The embodiment of the invention provides a power motor assembly, a power motor control method, a power motor control device and power motor control equipment. By acquiring basic torque information and current rotating speed information of a power motor and acquiring current current parameters of a bus, negative torque compensation information for the power motor can be determined based on the current current parameters when the current current parameters represent that a power battery is in a discharging state; and determining first current torque information based on the basic torque information and the negative torque compensation information. And then, a target torque control parameter used for controlling the power motor is matched from a preset torque control library by using the first current torque information and the current rotating speed information, so that the torque actually output by the power motor is zero by using the target torque control parameter, and the bus current is also zero at the moment. According to the embodiment of the invention, a high-voltage loop of the power motor does not need to be cut off, online adjustment of the torque of the power motor can be realized, and the zero-torque control process of the power motor is safe and reliable.

    本发明实施例提供了一种动力电机总成、动力电机控制方法、装置及设备。通过获取动力电机的基础扭矩信息以及当前转速信息,以及获取母线的当前电流参数,能够在当前电流参数表征动力电池处于放电状态时,基于当前电流参数确定出针对动力电机的负扭矩补偿信息,并基于基础扭矩信息以及负扭矩补偿信息确定出第一当前扭矩信息。接着,利用第一当前扭矩信息以及当前转速信息,从预设扭矩控制库中匹配出用于控制动力电机的目标扭矩控制参数,进而利用该目标扭矩控制参数使得动力电机实际输出的扭矩为零,此时母线电流也为零。本发明实施例无需切断动力电机的高压回路,可以实现动力电机扭矩的在线调节,使得动力电机的零扭矩控制过程安全可靠。


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    Title :

    Power motor assembly, power motor control method, device and equipment


    Additional title:

    一种动力电机总成、动力电机控制方法、装置及设备


    Contributors:
    XU XINYI (author) / XU MEIKUN (author) / ZHAO NAFEI (author) / CHENG CHENG (author) / WANG HONGTAO (author)

    Publication date :

    2022-10-04


    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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