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Multiaxial vibration testing of inertia force related components of ev

: Debes, Christian; Zinke, Rüdiger; Dautfest, Alexander; Karthikeyan, Ashwin; Melz, Tobias

Vormwald, M. ; TU Darmstadt, Institut für Stahlbau und Werkstoffmechanik:
5th Symposium on Structural Durability in Darmstadt 2017. Proceedings : May 17-18, 2017, Darmstadt, Maritim Konferenzhotel
Darmstadt: Technische Universität Darmstadt, Institut für Stahlbau und Werkstoffmechanik, 2017
ISBN: 3-939195-55-3
ISBN: 978-3-939195-55-9
Symposium on Structural Durability in Darmstadt (SoSDiD) <5, 2017, Darmstadt>
Fraunhofer LBF ()
electromobility; high-voltage accumulator; multiphysical battery testing; experimental simulation; realistic driving cycle; system reliability

In currently available Battery Electric Vehicles (BEVs) the rechargeable energy storage system (RESS) contributes highly to the overall mass and cost of the vehicle. Hence, its validation is a critical part of the overall product development process. In this context the RESS has to undergo severe multiphysical testing for guaranteeing a high level of system reliability. This paper shows how to compose realistic driving loads for BEVs, to point out their difference to the loading of conventional vehicles and to perform precise experimental simulation of real-world driving scenarios in a multiphysical battery testing lab environment at Fraunhofer LBF. Here, the methods for system performance and reliability validation of RESS focus on the experimental simulation of mechanical vibration loads by presenting the complete process having system identification, drive-file iteration, test-time shortening and the final assessment and evaluation of the results. Thereby, new testing procedures lead to significant cost and time reduction of RESS system validation and help battery and vehicle developers to propel the overall development process.