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Vibration isolated manual transmission shifter with precise shifting feel

A technology for shifters and transmissions, which is applied to components with teeth, transmission control, transportation and packaging, etc., and can solve the problems of vibration isolation and low gear shifting accuracy of shifter attachments

Inactive Publication Date: 2013-06-19
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, this trade-off often results in shifter attachment settings falling short of the desired performance goals in terms of both vibration isolation and shift accuracy

Method used

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  • Vibration isolated manual transmission shifter with precise shifting feel
  • Vibration isolated manual transmission shifter with precise shifting feel
  • Vibration isolated manual transmission shifter with precise shifting feel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0087] first reference Figure 5 and Figure 6 , showing a schematic diagram of a shifter attachment arrangement 50 for a shifter 52 of a manual transmission 54 of a transmission system 56, wherein the shifter housing 58 of the shifter 52 is exclusively connected to the vehicle body 60 ( such as passage 62), which are presented for explanatory purposes. The shifter 52 is operatively connected to the driveline 56 at the transmission 54 via an articulated shift lever 64 having a pair of U-joints 66 with a propeller (or drive) shaft 68 connected thereto. A gear of the transmission 54 is selected by the driver by the driver grasping a shift lever 70 of the shifter 52 and moving it into a selected gear. The shifter housing 58 is connected to the vehicle body 60 , and more specifically the channel 62 of the vehicle body, via a non-resilient mounting frame 72 that is secured to the channel 62 and the shifter housing 58 .

[0088] exist Figure 5 and Figure 6 In the shifter atta...

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PUM

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Abstract

A manual transmission shifter attachment arrangement which provides vibration isolation and precise shifting feel. A fore-aft movable attachment constrains movement of the shifter housing in all directions except a fore-aft direction. A fore-aft linkage causes the shifter housing to move in unison with the driveline in the fore-aft direction and reacts only to applied forces between the driveline and the shifter housing parallel to the fore-aft direction.

Description

technical field [0001] The present invention relates to a driver selected shifter for gears of a manual transmission. More specifically, the present invention relates to a shifter attachment arrangement that provides vibration isolation and precise shift feel. Background technique [0002] The engine in many rear wheel drive motor vehicles is mounted longitudinally and has a manual transmission firmly attached to the rear of the engine block. Together, the engine and transmission form the "powertrain." [0003] Combustion, inertia, and unbalanced forces within the engine create small, high-frequency vibrations that shake the entire powertrain. The most intense of these vibrations is on the torsional or "rolling" axis about the engine's crankshaft. The powertrain is typically attached to the structure of the motor vehicle via three powertrain mounts. The purpose of these mounts is to securely hold the powertrain within the motor vehicle while isolating vibrations generate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/02F16H61/04
CPCB60K20/04F16H59/0208F16H61/26Y10T74/2014
Inventor L.G.哈特莱普G.克罗赫马尔
Owner GM GLOBAL TECH OPERATIONS LLC