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Fine-grained Simulation in the Design of Automotive Communication Systems

Aurélien Monot 1 Nicolas Navet 1 Bernard Bavoux 2 Cristian Maxim 1
1 TRIO - Real time and interoperability
Inria Nancy - Grand Est, LORIA - NSS - Department of Networks, Systems and Services
Abstract : Early in the design cycle, the two main approaches for verifying timing constraints and di- mensioning automotive embedded networks are worst-case schedulability analysis and simulation. The first aim of the paper is to demonstrate that both provide complementary results and that, most often, none of them alone is sufficient. In this paper, we present a simulation approach accounting for the clock drifts that occur on the network nodes at run- time and evaluate the extent to which the results ob- tained with this approach are relevant for the design- ers in order to validate the performances of a CAN- based communication system. One of the practical outcome of this study is to show that initial phasings between nodes, as well as the values of the clock drifts, do not significantly impact the frame response time distributions that can be observed on the long run.
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https://hal.inria.fr/hal-00767046
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Submitted on : Wednesday, December 19, 2012 - 1:55:20 PM
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  • HAL Id : hal-00767046, version 1

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Aurélien Monot, Nicolas Navet, Bernard Bavoux, Cristian Maxim. Fine-grained Simulation in the Design of Automotive Communication Systems. ERTS 2012 - European Congress on Embedded Real Time Software and Systems, Feb 2012, Toulouse, France. ⟨hal-00767046⟩

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