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Mathematical Problems in Engineering
Volume 2013, Article ID 750896, 7 pages
Research Article

Development of a Refined Rollover Model That Recognizes the Effects of Suspension and Tire Deformation

Department of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China

Received 13 November 2012; Accepted 15 December 2012

Academic Editor: Tsung-Chih Lin

Copyright © 2013 Xiaowen Song 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.


Vehicle rollover represents one of the most dangerous traffic accidents in the world. To improve the antirollover capability of a vehicle, we established an improved rollover model with a particular focus on the effects of independent suspensions and the lateral deformation of the tire. Based on this model, we further developed a new method to mitigate the rollover occurrence by adjusting the stiffness of the spring and the damping coefficient of the damper. Through simulation tests with a brand of SUV, we demonstrated that these adjustments improved the mitigation control as evidenced by better confined steady value and decreased overshoot of the roll angle.