Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control

Previous works by our group evidenced stability problems associated with flight control law design for flexible aircraft regarding gain scheduling. This paper proposes an output feedback fuzzy-based gain scheduling approach to adequate closed-loop response in a broader range of the flight envelope....

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Main Authors: Guilherme C. Barbosa, Flávio J. Silvestre
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/12/6/557
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author Guilherme C. Barbosa
Flávio J. Silvestre
author_facet Guilherme C. Barbosa
Flávio J. Silvestre
author_sort Guilherme C. Barbosa
collection DOAJ
description Previous works by our group evidenced stability problems associated with flight control law design for flexible aircraft regarding gain scheduling. This paper proposes an output feedback fuzzy-based gain scheduling approach to adequate closed-loop response in a broader range of the flight envelope. This method applies a variation of the controller gains based on the membership function design for all the varying parameters, such as dynamic pressure. It aims for performance improvement while enforcing global stability gain scheduling. The technique was demonstrated for the flexible ITA X-HALE aircraft nonlinear model and compared to the classical interpolation-based gain scheduling technique. The results revealed that fuzzy-based gain scheduling can effectively handle high-order systems while ensuring global system stability, leading to an overall improvement in performance.
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institution Kabale University
issn 2226-4310
language English
publishDate 2025-06-01
publisher MDPI AG
record_format Article
series Aerospace
spelling doaj-art-7dcaadfb234d49bc9f332420c4a6d68c2025-08-20T03:24:26ZengMDPI AGAerospace2226-43102025-06-0112655710.3390/aerospace12060557Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft ControlGuilherme C. Barbosa0Flávio J. Silvestre1Flight Mechanics, Flight Control and Aeroelasticity, Technische Universität, 10623 Berlin, GermanyFlight Mechanics, Flight Control and Aeroelasticity, Technische Universität, 10623 Berlin, GermanyPrevious works by our group evidenced stability problems associated with flight control law design for flexible aircraft regarding gain scheduling. This paper proposes an output feedback fuzzy-based gain scheduling approach to adequate closed-loop response in a broader range of the flight envelope. This method applies a variation of the controller gains based on the membership function design for all the varying parameters, such as dynamic pressure. It aims for performance improvement while enforcing global stability gain scheduling. The technique was demonstrated for the flexible ITA X-HALE aircraft nonlinear model and compared to the classical interpolation-based gain scheduling technique. The results revealed that fuzzy-based gain scheduling can effectively handle high-order systems while ensuring global system stability, leading to an overall improvement in performance.https://www.mdpi.com/2226-4310/12/6/557Takagi–Sugeno fuzzygain schedulingMIMO controlflexible aircraftoutput feedback
spellingShingle Guilherme C. Barbosa
Flávio J. Silvestre
Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control
Aerospace
Takagi–Sugeno fuzzy
gain scheduling
MIMO control
flexible aircraft
output feedback
title Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control
title_full Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control
title_fullStr Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control
title_full_unstemmed Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control
title_short Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control
title_sort output feedback fuzzy gain scheduling for mimo systems applied to flexible aircraft control
topic Takagi–Sugeno fuzzy
gain scheduling
MIMO control
flexible aircraft
output feedback
url https://www.mdpi.com/2226-4310/12/6/557
work_keys_str_mv AT guilhermecbarbosa outputfeedbackfuzzygainschedulingformimosystemsappliedtoflexibleaircraftcontrol
AT flaviojsilvestre outputfeedbackfuzzygainschedulingformimosystemsappliedtoflexibleaircraftcontrol