The analysis and modeling of active front steering system

Author

Bin, Shen ; PengKai, Ji

Author_Institution

Sino-German Sch. for Postgrad. Studies, Tongji Univ., Shanghai, China

Volume

2

fYear

2011

fDate

20-21 Aug. 2011

Firstpage

237

Lastpage

242

Abstract

Active front steering (AFS) system has been the trend of steering technology in recent years by improving the steering comfort and active safety. In this paper, a new layout AFS system combining column mounted AFS actuator with pinion-type electrical power steering (EPS) system is proposed and its dynamic characteristics are analyzed. Three typical variable gear ratio (VGR) actuators are discussed in detail, including a new VGR actuator proposed. Then, the mathematic dynamics formulas of all main parts of the AFS steering system are induced. With Laplace transform, the block diagram model of each part is introduced. The whole dynamic block model of AFS system is built by combining each part´s block systematically. Simulation of the model developed by using PID feedback control is conducted in the environment of Matlab/Simulink to verify the proposed AFS system model.

Keywords

Laplace transforms; actuators; feedback; road safety; steering systems; three-term control; Laplace transform; Matlab-Simulink; PID feedback control; active front steering system; active safety; block diagram model; pinion type electrical power steering system; steering comfort; variable gear ratio actuators; Actuators; Analytical models; Gears; Mathematical model; Steering systems; Torque; Wheels; active front steering; electrical power steering; simulation; system modeling; variable gear ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Computing, Control and Industrial Engineering (CCIE), 2011 IEEE 2nd International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-9599-3

Type

conf

DOI

10.1109/CCIENG.2011.6008110

Filename

6008110