The invention relates to the technical field of automobile transmission. The embodiment of the invention provides a vehicle and a drive axle device thereof. The drive axle device at least comprises a drive axle shell and two electric power assemblies which are symmetrically arranged, and each electric power assembly comprises a drive motor, a planetary reducer set and a brake. The planetary reducer set comprises a first planetary reducer and a second planetary reducer. The two driving motors are arranged in the driving axle shell, the second planetary reducer is arranged in the driving wheel, and the first planetary reducer is arranged close to the driving motors, so that a torque transmission path can be flexibly controlled, distributed driving is realized, the speed ratio is increased, and the difficulty and cost of driving motor development are reduced; the reliability and the service life of the driving motor are improved, the rotating speed and the torque of the driving wheel can be more conveniently controlled, the transmission efficiency is improved, the electric power and the braking energy are effectively utilized, and the overall structure is more reliable and efficient.

    本申请涉及汽车传动技术领域,本申请实施例提供了一种车辆及其驱动桥装置。驱动桥装置至少包括驱动桥壳体以及对称布置的两个电动力总成,电动力总成中包括驱动电机、行星减速器组和制动器。行星减速器组包括第一行星减速器和第二行星减速器。通过将两个驱动电机布置于驱动桥壳体内,第二行星减速器布置于驱动轮内,第一行星减速器靠近驱动电机布置,如此,可以对扭矩传递路径进行柔性控制,实现分布式驱动,增大了速比,降低了驱动电机开发的难度和成本,提高了驱动电机的可靠性和寿命,可以更方便地控制驱动轮转速和扭矩,提高了传动效率,有效利用电功率和制动能量,整体结构更加可靠及高效。


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    Title :

    Vehicle and drive axle device thereof


    Additional title:

    车辆及其驱动桥装置


    Contributors:
    LIU SHUCHENG (author) / YAO ZHENG (author) / HE RONG (author) / PENG KAIGE (author) / LI GUOZHI (author) / ZHU ZIQIANG (author) / ZHAO CHENGUANG (author) / MENG MIAO (author)

    Publication date :

    2022-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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