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Building Hybrid Automata of Complex Physical Systems for Real-time Applications

Mosterman, P. J. and Biswas, G. (1999) Building Hybrid Automata of Complex Physical Systems for Real-time Applications. In: Proceedings of the Conference on Decision and Control, pp. 3514-3519. Conference on Decision and Control, 1999-12, Phoenix.

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Abstract

Dynamic behavior of complex physical systems is often nonlinear and includes multiple temporal scales. Singular perturbation methods decouple the fast and slow behavior and by assuming that the fast behavior is at a quasi steady state, the slow behavior of the system can be analyzed. The decoupling reduces the complex system of ordinary differential equations (ODEs) to simpler ODEs that allow fixed time step integration methods, and, therefore, are suitable for real-time applications. This model reduction may cause discontinuous jumps in the initial values of model variables. This paper applies and extends singular perturbation methods to compute discontinuous state changes for piecewise continuous, hybrid, models when the model configuration changes. Computing the explicit state change allows the use of hybrid automata as modeling framework when augmented with execution semantics for state vector updates around discontinuities.

Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2000,
Title:Building Hybrid Automata of Complex Physical Systems for Real-time Applications
Authors:
AuthorsInstitution or Email of Authors
Mosterman, P. J.UNSPECIFIED
Biswas, G.Vanderbilt University, Nashville
Date:1999
Journal or Publication Title:Proceedings of the Conference on Decision and Control
Page Range:pp. 3514-3519
Editors:
EditorsEmail
IEEE, UNSPECIFIED
Status:Published
Keywords:singular perturbation; model reduction; hybrid systems; real time simulation; physical modeling
Event Title:Conference on Decision and Control
Event Location:Phoenix
Event Type:international Conference
Event Dates:1999-12
Organizer:IEEE
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 20:01

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