Title: Modelling and simulation of an active front steering system using Lagrangian dynamics

Authors: Deling Chen, Chengliang Yin, Jianwu Zhang

Addresses: Institute of Automotive Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, No. 800 DongChuan Road, Minhang District, Shanghai, PR China. ' Institute of Automotive Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, No. 800 DongChuan Road, Minhang District, Shanghai, PR China. ' Institute of Automotive Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, No. 800 DongChuan Road, Minhang District, Shanghai, PR China

Abstract: Modelling and simulation provide effective methods for analysing the dynamic characteristics of an Active Front Steering (AFS) system. However, most of the existing research on AFS fails to address the detailed dynamic behaviour of the system. In this paper, a mathematical model of our developed double-motor AFS system has been built using Lagrangian dynamics. The model was further simulated using MATLAB and validated in field test. The results indicate that the model is capable of satisfactorily representing the dynamic responses of the developed AFS system. This work contributes to further understanding and control of the AFS system.

Keywords: AFS; active front steering; mathematical modelling; simulation; Lagrangian dynamics; vehicle steering.

DOI: 10.1504/IJVAS.2008.023578

International Journal of Vehicle Autonomous Systems, 2008 Vol.6 No.3/4, pp.222 - 235

Published online: 02 Mar 2009 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article