The invention discloses a dual-motor two-stage transmission electric drive axle, and belongs to the technical field of new energy automobile electric drive. The drive axle solves the technical problems of insufficient power and transmission efficiency attenuation of a commercial vehicle under complex working conditions through the innovative combination of dual-motor cooperative driving and a two-stage transmission structure. The first driving motor and the second driving motor are axially arranged in parallel, output gears of the first driving motor and the second driving motor are meshed with an input gear of an intermediate shaft to form two-stage speed reduction transmission, and a differential receives power through an output gear of the intermediate shaft. The hollow shaft design enables the left half shaft to penetrate through the rotor shaft of the first driving motor, coaxial layout of the differential mechanism and the motor is achieved, the transmission stage number is reduced compared with a traditional three-stage speed reduction system, and mechanical efficiency is improved.
本发明公开了一种双电机二级传动电驱动桥,属于新能源汽车电驱动技术领域。该驱动桥通过双电机协同驱动与二级传动结构的创新组合,解决了商用车在复杂工况下动力不足与传动效率衰减的技术难题。具体包括轴向平行并列设置的第一驱动电机和第二驱动电机,其输出齿轮与中间轴输入齿轮共啮形成二级减速传动,差速器通过中间轴输出齿轮接收动力。空心轴设计使左半轴贯穿第一驱动电机转子轴,实现差速器与电机的同轴布局,相较传统三级减速系统减少传动级数,提升机械效率。
Double-motor two-stage transmission electric drive axle
一种双电机二级传动电驱动桥
30.05.2025
Patent
Elektronische Ressource
Chinesisch
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