The invention relates to a method for quickly charging a low-voltage battery platform of a pure electric vehicle, which comprises an alternating-current input EMI (Electro-Magnetic Interference) filter circuit, a bridgeless PFC (Power Factor Correction) circuit, a direct-current charging interface circuit, a pre-stage filter circuit, a DC/DC (Direct Current/Direct Current) conversion circuit, a post-stage rectification filter circuit and a main control chip control and communication circuit, and is used for carrying out alternating-current charging or direct-current charging. By upgrading the function of the vehicle-mounted charger on the miniature electric vehicle, the output power of the miniature electric vehicle is increased, and the problem that the miniature electric vehicle uses a direct-current charging pile for rapid charging is solved. And the direct-current charging circuit interface receives the direct current with the fixed voltage value output by the direct-current charging pile and internally converts the direct current into low-voltage power to charge the low-voltage power battery pack.

    本发明涉及一种纯电动车低压电池平台快充方法,包括交流输入EMI滤波电路,无桥PFC功率因数校正电路,直流充电接口电路,前级滤波电路,DC/DC变换电路,后级整流滤波电路,主控芯片控制及通信电路,进行交流充电或直流充电。通过升级微型电动车上车载充电机的功能,增大其输出功率,解决微型电动车使用直流充电桩进行快速补电的问题。直流充电线路接口,接收直流充电桩输出的固定电压值的直流电,内部转化成低压电给低电压动力电池组充电。


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    Title :

    Pure electric vehicle low-voltage battery platform fast charging method


    Additional title:

    一种纯电动车低压电池平台快充方法


    Contributors:
    GENG DAWEI (author) / MENG JIAFAN (author) / LI GUANGFU (author) / JIA JIAPENG (author) / CHEN SUMEI (author) / HU ZHIDONG (author) / SHEN LONGFEI (author) / WEI CHUANMENG (author) / LI YANJIANG (author)

    Publication date :

    2022-03-25


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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