Title: Efficient run-time co-simulation model switching for holistic analysis of embedded systems

Authors: Michael Karner; Eric Armengaud; Christian Steger; Reinhold Weiss

Addresses: Virtual Vehicle Research and Test Center, Inffeldgasse 21a/1, 8010 Graz, Austria ' AVL List GmbH, 8020 Graz, Austria ' Graz University of Technology, Institute for Technical Informatics, Inffeldgasse 16/1, 8010 Graz, Austria ' Graz University of Technology, Institute for Technical Informatics, Inffeldgasse 16/1, 8010 Graz, Austria

Abstract: Simulation is widely used for the early validation and evaluation of embedded systems. In the case of complex systems consisting of highly heterogeneous components, a tradeoff occurs between the simulation accuracy and time interval under observation. A possible solution for this problem is run-time co-simulation model switching. It enables the test engineer to define the simulation intervals with high accuracy and the intervals of high performance. In this work, we propose a framework for the systematic decision of the component models to be used according to the goals and current status of the simulation. In combination, we further propose a new adaptive approach for run-time co-simulation model switching. The proposed approach is illustrated by the simulation of automotive distributed embedded systems.

Keywords: co-simulation; embedded systems; run-time switching; co-design; failure mode and effects analysis; FMEA; FlexRay communications network; adaptive switching; time-triggered systems; simulation intervals; modelling; automotive communications protocol; automobile industry; distributed systems.

DOI: 10.1504/IJES.2013.057701

International Journal of Embedded Systems, 2013 Vol.5 No.4, pp.208 - 224

Accepted: 12 Dec 2012
Published online: 19 Jul 2014 *

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