SYSTEM FOR CONTROLLING THE VANES OF A VARIABLE GEOMETRY TURBINE WITH LEARNING AND LINEARISATION

摘要

A system for controlling the vanes of a variable geometry turbine supplying an internal combustion engine of a motor vehicle, comprising a subtractor (5) capable of determining the deviation between a supercharging pressure setpoint and measurement, a regulator (4) capable of transmitting an output control signal to the vanes of a variable geometry turbine, a mapping (3) of the position of the vanes on the basis of the rotational speed of the engine and a torque setpoint, a determination means (1) for determining the learning conditions capable of transmitting a control signal to a learning means (2) for learning the control which is capable of transmitting a correction to the control signal of the vanes on the basis of the signals of the mapping and of the regulator, the means (2) for learning being capable of learning the prepositioning signals on receipt of a signal from the determination means (1).