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

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Self-Tuning Gain-Scheduled Skyhook Control for Semi-Active Suspension Systems: Implementation and Experiment

반능동 현가시스템용 자기동조 게인조절형 스카이훅 제어기의 구현 및 실험

  • Hong, Kyung-Tae (Dept.of Intelligent Mechanical Engineering, Busan National University) ;
  • Huh, Chang-Do (Dept.of Intelligent Mechanical Engineering, Busan National University) ;
  • Hong, Keum-Shik (Mechanical Technology Research Center, Dept.of Mechanical Engineering, Busan National University)
  • 홍경태 (부산대학교 지능기계공학과) ;
  • 허창도 (부산대학교 지능기계공학과) ;
  • 홍금식 (부산대학교 기계공학부 및 기계기술연구소)
  • Published : 2002.03.01
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Abstract

In this paper, a self-tuning gain-scheduled skyhook control for semi-active suspension systems is investigated. The dynamic characteristics of a continuously variable damper including electro-hydraulic pressure control valves is analyzed. A 2-d.o.f. time-varying quarter-car model that permits variations in sprung mass and suspension spring coefficient is considered. The self-tuning skyhook control algorithm proposed in this paper requires only the measurement of body acceleration. The absolute velocity of the sprung mass and the relative velocity of the suspension deflection are estimated by using integral filters. The skyhook gains are gain-scheduled in such a way that the body acceleration and the dynamic tire force are optimized. An ECU prototype is discussed. Experimental results using a 1/4-ear simulator are discussed. Also, a suspension ECU prototype targeting real implementation is provided.

Keywords

References

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