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Mathematical Problems in Engineering
Volume 2013, Article ID 410864, 7 pages
http://dx.doi.org/10.1155/2013/410864
Research Article

Optimal Slip Ratio Based Fuzzy Control of Acceleration Slip Regulation for Four-Wheel Independent Driving Electric Vehicles

1School of Mechanical Engineering, Southeast University, Nanjing 211189, China
2State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China

Received 26 September 2013; Accepted 27 October 2013

Academic Editor: Hui Zhang

Copyright © 2013 Guodong Yin et al. 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.

Abstract

To improve the driving performance and the stability of the electric vehicle, a novel acceleration slip regulation (ASR) algorithm based on fuzzy logic control strategy is proposed for four-wheel independent driving (4WID) electric vehicles. In the algorithm, angular acceleration and slip rate based fuzzy controller of acceleration slip regulation are designed to maintain the wheel slip within the optimal range by adjusting the motor torque dynamically. In order to evaluate the performance of the algorithm, the models of the main components related to the ASR of the four-wheel independent driving electric vehicle are built in MATLAB/SIMULINK. The simulations show that the driving stability and the safety of the electric vehicle are improved for fuzzy logic control compared with the conventional PID control.