According to the coaxial type multi-gear electric drive axle system and the vehicle, by arranging two gear shifting mechanisms, switching of three gears can be achieved, so that the driving requirements under different working conditions are met. Wherein the first gear is used for a low-speed large-torque working condition, the second gear is used for a medium-speed working condition, the third gear is used for a high-speed working condition, and the speed ratio coverage range of the system is effectively expanded. Furthermore, the gear transmission mechanism and the planet row assembly are coaxially arranged, the structure is compact, the transmission efficiency is high, the meshing relation between gear sleeves and combination teeth of the two gear shifting mechanisms is reasonably designed, smooth switching among three gears is achieved, gear shifting impact is avoided, and the driving comfort of the whole vehicle is improved.
本发明涉及一种同轴式多挡电驱桥系统及车辆,通过设置两个换挡机构,能够实现三个挡位的切换,以满足不同工况下的驱动需求。其中一挡用于低速大扭矩工况,二挡用于中速工况,三挡用于高速工况,有效扩大了系统的速比覆盖范围。进一步地,本发明中的齿轮传动机构与行星排总成采用同轴布置方式,结构紧凑,传动效率高,通过合理设计两个换挡机构的齿套与结合齿的啮合关系,实现了三个挡位之间的平顺切换,避免了换挡冲击,提高了整车驾驶舒适性。
Coaxial multi-gear electric drive axle system and vehicle
一种同轴式多挡电驱桥系统及车辆
2025-03-25
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 |
Multi-gear coaxial electric drive axle transmission device
European Patent Office | 2024
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