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Timing Evaluation in E/E Architecture Design at BMW
ISSN: 1946-4614, e-ISSN: 1946-4622
Published April 01, 2014 by SAE International in United States
Citation: Gunnarsson, D., Traub, M., and Pigorsch, C., "Timing Evaluation in E/E Architecture Design at BMW," SAE Int. J. Passeng. Cars – Electron. Electr. Syst. 7(1):178-188, 2014, https://doi.org/10.4271/2014-01-0317.
Timing evaluation methods help to design a robust and extendible E/E architecture (electric/electronic). BMW has introduced the systematic application of such methods in the E/E design process within the last three years. Meanwhile, most of the architectural changes are now verified by a tool-based, automatic real-time analysis. This has increased the accuracy of the network planning and productivity of the BMW network department. In this paper, we give an overview of the actual status of timing evaluations in BMW's E/E architecture design. We discuss acceptance criteria, analysis metrics, and design rules, as far as these are related to timing. We look specifically at automation options, as these improve the productivity further. We will see that timing analysis has matured and should be mandatory for application in mass production E/E architecture development. At the same time, there is room for future improvements.