Study on Stability of Electric Power Steering System

Author

Li, Zuo ; Wenjiang, Wu

Author_Institution

Sch. of Mech. Eng., Beijing Inst. of Petrochem. Technol., Beijing

fYear

2008

fDate

21-24 Sept. 2008

Firstpage

368

Lastpage

372

Abstract

The stability of the electric power steering system is analyzed on the basis of the mathematics model for pinion -and- rack steering system, the interference resistance is also studied by the way of fixing the steering wheel. The result shows that the stability of the system becomes poor gradually along with the increase of power ratio. The stability can be improved by PD control algorithm, but the influence on the system caused by the measure noise of torque sensor cannot be controlled. If PD combines with the H_infin optimal control, the stability and interference resistance can be effectively improved.

Keywords

H^infin control; PD control; automotive electronics; mathematical analysis; stability; steering systems; H_infin optimal control; PD control algorithm; electric power steering system; interference resistance; pinion-and-rack steering system; torque sensor; Electric resistance; Electrical resistance measurement; Interference; Mathematical model; Mathematics; PD control; Power system modeling; Stability analysis; Steering systems; Wheels; Automobile; Electric Power Steering; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Robotics, Automation and Mechatronics, 2008 IEEE Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-1675-2

Electronic_ISBN

978-1-4244-1676-9

Type

conf

DOI

10.1109/RAMECH.2008.4681347

Filename

4681347