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Modeling of Internal Combustion Engine Ignition Coil via MATLAB® Simulink® and Ansoft Maxwell® Software

[+] Author Affiliations
Robert S. Nordstrom, Subha K. Kumpaty

Milwaukee School of Engineering, Milwaukee, WI

Paper No. IMECE2011-63835, pp. 1631-1638; 8 pages
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy, Parts A and B
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5490-7
  • Copyright © 2011 by ASME


Electrical ignition (spark ignition) is the mechanism that ignites the air-fuel mixture provided by the induction system of an internal combustion engine. SAE J973 NOV1999 is a test method that was designed and established by the Society of Automotive Engineers (SAE). This specification provides a test sequence along with the equipment that ensures the proper test for a spark delivery device. To have a mathematical model of the ignition coil to function per this SAE specification would be beneficial to the design engineer. This paper will discuss the operation and simulation of an ignition coil using MATLAB® Simulink® and Ansoft Maxwell® finite element analysis software. The aforementioned numerical packages are used to evaluate a coil design and how it would correlate to the SAE J973 prescribed by the SAE Ignition Systems Standards Committee. The coil that is simulated is of inductive type ignition. The simulation results show that accuracy within 10% to 15% from tested values is obtainable with lumped parameter elements using this modeling technique.

Copyright © 2011 by ASME



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