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Control of a launcher in atmospheric ascent with guardian maps

Saussié, David and Dubanchet, Vincent and Bérard, Caroline and Saydy, Lahcen and Gourdeau, Richard Control of a launcher in atmospheric ascent with guardian maps. (2011) In: 8th International ESA Conference on Guidance, Navigation & Control Systems - GNC 2011, 05-10 Jun 2011, Karlovy Vary, Czech Republic .

(Document in English)

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This paper describes the synthesis of a SISO scheduled controller for a launcher vehicle. The problem consists in designing a control law which will be valid on the atmospheric ascent trajectory from time 25 s to time 60 s, while ensuring robustness and performance requirements. Moreover a flexible model with two bending modes is considered, making the problem more challenging. An algorithm based upon guardian maps has been retained in order to find an a priori fixed architecture controller. The algorithm yields a sequence of controllers that ensures that pole confinement constraints are fulfilled for any time between 25 s and 60 s. The user can then interpolate those controllers to find a scheduled controller with respect to time.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Ecole Polytechnique de Montréal (CANADA)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Laboratory name:
Deposited On:07 Mar 2012 13:01

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