Electric drive axle structure with double motors and working method of electric drive axle structure

Abstract

The invention discloses an electric drive axle structure with double motors and a working method of the electric drive axle structure, and belongs to the technical field of automobile transmission systems. The structure comprises a first motor, a second motor, an epicyclic gear train, a driving gear, a driven gear, a differential mechanism, a driving half shaft and a brake. The first motor stator, the first motor rotor, the second motor stator and the second motor rotor are all arranged on the shaft; the epicyclic gear train comprises a gear ring, a planet carrier, a sun gear and a planet gear; the first motor rotor is fixedly connected with the sun gear, the second motor rotor is fixedly connected with the gear ring, and the gear ring is connected with the brake; one side of the planet carrier is connected with the planet wheel, the other side of the planet carrier is connected with the driving gear, the driving gear is meshed with the driven gear, and the driven gear is connected with the differential mechanism which is connected with the driving half shaft. The invention is compact in structure, high in flexibility, easy to install and maintain and capable of being suitable for different operation working conditions, and the cruising ability of the vehicle is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of automobile transmission systems, and in particular relates to an electric drive axle structure with double motors and a working method thereof. Background technique [0002] The rapid development of the electric vehicle industry has become an inevitable trend, and will eventually promote the electrification of the automobile industry. Extended-range vehicles play an important role in this industry. Axle products, as an important part of the vehicle, will also follow the development trend of vehicle electrification. [0003] At present, commercial vehicle electric drive axle technology, as an important technology of the whole vehicle, has been paid more and more attention. As the power source of the vehicle, the performance of the electric drive axle directly affects the power, economy and passability of the vehicle. In order to improve the power performance of the vehicle, major manufacturers use relati...

AI Technical Summary

Problems solved by technology

In the limited space of the drive axle, the high-power motor and reducer occupy a large layout space, which affects the trafficability of the car

[0004] At the same time, in the current disclosed technology, there are coaxial and parallel shaft electric drive axles, and their deceleration mechanisms are all realized by shift paddles, and the structure is relatively complex, less reliable

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