Shuo Zhang
School of Automobile, Chang� an University, 710061, China
Qiang Yu
School of Automobile, Chang� an University, 710061, China
Chenyu Zhou
School of Automobile, Chang� an University, 710061, China
Peilong Shi
School of Automobile, Chang� an University, 710061, China
Peipei Zhang
School of Automobile, Chang� an University, 710061, China
ABSTRACT
The control strategy of Active Front Steering (AFS) which equips vehicle is presented in this study. The proposed control strategy of AFS is designed to meet the demand of the steering characters and control stability of the vehicle. This strategy contains the controller of the variable transmission ratio and the controller of vehicle stability. The first controller applies the fuzzy sliding-mode control method to controlling the angle of the electromotor in order to realize the variable transmission ratio. The second controller put the fuzzy PID control method into use to keep the vehicle stable. According to the two degrees of freedom vehicle model, based on controlling of variable transmission ratio and the yaw velocity, the model of AFS controller is established. The performance of the AFS controller is evaluated by computer simulation. The simulation results demonstrate that: the strategy of AFS makes the vehicle has a good performance of steering characteristics and effectively enhances the control stability, especially in aspect of the surrounding adaptive capacity and driving safety of the vehicle.
PDF References Citation
Received: June 03, 2013;
Accepted: November 06, 2013;
Published: November 11, 2013
How to cite this article
Shuo Zhang, Qiang Yu, Chenyu Zhou, Peilong Shi and Peipei Zhang, 2013. Research on the Control Strategy of Active Front Steering System. Journal of Applied Sciences, 13: 4463-4469.
DOI: 10.3923/jas.2013.4463.4469
URL: https://scialert.net/abstract/?doi=jas.2013.4463.4469
DOI: 10.3923/jas.2013.4463.4469
URL: https://scialert.net/abstract/?doi=jas.2013.4463.4469
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