The invention provides a two-gear variable-speed electric bridge driving system which comprises a system shell, a motor (E), an input shaft (Si), a gear shifting unit (U), a differential mechanism (D) and a planetary gear set (PG); the output torque of the motor (E) is transmitted to the input shaft (Si), the gear shifting unit (U) is arranged on the input shaft (Si), and when the gear shifting unit (U) selects a first gear, the input shaft (Si) transmits the torque to a first gear set; when the shifting unit (U) selects a second gear, the input shaft (Si) transmits torque to the second gear set, the first gear set and the second gear set are used for transmitting torque to a sun gear of the planetary gear set (PG), and the gear ring of the planetary gear set (PG) is connected to the system shell without a relative rotation manner; and a planet carrier of the planetary gear set (PG) is connected to the shell of the differential mechanism (D) without a relative rotation manner. According to the two-gear variable-speed electric bridge driving system, all the components are simple and compact in structure, the system reliability is high, and the NVH influence is small.

    本发明提供一种两挡变速的电桥驱动系统,其包括系统壳体、电机(E)、输入轴(Si)、换挡单元(U)、差速器(D)和行星齿轮组(PG),电机(E)的输出扭矩传递给输入轴(Si),换挡单元(U)设置于输入轴(Si),当换挡单元(U)选择第一挡位时,输入轴(Si)将扭矩传递给第一齿轮组;当换挡单元(U)选择第二挡位时,输入轴(Si)将扭矩传递给第二齿轮组,第一齿轮组和第二齿轮组用于将扭矩传递给行星齿轮组(PG)的太阳轮,行星齿轮组(PG)的齿圈与系统壳体不能相对转动地连接,行星齿轮组(PG)的行星架与差速器(D)的壳体不能相对转动地连接。根据本发明的两挡变速的电桥驱动系统,各部件结构简单且紧凑、系统可靠性高、NVH影响小。


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    Title :

    Two-gear variable-speed electric bridge driving system


    Additional title:

    两挡变速的电桥驱动系统


    Contributors:
    LIU LEI (author) / ZHONG HU (author) / LIU XUAN (author) / SUN XIAOFEI (author)

    Publication date :

    2021-05-11


    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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