The invention discloses an electric drive axle system of a double-motor large-torque output W structure. The system comprises symmetrically distributed electric drive axle systems, each electric driveaxle system comprises symmetrically distributed motor assemblies, output shafts of the motor assemblies are connected with driving gears, the driving gears are meshed with driven gears of intermediate shafts, an intermediate shaft driving gear is installed at one end of each intermediate shaft driven gear, and the intermediate shaft driving gears at the two sides are meshed with main reduction quilt teeth respectively and are connected with a differential mechanism through the main reduction quilt teeth . The two motor power inputs, two input shafts, two intermediate shafts, main reduction driven gear, differential mechanism and gear shaft of a W structure are arranged, small width is achieved, the width of an auxiliary frame of a high-end electric vehicle can be reduced, and design of asuspension control arm is greatly optimized; double electricity is adopted, so that the problems of high-torque high-power (more than 800Nm) single-motor manufacturing cost, high-rotating-speed (morethan 15000rpm) bearing and the like are solved; and the low-cost, high-power, large-torque, high-rotating-speed and compact design structure is realized.
本发明公开了一种双电机大扭矩输出W结构的电驱动桥系统,包括对称分布的电驱动桥系统,电驱动桥系统包括对称分布的电机总成,电机总成的输出轴上均连接有主动齿轮,主动齿轮与中间轴被动齿轮啮合,中间轴被动齿轮的一端安装有中间轴主动齿轮,两侧的中间轴主动齿轮分别与主减被齿啮合,共用主减被齿与差速器连接。本发明采用两个电机动力输入,两个输入轴,两个中间轴,一个主减被齿及差速器,W结构的齿轴布置,实现了较小的宽度,有利于高端电动车减小副车架框的宽度,极大优化悬挂控制臂设计;采用双电,避免大扭矩大功率(800Nm以上)单电机制造成本,高转速(15000rpm以上)轴承等问题;实现了低成本,大功率,大扭矩,高转速以及紧凑的设计结构。
Electric drive axle system with double-motor large-torque output W structure
一种双电机大扭矩输出W结构的电驱动桥系统
2021-04-02
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 |