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Cury, Davi Machado ; Melo, César Abrahão Pereira ; Faria, Cássio T. ; Oliveira, André de ;


One of the major trends in mobility nowadays is the usage of electric motors in vehicles, encouraged by governments worldwide in search to decrease pollutant emissions and reduce dependence on fossil fuels. This has introduced a whole new challenge for the noise and vibration attributes on motor design, since although there is no combustion phenomena and the gearbox is greatly reduced or non-existent in electric vehicles, new acoustical phenomena happens, such as structural vibrational modes of the stator, or power electronics controller frequency operation. Usually the noise is at higher frequencies than what is experienced on internal combustion engines, which sometimes can lead to a worse acoustic perception of the product. This paper present some of the main noise sources of common electric inner-rotor motor design, and elaborate on typical challenges and particularities of its experimental NVH (Noise, Vibration and Harshness) test and analysis, in comparison to what is common practice on ICE (Internal Combustion Engine) testing and instrumentation.


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DOI: 10.5151/simea2018-PAP164

Referências bibliográficas
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Como citar:

Cury, Davi Machado; Melo, César Abrahão Pereira; Faria, Cássio T.; Oliveira, André de; "CHALLENGES OF NVH TESTING AND ANALYSIS OF ELECTRIC MOTORS", p. 736-759 . In: . São Paulo: Blucher, 2018.
ISSN 2357-7592, DOI 10.5151/simea2018-PAP164

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