Robust Control Design for Air-Fuel Ratio Fluctuation of Gasoline Engine

• SUZUKI Takashi

  Dept. of Engineering and Applied Sciences, Sophia University

• ICHIYANAGI Mitsuhisa

  Dept. of Engineering and Applied Sciences, Sophia University

書誌事項

タイトル別名

• (1st Report: Development of Feed-Forward Controller with Heat Transfer Model at Intake)

抄録

For further development of the thermal efficiency of gasoline engines, the robust control design of the air-fuel ratio (A/F) fluctuation is one of the most important technologies, because the A/F is maintained at the theoretical constant value, which causes the increase of the catalytic conversion efficiency and the reduction of pollutant emission. We designed two types of robust controllers of A/F considering the heat transfer at intake manifold of gasoline engines. One is the method to change the fuel injection rate by using the feed-forward (FF) controller considering the heat transfer at intake, and the other is that by using the FF controller combined with the feed-back (FB) control using A/F sensor. The experiments were performed under the transient driving condition generated by opening the throttle valve. In the 1st report, the FF controller was designed by modeling the heat transfer at intake and verified by using a single cylinder engine. In the 2nd report, the FF controller combined with the FB control was applied to a multiple cylinder engine. It was found in the 1st report that the FF controller has the high robustness performance for the transient driving condition, because the A/F fluctuations were reduced at approximately 84% by using the FF controller.

収録刊行物

• 設計工学

  設計工学 53 (5), 377-390, 2018

  公益社団法人 日本設計工学会

キーワード

• robust control design
• gasoline engine
• air-fuel ratio
• heat transfer
• single cylinder

詳細情報

• CRID: 1390001205755560576
• NII論文ID: 130006732169
• DOI: 10.14953/jjsde.2017.2757
• ISSN: 21889023
• ISSN: 09192948
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可