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Design of Autoland Controller Functions with Multi-Objective Optimization

Looye, G. and Joos, H.-D. (2002) Design of Autoland Controller Functions with Multi-Objective Optimization. Proc. of AIAA Guidance, Navigation, and Control Conference and Exhibit, 2002-08-05 - 2002-08-08, Monterey, CA.

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Abstract

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 stability and command augmentation, speed / flight path tracking, 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 a multimodel approach, via robustness criteria, and via statistical criteria. For each controller function an optimization problem setup is defined. Starting with the inner loops, the synthesis is sequentiallv 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 and inner loops can be compromised so that these can be used in combination with different outer loop functions. This reduces controller complexity while providing good overall control system performance.

Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2003,
Title:Design of Autoland Controller Functions with Multi-Objective Optimization
Authors:
AuthorsInstitution or Email of Authors
Looye, G.UNSPECIFIED
Joos, H.-D.UNSPECIFIED
Date:2002
Status:Published
Keywords:OPTIMAL CONTROL, CONTROLLERS, CONTROL THEORY, AUTOMATIC LANDING CONTROL, PASSENGER AIRCRAFT, ROBUST CONTROL
Event Title:Proc. of AIAA Guidance, Navigation, and Control Conference and Exhibit
Event Location:Monterey, CA
Event Type:international Conference
Event Dates:2002-08-05 - 2002-08-08
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 - Flexible Aircraft (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:12 Dec 2013 20:02

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