Longitudinal/Lateral Stability Analysis of Vehicle Motion in the Nonlinear Region. (18th August 2016)

• Record Type: Journal Article
• Authors: Chen, Keji; Pei, Xiaofei; Ma, Guocheng; Guo, Xuexun
• Other Names: Liu Yan-Jun Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2016(2016)
• Publication Date: 2016-08-18
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2016/3419108
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : We focus on the study of motion stability of vehicle nonlinear dynamics. The dynamic model combining with Burckhardt tire model is firstly derived. By phase portrait method, the vehicle stability differences of three cases, front wheels steering/four-wheel steering case, front/rear/four-wheel braking case, and high/low road friction case, are characterized. With the Jacobian matrix, the stable equilibrium point is found and stable areas are calculated out. Similarly, the stability boundaries corresponding to different working conditions are also captured. With vehicle braking or accelerating in the steering process, the relationship between front/rear wheel slippage and the stable area is examined. Comparing with current literatures, the research method and its results present the novelty and provide a guideline for new vehicle controller design.