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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

Driving Torque Distribution Method for Front-and- Rear- Wheel-Independent-Drive-Type Electric Vehicles (FRID EVs) at the Time of Cornering

1
Graduate School of Tokyo Metropolitan University 6-6, Asahigaoka, Hino-shi, Tokyo, Japan
2
Univance Corporations, 2418 Washes, Kisi-shi, Shizuoka, Japan
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2010, 4(3), 558-566; https://doi.org/10.3390/wevj4030558
Published: 24 September 2010
PDF [1208 KB, uploaded 18 May 2018]

Abstract

This paper describes a driving torque distribution method for front–and-rear-wheel-independent-drivetype electric vehicles (FRID EVs) in which it is possible to get stable steering on a low friction coefficient road surface. This method is characterized by distributing driving torque to the left and right wheels of the front and rear wheels, considering not only load movement of the longitudinal direction but also load movement of the lateral direction which is generated at cornering. The load movements are estimated by detecting components of the 3-axis directions, i.e., longitudinal and lateral accelerations and yaw rate, and the steering angle and friction coefficient μ of the road surface. The effectiveness of the proposed driving torque distribution method was verified using simulators equivalent to the prototype FRID EV simulated with Matlab/Simulink and CarSim software. This method is expected to be indispensable to improving running performance of FRID EVs.
Keywords: EV (electric vehicle); front–and-rear-wheel-independent-drive-type electric vehicles (FRID EVs); load movement; driving torque distribution; cornering; friction coefficient EV (electric vehicle); front–and-rear-wheel-independent-drive-type electric vehicles (FRID EVs); load movement; driving torque distribution; cornering; friction coefficient
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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Mutoh, N.; Nishida, O.; Takayanagi, T.; Kato, T.; Murakami, K. Driving Torque Distribution Method for Front-and- Rear- Wheel-Independent-Drive-Type Electric Vehicles (FRID EVs) at the Time of Cornering. World Electr. Veh. J. 2010, 4, 558-566.

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