The integrity of the exhaust emission system in a passenger vehicle can best be maintained by monitoring its performance continuously on board the vehicle. It is with the intent of monitoring emission system performance that the California Air Resources Board has proposed regulations which will require vehicles to be equipped with on-board monitoring systems. These proposed regulations are known as OBDII. The authors discuss a method of monitoring engine misfire as part of the OBDII requirements for passenger vehicle on-board diagnostics. The method is relatively inexpensive in that it uses and existing sensor for measuring instantaneous crankshaft angular position, and utilizes electronic signal processing which can be implemented in relatively inexpensive custom integrated circuits.


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    Title :

    Onboard detection of internal combustion engine misfires


    Additional title:

    Bordeigene Erkennung von Fehlzündungen bei Verbrennungsmotoren


    Contributors:
    Rizzoni, G. (author) / Ribbens, W.B. (author)


    Publication date :

    1990


    Size :

    11 Seiten, 23 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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