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Solutions for noise and vibration control of electrical systems
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Author: Margaux Régniez

Acoustic Pressure Spectrogram measured on-board an electric mountain bike
February 3, 2018August 10, 2022e-NVH sound library

Noise of electric bikes

Summary of e-NVH sound sample Application Scott® “syncros” moutain e-bike, Scott® “e-sub” urban e-bike, Wayscral® urban e-bike Electrical machine Unknown Supply condition Run-up at max torque Noise sources Electromagnetic, mechanical […]

Sound pressure level spectrogram of Toyota ® Prius hybrid electric powertrain during run-up close to engine (left) and at drivers's ear (right) - full electric mode up to 40 km/h
January 31, 2018August 10, 2022e-NVH sound library

Noise of hybrid electric vehicle powertrain (EV HEV NVH) – case of Toyota Prius

Summary of e-NVH sound sample Application Toyota® Prius 2004 (EV HEV NVH) Electrical machine IPMSM (48 stator slots, 8 poles) Supply condition Run-up at max torque Noise sources Electromagnetic, mechanical, […]

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)
January 30, 2018August 10, 2022e-NVH sound library

Noise of electric vehicle powertrain (EV HEV NVH) – case of Nissan Leaf

Summary of e-NVH sound sample Application Nissan Leaf® (EV HEV NVH) Electrical machine IPMSM (48 stator slots, 8 poles) Supply condition Run-up at max torque Noise sources Electromagnetic, mechanical, aerodynamic […]

Picture of the Set-up and Acoustic Pressure Spectrogram obtained for blocked driller
January 30, 2018August 23, 2022e-NVH sound library

Noise of hand power tools

Summary of e-NVH sound sample Application Hand power tools (drillers from Makita® and Bosch®) Electrical machine Geared BLDC Supply condition Run-up at low torque under non sinusoidal supply Noise sources […]

Acoustic Pressure Spectrogram acquired during way up and down of a desk with electric motor
January 30, 2018August 23, 2022e-NVH sound library

Noise of a lifting desk electric motor

Summary of e-NVH sound sample Application Electrically assisted lifting desk (Ikea®) Electrical machine Geared BLDC motor (Brose®) Supply condition Run-up at max torque under non sinusoidal supply Noise sources Electromagnetic, […]

Acoustic Pressure Spectrogram obtained during run-up of the drone
January 26, 2018August 23, 2022e-NVH sound library

Noise of a drone propeller motors

Summary of e-NVH sound sample Application Drone (Marvin® quadcopter) Electrical machine BLDC outrunner (12 stator slots and 7 pole pairs) Supply condition Run-up at no-load under non sinusoidal supply Noise […]

January 26, 2018August 23, 2022e-NVH sound library

Noise of a PWM-supplied traction machine during braking

Summary of e-NVH sound sample Application Subway Electrical machine DC Motor Supply condition Run-down under PWM Noise sources Electromagnetic, aerodynamic, mechanical See also   Measurement set-up Noise is measured at […]

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