The invention discloses a rear suspension assembly of an electrically-driven automobile. The rear suspension assembly comprises a rear axle, a driving motor, a first elastic element, a first damper and a damping element. The driving motor is assembled on the middle section of the rear axle and deviates from the axial center position of the rear axle; the two first elastic elements are installed at the two ends of the rear axle respectively. The two first shock absorbers are installed at the two ends of the rear axle respectively. The first end of the damping element is installed on the rear axle or the driving motor, and the second end of the damping element is installed on a vehicle body of the electric drive vehicle. The damping element is additionally arranged on the rear axle of the rear suspension assembly, so that offset frequency vibration caused by the fact that the driving motor is arranged in the axial center of the rear axle in an offset mode can be restrained, and the problem of low-frequency resonance caused by the offset frequency vibration of the rear axle can be eliminated. The elastic element of the rear suspension assembly is prevented from being broken due to low-frequency vibration, and the situation of large-amplitude vibration of a vehicle body caused by low-frequency vibration is also avoided. The invention further discloses an electrically-driven automobile applying the rear suspension assembly.

    本申请公开一种电驱动汽车的后悬挂总成,包括后桥、驱动电机、第一弹性元件、第一减震器和减振元件;驱动电机装配于所述后桥的中段,并偏离所述后桥的轴向中心位置;第一弹性元件为两个,并分别安装于所述后桥的两端处;第一减震器为两个,并分别安装于所述后桥的两端处;减振元件的第一端安装于所述后桥或所述驱动电机,第二端安装于所述电驱动汽车的车身。该后悬挂总成的后桥上增设了减振元件,能抑制因驱动电机偏置于后桥的轴向中心而导致的偏频振动,利于消除因后桥偏频振动导致的低频共振问题,防止后悬挂总成的弹性元件因低频振动而断裂、也避免产生因低频振动引起车身大幅振动的情况。本申请还公开一种应用上述后悬挂总成的电驱动汽车。


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    Title :

    Electrically driven automobile and rear suspension assembly thereof


    Additional title:

    电驱动汽车及其后悬挂总成


    Contributors:
    YANG XIAO (author) / FANG CHAO (author) / XU HAIJUN (author) / GAO HUI (author) / LI HAIJIAN (author) / YE LINWAN (author) / ZHOU ZHIFENG (author) / LIU PENG (author) / ZOU PING (author) / LONG DEMU (author)

    Publication date :

    2023-10-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B60B VEHICLE WHEELS , Räder für Fahrzeuge / 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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