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Summary & Details

Root-Cause Analysis, and Improvement of a Port Fuel Injected V6 Vehicle to Achieve Best-In-Class Sound Quality

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Format: PDF

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Paper/Info type: SAE Paper

No.2021-01-1041

Pages: 1-6(Total 6 p)

Date of publication: Aug 2021

Publisher: SAE International

Language: English

Event: Noise and Vibration Conference & Exhibition

Detailed Information

Author(E)	1) Justin Brosseau, 2) Wei Yuan, 3) Vinod Singh, 4) Jeff Orzechowski
Affiliation(E)	1) FCA US LLC, 2) FCA US LLC, 3) FCA US LLC, 4) FCA US LLC
Abstract(E)	This paper will communicate an in-depth investigation uncovering contributing factors defining the desired and undesired acoustic signature of a V6 Vehicle. A transfer path analysis tool is exercised to rank improvement opportunities. These results are used to drive design improvements with the goal of achieving best-in-class sound quality when executed as a system. A cohesive powertrain-vehicle-level acoustic improvement package is executed, improving air induction, intake manifold, both structure and air-core, exhaust-radiated and under-hood-acoustic encapsulation. The acoustic package was validated by jury testing to provide significant refinement enhancement improving predicted 3rd party scores.

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