Coaxial-type dual-motor electric drive axle

Abstract

The invention provides a coaxial-type dual-motor electric drive axle. According to the coaxial-type dual-motor electric drive axle, the power of a whole vehicle cannot be interrupted in the gear shifting process of an electric vehicle, the driving comfort and safety are guaranteed, dual motors can achieve driving through gear combinations with the different speed ratios by means of a speed changer, the structural integration level is high, and installation is convenient. The coaxial-type dual-motor electric drive axle comprises a differential and a first wheel and a second wheel which are arranged on the two sides of the differential respectively; the two output sides of the differential are connected with the first wheel and the second wheel through half shafts respectively, a main speed reducing gear is connected to an input ring gear of the differential in a meshed and sleeving mode, the two half shafts are sleeved with a corresponding first motor and a corresponding second motor respectively, both a first motor shaft of the first motor and a second motor shaft of the second motor are a hollow shaft, the corresponding half shafts penetrate through the center of the first motor shaft and the center of the second motor shaft respectively, the output end of the first motor shaft is sleeved with a first input gear, and the output end of the second motor shaft is sleeved with a second input gear.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a coaxial double-motor electric drive axle. Background technique [0002] With the rapid development of my country's economic construction and the continuous improvement of people's living standards, the number of automobiles in our country is also increasing, which brings huge pressure on our resources and environment. As an important chemical raw material - petroleum, more than half of it is used as fuel for motor vehicles. Therefore, the development of energy-saving vehicles and the use of alternative energy sources are the main ways to alleviate the current energy pressure. [0003] The use of pure electric energy as new energy vehicles has become the mainstream trend. However, the existing electric vehicles are only provided with a power motor. When the output end of the power motor is connected to a shifting structure, the electric The power of the car is inter...

AI Technical Summary

Problems solved by technology

[0003] The use of pure electric energy as new energy vehicles has become the mainstream trend. However, the existing electric vehicles are only equipped with a power motor. When the output end of the power motor is connected with a shifting structure, the electric The power of the car is interrupted, which affects the comfort of the vehicle, and may affect the driving safety of the vehicle in the climbing section

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