This article proposes a new coulometric approach to calculate the state of charge of a lead-acid battery in electric vehicles. The main existing state of charge algorithms have two major defects: a state of charge definition not adapted to electric vehicle applications and the nonoptimal use of static performance of the accumulator to estimate its state under dynamic stresses. In order to improve these two weaknesses, we propose a new coulometric algorithm linked to the performance of the electric vehicle and where the ampere-hours virtually discharged are obtained by applying statistical equivalence coefficients to the real current profile. The evaluation of this new algorithm on real discharges reveals a significant improvement with less than 5% errors in all cases studied.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Energy gauge for lead-acid batteries in electric vehicles


    Contributors:
    Caumont, O. (author) / Le Moigne, P. (author) / Rombaut, C. (author) / Muneret, X. (author) / Lenain, P. (author)

    Published in:

    Publication date :

    2000


    Size :

    7 Seiten, 16 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Advanced lead/acid batteries for electric vehicles

    May, G. / Muneret, X. | Tema Archive | 1995


    A defense of electric vehicles and lead acid batteries

    Garlow,C. / Electric Vehicle Association,US | Automotive engineering | 1996


    Sealed Bipolar Lead-Acid Batteries for Small Electric Vehicles

    Harbaugh, D. L. / Arias, J. L. / Drake, E. D. et al. | British Library Conference Proceedings | 1996


    A Defense of Electric Vehicles and Lead Acid Batteries

    Garlow, C. | British Library Conference Proceedings | 1996


    Thermal management of lead-acid batteries for electric vehicles

    McKinney,B.L.,Wierschem,G.L. / Mrotek,E.N. / Johnson Controls,Globe Battery,US | Automotive engineering | 1983