Title :
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
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;
Conference_Titel :
Computing, Control and Industrial Engineering (CCIE), 2011 IEEE 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-9599-3
DOI :
10.1109/CCIENG.2011.6008110
