The invention relates to a motor controller discharging method and device, a vehicle and a storage medium, a motor controller discharging circuit is adopted in the method, and the circuit comprises a microprocessor, a hardware detection circuit, a window comparator circuit, an isolation device and a discharging loop which are connected in sequence. Judging whether the pulse width and the pulse period of the pulse signal sent by the microprocessor are in the corresponding threshold interval or not; and if the pulse width or the pulse period is not in the corresponding threshold interval, judging that the motor controller meets a preset discharge condition, controlling a window comparator circuit to output a low level so as to control an IGBT of a discharge loop to be in a conducting state, and performing high-voltage discharge. Therefore, the problem that an existing motor controller discharging technology is poor in stability and safety is solved, it is ensured that discharging can be conducted normally under the condition that the microprocessor fails, and the stability and safety of the discharging process are improved.

    本申请涉及一种电机控制器放电方法、装置、车辆及存储介质,方法采用电机控制器放电电路,电路包括依次相连的微处理器、硬件检测电路、窗口比较器电路、隔离器件和放电回路,方法包括:基于硬件检测电路中电容两端的电压值,判断微处理器发出的脉冲信号的脉冲宽度和脉冲周期是否均处于对应的阈值区间;若脉冲宽度或脉冲周期未处于对应的阈值区间,则判定电机控制器满足预设的放电条件,控制窗口比较器电路输出低电平,以控制放电回路的IGBT处于导通状态,并进行高压放电。由此,解决了现有的电机控制器放电技术的稳定性和安全性较差的问题,确保在微处理器失效情况下也能正常进行放电,提高了放电过程的稳定性和安全性。


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    Title :

    Motor controller discharging method and device, vehicle and storage medium


    Additional title:

    电机控制器放电方法、装置、车辆及存储介质


    Contributors:
    WANG JIN (author) / OU DONGJIE (author) / XIE SHUANGFEI (author) / LIU RUI (author) / LIU JIABAO (author)

    Publication date :

    2025-01-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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