Abstract: A method for controlling a fuel metering device with a movable metering element, comprising at least two iterations of the following steps: a detection (E1) of a possible change in the operating state among two position sensors of the metering element, if no change in the operating state is detected, a determination (E2_1) of the position of the metering element from an average of the measurements of the sensors or otherwise a determination (E2_2) from the non-defective sensor, a determination (E4) of a fuel flow rate setpoint, a conversion (E5) of the flow rate setpoint, a determination (E6) of a command of displacement of the metering element, a control (E7) of the position of the metering element, and if a change in the operating state is detected, the calculation of an instantaneous fuel flow rate from the position of the metering element, and, during the second iteration of the method, the determination of the flow rate setpoint according to instantaneous flow rate to match the position setpoint t

Abstract: A system for monitoring the state of health of a monitored aircraft engine comprises an anomaly detection unit which analyses engine operating parameters and raises an alarm if a result of the analysis of one of the engine operating parameters crosses a threshold, the alarm being associated with a probability of a given type of engine damage occurring. The system further comprises an engine operating conditions monitoring unit which determines a state of wear of the engine, and an alarm corroboration unit which weights the said probability of occurrence by the determined state of wear. The invention is applicable to the preventive maintenance of turbomachines.

Abstract: A method for controlling a fuel metering device with a movable metering element, comprising at least two iterations of the following steps: a detection (E1) of a possible change in the operating state among two position sensors of the metering element, if no change in the operating state is detected, a determination (E2_1) of the position of the metering element from an average of the measurements of the sensors or otherwise a determination (E2_2) from the non-defective sensor, a determination (E4) of a fuel flow rate setpoint, a conversion (E5) of the flow rate setpoint, a determination (E6) of a command of displacement of the metering element, a control (E7) of the position of the metering element, and if a change in the operating state is detected, the calculation of an instantaneous fuel flow rate from the position of the metering element, and, during the second iteration of the method, the determination of the flow rate setpoint according to instantaneous flow rate to match the position setpoint t

Abstract: A system for monitoring the state of health of a monitored aircraft engine comprises an anomaly detection unit which analyses engine operating parameters and raises an alarm if a result of the analysis of one of the engine operating parameters crosses a threshold, the alarm being associated with a probability of a given type of engine damage occurring. The system further comprises an engine operating conditions monitoring unit which determines a state of wear of the engine, and an alarm corroboration unit which weights the said probability of occurrence by the determined state of wear. The invention is applicable to the preventive maintenance of turbomachines.

Abstract: A method for monitoring an aircraft thrust reverser having stowable doors, the thrust reverser being a reverser having hydraulic actuators equipped with switches arranged to each return a data item on the position of the doors, the engine including a computer configured to make measurements of a representative parameter of the position of the switches based on the data returned by the switches, includes computation of one or a plurality of statistical indicators of the parameter measured and an analysis of the temporal progression of the statistical indicator(s) computed. The invention also applies to a computer program for the implementation of this method.

Abstract: A method for monitoring an aircraft thrust reverser having stowable doors, the thrust reverser being a reverser having hydraulic actuators equipped with switches arranged to each return a data item on the position of the doors, the engine including a computer configured to make measurements of a representative parameter of the position of the switches based on the data returned by the switches, includes computation of one or a plurality of statistical indicators of the parameter measured and an analysis of the temporal progression of the statistical indicator(s) computed. The invention also applies to a computer program for the implementation of this method.