A Real-Time evaluation system for a state-of-charge indication algorithm

V. Pop, H.J. Bergveld, P.H.L. Notten, Paulus P.L. Regtien

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    54 Downloads (Pure)

    Abstract

    The known methods of State-of-Charge (SoC) indication in portable applications are not accurate enough under all practical conditions. This paper describes a real- time evaluation LabVIEW system for an SoC algorithm, that calculates the SoC in [%] and also the remaining run-time available under the valid discharge conditions. With the described system the accuracy of the SoC algorithm and its validity can be determined. The final goal of the SoC algorithm is to predict the remaining capacity of the battery and the remaining run-time with an accuracy of 1 minute or better under all realistic user conditions, including a wide variety of load currents and a wide temperature range. The basis of the SoC algorithm is current measurement and integration during charge and discharge state and voltage measurement during equilibrium state. Experimental results show the testing ability of the real-time evaluation system and the effectiveness of the novel approach for improving the accuracy of the SoC indication.
    Original languageUndefined
    Title of host publicationJoint International Imeko TC1 + TC7 Symposium: Metrology and Measurement Education in the Internet Era
    Place of PublicationIlmenau, Germany
    PublisherTechnische Universität Ilmenau
    Pages104-107
    Number of pages4
    ISBN (Print)3-932633-99-7
    Publication statusPublished - 21 Sep 2005
    EventJoint International IMEKO TC1 + TC7 Symposium 2005: Metrology and Measurement Education in the Internet Era - Ilmenau, Germany
    Duration: 21 Sep 200524 Sep 2005

    Publication series

    Name
    PublisherTechnische Universität Ilmenau

    Conference

    ConferenceJoint International IMEKO TC1 + TC7 Symposium 2005: Metrology and Measurement Education in the Internet Era
    Period21/09/0524/09/05
    Other21-24 Sept 2005

    Keywords

    • METIS-229139
    • IR-74548
    • EWI-18700
    • portable energy
    • State-of-Charge
    • Li-ion batteries

    Cite this