Integrated control of automobile steering and suspension system for disturbance suppression

Author

Liu, Xiangui

Author_Institution

Dept. of Mech. & Power Eng., Nanchang Inst. of Technol., Nanchang

fYear

2008

fDate

25-27 June 2008

Firstpage

7321

Lastpage

7326

Abstract

A vehicle nonlinear lateral and vertical dynamics model is built under crosswind disturbance. With the L₂ -gain method of disturbance suppression, the nonlinear h_infin output feedback controller is designed for the integrated system of EPS/ASS with considerations of random road input and strong crosswind disturbance. Simulation results for driver-vehicle-road closed-loop system show that the designed controller suppresses the disturbances is effectively and improves handling stability, handiness and ride characteristics of a vehicle.

Keywords

H^infin control; automobiles; centralised control; closed loop systems; control system synthesis; feedback; mechanical stability; nonlinear control systems; steering systems; suspensions (mechanical components); vehicle dynamics; L₂-gain method; automobile steering; crosswind disturbance; disturbance suppression; driver-vehicle-road closed-loop system; integrated control; nonlinear H_infin output feedback controller; suspension system; vehicle nonlinear lateral dynamics model; vehicle nonlinear vertical dynamics model; Automobiles; Centralized control; Control systems; Nonlinear control systems; Nonlinear dynamical systems; Output feedback; Roads; Stability; Vehicle driving; Vehicle dynamics; L2-gain; conference automobile; crosswind; integrated control; nonlinear;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on

Conference_Location

Chongqing

Print_ISBN

978-1-4244-2113-8

Electronic_ISBN

978-1-4244-2114-5

Type

conf

DOI

10.1109/WCICA.2008.4594059

Filename

4594059