In vehicles equipped with knock sensors, it can be difficult to determine the octane number requirement according to the current Coordinating Research Council E-15 procedure which is based on detection of audible knock by trained raters. Therefore, a program was conducted to develop a new procedure which is more suitable for knock sensor equipped vehicles.Due to adaptive actions taken by the electronic knock control system, the acceleration performance of a knock sensor equipped vehicle can be affected by fuel octane number. For the majority of vehicles tested, the acceleration time increased as fuel octane number was decreased. A promising new method was developed to determine vehicle octane number requirement based on acceleration performance.


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    Title :

    An Acceleration Based Method to Determine the Octane Number Requirement of Knock Sensor Equipped Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Fall Fuels and Lubricants Meeting and Exposition ; 1998



    Publication date :

    1998-10-19




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    An acceleration based method to determine the octane number requirement of knock sensor equipped vehicles

    Whelan,D.E. / Schmidt,G.K. / Hischier,M.E. et al. | Automotive engineering | 1998


    Vehicle performance effect of octane on knock-sensor-equipped vehicles

    Coordinating Research Council, Octane Number Requirement Survey Group | TIBKAT | 1995


    Reduction of octane requirement by knock sensor spark retard system

    Kraus,B.Z. / Godici,P.E. / King,W.H. et al. | Automotive engineering | 1978



    Reduction of octane requirement by knock sensor spark retard system

    Kraus, B.J. / Godici, P.E. / King, W.H. | Tema Archive | 1978