The invention belongs to the field of new energy automobiles, and provides a method, a controller and a system for active discharging of a new energy automobile. The new energy automobile active discharging method comprises the steps that bus voltage, a driving motor controller working mode, a high-voltage relay working state, a high-voltage relay control instruction, a whole automobile controller hard wire enabling state, a charging state, a motor rotating speed, an electric driving system fault condition and last continuous discharging time in a power-on period are obtained; judging whether all set conditions are met at the same time or not, and if yes, entering an active discharge working condition; discharge conditions under different working conditions are fully considered, the working condition that the high-voltage relay is closed with current is avoided, and relay adhesion is avoided.

    本发明属于新能源汽车领域,提供了一种新能源汽车主动放电的方法、控制器及系统。其中,新能源汽车主动放电的方法包括获取母线电压、驱动电机控制器工作模式、高压继电器工作状态、高压继电器控制指令、整车控制器硬线使能状态、充电状态、电机转速、电驱动系统故障情况和在一个上电周期内的上一次连续放电时间;判断是否同时满足所有设定条件,若是,则进入主动放电工况;本发明充分考虑不同工况下的放电条件,避免了带电流闭合高压继电器工况的发生,避免继电器粘连。


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    Title :

    Active discharging method, controller and system for new energy automobile


    Additional title:

    一种新能源汽车主动放电的方法、控制器及系统


    Contributors:
    WANG YING (author) / WANG JINGYUN (author) / ZHU YUYANG (author) / WAN YUBO (author)

    Publication date :

    2023-10-13


    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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