Spark ignition systems with the capability of providing spark event with either higher current level or longer discharge duration has been developed in recent years to help IC engines towards clean combustion with higher efficiency under lean/diluted intake charge. In this research, a boosted current spark strategy was proposed to investigate the effect of spark discharge current level and discharge duration on the combustion process. Firstly, the discharge characteristics of a boosted current spark system were tested with a traditional spark plug under crossflow conditions, and results showed that the spark channel was more stable, and was stretched much longer when the discharge current was boosted. Then the boosted current strategy was used in a spark ignition engine operating under lean conditions. Boosted current was added to the spark channel with different timing, duration, and current levels. Results showed that the boosted current had the ability to shorten the ignition delay and control the combustion phasing. The improvement of combustion stability brought by the constant current was more significant under certain piston positions during the compression stroke.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Boosted Current Spark Strategy for Lean Burn Spark Ignition Engines


    Additional title:

    Sae Technical Papers


    Contributors:
    Ting, David (author) / Li, Liguang (author) / Zheng, Ming (author) / Yu, Shui (author) / Yu, Xiao (author) / huo, Xuemin (author) / Yang, Zhenyi (author)

    Conference:

    WCX World Congress Experience ; 2018



    Publication date :

    2018-04-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A Study of Knock in Lean-Burn Spark-Ignition Engines

    Radwan, M. S. | SAE Technical Papers | 1992


    A study of knock in lean-burn spark-ignition engines

    Radwan,M.S. / Univ.of Heluan,EG | Automotive engineering | 1992


    An approach to mixture stratification in lean-burn spark-ignition engines

    Hull,D. / Whitelaw,J.H. / Xu,H.M. et al. | Automotive engineering | 1995


    An Approach to Mixture Stratification in Lean-Burn Spark-Ignition Engines

    Hull, D. / Whitelaw, J. H. / Xu, H. M. et al. | British Library Conference Proceedings | 1995


    An Approach to Charge Stratification in Lean-Burn, Spark- Ignition Engines

    Arcoumanis, C. / Hull, D. R. / Whitelaw, J. H. | SAE Technical Papers | 1994