The invention relates to the field of vehicle batteries, and discloses a vehicle battery self-heating system and method. The system comprises a vehicle battery, a first switching device group, a second switching device group, a controller, a motor, a resonant capacitor and a switch, the first switching device group comprises a first power switch and a second power switch, a first source-drain electrode of the first power switch is connected with a first end of the battery, and a second source-drain electrode of the first power switch is connected with a third source-drain electrode of the second power switch; a fourth source-drain electrode of the second power switch is connected with the second end of the battery; the second switching device group comprises a third power switch and a fourth power switch; a fifth source-drain electrode of the third power switch is connected with the first end, a sixth source-drain electrode of the third power switch is connected with a seventh source-drain electrode of the fourth power switch, and an eighth source-drain electrode of the fourth power switch is connected with the second end; the grid electrode of each power switch is connected with the controller. The first side and the second side of the motor are respectively connected with the first switching device group and the second switching device group. Compared with the prior art, the method has the advantages of high battery self-heating efficiency, low cost and the like.

    本发明涉及车辆电池领域,公开了车辆电池自加热系统及方法。其中,该系统包括车辆电池、第一开关器件组、第二开关器件组、控制器、电机、谐振电容及开关,第一开关器件组包括第一、第二功率开关,第一功率开关的第一源漏极连接电池第一端、第二源漏极连接第二功率开关的第三源漏极,第二功率开关的第四源漏极连接电池第二端,第二开关器件组包括第三、第四功率开关;第三功率开关的第五源漏极连接第一端、第六源漏极连接第四功率开关的第七源漏极,第四功率开关的第八源漏极连接第二端;各个功率开关的栅极分别与控制器连接,电机的第一侧和第二侧分别连接第一、第二开关器件组。与相关技术相比,本发明具有电池自加热效率高、成本低等优点。


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    Title :

    Vehicle battery self-heating system and method


    Additional title:

    车辆电池自加热系统及方法


    Contributors:
    JIANG YE (author) / DUAN CHONGWEI (author) / GAO SHANG (author)

    Publication date :

    2023-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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



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