The invention provides a dual-motor driving system based on a Ravigneaux planetary gear train. The dual-motor driving system comprises the Ravigneaux planetary gear train, a first motor, a second motor, a brake and a power transmission mechanism. The first motor is connected with a large sun gear of the Ravigneaux planetary gear train through a first input shaft; the second motor is connected with a planet carrier of the Ravigneaux planetary gear train through a second input shaft; the power transmission mechanism is connected with the rotating center of a gear ring of the Ravigneaux planetary gear train; the brake is connected with a rotating shaft of a small sun gear of the Ravigneaux planetary gear train and used for braking the small sun gear. Through the arrangement of the two motors and the brake, the driving system has four driving modes, a wider transmission ratio is provided for driving of an automobile, meanwhile, the automobile can be subjected to mode switching under different driving conditions, the most appropriate mode with the highest efficiency is selected for driving, and the driving efficiency of the automobile is improved. Therefore, the purposes of improving transmission efficiency and energy utilization rate are achieved.

    本发明提供一种基于拉维纳式行星轮系的双电机驱动系统,包括拉维纳式行星轮系、第一电机、第二电机、制动器和动力传动机构;第一电机通过第一输入轴与拉维纳式行星轮系的大太阳轮连接;第二电机通过第二输入轴与拉维纳式行星轮系的行星架连接;动力传动机构与拉维纳式行星轮系的齿圈的旋转中心连接;制动器与拉维纳式行星轮系的小太阳轮的旋转轴连接,用于制动小太阳轮。本发明通过两个电机和制动器的设置,使本驱动系统具有四种驱动模式,为汽车的行驶提供更加宽泛的传动比,同时车辆可以在不同的行驶条件下进行模式切换,选择最合适、效率最高的模式进行驱动,以达到提高传动效率和能源利用率的目的。


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    Title :

    Dual-motor driving system based on Ravigneaux planetary gear train


    Additional title:

    一种基于拉维纳式行星轮系的双电机驱动系统


    Contributors:
    TIAN YANG (author) / JI XIAOYU (author) / WEN GUILIN (author) / WANG ZIHAO (author) / ZHANG YAHUI (author) / YI GUANYU (author) / TIAN XIAORUN (author)

    Publication date :

    2022-11-22


    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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