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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Unique Variable Reluctance System for Improved Noise Immunity


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2012 Small Engine Technology Conference & Exhibition ; 2012



    Publication date :

    2012-10-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Aftermarket Variable Reluctance Sensors

    Van Fleet, V. / SAE | British Library Conference Proceedings | 1994


    Variable reluctance electrical machines

    Henneberger, Gerhard / Viorel, Joan Adrian | TIBKAT | 2001


    Distributed Variable Reluctance Sensors

    Pawlak, A. M. / SAE | British Library Conference Proceedings | 1999


    Novel Variable Reluctance Sensors

    Pawlak, Andrzej M. / Adams, Joseph M. / Shirai, Takeshi | SAE Technical Papers | 1991


    Novel variable reluctance sensors

    Pawlak, A.M. / Adams, J.M. / Shirai, T. | Tema Archive | 1991