Methodology of NVH Improvements for Fuel Pump Noise Issues

Paper #:
  • 2017-01-0442

Published:
  • 2017-03-28
Abstract:
With increase in customer expectations for a quiet and comfortable ride, it has become the need of the hour for automobile manufacturers to continuously improve automobile powertrain NVH. Today's customer has become so aware of vehicle related noises that in-tank fuel pump noise is no exception to this checklist of evaluating cabin NVH. In-tank Fuel pump, that is responsible for delivering the fuel from fuel storage tank to delivery rail, uses an electric motor driven component. The rotating parts (rotor, etc.) produce vibrations that may traverse to tank body & subsequently the vehicle body. Since noise is essentially an audible vibration at its root, these structure borne vibrations may be perceived as noise inside passenger cabin. Additionally, noise may also be produced by fuel flow pulsations if transferred through the piping to the vehicle body. This paper focuses on various approaches to reduce the fuel pump generated noise heard inside passenger cabin. Some of the approaches used for the aforementioned are: dampening or isolating source vibrations, changing modal/frequency response behavior, reducing/eliminating the resonance factor in the traversed medium, etc. These approaches have been formulized based on various iterations conducted at fuel pump level, fuel tank level and piping layout. The results were gauged by subjective feeling as well as objective data measurement. Furthermore, the paper also touches upon the CAE predictions for these iterations and their correlation with actual measured data.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Select
Price
List
Download
$22.00
Mail
$22.00
Members save up to 36% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2016-02-02
Article
2016-02-02
Technical Paper / Journal Article
2004-11-16
Article
2016-02-02
Training / Education
2011-04-12