Generic 4D flight guidance based on differential flatness

Wen Chi Lu (1) , Lili Duan (1) , Thierry Miquel (1, 2) , Felix Mora-Camino (3)

1 ENAC - Ecole Nationale de l'Aviation Civile
2 DGAC - Direction Générale de l'Aviation Civile
3 LAAS-DISCO - Équipe DIagnostic, Supervision et COnduite

With the increase of traffic density, it appears of interest to design more versatile guidance systems for civil transportation aircraft. In this paper, a new approach is proposed to design a guidance system able to achieve 4D trajectory tracking. Flight guidance dynamics are shown to be implicit differentially flat with respect to the inertial position of an aircraft. To overcome the numerical difficulty implied by this implicit property, artificial neural networks are introduced to capture the differential relationship between guidance parameters and attitude control inputs. A corrective term is also introduced to take into account the effects of model approximation, neural network errors and disturbances.

Mots clés: flight control; tracking; nonlinear control; neural networks; corrective feedback

Domaines: Sciences de l'ingénieur [physics]; Automatique / Robotique

Wen Chi Lu, Lili Duan, Thierry Miquel, Felix Mora-Camino. Generic 4D flight guidance based on differential flatness. ACA 2007, 17th IFAC Symposium on Automatic Control in Aerospace, Jun 2007, Toulouse, France. pp 353-358, ⟨10.3182/20070625-5-FR-2916.00061⟩. ⟨hal-00938155⟩