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Electric vehicle power drive

A power-driven, electric vehicle technology, applied in the direction of electric vehicles, electromechanical devices, electric components, etc., can solve the problems of affecting the balance of the whole vehicle, reducing the transmission efficiency, and occupying a large space, so as to facilitate the layout of the whole vehicle and improve the transmission efficiency. Efficiency and the effect of reducing assembly errors

Active Publication Date: 2019-03-22
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The powertrain of an electric vehicle is the core of the entire electric vehicle. Most of the existing powertrain structures are center-of-gravity offset structures in which the motor is connected to the transmission shaft and then connected to the drive axle through a gearbox. Larger, and the use of cantilever devices is likely to cause system vibration, form resonance, reduce transmission efficiency, and affect the balance of the vehicle

Method used

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

[0038] Technical solution one:

[0039] An electric vehicle motor transmission integrated drive power assembly, characterized in that it includes a motor 1, a motor hollow gear shaft 2, a long half shaft 3, an input gear shaft 4, a clutch I5, a first-stage driven gear I6, a driven Gear shaft I7, short half shaft 8, differential 9, second stage driving gear 10, first stage driven gear II11, driven gear shaft II12, clutch II13 and output gear 14.

[0040] The...

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Abstract

The invention provides a power driving device of an electric automobile. The device comprises a hollow-shaft motor, a gear box, and a differential, a hollow gear shaft of the motor is connected to an input gear shaft through a spline to transfer power to a transmission system, an output gear and the differential are connected to an integral body, two axle shafts and the differential are connected through a spline, a short axle shaft is connected with a wheel, and a long axle shaft penetrates through the hollow gear shaft of the motor and is connected with the wheel. According to the integrated driving power assembly of the electric automobile, the size and the assembling error between parts can be effectively reduced, the system vibration characteristics are adjusted, and the system transmission efficiency is improved.

Description

technical field [0001] The invention relates to a core electric drive system of an electric vehicle, in particular to a power drive device for an electric vehicle. Background technique [0002] The powertrain of an electric vehicle is the core of the entire electric vehicle. Most of the existing powertrain structures are center-of-gravity offset structures in which the motor is connected to the transmission shaft and then connected to the drive axle through a gearbox. Larger, and the use of cantilever devices is likely to cause system vibration, form resonance, reduce transmission efficiency, and affect the balance of the vehicle. Contents of the invention [0003] The electric vehicle power drive device proposed by the invention can effectively reduce the volume and the assembly error between the components, adjust the vibration characteristics of the system, and improve the transmission efficiency of the system; and the integrated structure ensures radial balance, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116H02K7/10
CPCH02K7/006H02K7/10H02K7/116Y02T10/64
Inventor 李聪波胡捷赵来杰李月肖卫洪单亚帅陈文倩
Owner CHONGQING UNIV