For DC brush motors directly driven by 42V vehicle battery, carbon brush deterioration due to high voltage arc is a major factor to determine motor life [1]. The brush deterioration is significant especially in multipolar motors with lap-wound armature because they allow a large circulating current to flow into their brushes and it decreases commutation performance [2], [3], [4]. In this report, we propose 1) a new brush material capable of preventing brush deterioration even under high-voltage conditions and 2) a new winding method to minimize circulating current under electromagnetic polarization and to suppress high-voltage arc. With each of these new technologies, DC brush motor driven by 42V battery can operate longer than that driven by 14V battery.


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    Title :

    Development of Commutation Technology for In-vehicle DC Motor Directly Driven by 42V Vehicle Battery


    Additional title:

    Sae International Journal of Passenger Cars- Electronic and Electrical Systems
    Sae Int. J. Passeng. Cars – Electron. Electr. Syst


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2009



    Publication date :

    2009-04-20


    Size :

    8 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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