The invention discloses a boost charging control device and system, a control method thereof and an electric vehicle, and the device comprises a motor boost/buck circuit which is used for carrying out the boost or buck processing of the output voltage of a high-voltage power battery of a vehicle, so as to achieve the voltage interaction of a vehicle pile; the DCDC step-down/step-up circuit is used for carrying out step-up processing on low voltage of a low-voltage storage battery of the vehicle so as to realize vehicle pile voltage interaction and vehicle high-voltage part pre-charging; and the direct charging circuit is used for connecting the DCDC step-down/step-up circuit and a charging pile. Therefore, according to the embodiment of the invention, the DCDC reverse boost voltage is used for interaction with the charging pile, the DC boost system and the DCDC reverse boost system are fully combined, and when the battery voltage is higher than the charging pile and no boost device exists, the low-voltage storage battery is changed into the high-voltage storage battery to be used for realizing vehicle pile voltage interaction handshake, and the charging pile is used for supplying power to the vehicle-mounted high-voltage equipment.

    本发明公开了一种升压充电控制装置、系统及其控制方法、电动车辆,所述装置包括电机升压/降压电路,用于将车辆的高压动力电池的输出电压通过升压或降压处理,以实现车桩电压交互;DCDC降压/升压电路,用于将所述车辆的低压蓄电池的低电压通过升压处理,以实现所述车桩电压交互及车辆高压件预充;直充电路,用于连接所述DCDC降压/升压电路和充电桩。因此,本发明实施例将DCDC反向升压电压用于和充电桩的交互,充分结合直流升压系统和DCDC反向升压系统,在电池电压高于充电桩且无升压装置时,将低压蓄电池变为高压用于实现车桩电压交互握手,利用充电桩给车载高压设备供电。


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    Title :

    Boost charging control device and system, control method of boost charging control device and system and electric vehicle


    Additional title:

    一种升压充电控制装置、系统及其控制方法、电动车辆


    Contributors:
    LI JIANG (author)

    Publication date :

    2024-02-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



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