Measurement of ion current signal from HCCI combustion was performed. The aim of the work was to investigate if a measurable ion current signal exists and if it is possible to obtain useful information about the combustion process. Furthermore, influence of mixture quality in terms of air/fuel ratio and EGR on the ion current signal was studied. A conventional spark plug was used as ionization sensor. A DC voltage (85 Volt) was applied across the electrode gap. By measuring the current through the gap the state of the gas can be probed. A comparison between measured pressure and ion current signal was performed, and dynamic models were estimated by using system identification methods.The study shows that an ion current signal can be obtained from HCCI combustion and that the signal level is very sensitive to the fuel/air equivalence ratio. The most important result from this study is that the ion current signal proved to be an excellent indicator of the actual combustion timing which is crucial piece of information for HCCI control.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Ion Current Sensing for HCCI Combustion Feedback


    Additional title:

    Sae Technical Papers



    Conference:

    SAE Powertrain & Fluid Systems Conference & Exhibition ; 2003



    Publication date :

    2003-10-27




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Ion current sensing for HCCI combustion feedback

    Strandh,P. / Christensen,M. / Bengtsson,J. et al. | Automotive engineering | 2003


    Using ion-current sensing to interpret gasoline HCCI combustion processes

    Panousakis,D. / Gazis,A. / Patterson,J. et al. | Automotive engineering | 2006


    Using Ion-current Sensing to Interpret Gasoline HCCI Combustion Processes

    Gazis, Andreas / Blundel, David / Panousakis, Dimitris et al. | SAE Technical Papers | 2006


    HCCI Combustion

    Winklhofer, E. | British Library Conference Proceedings | 2003


    HCCI Combustion

    Winklhofer, E. | British Library Conference Proceedings | 2003