An AMESim model of the injection system has been developed introducing an automatic conversion of an experimental current signal into the force generated by the solenoid. The simulator realizes five multiple injections with different pauses. Using a dedicated current input, with faster rising and falling times, it was possible to realize smaller dwells between injections, optimizing the Bosch Common-Rail (C-R) system timing, without any mechanical modification. Using a commercial injector and an appropriate injection current trend, all the simulation results have been confirmed experimentally. Photographic sequences of a five holes mini-sac nozzle making five consecutive injections at 400, 800 and 1200 bar respectively were taken at ambient pressure and temperature. They showed that both spray penetration and cone angle at all operative conditions are very uniform and stable. Good agreement between experiments and simulations of needle lift has been obtained.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Modelling and control of a common-rail system for diesel multiple injections


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2001 Internal Combustion Engines ; 2001



    Publication date :

    2001-09-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Theoretical and Experimental Analysis of Diesel Sprays behavior from Multiple Injections Common Rail System

    Giuffrida, A. / Corcione, G. E. / Lanzafame, R. et al. | SAE Technical Papers | 2002


    Theoretical and experimental analysis of diesel sprays behavior from multiple injections common rail system

    Brusca,S. / Giuffrida,A. / Lanzafame,R. et al. | Automotive engineering | 2002


    Effects of Multiple Injections in a HSDI Diesel Engine Equipped with Common Rail Injection System

    Park, C. / Kook, S. / Bae, C. et al. | British Library Conference Proceedings | 2004


    Effects of Multiple Injections in a HSDI Diesel Engine Equipped with Common Rail Injection System

    Park, Cheolwoong / Bae, Choongsik / Kook, Sanghoon | SAE Technical Papers | 2004


    Effects of multiple injections on a HSDI diesel engine equipped with common rail injection system

    Park,C. / Kook,S. / Bae,C. et al. | Automotive engineering | 2004