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Multi-speed transmission

A technology for transmissions and transmission housings, which is applied in the direction of vehicle gearboxes, multi-ratio transmissions, transmissions, etc.

Inactive Publication Date: 2008-04-23
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A problem faced by transmission designers and manufacturers is the packaging of planetary gear sets and torque transmitting devices

Method used

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  • Multi-speed transmission
  • Multi-speed transmission
  • Multi-speed transmission

Examples

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Embodiment Construction

[0030] Referring to the drawings, wherein like reference numerals indicate like or corresponding parts throughout the several views, there is shown in FIG. The powertrain 10 of the mechanism 18 .

[0031] The transmission 16 includes an input shaft or member 20 , a planetary gear arrangement 22 and an output shaft or member 24 . The planetary gear arrangement 22 includes planetary gear sets 26 , 28 and 30 , and six selectively engageable torque-transmitting mechanisms 32 , 34 , 36 , 38 , 40 and 42 . The input shaft 20 is drivingly connected to a conventional turbine disposed within the torque converter 14 . The output shaft 24 is drivingly connected to the final reduction mechanism 18 . As is known in the art of vehicle transmissions, the final drive 18 is provided with an output shaft that drives the wheels of the vehicle.

[0032] The transmission 16 has a first end wall 50 , a second end wall 52 and a housing 54 . A housing 54 is connected between the first end wall 50 ...

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PUM

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Abstract

A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and a brake arranged within a transmission housing.

Description

[0001] This application claims priority to US Provisional Application No. 60 / 828,663, filed October 9, 2006. The entire contents of the above application are incorporated herein by reference. technical field [0002] The present application relates generally to multi-speed transmissions having multiple planetary gear sets and multiple torque transmitting devices, and more particularly to transmissions having eight or more gears, three planetary gear sets and multiple torque transmitting devices. Background technique [0003] Currently, automatic transmissions are widely used in passenger cars and trucks. Automatic transmissions are known to provide a plurality of forward gears and at least one reverse gear. Gears are established by using multiple planetary gear sets. Engagement of the gear sets is controlled by a number of fluid-operated torque-transmitting devices, commonly referred to as clutches and brakes. [0004] It has become standard to provide at least four forwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H57/10F16H57/02
CPCF16H3/66F16H2200/2097F16H2200/2046F16H2200/006F16H2200/201
Inventor S·H·维特科普J·M·哈特
Owner GM GLOBAL TECH OPERATIONS LLC