Engineering Vehicle Sound Quality

Paper #:
  • 972063

Published:
  • 1997-05-20
Citation:
Quinn, D. and Von Hofe, R., "Engineering Vehicle Sound Quality," SAE Technical Paper 972063, 1997, https://doi.org/10.4271/972063.
Pages:
7
Abstract:
The characteristically good fuel economy of the high speed direct injection diesel engine has led to increased market share as the power unit of passenger cars. This trend is particularly true in Europe and, if not halted prematurely by emissions legislation, is likely to continue. However, another characteristic of the high speed DI engine is increased noise and vibration over its gasoline counterpart. This has meant that additional noise and vibration measures are required in order to approach the competitive refinement levels of gasoline engine installations.This paper considers some of the characteristic diesel engine noise and vibration problems associated with vehicle installation and passenger comfort. The paper also discusses subjective and objective assessment and considers approaches to engineering more desirable sound quality.
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