This work deals with knock intensity determination. It is quantified by a band-pass filter applied to the combustion chamber pressure signal, using the Fourier Transform. The filtered signal power spectrum is then calculated, as well as its integral through the ⅓ Simpson Rule, which is a measurement of knock intensity. Hence, one can analyze the influence of knock in the engine power, comparing theoretical pressure, torque and power curves with experimental ones for different knock levels.


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    Title :

    Identification and Quantification of Knock in Internal Combustion Engines using Spectral Analysis


    Additional title:

    Sae Technical Papers



    Conference:

    International Mobility Technology Conference and Exhibit ; 2001



    Publication date :

    2001-03-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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