The invention discloses a charging system compatible with high and low voltage direct current charging piles and a control method and device thereof. The charging system comprises a first switch module, a second switch module and a boost driving module. When the output voltage of the direct current charging pile is greater than the battery voltage of the power battery, the first switch module and the second switch module are closed, a boost charging loop in the boost driving module is disconnected, and the direct current charging pile directly charges the power battery; when the output voltage of the direct current charging pile is not larger than the battery voltage of the power battery, the first switch module is switched off, the second switch module is switched on, a boost charging loop in the boost driving module is switched on, and the direct current charging pile charges the power battery after being boosted through the boost driving module. The technical scheme of the invention can be compatible with direct current charging piles with output voltages of different voltage levels, and can realize full charging of the power battery.

    本发明公开了一种兼容高低压直流充电桩的充电系统及其控制方法、装置,所述充电系统包括第一开关模块、第二开关模块和升压驱动模块;当直流充电桩的输出电压大于动力电池的电池电压时,第一开关模块和第二开关模块闭合,升压驱动模块内部的升压充电回路断开,直流充电桩直接给动力电池充电;当直流充电桩的输出电压不大于动力电池的电池电压时,第一开关模块断开,第二开关模块闭合,升压驱动模块内部的升压充电回路导通,直流充电桩通过升压驱动模块进行升压后给动力电池充电。采用本发明的技术方案能够兼容具有不同电压等级的输出电压的直流充电桩,并且能够实现动力电池满充。


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    Title :

    Charging system compatible with high and low voltage direct current charging piles and control method and device thereof


    Additional title:

    兼容高低压直流充电桩的充电系统及其控制方法、装置


    Contributors:
    XU QI (author) / JIA XU (author)

    Publication date :

    2023-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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