Automotive lead/acid batteries have traditionally been operated without active management or even monitoring. With growing demands for battery reliability and performance, battery management becomes a need. Recently, rapid progress has been made with Battery Management Systems (BMS) for 12 V automotive batteries. They are expected to penetrate the automotive volume market as commodities. Their hardware is characterized by low-cost sensors that form the basis for advanced battery state detection or monitoring. As a possible software interface for commodity BMS, the state-of-function (SOF) concept is discussed. An overview is given about the status of monitoring algorithms for lead/acid batteries in automotive applications. Active battery management functions are described. A case study demonstrates the application of these concepts to a micro-hybrid vehicle. For conceivable applications of lead/acid batteries in Mild- and Medium Hybrid Electric Vehicles (HEVs), commonalities and differences with available 12 V/14 V BMS are discussed. The need for cost-optimized solutions in conjunction with any lead/acid battery is emphasized.


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    Title :

    Lead-acid battery management in future vehicles


    Contributors:


    Publication date :

    2005


    Size :

    12 Seiten, 5 Bilder, 17 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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