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A New Control Strategy for an Electronic Differential System for Urban Electric Vehicles

Department of Mechanical Engineering, National Cheng Kung University, No.1, University Rd., Tainan 701, Taiwan
Department of Greenergy, National University of Tainan, No.33, Sec. 2, Shu-Lin St., Tainan 700, Taiwan
Planning and Promotion Department, Metal Industries Research & Development Center, Taipei 100, Taiwan
Author to whom correspondence should be addressed.
Inventions 2018, 3(1), 19;
Received: 11 December 2017 / Revised: 14 March 2018 / Accepted: 16 March 2018 / Published: 19 March 2018
(This article belongs to the Special Issue New Inventions in Vehicular Guidance and Control)
PDF [3607 KB, uploaded 3 May 2018]


This paper presents a control strategy that is applied in turning control for decentralized electric vehicles known as the electronic differential system. The conventional mechanical differential has drawbacks, such as bulkiness and slow response. The electric system response is not only ten times faster than its mechanical counterpart, but its accurate control even reduces the loss of power from the motor to the wheel. Through the turning radius from the steering angle command that the driver gives, the controller can distribute torque to each wheel. After controlling each wheel’s rotation, the vehicle can turn in neutral steering. The results show that this strategy can be effectively employed on urban roads. View Full-Text
Keywords: electric vehicle; electronic differential system; torque distribution electric vehicle; electronic differential system; torque distribution

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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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MDPI and ACS Style

Chang, Y.-C.; Lu, C.-Y.; Chen, W.-C.; Hu, J.-S.; Jiang, J.-F.; Chang, T.-K.; Wei, H.-Y. A New Control Strategy for an Electronic Differential System for Urban Electric Vehicles. Inventions 2018, 3, 19.

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