Prediction of Automotive Air-Handling System Flow Noise Sound Quality Using Sub-System Measurements

Paper #:
  • 2015-01-2273

Published:
  • 2015-06-15
DOI:
  • 10.4271/2015-01-2273
Citation:
Jones, C., Liu, Z., Venkatappa, S., and Hurd, J., "Prediction of Automotive Air-Handling System Flow Noise Sound Quality Using Sub-System Measurements," SAE Technical Paper 2015-01-2273, 2015, https://doi.org/10.4271/2015-01-2273.
Pages:
4
Abstract:
This paper presents the methodology of predicting vehicle level automotive air-handling system air-rush noise sound quality (SQ) using the sub-system level measurement. Measurement setup in both vehicle level and sub-system levels are described. To assess the air-rush noise SQ, both 1/3 octave band sound pressure level (SPL) and overall Zwicker's loudness are used. The “Sound Quality Correlation Functions (SQCF)” between sub-system level and vehicle level are developed for the specified climate control modes and vehicle segment defined by J.D. Power & Associates, while the Zwicker's loudness is calculated using the un-weighted predicted 1/3 octave band SPL. The predicting models are demonstrated in very good agreement with the measured data. The methodology is applied to the development of sub-system SQ requirement for upfront delivery of the optimum design to meet global customer satisfaction
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