Patent ID: 7891180
Filing Date: 2011-02-22
Classification: G05B

Abstract:
1. A method of monitoring movement of a plurality of actuators, each acting on a flight control of an aircraft, which is implemented by a monitoring device applied on the aircraft, wherein the flight control is assisted power-wise by a hydraulic circuit and the hydraulic circuit being able to deliver a hydraulic failure indication, a displacement servo-control for each actuator is generated from a respective actuator position indication and a respective position set-point indication computed by a computation unit, wherein an alarm phase is initiated on detection of the presence of a servo-control operating servo-control operating error, the alarm phase is initiated at a time t 0 and being kept open as long as the error is present, wherein the alarm phase comprises the following steps: determining whether at least one actuator is in a blocked state or in a divergent state,