A vehicle may include a battery having positive and negative electrodes. The vehicle may also include a controller programmed to charge and discharge the battery according to a state of charge that is based on an effective surface lithium-ion concentration of one of the electrodes, and an effective surface lithium-ion concentration of the other of the electrodes derived from a center-to-surface lithium-ion concentration profile of the one of the electrodes. The effective surface lithium-ion concentration of the other of the electrodes may be derived via a relationship mapping the center-to-surface lithium-ion concentration profile of the one of the electrodes to the effective surface lithium-ion concentration of the other of the electrodes.


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    Title :

    Battery state of charge estimation based on reduced order electrochemical models


    Contributors:

    Publication date :

    2017-12-05


    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 / 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