Dynamic friction model-based tire-road friction estimation and emergency braking control

被引:95
作者
Alvarez, L [1 ]
Yi, JG
Horowitz, R
Olmos, L
机构
[1] Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
[2] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA
来源
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME | 2005年 / 127卷 / 01期
关键词
automotive control; adaptive control; nonlinear observers;
D O I
10.1115/1.1870036
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
An adaptive control scheme for emergency braking of vehicles is designed based on a LuGre dynamic model for the tire-road friction. The wheel angular speed and longitudinal vehicle acceleration information are used to design a fast convergence observer to estimate the vehicle velocity and the internal state of the friction model. The unknown parameters of the dynamic friction model are estimated through a parameter adaptation law. A Lyapunov-based state estimator and a stabilizing braking controller are designed to achieve near to maximum braking capability of the vehicle. Underestimation of the maximum friction coefficient, a very desirable feature from the perspective of safety, is guaranteed by a proper choice of adaptation gains and initial values of the estimated friction parameters.
引用
收藏
页码:22 / 32
页数:11
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