Automobile and electric axis driving system

A drive system, electric shaft technology, applied in the direction of electric power unit, power unit, transmission device, etc., can solve the problem of occupying a lot of axial space and so on

Inactive Publication Date: 2020-02-07
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the structural setting of the existing electric shaft drive system takes up a lot of axial space

Method used

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  • Automobile and electric axis driving system
  • Automobile and electric axis driving system
  • Automobile and electric axis driving system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] It can be seen from the background art that the structural arrangement of the existing electric shaft drive system occupies a large axial space.

[0035] Combined with an electric shaft drive system, the reasons for the above problems are analyzed.

[0036] Please refer to figure 1 , figure 1 It is a structural schematic diagram of an electric shaft drive system.

[0037] Such as figure 1 As shown, an electric shaft drive system includes: a motor 3, a double clutch, a triple planetary gear set and a differential 4, the first clutch 1 in the double clutch and the hollow shaft 51 of the first sun gear of the triple planetary gear set The second clutch 2 of the double clutch is connected with the hollow shaft 61 of the second sun gear of the triple planetary gear set, and the motor output shaft 7 of the motor is connected with the housing of the double clutch. When the first clutch 1 is working, the power transmission path is as follows: the power is transmitted to the...

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PUM

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Abstract

The embodiment of the invention provides an electric axis driving system and an automobile. The electric axis driving system comprises a box body, a differential, a motor, a first multi-linkage planetary gear set, a first clutch and a second clutch, wherein the differential comprises a differential shell; the motor comprises a motor output shaft; the first multi-linkage planetary gear set comprises a first sun gear, a first planet carrier, a first gear ring and a second gear ring, wherein the cross sections of the first gear ring and the second gear ring are mutually in parallel, the first sungear and the motor output shaft are in anti-torque connection, and the first planet carrier and the differential shell are in the anti-torque connection; the first clutch comprises a first steel sheet and a first friction sheet, wherein the first steel sheet and the first friction sheet have an on-off function, the first steel sheet is fixed on the box body, and the first friction sheet is fixedly connected with the first gear ring; and the second clutch comprises a second steel sheet and a second friction sheet, wherein the second steel sheet and the second friction sheet have an on-off function, the second steel sheet is fixed on the box body, and the second friction sheet is fixedly connected with the second gear ring. By use of the electric axis driving system provided by the embodiment of the invention, an axial occupation space is reduced, and the structural compactness of the whole system is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, in particular to an automobile and an electric shaft drive system. Background technique [0002] The electric drive mode of electric vehicles can basically be divided into two types: central motor drive and hub motor drive. Among them, the central motor drive system mainly includes components such as electric motor, fixed speed ratio reducer and differential. In this drive system, since there is no clutch, the volume and mass of the mechanical transmission can be reduced. The central motor drive system can also have another arrangement, that is, the electric motor, the fixed speed reducer and the differential are integrated, and the two half shafts are connected to the two driving wheels. This arrangement is called the electric axle drive system (eAxle Drive System). [0003] However, the structural arrangement of the existing electric shaft drive system occupies a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/16B60K1/00F16H1/32F16H48/08F16H57/021
CPCB60K1/00B60K17/165F16H1/32F16H48/08F16H57/021
Inventor 刘磊黄波
Owner SCHAEFFLER TECH AG & CO KG
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