The present invention relates to a method and a system for determining a maximum charge current (i max ) or a maximum discharge current (i,in) of an energy storage cell (103) of an energy storage device (102). The method comprises providing a predetermined upper voltage limit (V max ) or lower voltage limit (V min ), and providing a time horizon (t) as a time difference from a present time (t) to a future time (t+t). With a repetition time period (T) different from the time horizon, repeating measuring a present voltage level (V) of the energy storage cell; calculating a voltage difference (V) between the present voltage level and the upper voltage limit (V max ) or the lower voltage limit (V min ); and determining the maximum charge current (i max ) or maximum discharge current (i min ) corresponding to the voltage difference and a model, such that the estimated voltage is within the voltage limits.


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    Titel :

    Power and current estimation for batteries


    Weitere Titelangaben:

    Leistungs- und Stromschätzung für Batterien
    Estimation d'énergie et de courant pour batteries


    Beteiligte:
    KUUSISTO HANNES (Autor:in) / FRIDHOLM BJÖRN (Autor:in) / WIK TORSTEN (Autor:in)

    Erscheinungsdatum :

    2021-04-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



    Power and current estimation for batteries

    KUUSISTO HANNES / FRIDHOLM BJORN / WIK TORSTEN | Europäisches Patentamt | 2019

    Freier Zugriff

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    Dai, Haifeng / Sun, Zechang / Wei, Xuezhe | IEEE | 2006



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    Shun, Xiang / Ying, Zheng / Munan, Hong et al. | Springer Verlag | 2020


    Model-Based Peak Power Estimation of Lithium-Ion Batteries for Electric Vehicles

    Shun, Xiang / Ying, Zheng / Munan, Hong et al. | TIBKAT | 2021