The Next Generation of BMW’s Electrified Powertrains: Providing Software Features Quickly by Model-Based System Design

Authors

Dr. Stefan Kriebel, Vincent Moyses, Dr. Georg Strobl,
BMW Group, Munich;
Dr. Johannes Richenhagen, Dr. Philipp Orth, Prof. Dr. Stefan Pischinger,
FEV Europe GmbH, Aachen;
Christoph Schulze, Timo Greifenberg, Prof. Dr. Bernhard Rumpe,
RWTH Aachen University, Software Engineering, Aachen

Summary

Modern vehicles are complex systems dominated by continuously evolving software functions and highly cross-linked architectures. With shorter development cycles and increasing cost pressure, new approaches are required to provide safe and affordable mobility solutions. This paper tackles this by merging known computer science techniques with state of the art methods of mechanic and electric engineering: systems engineering is consistently done in four layers while retaining agile efficiency at the same time. Model-based requirements replace written text.
Besides cost reduction through maintainable and reusable documentation, this approach enables semi-automated test case derivation cutting down testing effort.
For the development of BMW's next generation electrified drivetrain efficiency and quality objectives can be achieved. Thus, cost, quality and adaptability targets can be met at the same time.

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