The invention provides a coaxial pure electric driving system and an automobile, and the system comprises a driving device, a first planetary gear train, a second planetary gear train and a gear assembly. The two sides of the driving device are in transmission connection with the first planetary gear train and the second planetary gear train through a first output shaft and a second output shaft correspondingly. The first gear is meshed with the outer wall surface of a first gear ring of the first planetary gear train, and the second gear is meshed with the outer wall surface of a second gear ring of the second planetary gear train; the first gear and the third gear are coaxially and fixedly connected through a first differential shaft, and the second gear and the fourth gear are coaxially and fixedly connected through a second differential shaft. According to the scheme, the differential function can be achieved without a differential mechanism; and no matter whether the outputs on the two sides and the motor have extra speed reduction or not, the coaxial or quasi-coaxial effect can be achieved. In addition, the power output assembly does not need to penetrate through the driving device, the driving device does not need to increase the size of a rotor shaft to adapt to penetration of the output assembly, and the design difficulty of the system is reduced.
本发明提供一种同轴纯电动驱动系统、汽车,其中,系统包括驱动装置、第一行星轮系、第二行星轮系和齿轮组件。驱动装置的两侧分别通过第一输出轴和第二输出轴与第一行星轮系和第二行星轮系传动连接;第一齿轮与第一行星轮系的第一齿圈的外壁面啮合,第二齿轮与第二行星轮系的第二齿圈的外壁面啮合;且第一齿轮和第三齿轮通过第一差速轴同轴固定连接,第二齿轮和第四齿轮通过第二差速轴同轴固定连接。本方案无需设置差速器就可以实现差速功能;且无论两侧输出与电机有无额外减速,均可以做到同轴或准同轴。此外,动力输出组件无需穿过驱动装置,驱动装置无需为了适应输出组件的穿出而增大转子轴的尺寸,减小了系统的设计难度。
Coaxial pure electric driving system and automobile
同轴纯电动驱动系统、汽车
2022-01-21
Patent
Electronic Resource
Chinese
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