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Article

Torsional Resonance Noise Reduction by Motor Torque Phase Adjustment

by
Masanori Arata
1,*,
Norio Takahashi
1,
Motoyasu Mochizuki
1,
Takashi Araki
2 and
Takashi Hanai
2
1
TOSHIBA CORPORATION, 2-4, Suehiro-cho, Tsurumi-ku Yokohama, Kanagawa, 230-0045, Japan
2
Toshiba Industrial Products Manufacturing Co.
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2012, 5(2), 527-532; https://doi.org/10.3390/wevj5020527
Published: 29 June 2012

Abstract

A Hybrid Vehicle (HEV) and an Electric Vehicle (EV) are some of solutions to improve efficiency of a cruse and to reduce CO2 gas by regenerative breaking and operating the engine in optimum condition. It is requested to decrease the motor size and to increase the maximum torque for minimizing the driving units. For these purposes permanent magnet applied motors have been commonly used recently. The motor driving systems of HEV or EV must operate at variable speed ranges of up to 1:5. For this large range, Silent and smooth operations are desirable and important. Skew method is often adopted to ensure smooth start and stop and silent operation by reducing the torque ripple. But it possibly causes noise and vibration of the motor. This paper describes the mechanism of torsional resonance noise and vibrations arising from the skew method and the countermeasure to decrease them.
Keywords: AC motor; EV; HEV; noise AC motor; EV; HEV; noise

Share and Cite

MDPI and ACS Style

Arata, M.; Takahashi, N.; Mochizuki, M.; Araki, T.; Hanai, T. Torsional Resonance Noise Reduction by Motor Torque Phase Adjustment. World Electr. Veh. J. 2012, 5, 527-532. https://doi.org/10.3390/wevj5020527

AMA Style

Arata M, Takahashi N, Mochizuki M, Araki T, Hanai T. Torsional Resonance Noise Reduction by Motor Torque Phase Adjustment. World Electric Vehicle Journal. 2012; 5(2):527-532. https://doi.org/10.3390/wevj5020527

Chicago/Turabian Style

Arata, Masanori, Norio Takahashi, Motoyasu Mochizuki, Takashi Araki, and Takashi Hanai. 2012. "Torsional Resonance Noise Reduction by Motor Torque Phase Adjustment" World Electric Vehicle Journal 5, no. 2: 527-532. https://doi.org/10.3390/wevj5020527

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