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Method of manufacturing a transmission clutch assembly with reduced squawk

A manufacturing method and transmission technology, applied in the directions of intermeshing clutches, clutches, fluid-driven clutches, etc., can solve problems such as low efficiency and energy loss, and achieve the effects of reducing whistling, reducing annoying noise, and wide-ranging vibration reduction effects.

Inactive Publication Date: 2013-07-17
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this arrangement is less efficient than the teaching of the present invention due to the need to increase the mass around the entire clutch hub circumference; and, the connection between the clutch hub and the damping ring requires a friction coupling, which also results in unnecessary energy loss

Method used

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  • Method of manufacturing a transmission clutch assembly with reduced squawk
  • Method of manufacturing a transmission clutch assembly with reduced squawk
  • Method of manufacturing a transmission clutch assembly with reduced squawk

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Embodiment Construction

[0022] Referring to the drawings, there are shown different embodiments of a vehicle transmission having a clutch assembly with improved howl reduction capability, like symbols designating like or corresponding parts throughout the views. Significant noise reduction is achieved through the use of a set of mass dampers in the clutch assembly. In one embodiment, for example, the damper is a sprung mass damper coupled to a clutch gear. The mass damper changes the vibration pattern of the clutch gears during engagement, thereby reducing the noise output during shifting. The two runners (also called receivers or grooves) are 180 degrees apart on the clutch gear. Both dampers are press fit into the slots to connect the dampers to the clutch gear. This manufacturing method yields the added lubricating advantage that when the mass damper is coupled in the clutch gear, a lubricant seal is formed between one side of the clutch gear and the other side of the clutch gear.

[0023] In c...

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Abstract

The present disclosure relates to a method of manufacturing a transmission clutch assembly configured to reduce squawk during engagement, the method including: forming a clutch component; and coupling a plurality of mass dampers to the clutch component to split a mode of vibration for the clutch component during engagement.

Description

technical field [0001] This invention relates to squeal (or noise) reduction in vehicle transmission clutch assemblies. Background technique [0002] A modern transmission includes a clutch assembly to control the relative rotational speed of the vehicle's wheels relative to the engine rotational speed. These clutch assemblies include rotating members that alternate between engaged and disengaged positions. During clutch engagement, the clutch components may vibrate relative to the main drive shaft. This vibration can result in an annoying noise commonly referred to as "squawk". Many existing transmissions seek to reduce squeal by improving transmission lubrication or using electromechanical shift control (or electronic shifting). However, it would be more effective to increase the mass of one or more clutch assembly components to alter the vibration pattern of the clutch assembly during engagement. [0003] US Patent No. 7,163,095, entitled "Clutch Assembly with Damper"...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D11/00F16F15/14F16H57/028
CPCF16D25/0638F16D2300/22F16F15/12F16F15/1421F16D25/12
Inventor 吉姆·陈卡尔·加尔巴齐克罗伯特·J·米勒曾昭文
Owner FORD GLOBAL TECH LLC
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