Open Access

ARTICLE

Towards Realistic Vibration Testing of Large Floor Batteries for Battery Electric Vehicles (BEV)

by Benedikt Plaumann^*

Faculty of Engineering and Computer Science, Department Automotive and Aeronautical Engineering, Hamburg University of Applied Sciences (HAW Hamburg), Hamburg, 20099, Germany

Sound & Vibration 2022, 56(1), 1-19. https://doi.org/10.32604/sv.2022.018634

Received 07 August 2021; Accepted 09 November 2021; Issue published 10 January 2022

Abstract

This contribution shows an analysis of vibration measurement on large floor-mounted traction batteries of Battery Electric Vehicles (BEV). The focus lies on the requirements for a realistic replication of the mechanical environments in a testing laboratory. Especially the analysis on global bending transfer functions and local corner bending coherence indicate that neither a fully stiff fixation of the battery nor a completely independent movement on the four corners yields a realistic and conservative test scenario. The contribution will further show what implication these findings have on future vibration & shock testing equipment for large traction batteries. Additionally, it will cover an outlook on how vibration behavior of highly integrated approaches (cell2car) changes the mechanical loads on the cells.

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Keywords

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