Automatic diagnostic method for at least one engine equipping an aircraft, aircraft and arrangement implementing the method
AssigneeAirbus Helicopters
InventorFlorent ESTERLE
Life of this patent
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Abstract
An automatic diagnostic method for monitoring a state of health of at least one engine equipping an aircraft, the method comprising the periodic in-flight acquisition of a plurality of flight data, with sensors, the plurality of flight data being representative of a plurality of physico-chemical parameters, the identification, with a controller, from the plurality of flight data, of at least one predetermined engine health check phase and the isolation, with the controller, of a sequence of significant data from the plurality of flight data produced during the at least one engine health check phase.
Claims14
An automatic diagnostic method for monitoring a state of health of at least one engine equipping an aircraft, the method comprising the following steps:
- periodic in-flight acquisition of a plurality of flight data with sensors, the plurality of flight data being representative of a plurality of physico-chemical parameters;
- identification, with a controller, from the plurality of flight data, of at least one predetermined engine health check phase and isolation, with the controller, of a sequence of significant data from the plurality of flight data produced during the at least one engine health check phase, the significant data of a sequence being acquired successively;
- and
- for each engine health check phase, calculation, with the controller, of at least one engine health index as a function of at least one control parameter of the at least one engine from the plurality of physico-chemical parameters,
- wherein the method comprises the following steps:
- for each engine health index, generation, with the controller, of a point of an at least one-dimensional map, each point associating the engine health index with at least one value of at least one predetermined state parameter from the plurality of physico-chemical parameters, each predetermined state parameter corresponding to a dimension of the map, each value corresponding respectively to a value of the at least one predetermined state parameter at an instant in the sequence of significant data for which the engine health index is calculated;
- grouping together, with the controller, of the points of the map into at least one class of interest, each class of interest corresponding to a group of points spaced apart from each other in the map by a predetermined maximum distance;
- monitoring, with the controller, of the engine health indices corresponding to the points of the at least one class of interest;
- and
- generation, with an alerter, of an information signal depending on the engine health indices monitored during the monitoring step.
Dependencies are inferred from the claim text.