The invention discloses a control method and device for driving an active short circuit for an electric vehicle. The control method comprises the following steps that a PDU controller synchronously outputs an active short circuit safety state enable signal and a PDU relay turn-off signal; enabling the motor control system to exit the boost charging mode through a PDU relay turn-off signal; and after the motor control system quits the boost charging mode, the motor control system enters an active short-circuit safety state through the active short-circuit safety state enable signal. According to the invention, the risk that the motor controller enters an active short-circuit safety state by mistake due to a fault in a boost charging mode to cause damage to the driving module is solved.

    本发明公开了一种电动汽车用驱动主动短路的控制方法和装置,其中所述控制方法包括以下步骤:PDU控制器同步输出主动短路安全状态使能信号和PDU继电器关断信号;通过PDU继电器关断信号使电机控制系统退出升压充电模式;电机控制系统退出升压充电模式后,通过主动短路安全状态使能信号使电机控制系统进入主动短路安全状态。本发明解决了升压充电模式下电机控制器由于故障误进入主动短路安全状态,造成驱动模块损坏的风险。


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    Title :

    Control method and device for driving active short circuit for electric automobile


    Additional title:

    一种电动汽车用驱动主动短路的控制方法和装置


    Contributors:
    LIU LEI (author) / YU HAIYAN (author) / JIAO MINSHENG (author) / CHEN FENG (author)

    Publication date :

    2022-09-27


    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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