METHOD TO COMPENSATE FOR THE KINEMATIC WEAR OF A CONTROL OF AN ACTUATOR OF A VARIABLE GEOMETRY TURBOCOMPRESSOR

摘要

A method of compensating the kinematic wear of a control of an electric actuator (20) of a variable geometry turbocharger provided with a plurality of vanes able to be rotated by said actuator (20) to adjust a exhaust gas flow, comprising:- A storage step during a learning phase of a voltage of a position sensor corresponding to an abutment of said actuator (20) against a stop device (30) when the turbocharger is in the state new,a step of storing a new voltage of said position sensor corresponding to a resetting of said actuator (20) after a given period of operation or a number of kilometers traveled,a step of comparing said memorized voltages during said learning phase and in operation to quantify a wear (Pr) of a control kinematics, anda step of compensating for said wear (Pr) of the control kinematics.