Patent ID: 8608617

Claim:
Method for performing a gearshift in a vehicle provided with a manual or automated manual transmission, wherein a drivetrain incorporating the automated manual transmission comprises a combustion engine connected via a clutch to the manual or automated manual transmission, and an electric motor/generator drivingly connected to the drive train and arranged between the clutch and the transmission or between the combustion engine and the clutch, and where the electric motor/generator is further connected to an energy storing means and/or an energy consumer, the method comprising: i. controlling the motor/generator to absorb a torque equalling or almost equalling the torque provided by the combustion engine, such that the manual or automated manual transmission transfers a only minor, or no, torque, ii. disengaging a gear with a first gear ratio, iii. controlling the torques absorbed by the motor/generator and provided by the combustion engine such that a rotational speed of the combustion engine correlates or almost correlates to a rotational speed necessary for propelling the vehicle at a new selected gear with a second gear ratio, and iv. engaging the new selected gear, wherein the engine and the motor/generator are controlled in such a way as to avoid a super charger of the combustion engine being unloaded before, during and after the gearshift.