Investigation of NVH phenomena at electric vehicles

Sound quality is one of the key interfaces customers evaluate with their vehicles. New powertrain concepts, either fully electric or hybrid, come with new NVH problems and previously unknown phenomena. The entirely different setup of electric engine and gearbox and the higher rotational speeds are now creating perceivable noises and vibrations at way higher frequencies. Further, the omission of both combustion engine and exhaust system eliminates two of the most dominant sound sources. These systems were typically masking many other sounds, which are now perceivable. Considering the whole vehicle, measurement points and used transducers can remain the same, even though the sound field itself is rather different. While exterior noise is rather exciting due to the regulatory point of view, rotational analysis is still an exciting topic and needs to be further investigated.

  • Supplemental Notes:
    • ATZextra worldwide: Automotive Acoustics. New challenges due to electromobility.
  • Authors:
    • Putner, J
    • Arsic, D
  • Publication Date: 2018-10

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 38-43
  • Serial:
    • ATZ extra worldwide
    • Volume: 23
    • Issue Number: 2
    • Publisher: Springer Vieweg / Springer Fachmedien Wiesbaden GmbH

Subject/Index Terms

Filing Info

  • Accession Number: 01712450
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD
  • Created Date: May 15 2019 4:02AM