METHOD FOR CONTROLLING THE STARTING OF A HEAT ENGINE IN A VEHICLE EQUIPPED WITH A HYBRID TRANSMISSION

The method for controlling the starting of an internal combustion engine (MT) is implemented in an electric hybrid vehicle having a powertrain (eGMP) comprising the internal combustion engine and a hybrid transmission system (eTR), the transmission system having a rotating electric machine (ME) that is coupled to the engine via a clutch device (K). According to the invention, the method comprises, during a phase for starting the engine with the electric machine while the vehicle is rolling, controlling (M_EB) the clutch by means of a maximum clutch torque setpoint determined according to a predetermined maximum speed gradient (LGR) and a moment of inertia (Jmth) of the engine, and controlling (M_MT) the engine by means of a maximum engine torque setpoint (CM) determined according to a difference (EC) between the maximum clutch torque setpoint and a torque (Ce) transmitted by the clutch.