Title: Fast estimation and compensation of the tyre force in real time control for vehicle dynamic stability control system

Authors: Liang Li, Jian Song, Huiyi Wang, Chao Wu

Addresses: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, PR China. ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, PR China. ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, PR China. ' Institute for Systems Research, University of Maryland, College Park, MD, 20742, MD, USA

Abstract: This paper develops a novel algorithm to estimate and compensate the tyre force for the vehicle Dynamic Stability Control (DSC). The algorithm is based on the active brake control of the full subsystems, and the robustness is achieved by using the compensation method. With this algorithm, the vehicle DSC system will precisely prevent the vehicle deviating from the normal attitude and improve the system|s stability in the limited handling conditions. The results of the software-in-the-loops simulation and the ground test in the real car show the effectiveness of the proposed algorithm when the vehicle is subjected to limited handling manoeuvres even in low friction condition.

Keywords: vehicle dynamics; stability control; fast estimation; fast compensation; tyre force; real time control; active brake modelling; vehicle control; vehicle design; dynamic stability control; vehicle handling; vehicle braking.

DOI: 10.1504/IJVD.2008.022577

International Journal of Vehicle Design, 2008 Vol.48 No.3/4, pp.208 - 229

Published online: 16 Jan 2009 *

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