AIRCRAFT-ENGINE TREND MONITORING SYSTEM
First Claim
1. A method for monitoring performance of an engine, comprising:
- obtaining engine performance data;
obtaining environmental data;
determining if the engine is operating within a predetermined parameter set;
obtaining, when the engine is operating within the predetermined parameter set, previous performance data from at least one previous use of the engine when the engine was operating within the predetermined parameter set;
comparing the performance data to the previous performance data; and
outputting results of comparing the data.
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Accused Products
Abstract
Methods and systems for aircraft engine trend monitoring include periodically recording the outputs of engine-condition sensors and analyzing the results to examine piston-engine performance trends and predict the need for engine maintenance. Various analyses can be performed, separately or in parallel, including comparing the current parameter values with values recorded for that parameter in previous instances of similar operating conditions; comparing parameter values to predetermined nominal ranges; and detecting parameter values that exhibit trends over time that if followed would result in out-of-bound readings. Sensed parameter values can also be used to detect when recommended engine operating conditions are being exceeded. By using the results of the analyses to inform engine maintenance scheduling and provide alerts to the pilot and maintenance staff regarding recommended engine performance trends and/or operating condition exceedances, the methods and systems contribute to enhancing the level of safety that can be achieved despite significant maintenance-budget reductions.
51 Citations
26 Claims
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1. A method for monitoring performance of an engine, comprising:
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obtaining engine performance data;
obtaining environmental data;
determining if the engine is operating within a predetermined parameter set;
obtaining, when the engine is operating within the predetermined parameter set, previous performance data from at least one previous use of the engine when the engine was operating within the predetermined parameter set;
comparing the performance data to the previous performance data; and
outputting results of comparing the data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification