Autonomous parafoil flaring control system for eVTOL aircraft

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dc.contributor.authorDoran, Stephen
dc.contributor.authorSouanef, Toufik
dc.contributor.authorWhidborne, James F.
dc.date.accessioned2025-02-28T12:26:32Z
dc.date.available2025-02-28T12:26:32Z
dc.date.freetoread2025-02-28
dc.date.issued2025-02-14
dc.date.pubOnline2025-02-14
dc.description.abstractReducing landing kinetic energy during emergency landings is critical for minimising occupant injury in eVTOL aircraft. This study presents the development of an autonomous parafoil control system for impact point targeting and flare control. A model predictive controller for a six-degree-of-freedom parafoil and eVTOL payload model was designed incorporating an inner-loop flare controller for descent speed-based flare height adjustments and an outer-loop nonlinear model predictive control (MPC) to minimize line-of-sight error. Two guidance methods were explored: a standard fixed impact point approach and an adaptive method that adjusts the target point dynamically to account for horizontal travel during flaring. The standard method outperformed the uncontrolled system in 79.64% of cases, while the adaptive method achieved success in 40.73% of scenarios, with both methods maintaining vertical landing velocities below 8 m/s in all tested cases. Controller performance degraded under higher wind speeds and large control derivative variations, with the adaptive method position error attributed to flare distance estimation inaccuracies.
dc.description.journalNameAerospace
dc.identifier.citationDoran S, Souanef T, Whidborne JF. (2025) Autonomous parafoil flaring control system for eVTOL aircraft. Aerospace, Volume 12, Issue 2, February 2025, Article number 145
dc.identifier.eissn2226-4310
dc.identifier.elementsID564672
dc.identifier.issn2226-4310
dc.identifier.issueNo2
dc.identifier.urihttps://doi.org/10.3390/aerospace12020145
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23531
dc.identifier.volumeNo12
dc.languageEnglish
dc.language.isoen
dc.publisherMDPI
dc.publisher.urihttps://www.mdpi.com/2226-4310/12/2/145
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject4007 Control Engineering, Mechatronics and Robotics
dc.subject40 Engineering
dc.subject4010 Engineering Practice and Education
dc.subject4001 Aerospace engineering
dc.titleAutonomous parafoil flaring control system for eVTOL aircraft
dc.typeArticle
dcterms.dateAccepted2025-02-10

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