Patent ID: 8649954

Claim:
A system for controlling angular position of variable-pitch stator blades of a turbine engine compressor including at least two spools, each with a rotation speed, for a turbine engine operating at steady speed, the system comprising: circuitry configured to compute an angular set position of the blades as a function of one of rotation speeds; determine angular positions of the blades; measure fuel flow rate of the turbine engine; associate successive angular positions of the blades with the fuel flow rates of the turbine engine measured at the angular positions; determine a correcting angle; compute a correcting angle as a function of the difference between the fuel flow rates measured between two successive angular positions of the blades; and compute an optimized set position by adding the correcting angle to the set angular position; and an actuator configured to control the angular position of the blades as a function of the optimized set position.