The invention provides a motor controller. The motor controller comprises a control device and three switch bridge arms. The control device is used for adjusting the switching frequency of the upper bridge arm switching tube and the lower bridge arm switching tube in the three switching bridge arms and/or the type of a switching control signal according to at least one of the comparison result of the rotating speed of the motor and the preset rotating speed and the comparison result of the temperature of the motor controller and the preset temperature. The invention further provides a power assembly and an electric vehicle. Therefore, according to the motor controller, the power assembly and the electric vehicle provided by the invention, the balance between the NVH performance of the power assembly and the temperature of the motor controller can be optimized.

    本申请提供一种电机控制器,包括控制装置和三个开关桥臂。其中,控制装置用于根据电机的转速与预设转速的比较结果、电机控制器的温度与预设温度的比较结果中的至少一个,调整三个开关桥臂中上桥臂开关管和下桥臂开关管的开关频率和/或切换控制信号的类型。本申请还提供一种动力总成和电动汽车。由此,本申请提供的电机控制器、动力总成和电动汽车,可以优化动力总成的NVH性能与电机控制器温度之间的平衡。


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    Title :

    Motor controller, power assembly and electric automobile


    Additional title:

    电机控制器、动力总成和电动汽车


    Contributors:
    LI YING (author)

    Publication date :

    2024-08-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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



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