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Modeling and Active Control of an Air-Cell Seat for Ride-Comfort Improvement

승차감 향상을 위한 에어셀시트의 모델링 및 능동제어

  • 홍금식 (부산대학교 기계공학부) ;
  • 황수환 (현대기아자동차 남양연구소) ;
  • 홍경태 (부산대학교 지능기계공학과) ;
  • 유완석 (부산대학교 기계공학부)
  • Published : 2004.11.01

Abstract

In this paper, an active vibration control with the use of an air-cell seat for passenger cars is investigated. The roles of the air-cell inserted between the polyurethane foam of the seat and seat cover are first to extend the seat's capability to adopt various shapes of human body and to improve the ride-comfort against road disturbances. The air-cell seat is modeled as a 1-d.o.f. spring-damper system. Because an exact modeling of the air-cell itself is alomost impossible, its dynamic characteristics are analyzed through experiments. A road-adaptive gain-scheduled sky-hook control for the air-cell seat system is proposed. The skyhook gains are scheduled in such a way that the acceleration level transmitted to human body on various road conditions is minimized. Simulations and experimental results are provided.

Keywords

Air-Cell Seat;Gain Scheduling;Ride Comfort;Road-Adaptive Control;Skyhook Control;Vehicle Control

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