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Design of Autoland Controller Functions with Multiobjective Optimization

Looye, Gertjan and Joos, Hans-Dieter (2006) Design of Autoland Controller Functions with Multiobjective Optimization. Journal of Guidance, Control, and Dynamics, 29 (2).

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The application of multiobjective optimization to the design of longitudinal automatic-landing control laws for a civil aircraft is discussed. The control laws consist of a stability and command augmentation, a speed/flight path tracking, a glide-slope guidance, and a flare function. Multiobjective optimization is used to synthesize the free parameters in these controller functions. Performance criteria are thereby computed from linear as well as nonlinear analysis. Robustness to uncertain and varying parameters is addressed via linear robustness criteria and via statistical criteria computed from online Monte Carlo analysis. For each controller function, an optimization problem setup is defined. Starting with the inner loops, the synthesis is sequentially expanded with each of these setups, eventually leading to simultaneous optimization of all controller functions. In this way, dynamic interactions between controller components are accounted for, an inner loops can be compromised such that these can be used in combination with different outer loop functions. This reduces controller complexity with providing good overall contral system performance.

Document Type:Article
Title:Design of Autoland Controller Functions with Multiobjective Optimization
AuthorsInstitution or Email of Authors
Joos, Hans-DieterUNSPECIFIED
Journal or Publication Title:Journal of Guidance, Control, and Dynamics
Keywords:autoland controller functions
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > System Dynamics and Control (former Control Design Engineering)
Deposited By: Monika Klauer
Deposited On:20 Oct 2008
Last Modified:12 Dec 2013 20:33

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