The invention relates to a noise reduction method and device for an automobile multi-motor system, a storage medium and a vehicle. The method comprises the steps that when a first motor and a second motor are both in a running state, the noise frequency and state parameters of the first motor and the noise frequency and state parameters of the second motor are obtained; according to the specific frequency parts of the two motors, harmonic current acting on the other motor is generated in combination with the state parameters of the other motor; and for the common frequency part of the two motors, the phases of the first motor and the second motor on the common noise frequency are controlled to be opposite based on a conventional mode. Compared with the prior art, noise reduction is achieved through pairing of the two motors, the unique frequency and the common frequency are processed respectively, the frequency range capable of being subjected to noise reduction can be greatly widened, and then the vehicle noise is better reduced.

    本发明涉及一种用于汽车多电机系统的降噪方法、装置、存储介质及车辆,其中方法包括:当第一电机和第二电机都处于运行状态时,获取第一电机的噪声频率和状态参数,以及第二电机的噪声频率和状态参数;根据两个电机特有的频率部分,结合另一个电机的状态参数生成作用于另一个电机的谐波电流;对于两个电机共有的频率部分,则基于常规的方式控制第一电机和第二电机在共有噪声频率上的相位相反。与现有技术相比,本发明利用两个电机配对实现降噪,并且针对独有的频率和共有频率分别进行处理,可以极大地提高了可以被降噪的频率范围,进而更好地降低车辆噪声。


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    Title :

    Noise reduction method and device for automobile multi-motor system and automobile


    Additional title:

    用于汽车多电机系统的降噪方法、装置及车辆


    Contributors:
    ZHU KEFEI (author) / YING HONGLIANG (author) / ZHANG JI (author) / ZHANG ZHOUYUN (author)

    Publication date :

    2025-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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