Conference article

A Modular Technique for Automotive System Simulation

Felix Günther
Robert Bosch GmbH, Stuttgart, Germany

Georg Mallebrein
Robert Bosch GmbH, Stuttgart, Germany

Heinz Ulbrich
Technische Universität München, Institute of Applied Mechanics, Germany

Download articlehttp://dx.doi.org/10.3384/ecp12076589

Published in: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Linköping Electronic Conference Proceedings 76:60, s. 589-598

Show more +

Published: 2012-11-19

ISBN: 978-91-7519-826-2

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Increasingly restrictive boundary conditions; such as legislation and lack of resources; are leading to a need for more overall system understanding in the automotive sector. Modelica; as a suitable way for multi-physics modeling; is therefore applied by Bosch; e.g. to investigate energy flows amongst domains.

We present a modular approach consisting of two parts to handle complexity and increase the performance: a modular library for the different domains and a co-simulation framework. To begin with; coupling aspects as causality and communication are discussed in this context and their implementation is shown. A further focus is the variable macro step size that we developed within the framework for the automotive drive cycle simulation. The results of the modular approach are described and analyzed regarding error and performance aspects. Finally; challenges of the work are mentioned and an outlook; including FMI [2]; [10]; is given.

Keywords

co-simulation; automotive system simulation; multi-domain

References

[1] Arnold; M. Multi-Rate Time Integration for Large Scale Multibody System Models. IUTAM Symposium on Multiscale Problems in Multibody System Contacts; Stuttgart; Germany; 2006.

[2] Blochwitz; T. et. al. The Functional Mockup Interface for Tool independent Exchange of Simulation Models. Proc. 8th International Modelica Conference. The Modelica Association. Dresden; Germany; 2011.

[3] Busch; M.; Schweizer; B. Numerical Stability and Accuracy of Different Co-Simulation Techniques: Analytical Investigations Based on a 2-DOF Test-Model. The 1st Joint International Conference on Multibody System Dynamics; Lappeenranta; Finland; 2010.

[4] Clauß; C.; Arnold; M.; Schierz; T.; Bastian; J. Master zur Simulatorkopplung via FMI. ASIM-Konferenz STS/GMMS 2012; ISBN 978-3-901608-39-1; Wolfenbüttel; Germany; 2012.

[5] Dassault Systèmes; Dymola 2012; 2011 URL http://www.3ds.com/products/catia/portfolio/dymola

[6] DLR Institute of Robotics and Mechatronics; The Powertrain Library (Version 2.1.0); 2011 URL http://www.dlr.de/rm/en/desktopdefault.aspx/tabid-5312/8907_read-16072/

[7] Dronka; S. Die Simulation gekoppelter Mehrkörper- und Hydraulikmodelle mit Erweiterung für Echtzeitsimulation. Dresden; Germany; PhD thesis; Technische Universität Dresden; 2004

[8] European Commission. NEDC. Consolidated Directive 70/220/EEC; 2006.

[9] Faure; C. et al. Methods for real-time simulation of Cyber-Physical Systems: application to automotive domain. Proc. 1st IEEE Work-shop on Design; Modeling and Evaluation of Cyber Physical Systems; Istanbul; Turkey; 2011.

[10] FMI Specification 2.0 Beta 3; available for free from URL http://www.functional-mockup-interface.org/ (2.0 beta)

[11] Friedrich; M. Parallel Co-Simulation for Mechatronic Systems. München; Germany: PhD thesis; Technische Universität München; Institute of Applied Mechanics; 2011.

[12] Friedrich; M.; Schneider; M.; Ulbrich; H. A Parallel Co-Simulation for Mechatronic Systems. The 1st Joint International Conference on Multibody System Dynamics; Lappeenranta; Finland; 2010.

[13] Johansson; B.; Krus; P. Modelica in a Distributed Environment Using Transmission Line Modelling. Proc. Modelica Workshop 2000; Lund; Sweden; 2000.

[14] Kanth; D. Zur steifigkeits- und kopplungsbasierten Partitionierung mechatronischer Systeme. Stuttgart; Germany; PhD thesis; Univerity of Stuttgart; 2010

[15] Petridis; K.; Klein; A.; Beitelschmidt; M. Asynchronous method for the coupled simulation of mechatronic systems. Proceedings in Applied Mathematics and Mechanics; Bremen; Germany; 2008.

[16] Rumbolz; P.; Baumann; G.; Reuss; H-C. Messung der fahrzeuginternen Leistungsfluesse im Realverkehr. ATZ 05 2011; Germany; 2011

[17] TLK-Thermo GmbH; TISC; 2012; URL http://www.tlk-thermo.com.

[18] UNECE; WLTC v4; 2012; URL http://www.unece.org/.

Citations in Crossref