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Centrifugal pendulum vibration absorber

A centrifugal pendulum, shock absorber technology, used in shock absorbers, inertia effect shock absorbers, shock absorbers, etc.

Active Publication Date: 2016-02-17
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One disadvantage, however, is that spring dampers are usually only effective within a usually narrow, predetermined frequency range
The design compromise of spring dampers that must be tuned for a specific frequency range is that they often do not provide adequate damping at certain engine speeds

Method used

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  • Centrifugal pendulum vibration absorber
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  • Centrifugal pendulum vibration absorber

Examples

Experimental program
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Embodiment Construction

[0046] The following description is merely exemplary in nature, and is not intended to limit the disclosure, application, or uses. Referring to FIG. 1 , a centrifugal pendulum damper (CPVA) system is generally indicated by reference numeral 10 . The CPVA system 10 includes a rotating plate 12 and a set of shock absorbers 13 having a plurality of pendulums movably connected to the first plate 12 . Plate 12 is driven by a torque generator to provide drive torque to plate 12 . Accordingly, the plate 12 is rotatable about an axis “A” concentric with the plate 12 . Plate 12 is operable to transmit torque to another component in the motor vehicle, such as a transmission component. For example, plate 12 may be connected to another rotatable plate or member (not shown), which is preferably part of a torque transmitting device such as a torque converter like an automatic transmission or a clutch for a manual transmission. It should be understood, however, that the plate 12 may be co...

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PUM

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Abstract

A centrifugal pendulum vibration absorber (CPVA) absorbs vibration and transmits a torque between an output of an engine and an input of a transmission of a vehicle. The CPVA includes a plate with at least one retaining member and a first set of vibration absorbers with at least one mass supported by the at least one retaining member. The at least one mass has a predefined movement path with respect to the plate. The CPVA further includes a first torsion vibration damper assembly that connects the CPVA to a turbine of a torque converter that is selectively engaged with engine, and a second torsion vibration damper assembly that connects the CPVA to the transmission. The at least one mass absorbs a vibration of a harmonic order generated by the engine.

Description

technical field [0001] The present disclosure relates to systems for absorbing torsional vibrations generated by operation of an engine, and in particular, to systems including high performance centrifugal pendulum dampers configured to absorb torsional vibrations generated during engine operation. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0003] Centrifugal pendulum dampers (CPVA) are commonly used to reduce torsional vibrations in rotating machine parts. For example, a rotating member such as a shaft includes several CPVAs, where each CPVA has a pendulum that oscillates as the shaft rotates. The movement of the pendulum counteracts torque fluctuations transmitted from the engine to the shaft as the shaft rotates, which reduces torque vibrations of the shaft. The CPVA can be designed such that the oscillation frequency of the pendulum match...

Claims

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Application Information

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IPC IPC(8): F16F7/10
CPCF16F15/145F16F7/116
Inventor P.G.奥塔尼斯R.L.梅兰森
Owner GM GLOBAL TECH OPERATIONS LLC
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