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Modelica Hybrid Modeling and Efficient Simulation
Mattsson, Sven Erik and Otter, Martin and Elmqvist, Hilding (1999) Modelica Hybrid Modeling and Efficient Simulation. In: Proceedings fo the 38th IEEE Confrence on Decision and Control, CDC 1999, pp. 3502-3507. 38th IEEE Conference on Decision and Control, 1999-12-07 - 1999-12-10, Phoenix, Arizona (USA). ISBN 0-7803-5253-X.
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Abstract
Modelica is an object-oriented language for modeling of large and heterogeneous physical systems. Typical applications include mechatronic models in automo-tive and aerospace applications involving mechani-cal, electrical and hydraulic subsystems as well as control systems. Modeling of an ideal diode and Coulomb friction is discussed to illustrate the unique hybrid features of Modelica. The language has been designed to allow tools to generate efficient code automatically. Approaches supported by the Dynamic Modeling Laboratory Dymola from Dynasim are presented. Real-time simulation of an automatic gearbox is discussed to demonstrate the power of symbolic manipulation. A gearbox is inherently hybrid, since the structure varies during each gearshift. Friction is also an important phenomenon. It takes Dymola only a few seconds to translate a Modelica model of an automatic gearbox with 11 switching elements into efficient simulation code. A 500 MHz DEC alpha processor from dSPACE evaluates one Euler step including a possible mode switch in less than 0.18 ms
| Document Type: | Conference or Workshop Item (Speech) | ||||||||
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| Additional Information: | LIDO-Berichtsjahr=1999, | ||||||||
| Title: | Modelica Hybrid Modeling and Efficient Simulation | ||||||||
| Authors: |
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| Date: | 1999 | ||||||||
| Journal or Publication Title: | Proceedings fo the 38th IEEE Confrence on Decision and Control, CDC 1999 | ||||||||
| Page Range: | pp. 3502-3507 | ||||||||
| Editors: |
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| ISBN: | 0-7803-5253-X | ||||||||
| Status: | Published | ||||||||
| Keywords: | Modelica, hybrid systems, object-oriented modeling, automatic gearbox | ||||||||
| Event Title: | 38th IEEE Conference on Decision and Control | ||||||||
| Event Location: | Phoenix, Arizona (USA) | ||||||||
| Event Type: | international Conference | ||||||||
| Event Dates: | 1999-12-07 - 1999-12-10 | ||||||||
| Organizer: | CDC'99 | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Space | ||||||||
| HGF - Program Themes: | W SY - Technik für Raumfahrtsysteme | ||||||||
| DLR - Research area: | Space | ||||||||
| DLR - Program: | W SY - Technik für Raumfahrtsysteme | ||||||||
| DLR - Research theme (Project): | W - Weiterentwicklung Robotik - Mechatronik und Dynamik (old) | ||||||||
| Location: | Oberpfaffenhofen | ||||||||
| Institutes and Institutions: | Institute of Robotics and Mechatronics | ||||||||
| Deposited By: | elib DLR-Beauftragter | ||||||||
| Deposited On: | 15 Mar 2006 | ||||||||
| Last Modified: | 14 Jan 2010 17:35 |
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