This article describes an application of sliding mode techniques to the design of an air/fuel ratio control system for a 4-stroke engine, to minimize exhaust gas and emissions.This technique allows to achieve good control performance in terms of precision, robustness, and fast transient response.To support sliding mode control a second PI stage was added, based on the signal of a second oxygen sensor installed after the catalytic converter.Experimental results were better than those obtained with a conventional PI control, currently used on production applications.The new control algorithm (sliding mode based on the first oxygen sensor, and PI on the second) is very versatile because the approach chosen allows to calculate the parameters values for the ECU using computer simulation.


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    Title :

    A/F Ratio Control with Sliding Mode Technique


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1995



    Publication date :

    1995-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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