Passenger Vehicle Hybrid Hydraulic Powertrain Sound Quality Investigation

Paper #:
  • 2013-01-2004

Published:
  • 2013-05-13
DOI:
  • 10.4271/2013-01-2004
Citation:
Szatkowski, A., "Passenger Vehicle Hybrid Hydraulic Powertrain Sound Quality Investigation," SAE Technical Paper 2013-01-2004, 2013, https://doi.org/10.4271/2013-01-2004.
Author(s):
Affiliated:
Pages:
7
Abstract:
The sound quality of a prototype series hydraulic hybrid passenger vehicle powertrain was analyzed. Different sound quality metrics were evaluated to determine which one correlated best with the subjective assessment of sound quality, and a desired sound quality target was developed.Next, the effect of the design of the hydraulic powertrain components on sound quality was analyzed. Two extreme options were analyzed: “stiff” systems with a hard drive shaft or short fluid hoses, and “soft” systems with a soft drive shaft or long fluid hoses. Experimental results from these systems are presented in the paper.Finally, design recommendations were made to achieve the best sound quality of the hybrid hydraulic powertrain, and therefore maximum customer satisfaction.
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