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Discrete Dynamics in Nature and Society
Volume 2015, Article ID 251207, 8 pages
Research Article

Research on Stability Control Based on the Wheel Speed Difference for the AT Vehicles

School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

Received 12 July 2014; Accepted 25 August 2014

Academic Editor: Heiner Bubb

Copyright © 2015 Hui Jin and Shijie Li. 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 utilizes a linear two-degree-of-freedom vehicle model to calculate the nominal value of the vehicle’s nondrive-wheel speed difference and investigates methods of estimating the yaw acceleration and sideslip angular speed. A vehicular dynamic stability control system utilizing this nondrive-wheel speed difference is then developed, which can effectively improve a vehicle’s dynamic stability at a very low cost. Vehicle cornering processes on roads of different frictions and with different vehicle speeds are explored via simulation, with speed control being applied when vehicle speed is high enough to make the vehicle unstable. Driving simulator tests of vehicle cornering capacity on roads of different friction coefficients are also conducted.