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

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Design of Robust Torque Controller for an Internal Combustion Engine with Uncertainty

내연기관의 강인한 토크제어를 위한 제어계 설계법

  • 김영복 (부경대학교 기계시스템공학과) ;
  • 정정순 (부경대학교 대학원제어기계공학과) ;
  • 이권순 (동아대학교 전기공학과) ;
  • 강희영 (부경대학교 기계시스템공학과)
  • Received : 2010.04.20
  • Accepted : 2010.09.06
  • Published : 2010.11.01
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Abstract

If an internal combustion engine is operated by consolidated control, the minimum fuel consumption is achieved and the demanded objectives are satisfied. For this, it is necessary that the engine is operated on the ideal operating line which satisfies minimum fuel consumption. In this context of view, there are many tries to achieve given object. However, the parameters in the internal combustion engines are variable and depend on the operating points. Therefore, it is necessary to cope with the uncertainties such that the optimal operating may be possible. From this point of view, this paper gives a controller design method and a robust stability condition for engine torque control which satisfies the given control performance and robust stability in the presence of physical parameter perturbation. Exactly, in this paper, we consider the robust stability problem of this 2DOF servosystem with nonlinear type uncertainty in the engine system, and a robust stability condition for the servosystem is shown. This result guarantees that if the plant uncertainty is in the permissible set defined by the given condition, then a gain tuning can be carried out to suppress the influence of the plant uncertainties.

Keywords

Acknowledgement

Grant : 고효율 항만하역시스템 개발사업

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