The new trends in spark ignited engine technologies (direct injection, lean operation, cooled EGR, flexible valve-trains, heavy pressure-charging, flexible fuel capability, CNG...) have increased the diversity of ignition needs for optimum combustion. Understanding the sensitivities of an engine's combustion system to ignition parameters is one key to finding and defining the best compromise of engine performances and ignition equipment costs. Achieving a definition of this compromise requires a considerable time against the backdrop of contemporary technologies, and the need for a truly adjustable ignition too! has been long identified. Working in the field of ignition since its creation in 1999, APOJEE developed Smart- Coil, an ignition coil emulator capable of generating any desired ignition characteristics. Extensively used within the automotive and racing fields, this first product was constantly improved to meet the evolving customer engine requirements. Ever increasing demands for higher spark energy, longer spark duration and higher available voltage have recently exceeded the design limits of this first SmartCoil, requiring the development of a higher performance product. SmartCoil 2 is an updated product capable of delivering up to 50kV with up to 1A peak spark current and U of spark energy, all with user defined current profiling and high reliability. This new equipment features a ten-fold increase in speed of current regulation, together with high resolution voltage and current measurements, and an 'on-the-fly' spark polarity capability. The emulation of all state of art ignition coils is assured, as well as a new possibility to investigate the impact of alternating current discharges. The capabilities of SmartCoil 2 facilitate rapid ignition research and the definition of all associated ignition componentry, quickly, safely, economically, and most importantly in a precise and scientific manner.


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    Title :

    Rapid Spark-Ignition Parameter Optimization for Best Combustion Characteristics




    Publication date :

    2013


    Size :

    31 Seiten, Bilder, Tabellen, 8 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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