Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Design of a Disturbance Observer based Control System to Ensure Robust Stability of Quarter-Car Suspensions

1/4 차량 현가 장치의 강인 안정성을 보장하는 외란관측기 기반의 제어 시스템 설계

  • 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)
  • 소상균 (한밭대학교 전자제어공학과) ;
  • 류정래 (서울과학기술대학교 전기정보공학과) ;
  • 도태용 (한밭대학교 전자제어공학과)
  • Received : 2016.10.05
  • Accepted : 2016.11.02
  • Published : 2016.12.01
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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.

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References

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