Table of Contents
International Journal of Vehicular Technology
Volume 2008 (2008), Article ID 859571, 8 pages
Research Article

Fault-Tolerant Control of the Road Wheel Subsystem in a Steer-By-Wire System

1GE Aviation, Cincinnati, OH 45246, USA
2Department of Mechanical Engineering, Purdue School of Engineering & Technology, IUPUI, Indianapolis, IN 46202, USA

Received 22 June 2007; Revised 10 December 2007; Accepted 22 January 2008

Academic Editor: Maode Ma

Copyright © 2008 Bing Zheng and Sohel Anwar. 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.


This paper describes a fault-tolerant steer-by-wire road wheel control system. With dual motor and dual microcontroller architecture, this system has the capability to tolerate single-point failures without degrading the control system performance. The arbitration bus, mechanical arrangement of motors, and the developed control algorithm allow the system to reconfigure itself automatically in the event of a single-point fault, and assure a smooth reconfiguration process. Both simulation and experimental results illustrate the effectiveness of the proposed fault-tolerant control system.