ( 8 ) of the combustion engine ( 2 ), a start and shift clutch ( 60 ) and a transmission ( 62 ), the method comprising the step of: only injecting additional compressed air into the air intake system ( 8 ) of the combustion engine ( 2 ) during preparation for and execution of a start procedure if, depending upon an actual operating situation of the vehicle, the injection of additional compressed air into the air intake system ( 8 ) benefits at least one of driver safety, fuel consumption, drive comfort and clutch wear; and coordinating activation of the start and shift clutch ( 60 ) and the mechanism for injecting additional compressed air into the air intake system ( 8 ) such that either a positioning speed or a dynamic behavior of a clutch actuator ( 74 ), and a time, a pressure, and a duration of the injection of the additional compressed air into the air intake system ( 8 ) are coordinated with each other.