Charging method and charging apparatus for traction battery are provided. The charging apparatus includes N energy storage units connected in parallel. Each energy storage unit includes an energy storage battery and a first DC/DC converter connected to the energy storage battery. Each charging period of the charging apparatus includes a stage in which a traction battery is charged and a stage in which the traction battery discharges to the N energy storage units. The charging method includes: obtaining a first parameter of each energy storage unit in the discharge stage; determining, based on the first parameter, a first current output by the first DC/DC converter in each energy storage unit, where the first current is inversely proportional to the first parameter of the energy storage battery; and sending the first current to the first DC/DC converter. The energy storage battery receives, via the first DC/DC converter, electrical energy released by the traction battery.


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    Title :

    CHARGING METHOD, CHARGING APPARATUS, AND CHARGING SYSTEM FOR TRACTION BATTERY


    Contributors:
    CAI JINBO (author) / LOU QIDONG (author) / ZHANG WEI (author)

    Publication date :

    2023-08-17


    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



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