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Multi-stage transmission

一种变速器、离合器的技术，应用在车辆变速箱、多传动比传动装置、传动装置等方向，能够解决变速器构件结构耗费等问题，达到实现行驶舒适性、改善消耗降低、减少结构空间的效果

Inactive Publication Date: 2016-11-09
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In transmission configurations with a large number of gears, the problem arises that the number of transmission components and thus the structural complexity increases dramatically depending on the number of gears

Method used

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Embodiment Construction

[0026] exist figure 1 shows a multi-stage transmission according to the invention, which comprises a drive shaft 1 , a driven shaft 2 and four planetary gearsets P1 , P2 , P3 and P4 which are arranged in a housing G. Planetary gear sets P1, P2, P3, P4 are in figure 1The example shown is configured as a negative planetary gear set. According to the invention, at least one of the planetary gear sets P1, P2, P3, P4 can be configured as a positive ratio planetary gear set, if the planet carrier connection and the ring gear connection are replaced at the same time and the value of the gear train transmission ratio is fixed If it is increased by 1 compared with the embodiment as a planetary gear set with a negative gear ratio.

[0027] In the illustrated embodiment, each planetary gear set P1, P2, P3, P4 is viewed axially as a first planetary gear set P1, a second planetary gear set P2, a third planetary gear set P3, a fourth planetary gear set P4 order settings. According to th...

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Abstract

The multi-speed transmission in planetary design, in particular an automatic transmission for a motor vehicle, comprises an input shaft, an output shaft, four planetary gear sets, which are arranged in a housing, a total of eight rotatable shafts, and six shifting elements, comprising brakes and couplings, whose selective intervening brings about different transmission ratio relationships between the input shaft and the output shaft, such that at least eleven forward gears and one reverse gear are able to be realized.

Description

technical field [0001] The invention relates to a multi-stage transmission with a planetary gear structure, especially an automatic transmission for motor vehicles. 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 shifting 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 torque converter or a fluid coupling, which is optionally equipped with a clutch. [0003] Generally speaking, vehicle transmissions of automatically shiftable planetary gear design have already been described extensively in the prior art and are constantly being further developed and improved. These transmissions should require low structural outlay, especially a small number of shifting elements, and should avoid double shifti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/66
CPCF16H3/66F16H2200/0073F16H2200/0082F16H2200/2012F16H2200/2046F16H2200/2064F16H2200/2094
Inventor S·贝克C·西布拉W·里格尔
Owner ZF FRIEDRICHSHAFEN AG
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