Proper electric and thermal management of an HEV battery pack, consisting of many modules of cells, is imperative. During operation, voltage and temperature differences in the modules/cells can lead to electrical imbalances from module to module and decrease pack performance by as much as 25%. An active battery management system (BMS) is a must to monitor, control, and balance the pack. The University of Toledo, with funding from the U.S. Department of Energy and in collaboration with DaimlerChrysler and the National Renewable Energy Laboratory has developed a modular battery management system for HEVs. This modular unit is a 2nd generation system, as compared to a previous 1st generation centralized system.This 2nd generation prototype can balance a battery pack based on cell-to-cell measurements and active equalization. The system was designed to work with several battery types, including lithium ion, NiMH, or lead acid. Surface mount technology is used throughout to reduce volume, mass, and cost. The weight and volume of the 2nd generation are estimated to be 70% and 87%, respectively, less than the 1st generation.


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    Titel :

    A Modular Battery Management System for HEVs


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Pesaran, Ahmad (Autor:in) / Ashtiani, Cyrus (Autor:in) / Fang, Fang (Autor:in) / Stuart, Thomas (Autor:in) / Wang, Xiaopeng (Autor:in)

    Kongress:

    Future Car Congress ; 2002



    Erscheinungsdatum :

    2002-06-03




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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