Hybrid clutch management method

A method for managing the starting of a combustion engine of a motor vehicle drivetrain, the drivetrain comprising:

• a combustion engine,
• an electric motor,
• a gearbox,
• a connection clutch arranged between the combustion engine and the electric motor to transmit a torque between the combustion engine and the electric motor,
• a main clutch arranged between the gearbox and the electric motor to transmit a torque between the electric motor and the gearbox,
• a torsion damper arranged between the combustion engine and the connection clutch, the torsion damper having a defined operating range between a direct threshold torque and a reverse threshold torque, in which method, from an initial state in which the electric motor generates a drive torque and the combustion engine is stopped, the main clutch is kept in an engaged state so as to transmit the torque generated by the electric motor to the gearbox, and the connection clutch is controlled so as to transmit a drive torque from the electric motor to the combustion engine in order to start the combustion engine and perform a torque-limiting function between the combustion engine and the electric motor in order to limit the torque passing through the torsion damper in the operating range of said torsion damper.