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Multi-stage transmission

A technology of transmission and automatic transmission, applied in the direction of vehicle gearbox, multi-gear ratio transmission device, transmission device, etc., can solve the problem of unsuitable front lateral system installation, etc., to achieve driving comfort, small size, and improved consumption reduced effect

Inactive Publication Date: 2015-07-29
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the transmission according to DE 10 2009 028 670 A1 is disadvantageously unsuitable for installation as a front transverse system

Method used

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  • Multi-stage transmission
  • Multi-stage transmission
  • Multi-stage transmission

Examples

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Embodiment Construction

[0035] exist figure 1 shows a multi-stage transmission according to the invention, which comprises a first planetary gear set P1, a second planetary gear set P2 and a third planetary gear set P3, wherein the first planetary gear set P1 is coaxial arranged on a first axis defined by the drive shaft 1 , while the second and third planetary gear sets P2 , P3 are arranged coaxially on a second axis defined by the driven shaft 2 and arranged parallel to the first axis.

[0036] In the example shown, the planetary gear sets P1 , P2 , P3 are configured as negative planetary gear sets. Here, at least one planetary gear set of the transmission can be configured as a positive gear ratio planetary gear when the planetary carrier connection and the ring gear connection are replaced at the same time and the value of the fixed gear ratio is increased by 1 compared to the embodiment as a negative gear ratio planetary gear set Group.

[0037] as by figure 1 It can be seen that six shift el...

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Abstract

The multi-stage transmission according to the invention comprises a drive input shaft (1), a drive output shaft (2), said shafts being arranged parallel to one another, three planetary gear sets, wherein the first planetary gear set (P1) is arranged coaxially with respect to a first axis defined by the drive input shaft (1) and the second and third planetary gear sets (P2, P3) are arranged coaxially with respect to a second axis which is arranged parallel to the first axis and which is defined by the drive output shaft (2), wherein the drive input shaft (1) is detachably connectable by means of a first clutch (13) to a third shaft (3) which is connected to the sun gear of the first planetary gear set (P1) and which can be coupled by means of a first brake (03) to the housing (G) of the transmission, wherein the drive input shaft (1) is detachably connectable by means of a second clutch (17) to a seventh shaft (7) which is connected to the internal gear of the first planetary gear set (P1) and a sixth shaft (6) is connected to the web of the first planetary gear set (P1) and is operatively connected by means of a second spur gear stage (S2) to the tenth shaft (10) which is connected to the internal gear of the third planetary gear set (P3), wherein the drive output shaft (2) is connected to the web of the second planetary gear set (P2) and a fourth shaft (4) is connected to the sun gear of the second planetary gear set (P2) and to the sun gear of the third planetary gear set (P3) and can be coupled by means of a second brake (04) to the housing (G), wherein the drive input shaft (1) is operatively connectable by means of an eighth and a ninth shaft (8, 9), a third or fifth clutch (18, 89) and by means of a first spur gear stage (S1) to the internal gear of the second planetary gear set (P2) and to the web of the third planetary gear set (P3), and wherein the third shaft (3) is operatively connectable by means of a fourth or sixth clutch (35, 15), a fifth and tenth shaft (5, 10) and a third spur gear stage (S3) to the internal gear of the third planetary gear set (P3).

Description

technical field [0001] The invention relates to a multi-speed transmission according to the preamble of claim 1 , in particular an automatic transmission for a motor vehicle. Background technique [0002] According to the prior art, automatic transmissions, in particular automatic transmissions for motor vehicles, comprise a plurality of planetary gearsets which are shifted by means of friction elements or switching elements, such as clutches and brakes, and which are usually connected to slipping and selectable It is connected to a starting element, such as a hydraulic torque converter or a hydraulic coupling, which is selectively equipped with a bridging clutch. [0003] Such automatic transmissions are described several times in the prior art and are subject to constant further development and improvement. These transmissions should therefore have a sufficient number of forward gears as well as at least one reverse gear and well-suited gear ratios for the motor vehicle w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
CPCF16H2200/201F16H2200/2046F16H3/66F16H2003/445F16H2200/0065
Inventor S·贝克
Owner ZF FRIEDRICHSHAFEN AG
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