The invention provides a novel two-gear electric bridge driving system and a vehicle. The two-gear electric bridge driving system comprises a first planetary wheel mechanism, a second planetary wheelmechanism and a synchronous meshing mechanism which are coaxially arranged. By means of the synchronous meshing mechanism, torque from the outside can be selectively transmitted to a second sun wheelshaft through a first sun wheel shaft or a first planetary wheel carrier and then transmitted to a differential mechanism through the second planetary wheel carrier. Thus, the two-gear electric bridgedriving system according to the invention omits an intermediate shaft and integrates the two planetary wheel mechanisms together compared with a two-gear electric bridge driving system according to the prior art, so that a desired high transmission ratio can be achieved with a more compact structure.
本发明提供了一种新型的两挡电桥驱动系统及车辆。该两挡电桥驱动系统包括彼此同轴配置的第一行星齿轮机构、第二行星齿轮机构和同步啮合机构。借助于同步啮合机构,来自外部的扭矩能够选择性地通过第一太阳轮轴或第一行星轮架传递到第二太阳轮轴,然后通过第二行星轮架再传递到差速器。这样,与根据现有技术的两挡电桥驱动系统相比,根据本发明的两挡电桥驱动系统省略了中间轴,而将两个行星齿轮机构整合在一起,使得能够以更紧凑的结构实现期望的高传动比。
Two-gear electric bridge driving system and vehicle
两挡电桥驱动系统及车辆
2021-03-19
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 |