The invention discloses a control method and device for a high-voltage distribution box of an electric vehicle and the electric vehicle. The method comprises the following steps of generating an upperbus voltage by using a pre-charging loop; and comparing the voltage of the upper bus with the voltage of the power battery, and controlling upper high-voltage power distribution according to a comparison result. According to the method, technical problems in the prior art that in order to ensure the safety of top-mounted high-voltage power utilization, a contactor is usually added to a high-voltage power distribution loop to control top-mounted high-voltage power distribution, however, the contactor charges a capacitive load of a top-mounted motor at the moment of closing, and the current islikely to be too large, so the contactor is likely to be ablated are solved.

    本发明公开了一种电动车辆的高压配电盒的控制方法、装置及电动车辆。该方法包括:利用预充回路产生上装母线电压;将上装母线电压与动力电池电压进行比对,并根据比对结果控制上装高压配电。本发明解决了相关技术中为了确保上装高压用电安全,通常在高压配电回路上增加接触器来控制上装高压配电,然而,接触器在闭合瞬时为上装电机的容性负载充电,很有可能会导致电流过大,由此可能造成接触器烧蚀的技术问题。


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    Title :

    Control method and device for high-voltage distribution box of electric vehicle and electric vehicle


    Additional title:

    电动车辆的高压配电盒的控制方法、装置及电动车辆


    Contributors:
    YANG CHAO (author)

    Publication date :

    2021-03-30


    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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