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Development and Concept Demonstration of a Physics Based Adaptive Flight Envelope Protection Algorithm

Lombaerts, Thomas and Looye, Gertjan and Seefried, Andreas and Neves, Miguel and Bellmann, Tobias (2016) Development and Concept Demonstration of a Physics Based Adaptive Flight Envelope Protection Algorithm. In: 4th IFAC International Conference on Intelligent Control and Automation Sciences (ICONS 2016). 4th IFAC Conference on Intelligent Control and Automation, 01.-03. Jun. 2016, Reims, Frankreich. DOI: 10.1016/j.ifacol.2016.07.121

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Abstract

This paper discusses the development of an adaptive protection algorithm which is based on a physical approach, with the purpose to keep a closed loop aircraft with manual control laws within the actual safe flight envelope, even in the presence of failures or disturbances. Adaptive estimation of the flight envelope guarantees that not only flap changes, but also damage (e.g. icing) and external disturbances such as wind can be taken into account. This method is robust with respect to uncertainties in the estimates for the aerodynamic properties. This updated information is used in the flight control laws to prevent loss of control in flight. This development can extend the functional envelope of the nominal law and reduce the need to switch from nominal to alternate law in the presence of certain failures. This algorithm has been applied on a fairly matched A320-type of simulation model and the setup has been implemented in the DLR Robotic Motion Simulator at the German Aerospace Center as a concept demonstrator.

Item URL in elib:https://elib.dlr.de/110581/
Document Type:Conference or Workshop Item (Speech)
Title:Development and Concept Demonstration of a Physics Based Adaptive Flight Envelope Protection Algorithm
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lombaerts, ThomasThomas.Lombaerts (at) dlr.deUNSPECIFIED
Looye, GertjanGertjan.Looye (at) dlr.deUNSPECIFIED
Seefried, Andreasandreas.seefried (at) dlr.deUNSPECIFIED
Neves, MiguelMiguel.Neves (at) dlr.deUNSPECIFIED
Bellmann, TobiasTobias.Bellmann (at) dlr.deUNSPECIFIED
Date:2 June 2016
Journal or Publication Title:4th IFAC International Conference on Intelligent Control and Automation Sciences (ICONS 2016)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1016/j.ifacol.2016.07.121
Status:Published
Keywords:Aircraft control; Envelopes; Fault-tolerant systems; Adaptive algorithms; Physical models
Event Title:4th IFAC Conference on Intelligent Control and Automation
Event Location:Reims, Frankreich
Event Type:international Conference
Event Dates:01.-03. Jun. 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Seefried, Andreas
Deposited On:25 Jan 2017 15:02
Last Modified:25 Jan 2017 17:23

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