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Robust impedance active control of flight control devices

Condomines, Jean-Philippe and Defaÿ, François and Alazard, Daniel Robust impedance active control of flight control devices. (2014) In: World Congress of the International Federation of Automatic Control (IFAC), 24 August 2014 - 29 August 2014 (Cape Town, South Africa).

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Official URL: https://doi.org/10.3182/20140824-6-ZA-1003.01001

Abstract

This paper focuses on the control of the mechanical impedance of an aircraft yoke. The control architecture involves an inner position servo-loop and an outer loop feedbacking the torque/force measurement to the position reference input through the required admitance model. Two different approaches are presented for the inner position servo-loop design: a classical Proportional-Derivative control and a structured Hinfinity control. These two approaches are compared from the performance/robustness trade off point of view. The performance and robustness indexes are respectively the maximal variation on the required admittance model and the maximal pilot own impedance supported by the closed loop system before to become unstable. These indexes are computed using real mu-analysis. Both approaches are implemented on an experimental test-bed. Analysis and exprimental results with a pilot in the loop confirm that the structured H_infinity$ controller is the best solution.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Vol. 47 n° 3
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited By: francois defay
Deposited On:10 Sep 2014 15:04

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