A hybrid electric vehicle having one or more controllers, voltage-current sensors, and batteries, which are configured to generate and respond to power signals that communicate vehicle operating and start-up conditions, among other parameters and data. The components also are enabled to detect vehicle and battery conditions that include an open circuit voltage (OCV), current, differentiated current (DFC), and near zero current (NZC). The controller(s) are further configured to generate a predicted battery state of charge (SoC) from a combination of the OCV, current, DFC, NZC, and other parameters, which are calibrated according to respective magnitudes and noise calibration factors, which enables the controller(s) to charge and discharge the battery according to the predicted SoC. The controller(s) also may compare the OCV to a predetermined battery performance array that correlates the OCV magnitude with one or more of a battery SoC, cell voltage and internal resistance, temperature, and cumulative charge-discharge cycles.


    Access

    Download


    Export, share and cite



    Title :

    Battery charge management system


    Contributors:
    WANG XU (author)

    Publication date :

    2019-09-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



    battery charge balancing management system

    JUN BYUNG DOO | European Patent Office | 2023

    Free access

    STORAGE BATTERY CHARGE/DISCHARGE MANAGEMENT APPARATUS AND STORAGE BATTERY CHARGE/DISCHARGE MANAGEMENT SYSTEM

    HAGIWARA MASASHI / NAGASAKI YUSAKU / YOSHIMOTO TAKEO | European Patent Office | 2016

    Free access

    BATTERY MANAGEMENT DEVICE BATTERY MANAGEMENT METHOD AND BATTERY CHARGE AND DISCHARGE SYSTEM

    KANG JU YOUNG / PARK HEUNG IL / LEE DA JIN et al. | European Patent Office | 2025

    Free access

    Charge management system using battery level

    European Patent Office | 2020

    Free access