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

DOI

Bibliographic Information

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

Abstract

<p>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.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001205755560576
  • NII Article ID
    130006732169
  • DOI
    10.14953/jjsde.2017.2757
  • ISSN
    21889023
    09192948
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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