Model-based fault detection and isolation design for flight-critical actuators in a harsh environment
BLUTEAU, Bruno
Laboratoire de l'intégration, du matériau au système [IMS]
ESTIA INSTITUTE OF TECHNOLOGY
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Laboratoire de l'intégration, du matériau au système [IMS]
ESTIA INSTITUTE OF TECHNOLOGY
Language
EN
Communication dans un congrès
This item was published in
Digital Avionics Systems Conference (DASC), 2012 IEEE/AIAA 31st, 31st Digital Avionics Systems Conference, 2012-10-14, Williamsburg. 2012-10p. 7D5-1 - 7D5-8
English Abstract
Safety-impact on flight-critical systems such as flight or engine control systems is a major concern for aircraft equipment designers in civil and military fields. Current avionic equipments related to safety-critical ...Read more >
Safety-impact on flight-critical systems such as flight or engine control systems is a major concern for aircraft equipment designers in civil and military fields. Current avionic equipments related to safety-critical systems are able to detect trivial faults such as loss of power, short circuits, open circuits or threshold overflow. The occurrence of these faults in actuator control loops, if detected, triggers a fail-safe mode. So, although system availability is reduced, the required safety level can still be ensured. This paper emphasizes a design methodology of nonlinear model-based FDI1 algorithms applied to a Hybrid Stepper Motor (HSM). The proposed design methodology combines a nonlinear dynamic inversion and residual generation using standard continuous Kalman Filter. The proposed fault detection method is based on residual mean-checking analysis, where the parameters are tuned with Kriging method.Read less <
English Keywords
Kalman filters
actuators
air safety
aircraft control
avionics
failure analysis
fault diagnosis
nonlinear dynamical systems
statistical analysis
stepping motors
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