The invention provides a two-gear variable-speed electric axle driving system without power interruption, which comprises a duplex planetary gear set (PG), a sun gear of the duplex planetary gear set (PG) is meshed with a second planetary gear (G2), a first planetary gear (G1) is meshed with a first gear ring (R1), and the second planetary gear (G2) is meshed with a second gear ring (R2); an outer hub of the first clutch (C1) is fixed, and an inner hub of the first clutch (C1) is connected with the first gear ring (R1) in a manner of being incapable of rotating relatively; an outer hub of the second clutch (C2) is fixed, and an inner hub of the second clutch (C2) is connected with the second gear ring (R2) in a manner of being incapable of rotating relatively; the output torque of the motor (E) is transmitted to the sun gear, and the output torque of the planet carrier is transmitted to the differential (D). According to the electric axle driving system, gear shifting operation is completed through the two independent clutches, the system structure is simple, and power interruption can be avoided in the gear shifting process.

    本发明提供一种无动力中断的两挡变速电桥驱动系统,其包括双联行星齿轮组(PG),双联行星齿轮组(PG)的太阳轮与第二行星轮(G2)啮合,第一行星轮(G1)与第一齿圈(R1)啮合,第二行星轮(G2)与第二齿圈(R2)啮合;第一离合器(C1)的外毂固定,第一离合器(C1)的内毂与第一齿圈(R1)不能相对转动地连接;第二离合器(C2)的外毂固定,第二离合器(C2)的内毂与第二齿圈(R2)不能相对转动地连接;电机(E)的输出扭矩传递给太阳轮,行星架的输出扭矩传递给差速器(D)。根据本发明的电桥驱动系统,换挡操作由两个独立的离合器完成,系统结构简单,且换挡过程中可以没有动力中断。


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    Title :

    Two-gear variable-speed electric axle driving system without power interruption


    Additional title:

    无动力中断的两挡变速电桥驱动系统


    Contributors:
    LIU LEI (author) / WANG TIANFU (author) / ZHONG HU (author) / ZHAI QINGQUAN (author)

    Publication date :

    2021-04-30


    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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