The invention provides a double-motor electric drive axle. The double-motor electric drive axle comprises two sets of drive motor modules I, a transmission module II and an axle assembly module III, two sets of driving motor systems are matched to share one set of AMT gearbox, different coupling of driving force under different vehicle speeds and different loads is achieved, real-time power distribution is achieved, for example, double motors work at the same time during rapid acceleration, overtaking, high speed and climbing, and the dynamic property of the whole vehicle is improved; single-motor driving is adopted under common working conditions, the motor load rate is increased, the motor working efficient area is optimized, and the whole vehicle economy is improved; when one group of motors fails, the normal driving function of the double-motor mechanism can still be ensured, so that the safety of the whole vehicle is improved; and the two motors share two-gear gear shifting, the output torque of the motors can be further increased and the motors can work in a high-efficiency interval while the gear shifting reliability is guaranteed, and the dynamic property economy is improved. All the gear transmission speed reduction modules and the planet row speed reduction modules are provided with bearings, bearing sealing pieces and lubricating oil which are needed for supporting rotation of the gear transmission speed reduction modules and the planet row speed reduction modules.
本发明提供一种双电机电驱动桥,包括:两套驱动电机模块Ⅰ、传动模块Ⅱ以及车桥总成模块Ⅲ;通过匹配两套驱动电机系统共用一套AMT变速箱,实现在不同车速、不同负载下的驱动力不同耦合,实现动力实时分配,如急加速、超车、高速、爬坡时双电机同时工作,提高整车动力性;普通工况单电机驱动,提高电机负载率,优化电机工作高效区,提升整车经济性;双电机构型对于其中一组电机失效时,仍能保证其正常行驶功能,提高整车安全性;双电机共用两挡换挡,保证换挡可靠性的同时可进一步提高电机输出扭矩和电机工作在高效率区间,提高动力性经济性。所有齿轮传动减速模块、行星排减速模块都具备支持其旋转运动所需的轴承、轴承密封件以及润滑油。
Double-motor electric drive axle
一种双电机电驱动桥
2021-04-27
Patent
Electronic Resource
Chinese