Patent ID: 8113309

Claim:
A method of operating a drivetrain of a motor vehicle in which the drivetrain comprises at least a hybrid drive with an internal combustion engine and an electric motor, a clutch being arranged between the internal combustion engine and the electric motor, and a transmission being arranged between the hybrid drive and a drive output, the method comprising the steps of: filling the clutch arranged between the internal combustion engine and the electric motor, when the motor vehicle is at rest, with a filling pressure at least up to a touch-point such that the clutch, arranged between the internal combustion engine and the electric motor, transmits at least a drag torque and then, when movement of the motor vehicle is desired; if a starting torque desired by a driver of the motor vehicle is above a limit value, then either further partially engaging or completely engaging the clutch, arranged between the internal combustion engine and the electric motor, such that the internal combustion engine is immediately turned over and started up by the electric motor; and neglecting to turn over and start the internal combustion engine with the electric motor if the starting torque, desired by the driver when the vehicle is started, is below the limit value.