Early detection and isolation of faults in battery packs are critical to improving performance and ensuring safety. Sensor-related faults such as noisy measurements, sensor bias, sensor drift, and loose connection are typically not safety issues but they could mislead the battery management system (BMS) to take erroneous control actions. Thus, we propose an effective fault tolerance approach to correct faulty voltage and temperature measurements associated with otherwise normal cells by using the measurements from other cells within a group of cells with similar thermal conditions and the same current (e.g., cells in series within a module). This article reconstructs one or more faulty voltage and temperature measurements using other measurements from a series string. Principal component analysis (PCA) applied to median-based voltage and temperature residuals captures cell-to-cell relationships in a series string. This learned cell-to-cell relationship is leveraged to reconstruct the faulty voltage and temperature signals using the remaining nominal voltage and temperature measurements, respectively. Faulty sensor signal reconstruction is validated using data from a battery electric locomotive. The voltage and temperature reconstructions are accurate within 0.51 mV and $0.028~^{\circ }$ C, respectively.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Faulty Sensor Signal Reconstruction in Li-Ion Battery Packs


    Beteiligte:
    Bhaskar, Kiran (Autor:in) / Kumar, Ajith (Autor:in) / Bunce, James (Autor:in) / Pressman, Jacob (Autor:in) / Burkell, Neil (Autor:in) / Miller, Nathan (Autor:in) / Rahn, Christopher D. (Autor:in)


    Erscheinungsdatum :

    01.02.2025


    Format / Umfang :

    1686960 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    METHOD AND APPARATUS FOR DETECTING FAULTY CONTACTS IN BATTERY PACKS

    VAN LAMMEREN JOOP | Europäisches Patentamt | 2019

    Freier Zugriff

    ARCHITECTURE FOR BATTERY PACKS

    MALLERY MICHAEL / HAMMOND JOSHUA J / KLEIN RYAN J et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Contactor for battery packs

    KLINTBERG ANTON / ALTAF FAISAL / SMIDEBRANT TOBIAS | Europäisches Patentamt | 2024

    Freier Zugriff

    CONTROLLER FOR BATTERY PACKS

    WANG BIN / NIU YINUO | Europäisches Patentamt | 2021

    Freier Zugriff

    Articles - EVPLUS Battery Packs

    Paryani | Online Contents | 2000