The invention relates to an electric drive assembly, a four-wheel drive system and a vehicle. The electric drive assembly comprises a first motor, a second motor, a first speed reducer, a second speed reducer, a first half shaft and a second half shaft. The speed ratio of the first speed reducer is the same as that of the second speed reducer, and the decoupling rate sigma between the meshing frequency fz of the last-stage reduction gear set of the first speed reducer and the meshing frequency fy of the last-stage reduction gear set of the second speed reducer is larger than 8%, the decoupling rate sigma is determined according to the meshing frequency fz of the last-stage reduction gear set of the first speed reducer and the meshing frequency fy of the last-stage reduction gear set of the second speed reducer. According to the electric drive assembly, the problem of abnormal jittering or buzzing abnormal sound of an existing drive system which is independently driven by double motors in a concentrated mode on the wheel edge can be effectively solved.

    本申请涉及一种电驱动总成、四驱系统及车辆,该电驱动总成包括第一电机、第二电机、第一减速器、第二减速器、第一半轴及第二半轴;第一减速器的速比与第二减速器的速比相同,第一减速器最后一级减速齿轮组的啮合频率fz与第二减速器最后一级减速齿轮组的啮合频率fy之间的解耦率σ大于8%,其中,解耦率σ根据第一减速器最后一级减速齿轮组的啮合频率fz与第二减速器最后一级减速齿轮组的啮合频率fy确定。本申请的电驱动总成,能够有效解决现有的集中布置的双电机轮边独立驱动的驱动系统的异常抖动或嗡嗡异响问题。


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    Title :

    Electric drive assembly, four-wheel drive system and vehicle


    Additional title:

    电驱动总成、四驱系统及车辆


    Contributors:
    BAI YUNHUI (author) / WANG KUNCHENG (author) / YANG SHENGLIN (author) / GAO YUAN (author) / WANG YANJUN (author)

    Publication date :

    2024-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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