| 摘要 |
Method and device for detecting oscillatory failures in a position servocontrol subsystem of an aircraft control surface. The detection device ( 1 ) comprises means ( 19 ) for estimating, using a control surface control instruction, a theoretical position corresponding to a reference position of the control surface, means ( 21 ) for computing the difference between this theoretical position and an actual position measured by a sensor so as to form a residual value, and means ( 23 ) for comparing this residual value to a threshold value and making a count of the overshoots of this threshold value in order to detect an oscillatory failure.
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