Static state of charge (SOC) correction for a lithium iron phosphate (LFP) battery system of an electrified vehicle includes in response to a power-off of the electrified vehicle, (i) determining an initial SOC of the LFP battery system, (ii) initiating a power-off timer and (iii) initiating a periodic temperature measurement of the LFP battery system, in response to a subsequent power-on of the electrified vehicle, (i) stopping the power-off timer, (ii) determining an average of the periodic temperature measurements of the LFP battery system, and (iii) accessing a calibrated look-up table to determine a self-discharge rate of the LFP battery system based on a value of the power-off timer and the measured temperature of the LFP battery system, and determining a corrected SOC for the LFP battery system by determining an SOC change based on the determined self-discharge rate and subtracting the SOC change from the initial measured SOC.


    Access

    Download


    Export, share and cite



    Title :

    STATIC STATE OF CHARGE CORRECTION TECHNIQUES FOR LITHIUM IRON PHOSPHATE BATTERY SYSTEMS


    Contributors:
    LU ZHONGJUN (author) / ZHAO JINGJING (author) / YU WENFENG (author) / TANG SHANQI (author) / JIANG YI (author)

    Publication date :

    2025-03-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Lithium iron phosphate battery module

    XIE JINFENG / YANG KUN / LU XIAOPEI | European Patent Office | 2025

    Free access


    Forklift lithium iron phosphate battery charging method

    LIU CHANGLAI / XIA SHIZHONG / YI WENHAO et al. | European Patent Office | 2021

    Free access

    Lithium Iron Phosphate State of Charge Estimation, Cycle Life and Capacity Fading

    Singh Ladhar, Manraj / Williamson, Sheldon | IEEE | 2023


    Balancing method based on lithium iron phosphate battery

    LIU YISHAN / SONG KAITONG / WANG HENG | European Patent Office | 2023

    Free access