Title: Design of traction control system for electric scooter using self-organising fuzzy control

Authors: Bo-Chiuan Chen; Chia-Hsing Chu; Shiuh-Jer Huang

Addresses: Department of Vehicle Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Road, Taipei 10608, Taiwan ' Department of Vehicle Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Road, Taipei 10608, Taiwan ' Department of Mechanical Engineering, National Taiwan University of Science and Technology, 43, Sec.4, Keelung Road, Taipei 106, Taiwan

Abstract: A Traction Control System (TCS) using Self-Organising Fuzzy Control (SOFC) is proposed for electric scooter in this paper. Vertical load and traction force observers are used to estimate road friction coefficient. Road condition observer is used to estimate the gradient of road friction coefficient with respect to tyre slip ratio. Reference slip ratio for TCS is determined using estimated gradient. According to the error and error change of slip ratio, SOFC adjusts the torque demand for wheel motor. Simulation and experimental results show that the proposed TCS can detect road friction change and maintain slip ratio in the stable region.

Keywords: TCS; traction control systems; SOFC; self-organising fuzzy control; slip ratio control; wheel motors; electric scooters; control design; vertical load; traction force; road conditions; road friction coefficient; tyre slip ratio; torque demand; simulation.

DOI: 10.1504/IJVD.2013.051587

International Journal of Vehicle Design, 2013 Vol.62 No.1, pp.87 - 100

Received: 24 Jul 2010
Accepted: 13 May 2011
Published online: 12 Apr 2013 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article