PID and adaptive learning control for engine air-fuel control system

PID 및 적응학습 제어기법을 이용한 자동화 엔진의 공기-연료비 제어시스템 연구

  • Lee, Deong-Kyoo (Dept. of Electrical Engineering Yonsei University) ;
  • Choi, Don (Dept. of Electrical Engineering Yonsei University) ;
  • Woo, Kwang-Bang (Dept. of Electrical Engineering Yonsei University)
  • 이덕규 (연세대학교 공과대학 전기공학과) ;
  • 최돈 (연세대학교 공과대학 전기공학과) ;
  • 우광방 (연세대학교 공과대학 전기공학과)
  • Published : 1990.10.01

Abstract

In the air-fuel control of automotive engine to improve its efficiency, fuel economy and less emissions, conventional control methods using $O_{2}$ sensor or the lean air-fuel ratio sensor provide only open control in rich conditions. Control with a wide range air-fuel sensor makes it possible to employ closed loop control for all engine conditions including rich combustion. With a wide range A/F sensor and A/F transfer functions, a PID control system is constructed which employs an learning scheme. A/F controller is designed which enables to improve the ability of its compensation for sensors and actuators, and its control operation is evaluated by computer simulation.

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