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Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm

Lombaerts, Thomas and Looye, Gertjan and Ellerbroek, Joost and Rodriguez y Martin, Mitchell (2016) Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm. AIAA 2016 Guidance, Navigation and Control Conference, 4. - 8. Januar 2016, San Diego. doi: 10.2514/6.2016-0093.

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2016-0093


This paper discusses the design and evaluation of an efficient safe flight envelope protection method, for keeping a closed loop aircraft with manual control laws within the safe envelope bounds. This flight envelope is estimated adaptively, so that configuration changes and possible impairment can be taken into account. The updated information of the safe envelope is used in the flight control laws to prevent loss of control in flight. It has been found that a control architecture involving separate pilot command filtering is particularly well suited to incorporate these adaptive protections. Moreover, haptic feedback to the pilot controls can be included as well, based on the same adaptive bounds. This has the potential to further increase the flight crew awareness about the risk of losing control in flight. These algorithms have been evaluated in the Simona Research Simulator at Delft University of Technology, to investigate the impact on the awareness of the crew. Commercial airline crews flew multiple challenging approach and landing scenarios in a relevant environment. Results show that the algorithms support the flight crew significantly. They contribute to ’care-free’ flying and to avoiding loss of control in flight.

Item URL in elib:https://elib.dlr.de/102315/
Document Type:Conference or Workshop Item (Speech)
Title:Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lombaerts, Thomasthomas.lombaerts (at) dlr.deUNSPECIFIED
Looye, Gertjangertjan.looye (at) dlr.deUNSPECIFIED
Ellerbroek, JoostTU DelftUNSPECIFIED
Rodriguez y Martin, MitchellTU DelftUNSPECIFIED
Date:4 January 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2016-0093
Keywords:safe flight envelope, envelope protection, adaptive algorithms, simulator evaluation, piloted evaluation
Event Title:AIAA 2016 Guidance, Navigation and Control Conference
Event Location:San Diego
Event Type:international Conference
Event Dates:4. - 8. Januar 2016
Organizer:American Institute of Aeronautics and Astronautics
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 (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Lombaerts, Dr Thomas
Deposited On:30 May 2016 16:16
Last Modified:20 Jun 2021 15:47

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