Howl, whirr, and whistle: The perception of electric powertrain noise and its importance for perceived quality in electrified vehicles

The technical specifications of electrified vehicles (xEVs) will drastically change the way future vehicles might sound compared to conventional vehicles with internal combustion engines (ICEVs). The electrified powertrain is responsible for a profoundly different profile in vibro-acoustical charact...

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Bibliographic Details
Published in:Applied acoustics 2022-01, Vol.185, p.108412, Article 108412
Main Authors: Münder, Mara, Carbon, Claus-Christian
Format: Article
Language:English
Subjects:
Acoustic Simulator
Ambient 3D Sound
Association Principle
Electric Powertrain Noise
NVH
Perceived Quality
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Summary:The technical specifications of electrified vehicles (xEVs) will drastically change the way future vehicles might sound compared to conventional vehicles with internal combustion engines (ICEVs). The electrified powertrain is responsible for a profoundly different profile in vibro-acoustical characteristics (NVH: noise, vibration, and harshness) and offers the opportunity to create specific sounds related to certain requirements and endorsing associations for increasing the user experience and aesthetic appreciation. The present study’s main aim was to evaluate the perceived emergence of the electric powertrain noise and its implications for perceived quality conveyed by it. Utilizing a sophisticated acoustic simulator presenting ambisonic 3D stimuli from eleven different electrified cars in four different driving scenarios, N = 65 participants evaluated the perceptibility of e-powertrain noise and perceived quality of the vehicle’s interior soundscape. We revealed the auditory modality as an integral part of assessing the product’s quality and gathered qualitative reference points for further investigations.
ISSN:0003-682X
1872-910X
DOI:10.1016/j.apacoust.2021.108412