Accurate knowledge of crank angle is essential to the correct operation of both ignition and fuel injection systems, yet the interface is one of the most problematic in a fuel injection system. The problems are well known to car manufacturers, but for many small engine manufacturers they are yet to be encountered. This paper describes a semiconductor circuit solution as integrated into the MC33813 and MC33814 Application Specific ICs for small engines. A circuit has been developed that uses the mathematical properties of VR sensor signals to create a robust interface that makes the fewest possible mistakes in the counting of crank position teeth. Validation pictures show a high level of noise immunity thus demonstrating suitability for the variation present in high volume manufacturing.


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    Titel :

    Unique Variable Reluctance System for Improved Noise Immunity


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    2012 Small Engine Technology Conference & Exhibition ; 2012



    Erscheinungsdatum :

    23.10.2012




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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