Battery Development and Testing including Simulation and Function Development at ElringKlinger

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Battery Development and Testing including Simulation and Function Development at ElringKlinger

Weller, Lars / Freundt, Pierre / Pausch, Moritz / Buck, Joachim

At ElringKlinger, we think that battery electric vehicles will play an increasingly important role in the future. Therefore, we develop high-voltage battery modules and packs as well as their components like cell contacting systems. However, we also think that it will be a key issue for future vehicles to know how battery systems behave under different loads over their lifetime. For this reason, the development of robust battery management systems (BMS) algorithms such as state of charge, state of health, and state of performance prediction is becoming more important. In addition to validation tests, the development also includes the construction of simulation models and the performance of service life tests. For the modules, potential customers need to know, for example, how many full cycles they can achieve under different loads. For this reason, we carry out cyclization of the modules at different loads and temperatures over their service life. For the development and parameterization of the BMS state functions, which include the determination of the state of charge, the state of aging, and the performance prediction, it is also important to know how the cell, module, or system behaves over its lifetime. However, for the estimation of an application-related aging behavior, we also perform the cyclization with a WLTP load profile. Therefore, we use single-cell tests to build up simulation models for the cells and the BMS functions.

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Document information

Title :

Battery Development and Testing including Simulation and Function Development at ElringKlinger

Additional title:

Proceedings

Contributors:

Bargende, Michael (editor) / Reuss, Hans-Christian (editor) / Wagner, Andreas (editor) / Weller, Lars (author) / Freundt, Pierre (author) / Pausch, Moritz (author) / Buck, Joachim (author)

Published in:

22. Internationales Stuttgarter Symposium ; Chapter : 38 ; 541-554

Proceedings

Publication date :

2022-03-14

Size :

14 pages

ISBN :

978-3-658-37009-1 , 978-3-658-37008-4

ISSN :

2198-7440 , 2198-7432

DOI :