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Multi-gear transmission

A multi-speed transmission, transmission technology, applied in the direction of vehicle gearbox, multi-gear ratio transmission, transmission, etc., can solve the problem of no improvement and improvement of durability, and achieve improved driving comfort, reduced wear, and improved durability. The effect of total driving gear efficiency

Inactive Publication Date: 2011-05-18
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Automatically shifted automotive transmissions, generally in the form of a planetary structure, have been disclosed in the prior art in various ways, and have not undergone durable improvements and enhancements.

Method used

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Embodiment Construction

[0028] exist figure 1 A multi-speed transmission according to the invention with an input shaft 1 (An) and an input shaft 2 (Ab), which is arranged in a housing G, is shown in . It provides three planetary gearsets P1 , P2 , P3 , which preferably form negative planetary gearsets and are axially arranged in sequence P1 , P2 , P3 .

[0029] as from figure 1 As clearly indicated, only six shift elements are provided, namely two brakes 03, 04 and four clutches 13, 14, 36 and 56. Via these shift elements, selective engagement of preferably seven forward gears and one reverse gear is possible. The multi-speed transmission of the present invention has a total of seven rotatable shafts, namely shafts 1, 2, 3, 4, 5 and 6.

[0030] According to the present invention, in figure 1 In a multi-speed transmission, the drive takes place via shaft 1, which is permanently connected to the sun gear of the second planetary gearset P2, releasably connected to shaft 3 via clutch 13, and releasa...

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Abstract

The invention provides a multi-gear transmission provided with seven forward gears and one reverse gear. The transmission comprises an input shaft (1); an output shaft (2); three planetary gear sets (P1, P2 and P3); six rotatable shafts (1, 2, 3, 4, 5 and 6); six gear change components (03, 04, 13, 14, 34, 35, 36 and 56). The input shaft (1) is connected with the central gear of the planetary gear set (P2), and is connected with the shaft (3) through a clutch (13) and the shaft (4) through a clutch (14). The shaft (3) is connected with the bridging part of the planetary gear set (P1), is coupled in an encloser (G) through a detent (03), and is connected with the shaft (6) connected with the hollow wheel of the planetary gear set (P2). The shaft (4) is connected with the center wheel of the planetary gear set (P1), and is coupled in the encloser (G) through a detent (04). The shaft (5) is connected with the hollow wheel of the planetary gear set (P1) and the bridging part of the planetary gear set (P3). The output shaft (2) is connected with the bridging part of the planetary gear set (P2) and the hollow wheel of the planetary gear set (P3). The center wheel of the planetary gear set (P3) is connected with the encloser (G) in a torsion resistant way. The shaft (5) is connected with the shaft (6) through a clutch (56); or the shaft (5) is connected with the shaft (3) through a clutch (35); or the shaft (3) is connected with the shaft (4) through a clutch (34).

Description

technical field [0001] The present invention relates to a multi-speed transmission in a planetary structure as described in the preamble of claim 1, in particular to an automatic transmission for a vehicle. Background technique [0002] According to the prior art, automatic transmissions, in particular automatic transmissions for automobiles, comprise planetary gear sets which are switched by means of friction or shifting elements such as clutches or brakes, and which are usually connected to a slipping and optionally provided The actuating element of the splitter clutch is connected such as a hydrodynamic torque converter or a fluid coupling. [0003] Such a transmission is disclosed in EP0434525A1. It basically includes: an input shaft and an output shaft, which are arranged parallel to each other; a double planetary gear set, which is arranged concentrically with the output shaft; and five shift elements, which are three clutches and two brakes, which The selector inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/66
CPCF16H3/66F16H2200/2046F16H2200/0056F16H2200/201F16H2200/2097
Inventor 格哈德·贡波采伯格
Owner ZF FRIEDRICHSHAFEN AG
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