The invention relates to the technical field of vehicles, in particular to a vehicle electric drive system, an electric drive axle and a vehicle, the vehicle electric drive system comprises a planet row and a transmission structure, the planet row comprises a planet wheel, a sun wheel, a planet row gear ring and a planet carrier, and the transmission structure comprises a sliding sleeve, a first transmission shaft and a second transmission shaft. The sliding sleeve is arranged at the output end of the first transmission shaft, a low-speed gear combination ring is arranged at the input end of the second transmission shaft, a high-speed gear combination ring is arranged on the planet carrier, and the planet row gear ring is fixed. The sliding sleeve is provided with a high-speed position used for being combined with the high-speed gear combination ring to drive the planet carrier to rotate and a low-speed position used for being combined with the low-speed gear combination ring to drive the sun gear to rotate. When the sliding sleeve is in the high-speed position, the sliding sleeve drives the planet carrier to rotate through the high-speed gear combination ring so as to directly transmit power out, the planet row gear ring is fixed and does not need to rotate along with the planet row gear ring, meshing loss and stirring loss can be reduced, and transmission efficiency can be improved.

    本发明涉及车辆技术领域,具体涉及一种车辆电驱动系统及电驱动桥、车辆,车辆电驱动系统包括行星排和传动结构,行星排包括行星轮、太阳轮、行星排齿圈和行星架,传动结构包括滑套、第一传动轴、第二传动轴,滑套设置在第一传动轴的输出端,第二传动轴的输入端设有低速挡结合环,行星架上设有高速挡结合环,行星排齿圈固定,滑套具有用于与高速挡结合环结合以带动行星架转动的高速位以及用于与低速挡结合环结合以带动太阳轮转动的低速位;在滑套处于高速位时,滑套通过高速挡结合环带动行星架转动而直接将动力传递出去,行星排齿圈固定不需要随转,有利于减小啮合损失和搅动损失,有利于提高传动效率。


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    Title :

    Vehicle electric drive system, electric drive axle and vehicle


    Additional title:

    一种车辆电驱动系统及电驱动桥、车辆


    Contributors:
    CHENG XIAOWEI (author) / LIU XIAOWEI (author) / LIU DONGFANG (author) / WU SHENGTAO (author) / SHEN LIMIN (author)

    Publication date :

    2023-08-15


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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