Bleed valve drive controller for aircraft gas turbine engine

摘要

PROBLEM TO BE SOLVED: To provide an bleed valve drive control device for detecting adhesion of foreign matter to an bleed valve and preventing the movement from deteriorating by controlling the drive of the bleed valve. An engine that drives a turbine with high-temperature and high-pressure gas from a compressor to obtain propulsive force, an bleed valve that draws compressed intake air to the outside, and an ECU that controls energization of an electric actuator that opens and closes the bleed valve. (S10), the current value Ia is energized so as to be the required opening degree θr of the bleeding valve required from the operating state of the engine, and when the current value Ia exceeds the predetermined current value Ib, the bleeding valve fails. It is estimated that the opening degree becomes the fully open opening degree θw, and the current value Ic exceeding the predetermined current value Ib is commanded to be energized for a predetermined time (S12, S16, S18), and after the predetermined time elapses, the valve is closed to the required opening degree θr. When the current value Id is energized (S20) and it is determined that the current value Ib or less is equal to or less than the predetermined current value Ib, the bleed valve is determined to be normal (S22, S24). [Selection diagram] Fig. 2