The invention discloses a protection control method and device for a motor controller in a low-voltage state, a medium and equipment, and the method for the motor controller comprises the steps: controlling a power electronic switching device of the motor controller to be turned on under the condition that a power battery of a vehicle is in a low-voltage state, so as to enable the motor controller to be in an open state; under the condition that the motor controller is in an open state and the bus voltage at the current moment is smaller than a preset first voltage threshold value, the output power of a motor in the vehicle is controlled to be reduced by a preset value, so that derated output of the motor is achieved; and controlling the engine to operate according to the target motor rotating speed output by motor derating. Therefore, by adopting the embodiment of the invention, the out-of-control of the motor and the generation of back electromotive force can be prevented, so that the direct current-direct current converter is protected from being damaged, and the reliable operation of the vehicle under a low-voltage condition is ensured.

    本申请公开了一种低电压状态下电机控制器的保护控制方法、装置、介质及设备,电机控制器方法包括:在车辆的动力电池处于低压状态的情况下,控制电机控制器的电力电子开关器件开启,以使电机控制器处于开管状态;在电机控制器处于开管状态且当前时刻的母线电压小于预设第一电压阈值的情况下,控制车辆中电机的输出功率降低预设值,以使电机降额输出;根据电机降额输出的目标电机转速,控制发动机运行。因此,采用本申请实施例,能够防止电机失控和反电动势的产生,从而保护直流‑直流转换器免受损害,确保车辆在低电压条件下的可靠运行。


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    Title :

    Protection control method and device for motor controller in low-voltage state, medium and equipment


    Additional title:

    低电压状态下电机控制器的保护控制方法、装置、介质及设备


    Contributors:
    GUO QINGGUANG (author) / LI GUOPENG (author) / WEI QIANWEN (author) / WANG RUIMING (author)

    Publication date :

    2025-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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