Browse Publications Technical Papers 2016-01-1011
2016-04-05

Parametric Analysis of Ignition Circuit Components on Spark Discharge Characteristics 2016-01-1011

The development of the present day spark ignition (SI) engines has imposed higher demands for on-board ignition systems. Proper design of the ignition system circuit is required to achieve certain spark performances. In this paper, the authors studied the relationship between spark discharge characteristics and different inductive spark ignition circuit parameters with the help of a simplified circuit model. The circuit model catches the principle behavior of the spark discharge process. Simulation results obtained from the model were compared with experimental data for model verification. Different circuit model parameters were then tuned to study the effect of those on spark discharge current and spark energy properties. The parameters studied include the ignition coil coupling coefficient, ignition coil primary and secondary inductances, secondary circuit series resistance and spark plug gap width.

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