A state of charge estimation device for estimating a state of charge of iron phosphate lithium ion batteries includes a voltage measurement component configured to measure a voltage across the iron phosphate lithium ion batteries, a current measurement component configured to measure a current flowing through the iron phosphate lithium ion batteries, and a controller component configured to, when an estimation of the state of charge of the iron phosphate lithium ion batteries based on an accumulated amount of currents measured by the current measurement component is defined as a current accumulation method and an estimation of the state of charge of the iron phosphate lithium ion batteries based on an open circuit voltage (OCV) of the iron phosphate lithium ion batteries measured by the voltage measurement component is defined as an OCV method, permit the estimation of the state of charge by the OCV method.


    Access

    Download


    Export, share and cite



    Title :

    State of charge estimation device and method of estimating state of charge


    Contributors:

    Publication date :

    2017-09-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 / 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



    State of charge estimation device and method of estimating state of charge

    HAYASHI EIJI / NAKAMURA MASASHI | European Patent Office | 2016

    Free access

    State of charge estimation device and method of estimating state of charge

    HAYASHI EIJI / NAKAMURA MASASHI | European Patent Office | 2024

    Free access

    State-of-charge estimation device and state-of-charge estimation method

    NISHIGAKI KENJI / KIDONO MASASHI / TSUZUKU TAKAHIRO et al. | European Patent Office | 2019

    Free access

    CHARGE STATE ESTIMATION DEVICE

    ADACHI YUICHI | European Patent Office | 2017

    Free access

    STATE OF CHARGE ESTIMATION DEVICE

    AKAISHI TAKAYUKI | European Patent Office | 2020

    Free access