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Published in:
2019 | OriginalPaper | Chapter
New road noise testing techniques
Authors : Hartmut Bathelt, Heiko Kolm, Kay Schammer
Published in: Automotive Acoustics Conference 2015
Publisher: Springer Fachmedien Wiesbaden
Reviewing the last 20 years of automotive development we realize a convincing progress in NVH behaviour with each model generation. Balancing shafts and reduction of engine speed make engine noise almost inaudible even with 4 cylinder engines and acoustic treatment of soft tops bring down wind noise of cabriolets to limousine level. Nevertheless there is one discipline with the least amount of progress, that’s road noise. It seems that a big part of the progress in sus-pension development has been invested into crisp handling and comfort improvements have almost been eaten up by the fashion trend to 20 inch rims and extreme low section tires. As a result road noise still is the dominant annoyance in long distance driving.
