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http://dx.doi.org/10.5302/J.ICROS.2016.16.0184

Design of a Disturbance Observer based Control System to Ensure Robust Stability of Quarter-Car Suspensions  

So, Sang Gyun (Department of Electronics and Control Engineering, Hanbat National University)
Ryoo, Jung Rae (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Doh, Tae-Yong (Department of Electronics and Control Engineering, Hanbat National University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.22, no.12, 2016 , pp. 995-1001 More about this Journal
Abstract
The vehicle suspension system plays a very important part related with vehicle ride and handling. To improve the vehicle ride and handling many researches have been progressed from various damping parameter tuning techniques to the development of the electronic controlled suspension systems. In this paper, as one of the ride performance improvement a disturbance observer(DOB) based control system is applied to the quarter car vehicle model in order to show that the DOB can obtain good vibration isolation characteristics. First, the robust stability criterion for the DOB is introduced in detail, and then how DOB is applied to the 1/4 car vehicle model is represented, and finally to confirm the effectiveness of the DOB in vehicle ride performance improvement a computer simulation is carried out for various driving conditions.
Keywords
quarter car; vibration isolation; disturbance observer; q filter; robust performance; robust stability; uncertainties; tracking errors;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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