An Objective Assessment Method of Combustion Noise Characteristics in Vehicle Interiors

Torii, Kenji; Noumura, Kousuke

doi:10.4271/2018-01-1283

Cited by 7 publications

(1 citation statement)

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“…In order to address this issue, the authors developed a new sound quality assessment method by combining the time domain combustion noise separation method (T-CNSM) with the dissonant combustion noise index (DCNI) (1) . The former noise separation method has made it possible to extract only the components contributed by in-cylinder pressure (termed "combustion noise" below) from vehicle interior noise during acceleration in an audible form, and the latter index has made it possible to accurately quantify the sound quality of combustion noise.…”

Section: Introductionmentioning

confidence: 99%

Technique to Enhance Engine Combustion Sound Quality in Passenger Compartments at the Early Stage of Vehicle Development

Torii

Tsuruta

2020

IJAE

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This paper discusses a technique for the examination of countermeasures at the early stage of vehicle development to realize efficient enhancement of the engine combustion noise quality. The key point of this technique is to utilize the existing combustion noise quality evaluation method as a simulation technology at the design stage of development. By doing this, the necessary measures can be estimated using the in-cylinder pressures of the newly developed engine measured on the bench and the structure response functions obtained from the previous mass-production vehicle. This process was applied to the new Kei car development and the results demonstrated the effectiveness of above technique.

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Section: Introductionmentioning

confidence: 99%