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Solutions for noise and vibration control of electrical systems
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Author: Karine Degrendele

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September 23, 2021August 24, 2022Technical talks on e-NVH

[SIA-CTTM Automotive NVH Comfort 21] Noise due to electromagnetic forces in automotive application

Acoustic noise sources in Hybrid Electric Vehicles or full Electric Vehicles (HEV/EV) must be controlled to guarantee an adequate level of acoustic comfort to both passers-by, drivers, and passengers. This […]

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August 12, 2021August 24, 2022Technical talks on e-NVH

[IOA NVEG 21] Noise due to electromagnetic forces in automotive application

Electromagnetic forces can be a major source of unpleasant noise in electric machines. The presentation focuses on understanding how magnetic noise and vibration are generated by slotting harmonics and switching […]

Measured rotating FRF
July 20, 2020August 4, 2022Technical talks on e-NVH

[ISMA 20] Characterization of EV/HEV NVH issues using electrical machine tooth FRF

The article extends the use of tooth Frequency Response Functions (FRF) concept for the analysis of electric motor Noise, Vibration and Harshness due to electromagnetic forces (e-NVH) at intermediate design […]

Sound pressure level spectrogram of Nissan® Leaf electric powertrain during run-up at maximum torque close to engine (left) and at drivers's ear (right)
November 6, 2019August 10, 2022e-NVH sound library

Noise of electric vehicle powertrain (EV HEV NVH) – case of Hyundai IONIC

Summary of e-NVH sound sample Application Hyundai IONIC® (EV HEV NVH) Electrical machine PMSM Supply condition Run-up at max torque Noise sources Electromagnetic, mechanical, aerodynamic See also BMW I3, NissanLeaf, […]

Spectrogram of BMW I3 electric powertrain during run-up at maximum torque : Acceleration levels on the engine (left), Sound pressure level close to engine (right)
November 6, 2019August 10, 2022e-NVH sound library

Noise of electric vehicle powertrain (EV HEV NVH) – case of BMW I3

Summary of e-NVH sound sample Application BMW I3® (EV HEV NVH) Electrical machine PMa-SynRM also called HSM (p=6 poles, Zs=72 stator slots) Supply condition Run-up at max torque Noise sources […]

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