Control Surface Fault Diagnosis with Specified Detection Probability - Real Event Experiences

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedings – Annual report year: 2013Researchpeer-review

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Diagnosis of actuator faults is crucial for aircraft since loss of actuation can have catastrophic consequences. For autonomous aircraft the steps necessary to achieve fault tolerance is limited when only basic and non-redundant sensor and actuators suites are present. Through diagnosis that exploits analytical redundancies it is, nevertheless, possible to cheaply enhance the level of safety. This paper presents a method for diagnosing control surface faults by using basic sensors and hardware available on an autonomous aircraft. The capability of fault diagnosis is demonstrated obtaining desired levels of false alarms and detection probabilities. Self-tuning residual generators are employed for diagnosis and are combined with statistical change detection to form a setup for robust fault diagnosis. On-line estimation of test statistics is used to obtain a detection threshold and a desired false alarm probability. A data based method is used to determine the validity of the methods proposed. Verification is achieved using real data and shows that the presented diagnosis method is efficient and could have avoided incidents where faults led to loss of aircraft.
Original languageEnglish
Title of host publicationProceedings of the 2013 International Conference on Unmanned Aircraft Systems
Publication date2013
ISBN (Print)978-1-4799-0815-8
Publication statusPublished - 2013
Event2013 International Conference on Unmanned Aircraft Systems - Grand Hyatt , Atlanta, Georgia, United States
Duration: 28 May 201331 May 2013


Conference2013 International Conference on Unmanned Aircraft Systems
LocationGrand Hyatt
CountryUnited States
CityAtlanta, Georgia
CitationsWeb of Science® Times Cited: No match on DOI

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ID: 55501399