Electric and hybrid electric vehicles reaching the market today utilize battery packs for on-board energy storage. Due to manufacturing, operational and environmental variations, the behavior of individual battery modules in a high voltage series-string will diverge significantly after a number of cycles. It has been proposed that the use of a battery charge management system to maintain charge balance across the modules will limit this divergence and extend the pack life.To evaluate the benefits of battery charge management, a project was undertaken to acquire candidate charge management systems, test these systems on a high voltage series-string of battery modules, and compare the resulting cycle life of charge managed packs to a non-managed (control) pack. This paper summarizes the project results, including a description of the charge management systems tested, the test methodology used, and the results achieved.


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    Titel :

    Charge Management Systems for Electric and Hybrid Electric Vehicle Battery Packs – Lab Testing to Evaluate Cycle Life Improvement


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Future Transportation Technology Conference & Exposition ; 1999



    Erscheinungsdatum :

    1999-08-17




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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