The invention discloses a high-voltage system of an electric automobile, a high-voltage control method and the electric automobile, the high-voltage system comprises an integrated loop, and a current collection loop is used for collecting residual electric quantity of a high-voltage load part in a high-voltage load loop under a high-voltage power-off working condition; and in a pre-charging working condition before high-voltage power-on, the stored electric energy is charged into the high-voltage load loop, and the integrated loop is connected to the two ends of the high-voltage load loop. According to the invention, energy during voltage unloading is properly collected and converted into pre-charging energy during power-on of the vehicle. Therefore, voltage unloading can be accelerated, the safety of a vehicle power grid is guaranteed, the national standard compulsory requirement is met, and energy can be recycled. And the electric vehicle is more suitable for the development trend of voltage platform rising.

    本发明公开了一种电动汽车的高压系统、高压控制方法和电动汽车,包括一个集成回路,所述集电回路用于用于在高压下电工况时,收集高压负载回路中的高压负载部件的残余电量;在高压上电前预充工况时,将所存储的电能充进高压负载回路,所述集成回路连接在高压负载回路两端。本发明将卸载电压时能量进行适当收集,转化为车辆上电时预充能量。这样既可加速卸载电压,保障车辆电网安全,符合国标强制要求,也可以对能量回收利用。使电动汽车更加适合电压平台上升的发展趋势。


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    Title :

    High-voltage system of electric automobile, high-voltage control method and electric automobile


    Additional title:

    一种电动汽车的高压系统、高压控制方法和电动汽车


    Contributors:
    WANG JIANBO (author) / JIANG SIHUA (author) / LI YOU (author) / FAN YONG (author) / KOU RUIHUAN (author)

    Publication date :

    2023-07-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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