METHOD AND SYSTEM FOR CONTROLLING A GEARBOX ACTUATOR OF A TRANSMISSION FOR A HYBRID-PROPULSION MOTOR VEHICLE

Disclosed is a method for controlling at least one gearbox actuator (14) of a selection mechanism (10) of a transmission (20) for a hybrid-propulsion motor vehicle comprising a heat engine and at least one electric machine, said transmission (20) comprising at least one dog clutch system (26) comprising dogs secured to a fork (22, 24) which is configured to be moved longitudinally along the axis of the drive shaft by the gearbox actuator (14), the selection mechanism (10) comprising engagement fingers (12), an inter-locking mechanism (16) and a mechanical system (18) for stabilising the forks. The engaged ratio is disengaged depending on the position of the actuator (14) obtained from a position sensor, the position of the fork (22, 24) is returned to the attraction zone of the system (18) for stabilising the forks by iteratively determining the position of the actuator (14) as a function of the fork (22, 24); and the position of the actuator (14) is adjusted to its central position in order to realign the inter-locking mechanism (16) with the engagement finger (12).