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A Multi-Disciplinary Approach for the Electrical and Thermal Characterization of Battery Packs—Case Study for an Electric Race Car

World Electric Vehicle Journal, vol. 14, pp. 102

Abstract

A novel, multi-disciplinary approach is presented where experiments, system simulation and Computational Fluid Dynamics are combined for the electrical and thermal characterization of an air-cooled battery pack. As a case study, a Formula Student race car is considered and the procedure proposed consists of three steps: (1) experimental characterization of the battery cells under several thermal conditions; (2) thermal and electrical modeling of the battery stack with system simulation; (3) three-dimensional, time-dependent Conjugate Heat Transfer simulation of the whole battery pack to investigate the cooling performance of the chosen design, and to access fundamental quantities of the batteries, such as state of charge, temperature and ohmic heating. Future improvements of the current work are discussed, including the extension to a liquid-cooled design, battery aging consideration and model integration into a full vehicle system model.

Authors 5

  1. Siemens (Germany)

    Affiliation as printed

    Siemens Industry Software GmbH, Am Kabellager 9, 51063 Köln, Germany

  2. Siemens (Germany)

    Affiliation as printed

    Siemens Industry Software GmbH, Am Kabellager 9, 51063 Köln, Germany

  3. Affiliation as printed

    Siemens Digital Industries Software, 19 bd Jules Carteret, 69007 Lyon, France

  4. RWTH Aachen University

    Affiliation as printed

    Ecurie Aix-Formula Student Team RWTH Aachen e.V., Templergraben 55, 52062 Aachen, Germany

  5. RWTH Aachen University

    Affiliation as printed

    Ecurie Aix-Formula Student Team RWTH Aachen e.V., Templergraben 55, 52062 Aachen, Germany

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References 25