This paper presents the experimental results of measurement of the nonuniformity in diesel engine torque. Measurements were made for an engine driving a water brake dynamometer as well as for a diesel engine (with a manual transmission) in an actual vehicle on roads of varying surface quality. These nonuniformity measurements are a measure of engine performance and have potential application in electronic engine control, maintenance/diagnostic functions and can serve as an indicator of incipient failure of the engine or of certain components.The instrumentation includes a noncontacting (magnetic field system) sensor which can be mounted on the engine with minimal modification. The computation of the nonuniformity index can be implemented with an 8-bit or 1-6-bit microcomputerThis paper presents the theory of the method, explains the necessary instrumentation, and gives results of the experimental study.


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    Title :

    Experimental Road Test of a Noncontacting Method of Measuring I-C Engine Torque Nonuniformity


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1985



    Publication date :

    1985-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Experimental Road Test of a Noncontacting Method of Measuring I-C Engine Torque Nonuniformity.

    Ribbens,W.B. / Univ.of Michigan,Dep.of Electrical Engineering and Computer Science,Vehicular Electronics Lab.,US | Automotive engineering | 1985


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