The invention provides a single-motor coaxial two-gear electric drive axle which comprises a drive motor, a two-gear planetary speed reduction mechanism which comprises a speed reduction planetary row, a composite planetary row, a clutch and a brake; and a differential which comprises a differential shell, a first output half shaft and a second output half shaft, and the second output half shaft and the first output half shaft are coaxial and opposite in output direction. The speed reduction planet row and the composite planet row share the frame, and the structure is more compact; due to the structural design of the compound planet row, the transmission ratio between a high gear and a low gear is reduced, and the economical efficiency and the gear shifting comfort of the vehicle are improved after the two gears are arranged behind the speed reduction planet row.
提供了一种单电机同轴式两档电驱动桥,包括:驱动电机;两档行星减速机构,包括减速行星排、复合行星排、离合器以及制动器;以及差速器,包括差速器壳体、第一输出半轴和第二输出半轴,所述第二输出半轴与第一输出半轴共轴且输出方向相反。该减速行星排和复合行星排共用框架,结构上更加紧凑;复合行星排的结构设计减小了高低档之间的传动比,且两个档位设置于减速行星排之后,提高了车辆的经济性和换挡舒适性。
Single-motor coaxial two-gear electric drive axle
单电机同轴式两档电驱动桥
2022-01-14
Patent
Electronic Resource
Chinese
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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