An adaptive unknown input observer for fault detection and isolation of aircraft actuator faults

Hanmin Lee; Steve Snyder; Naira Hovakimyan

doi:10.2514/6.2014-0266

An adaptive unknown input observer for fault detection and isolation of aircraft actuator faults

Hanmin Lee, Steve Snyder, Naira Hovakimyan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper presents a method for fault detection and isolation based on linearized aircraft models. A model-matching approach is employed using a bank of adaptive linear unknown input observers (UIOs). The well-known UIO technique allows for the rejection of structured disturbances, while the addition of an adaptive term handles the unknown nonlinearities in the system. Both the observer error and the estimate of the nonlinearity are used in the formation of the residual. Nonlinear aircraft simulations verify the performance of the proposed method.

Original language	English (US)
Title of host publication	AIAA Guidance, Navigation, and Control Conference
DOIs	https://doi.org/10.2514/6.2014-0266
State	Published - Feb 28 2014
Event	AIAA Guidance, Navigation, and Control Conference 2014 - SciTech Forum and Exposition 2014 - National Harbor, MD, United States Duration: Jan 13 2014 → Jan 17 2014

Publication series

Name	AIAA Guidance, Navigation, and Control Conference

Other

Other	AIAA Guidance, Navigation, and Control Conference 2014 - SciTech Forum and Exposition 2014
Country	United States
City	National Harbor, MD
Period	1/13/14 → 1/17/14

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ASJC Scopus subject areas

Aerospace Engineering
Control and Systems Engineering

Cite this

Lee, H., Snyder, S., & Hovakimyan, N. (2014). An adaptive unknown input observer for fault detection and isolation of aircraft actuator faults. In AIAA Guidance, Navigation, and Control Conference (AIAA Guidance, Navigation, and Control Conference). https://doi.org/10.2514/6.2014-0266

Lee, H, Snyder, S & Hovakimyan, N 2014, An adaptive unknown input observer for fault detection and isolation of aircraft actuator faults. in AIAA Guidance, Navigation, and Control Conference. AIAA Guidance, Navigation, and Control Conference, AIAA Guidance, Navigation, and Control Conference 2014 - SciTech Forum and Exposition 2014, National Harbor, MD, United States, 1/13/14. https://doi.org/10.2514/6.2014-0266

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Access to Document

10.2514/6.2014-0266