Engine designers need an objective measurement which can be tested on the engine to indicate acceptable idle quality. An experiment was performed to select objective measures based on cylinder pressure data, and two measures were selected. Standard deviation of indicated mean effective pressure (SDimep) is a measure of the statistical instability of combustion. Lowest normalized value (LNV) is a measure of the tendency toward misfire.These two measures are shown for a set of typical engines. The body of data shows the relation of SDimep and LNV to burn duration and timing.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Relating Subjective Idle Quality to Engine Combustion


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1997



    Publication date :

    1997-02-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Relating subjective idle quality to engine combustion

    Hoard,J. / Rehagen,L. / Ford Motor,US | Automotive engineering | 1997





    Human subjective response to steering wheel vibration caused by diesel engine idle

    Ajovalasit,M. / Giacomin,J. / Univ.of Sheffield,GB | Automotive engineering | 2005