Journal
APPLIED ACOUSTICS
Volume 113, Issue -, Pages 89-101Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apacoust.2016.06.012
Keywords
Electric vehicle; Vehicle noise; Propulsion noise; Rolling noise; Noise prediction; CNOSSOS-EU; Tyre label
Categories
Funding
- CEDR Transnational Road Research Programme
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The CNOSSOS-EU method is recommended in Europe for environmental noise prediction. In regards to road traffic, it includes vehicle noise emission models implicitly referring to internal combustion vehicles. The development of electrically driven vehicles calls for the future consideration of these vehicles in prediction models. On the basis of experimental data, the study reported in this paper proposes a noise emission model for extending CNOSSOS-EU to light electric vehicles. Correction terms to be applied to the propulsion noise component are determined. Investigations on a sample of tyres with good rolling resistance performance, which is a main tyre selection criterion on these vehicles, indicated that no correction is required for the rolling noise component. Differences between the noise emission from conventional vehicles and electric vehicles are discussed for several road surfaces. Owing to the limited vehicle sample as well as transitional statements, this new model for electric vehicles running at constant speed over 20 km/h should be considered as a first step towards the definition of this vehicle technology in CNOSSOS-EU. (C) 2016 Elsevier Ltd. All rights reserved.
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