A two-gear electric drive axle arrangement structure for a commercial vehicle comprises an electric drive system, a rear axle assembly, a frame and a universal coupling. The electric drive system comprises an electric drive system shell assembly, a motor and a transmission. The electric drive system shell assembly is arranged behind the rear axle assembly and fixed to the frame in a three-point suspension mode. The motor and the transmission are installed in the electric drive system shell assembly, the transmission comprises an input shaft, an intermediate shaft, a first-gear driving gear, asecond-gear driving gear, a first-gear driven gear, a synchronizer, and the second-gear driven gear, the intermediate shaft and a rear axle main reduction input gear of the rear axle assembly are connected with the two ends of the universal coupling respectively. The two-gear electric drive axle adopts a rear-mounted rear-drive integrated arrangement structure, so that the battery arrangement space is saved for the middle part of a vehicle body; two-gear type power transmission is adopted, so that the working efficiency interval and size of the motor are optimized, and the arrangement space and the whole vehicle power performance are improved; and the problems of poor maneuverability and poor NVH caused by a rear-mounted rear drive integrated arrangement structure are solved.

    一种商用车用两档电驱动桥布置结构,包括电驱动系统、后桥总成、车架、万向联轴器;电驱动系统包括电驱动系统壳体总成、电机、变速器,电驱动系统壳体总成设置于后桥总成的后方且采用三点悬置固定于车架上,电机和变速器安装于电驱动系统壳体总成中,变速器包括输入轴、中间轴、一档主动齿轮、二挡主动齿轮、一档从动齿轮、同步器、二挡从动齿轮,中间轴和后桥总成的后桥主减速输入齿轮分别与万向联轴器的两端连接。本两档电驱动桥采用后置后驱集成式布置结构,为车身中部节省了电池布置空间;采用两档式动力传递,优化了电机的工作效率区间和尺寸,提升了布置空间和整车动力性能;解决了后置后驱集成式布置结构带来的操纵性差和NVH差的问题。


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    Title :

    Two-gear electric drive axle arrangement structure for commercial vehicle


    Additional title:

    一种商用车用两档电驱动桥布置结构


    Contributors:
    WU SIJUN (author) / ZHU LEI (author) / YANG SHOUYIN (author) / WANG XUFENG (author)

    Publication date :

    2020-11-13


    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 / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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