Engine Sound Quality in Sub-Compact Economy Vehicles: A Comparative Case Study HGC Engineering Limited

Format:

Conference/Event

Author/Creator:

Chapnik, Brian, author.

Conference Name:

SAE Noise and Vibration Conference and Exposition (1997-05-20 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

A comparative study was undertaken to investigate engine noise in sub-compact vehicles under typical highway operating conditions.Baseline acoustical testing was performed. Typical sound quality metrics indicated that passenger cabin noise levels and sound quality were similar among all vehicles tested. However, poorer subjective sound quality in a vehicle equipped with a 3-speed automatic transmission was related to a higher degree of perceived periodicity than in other models.Further study of the 3-speed vehicle indicated that installing a 4-speed transmission would reduce noise more effectively than any substantial changes to the vehicle structure or engine mounting system. Damping or barrier treatments applied to the firewall or toe pan did not provide significant benefit

Notes:

Vendor supplied data

Publisher Number:

971977

Access Restriction:

Restricted for use by site license