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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Advanced Redundancy Technology for a Drive System Using In-Wheel Motors

1
Keio University, 144-8 Ogura, Saiwai-ku, Kawasaki, 212-0054, Japan
2
Keio Research Institute at SFC, 144-8 Ogura, Saiwai-ku, Kawasaki, 212-0054, Japan
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2007, 1(1), 46-53; https://doi.org/10.3390/wevj1010046
Published: 28 March 2008
PDF [499 KB, uploaded 10 May 2018]

Abstract

In electric vehicles that use in-wheel motors, the right and left traction forces become unbalanced if a motor malfunctions by motor lock or loss of traction, generating yaw moment. Control methods were designed to reduce this effect by stopping the motor output on the opposite side of the same axle. By using a prototype “Eliica” car, the maximum yaw rate and lateral acceleration were compared for a breakdown of one motor with the results from the “Sensitivity to lateral wind” indicated in Z108-76 of the Japanese Automobile Standards Organization. Under redundancy control, the test results were confirmed to be below the tolerance limits
Keywords: Wheel Motor; Inverter, Control System; Vehicle Stability; Safety Wheel Motor; Inverter, Control System; Vehicle Stability; Safety
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Kawakami, K.; Tanabe, H.; Shimizu, H.; Yoshida, H. Advanced Redundancy Technology for a Drive System Using In-Wheel Motors. World Electr. Veh. J. 2007, 1, 46-53.

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