Dual-motor single-speed parallel-axis electric drive axle with hub speed reduction function

Abstract

The invention discloses a dual-motor single-speed parallel-axis electric drive axle with a hub speed reduction function. The invention belongs to the technical field of automobile manufacturing. The electric drive axle mainly solves the problems that an existing electric drive axle occupies the arrangement space of a chassis structure and influences the arrangement number of batteries. The electric drive axle is mainly characterized by comprising a first motor, a second motor, a gear box, a transmission shaft assembly, a hub reduction gear assembly, a first wheel and a second wheel, the firstmotor and the second motor are mounted on the two sides of the gear box respectively; a speed reducer assembly is arranged in the gear box and comprises a first-stage driving gear, a first-stage driven gear, a second-stage driving gear and a second-stage driven gear, wherein the first-stage driving gear and first-stage driven gear are meshed, and the second-stage driving gear and the second-stagedriven gear are meshed; motor shafts of the first motor and the second motor are parallel to a transmission shaft of the transmission shaft assembly. The electric drive axle has the characteristics ofrelatively small occupied chassis structure arrangement space, no influence on the arrangement number of batteries, wide efficient working area of the motors, high energy utilization rate, long driving range of a vehicle and capability of considering the dynamic property and economy of the whole vehicle, and is mainly used for the dual-motor single-speed parallel-axis electric drive axle with thehub speed reduction function.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing. In particular, it relates to an electric drive axle with double-motor single-speed parallel-shaft pulley-side deceleration. Background technique [0002] The rapid development of the automobile industry and the continuous increase of people's demand for the use of automobiles have led to a continuous increase in the production and ownership of automobiles, thus exacerbating the energy and environmental issues that people are currently concerned about. Pure electric vehicles have the characteristics of low noise, no pollution, diversified energy sources, and high energy efficiency. They are an important way to solve the problem of automobiles in urbanization. [0003] At present, in electric drive axles with single-speed parallel shaft and wheel-side deceleration, automobile manufacturers all use one drive motor. In order to meet the power requirements, the volume and mass of the...

AI Technical Summary

Problems solved by technology

[0003] At present, in electric drive axles with single-speed parallel shaft and wheel-side deceleration, automobile manufacturers all use one drive motor. In order to meet the power requirements, the volume and mass of the motor are relatively large, which not only occupies a large space for the layout of the chassis structure , and also affects the number of battery layouts; it also makes the maximum speed of the motor generally low, the high-efficiency working area of ​​the motor is narrow, and the energy utilization rate is low, resulting in a short driving range of the vehicle, and it is difficult to balance the power and economy of the vehicle

Images