NDLI: Lateral stability analysis of on-road vehicles using the concept of Lyapunov exponents

Content Provider	IEEE Xplore Digital Library
Author	Sadri, S. Wu, C.Q.
Copyright Year	2012
Description	Author affiliation: Department of Mechanical and Manufacturing Engineering, The University of Manitoba, Winnipeg, Manitoba, Canada (Sadri, S.; Wu, C.Q.)
Abstract	This paper deals with the application of the concept of Lyapunov exponents in vehicle lateral stability analysis. The constructive nature of the available methods for calculating Lyapunov exponents as the ‘invariant’ measure of the dynamics is the main advantage of this concept. The vehicle model has two degrees of freedom (2-DOF), and its non-linearity is caused by the third-order polynomial expression between the sideslip forces on the the tires and the tire sideslip angles. In this paper, firstly, the concept of Lyapunov exponents and the standard algorithm to calculate them are presented. Then, by applying this concept to the case of a straight-line motion, the lateral stability region of the vehicle model is estimated. Moreover, the effects of driving conditions such as the vehicle longitudinal velocity, road friction and steering angle on the stability region are investigated. The comparison of the results obtained by the concept of Lyapunov exponents with those given in literature by simulation based methods verifies the effectiveness of this concept for vehicle lateral stability analysis.
Starting Page	450
Ending Page	455
File Size	1437022
Page Count	6
File Format	PDF
ISBN	9781467321198
ISSN	19310587
e-ISBN	9781467321181
DOI	10.1109/IVS.2012.6232186
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-03
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vehicles Stability analysis Mathematical model Thermal stability Friction Tires Equations
Content Type	Text
Resource Type	Article

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