A method for detecting a faulty cell in an electric battery pack includes the following steps: measuring the no-load voltage at the terminals of each cell of the battery pack; calculating the deviation between the no-load voltage measured at the terminals of the cell and an average known no-load voltage as a function of the number of days during which the battery pack was not used; calculating the difference between the calculated deviation and a quantity n·σ, n being an integer no lower than 1, and σ being a known standard deviation which is a function of the number of days during which the battery pack was not used; and detecting a faulty cell if the difference is greater than zero.


    Access

    Download


    Export, share and cite



    Title :

    METHOD FOR DETECTING A FAULTY CELL IN AN ELECTRIC BATTERY


    Contributors:

    Publication date :

    2020-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Method for detecting a faulty cell in an electric battery

    DELOBEL BRUNO / ARSAC BENOIT / ORIGUCHI MASATO | European Patent Office | 2024

    Free access

    METHOD AND APPARATUS FOR DETECTING FAULTY CONTACTS IN BATTERY PACKS

    VAN LAMMEREN JOOP | European Patent Office | 2019

    Free access

    Method for detecting a faulty connection of an auxiliary battery

    LACHAIZE JEROME | European Patent Office | 2019

    Free access

    METHODS AND SYSTEMS FOR DETECTING FAULTY BEHAVIOR IN A BATTERY

    AGARWAL SAMARTH / HAN SEONGHO / HARIHARAN KRISHNAN et al. | European Patent Office | 2022

    Free access

    Apparatus and method for detecting faulty charge pump capacitor

    BÜTHKER HENRICUS CORNELIS JOHANNES | European Patent Office | 2020

    Free access