METHOD FOR CONTROLLING TORQUES WHEN CHANGING GEAR IN A GEARBOX OF A HYBRID VEHICLE

摘要

Method for controlling torques for a hybrid vehicle, during a change in gear of a gearbox (4) connecting a combustion engine (2) to a first wheelset, this vehicle comprising an electric machine (20) which drives the second wheelset (22), characterized in that in order to open the clutch (8) the method decreases the control by torque of the combustion engine (2) which targets a low calculated target torque level, and correspondingly reduces the torque setpoint for the clutch, then at the instant (t1) when the target torque is reached it applies an abrupt drop in the torque setpoint and an instantaneous instruction to open the clutch (8), the target torque being calculated so that the drop forms an offset that compensates for the variation in inertia of the drivetrain due to the complete opening of the clutch.