The invention discloses a high-voltage power supply battery, a power supply method, a 48V light hybrid system and a vehicle. A first DCDC conversion circuit and a second DCDC conversion circuit are integrally arranged in a high-voltage battery cell battery pack for voltage conversion, 12V voltage is output to low-power equipment, 48V voltage is output to high-power equipment, and two paths of power supply do not influence each other and work independently. When the high-voltage power supply battery cannot supply power normally, the battery management system controls the first DCDC conversion circuit of the high-voltage power supply battery to convert the 12V external power supply voltage into the voltage capable of charging the high-voltage battery cell, and the high-voltage battery cell is charged. When the vehicle brakes in the driving process, the 48V starting and power generating all-in-one machine converts 48V voltage into voltage capable of charging a high-voltage battery cell through the second DCDC conversion circuit of the high-voltage power supply battery, and the high-voltage battery cell is charged. An independent 48V battery is prevented from being arranged to supply power to a low-power system, so that the utilization rate of layout space in a cabin is high, and the vehicle cost is reduced.

    本发明公开了一种高压供电电池、供电方法、48V轻混系统及车辆,通过将第一DCDC转换电路、第二DCDC转换电路集成设置于所述高压电池电芯电池包内进行电压转换,输出12V电压至低功率设备、输出48V电压给大功率设备,两路供电互不影响,单独工作。高压供电电池不能正常供电时,电池管理系统控制高压供电电池的第一DCDC转换电路将12V外接电源电压转换成可以为高压电池电芯充电的电压,为高压电池电芯充电。在行车过程中车辆刹车时,48V启动发电一体机通过高压供电电池的第二DCDC转换电路将48V电压转换成可以为高压电池电芯充电的电压,为高压电池电芯充电。避免设置单独的48V电池为低功率系统供电,使得机舱内布局空间利用率大、车辆成本降低。


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    Title :

    High-voltage power supply battery, power supply method, 48V light hybrid system and vehicle


    Additional title:

    一种高压供电电池、供电方法、48V轻混系统及车辆


    Contributors:
    WANG FEI (author) / SO DEUK-SU (author) / ZHAO JINGYI (author) / CHEN PEIYUAN (author) / ZHAO YIZHOU (author) / GUO HAOTIAN (author) / ZHANG YANLEI (author) / QIAN CHAOCHAO (author)

    Publication date :

    2025-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / 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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