This application provides a voltage regulation circuit and system for traction battery and a control method thereof. The voltage regulation circuit for traction battery includes a traction battery, a heating module, a charge/discharge interface, and a voltage regulation module. The heating module includes a power storage element and a switch module. The traction battery is connected in parallel to the switch module. An external charging and discharging device is connected in parallel to the traction battery through the charge/discharge interface. The voltage regulation module includes a plurality of switches and a power storage regulation element, and the plurality of switches and the power storage regulation element are disposed between the charge/discharge interface and the traction battery. The voltage regulation module and the switch module are configured to regulate, in response to a voltage regulation control signal, a charge/discharge voltage between the traction battery and the power storage element and a charge voltage of the external charging and discharging device for the traction battery. This implements flexible and efficient regulation of the charge/discharge voltage between the traction battery and the power storage element and the charge voltage of the external charging and discharging device for the traction battery.


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    Title :

    POWER BATTERY VOLTAGE REGULATION CIRCUIT AND SYSTEM, AND CONTROL METHOD THEREOF


    Additional title:

    LEISTUNGSBATTERIESPANNUNGSREGELUNGSSCHALTUNG UND -SYSTEM SOWIE STEUERUNGSVERFAHREN DAFÜR
    CIRCUIT ET SYSTÈME DE RÉGULATION DE TENSION DE BATTERIE D'ALIMENTATION ET PROCÉDÉ DE COMMANDE ASSOCIÉ


    Contributors:
    ZHAO YUANMIAO (author) / DAN ZHIMIN (author) / YAN YU (author) / LI ZHANLIANG (author) / HUANG XIAOJIAN (author) / CHEN XINWEI (author)

    Publication date :

    2025-05-07


    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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