Measurements of engine cylinder pressure have become routine at the General Motors Research Laboratories. EDPAC, and Engine Diagnosti c Package, was designed and developed to process these data automatically from single- and multi-cylinder engines in order to provide engine performance and combustion information. EDPAC consists of several self-contained, independent software modules, each having a different analysis function. These include engine performance calculations, pressure volume graphics, engine simulation for residual gas estimates, and heat release analysis. After each module is executed, computed results are stored automatically, providing input to subsequent software modules as well as providing a data base for future interrogation. Routine use of EDPAC to process pressure data results in reductions of costs, effort, and turn-around times. A data base containing performance, emissions, and combustion data is established automatically. (DePo)


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    Title :

    An engine diagnostic package (EDPAC)-software for analyzing cylinder pressure-time data


    Additional title:

    Ein Diagnosesystem fuer Brennkraftmaschinen (EDPAC) - Software fuer die Analyse der Druck-Zeit Daten


    Contributors:

    Published in:

    Publication date :

    1978


    Size :

    15 Seiten, 13 Bilder, 3 Tabellen, 24 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    An Engine Diagnostic Package (EDPAC) - Software for Analyzing Cylinder Pressure-Time Data

    Lienesch, John H. / Young, Michael B. | SAE Technical Papers | 1978


    An Engine Diagnostic Package ( EDPAC ) - Software for Analysing Cylinder Pressure-Time Data

    Young,M.B. / Lienesch,J.H. / General Motors Res.Lab.,US | Automotive engineering | 1978



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