Investigation on The effect of Airgap Distance for Ignition Coils Using Finite Element Methods
2016
Ugur Demir | Mustafa Caner Akuner
Abstract – This study is related to the ignition coil which produces spark energy to ignite fuel mixture in cylinder of internal combustion motor. There are some problems that is commonly seen in automotive ignition coil. These problems lead to break down the spark plug by producing of low energy or high energy output. The mentioned output energy has 3 conditions which are low energy output, high energy output and optimal energy output. High voltage output leads to dry to airgap of spark plug. On the other hand, low voltage output leads to wet to airgap of spark plug. The purpose of this study is investigation on the ignition coil to be able to produce the best output which is optimal energy. To achive optimal energy output, an ignition coil model was designed in Ansys Maxwell environment. An ignition coil contains basically primary winding, secondary winding, core and resin for insulating. Optimal energy output is targeted by changing the airgap distance on the core of ignition coil. An experiment table was created to provide the optimization for output energy of ignition coil. This experiment table consists of different airgap distances of core on ignition coil. All combinations in the experiment table was simulated on the model of ignition coil by using finite element analysis. Finally, all simulation results from experiment table were evaluated aspect of relationship between airgap distance for core of ignition coil and output energy of ignition coil.
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