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Frequency response function of motors for switching noise energy with a new experimental approach

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Abstract

Switching energy in electrical vehicles can create serious noise from the motors. However, the characteristics of switching noise in vehicle motors are not clear due to the complexity of measuring them. This study proposes a new experimental method to investigate the switching noise energy of a vehicle motor based on frequency response functions. A function generator-amplifier system is used to generate the switching energy instead of the complex battery-inverter system that has previously been used to examine the noise energy characteristics. Even though newly adapted experimental method is simple, the switching noise energy was explicitly investigated under various input signals. Thus, this simple new method can be used to investigate the dynamic characteristics of noise energy in a vehicle motor.

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Authors and Affiliations

  1. Ensemble Center for Automotive Research, Seoul, 06258, Korea

    Hyunsu Kim

  2. Department of Mechatronics Engineering, Incheon National University, Incheon, Korea

    Jong-Yun Yoon

Authors
  1. Hyunsu Kim
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  2. Jong-Yun Yoon
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Correspondence to Jong-Yun Yoon.

Additional information

Recommended by Associate Editor Junhong Park

Hyunsu Kim, Ph.D. received his doctor degree at the Ohio State University in 2011 after achieving B.S. from Kookmin University in 2001 and M.S. from University of Cincinnati in 2006. His research area is acoustics of intake/ exhaust system especially focusing on nonlinear characteristics in silencers in the presence of flow. From 2011 to 2016, he worked at Hyundai-Kia Motor Company as a Senior Researcher in the power-train NVH team expanding his area of interest to (hybrid) electrical vehicle motor noise. He is currently CEO of Ensemble Center of Automotive Research.

Jong-Yun Yoon received his Ph.D. from the Department of Mechanical Engineering at the Ohio State University. He is currently an Assistant Professor at Incheon National University. His research interests are in automotive NVH, including nonlinear torsional vibration.

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Kim, H., Yoon, JY. Frequency response function of motors for switching noise energy with a new experimental approach. J Mech Sci Technol 31, 2671–2677 (2017). https://doi.org/10.1007/s12206-017-0510-9

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  • DOI: https://doi.org/10.1007/s12206-017-0510-9

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