The invention provides a BMS charging pile power supply adaptive control method, medium and system, and belongs to the technical field of charging piles, the BMS working voltage adaptive charging pile auxiliary power supply control method comprises the following steps: when a charging pile is in a standby state, two input pin RX and RT signals of a comparator are different; after charging is started, the controller sends data to the CAN bus; when the BMS is not successfully powered on, the signal on the RX pin of the CAN transceiver is always the same as the signal on the TX pin of the CAN transceiver; the auxiliary power supply voltage output by the adjustable power supply is gradually increased according to the excitation signal of the trigger, and when the output voltage is equal to the working power supply voltage of the BMS, the BMS is powered on to work; the BMS receives the data transmitted by the controller and responds, and the voltage of the auxiliary power supply begins to drop; in the charging process, the voltage of the auxiliary power supply is maintained at the BMS working voltage; when the charging process is ended, the data flow of the CAN bus disappears, the charging pile returns to the standby state, and whether the controller and the BMS establish communication or not is judged through the TX pin and the RX pin of the CAN transceiver.

    本发明提供了一种BMS充电桩电源自适应控制方法、介质及系统,属于充电桩技术领域,该BMS工作电压自适应的充电桩辅助电源控制方法包括以下步骤:充电桩待机时,比较器的两个输入引脚RX和RT信号不同;充电启动后,控制器向CAN总线发送数据;BMS未成功上电时,CAN收发器RX引脚上的信号与TX引脚上的信号始终相同;可调电源的输出的辅助电源电压根据触发器的激励信号逐渐上升,当输出电压等于BMS的工作电源电压,BMS上电工作;在BMS收到控制器传输的数据,进行应答,辅助电源电压开始下降;充电过程中,辅助电源电压维持在BMS工作电压上;当充电流程终止,CAN总线的数据流消失,充电桩回到待机状态,通过CAN收发器的TX和RX引脚判断控制器与BMS是否建立了通信。


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    Title :

    BMS charging pile power supply adaptive control method, medium and system


    Additional title:

    一种BMS充电桩电源自适应控制方法、介质及系统


    Contributors:
    QI RUIFENG (author) / SHI BINBIN (author) / DU CHENGLIN (author) / WANG LIUYANG (author) / WANG XIYANG (author)

    Publication date :

    2024-02-06


    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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