A Mathematical Model for a Hybrid Ignition System
Corressponding author's email:
amdq@hcmute.edu.vnDOI:
https://doi.org/10.54644/jte.79.2023.1420Keywords:
Hybrid ignition system, Self-induced electromotive force, Accumulated energy, Capacitive ignition, Induction ignitionAbstract
In the operation of a car's ignition system, the primary ignition coil is responsible for generating a high voltage that typically ranges from around 100V to 300V. However, this self-induced electromotive force (emf) can lead to certain negative effects such as switch breakdown, inductive noise, and secondary voltage drop. This article introduces a novel hybrid ignition system designed for a 4-cylinder engine. This innovative system is a combination of capacitive discharge ignition system (CDI) and induction discharge ignition (IDI) system. The excess electromagnetic force energy (emf) generated during the induction ignition stage will be used in the capacitive ignition. Thereby contributing to limiting the negative effects as mentioned.
Forming and solving the mathematical model for the hybrid ignition system mentioned above enables us to analyze the transient responses of the primary current (i1) and primary voltage (V1). These instantaneous responses are crucial in understanding the behavior of the composite ignition circuit and calculating key parameters such as ignition energy during the inductive and capacitive ignition stages, as well as the magnitude of the maximum secondary voltage (V2m). Furthermore, the article also presents experimental results from the hybrid ignition system to complement the theoretical analysis.
Downloads: 0
References
M. E. Gerry, "Inductive-capacitive cyclic charge-discharge ignition system," U.S. Patent 4288723, 1981.
M. J. French and M. J. Edwards, "Hybrid ignition circuit for an internal combustion engine," U.S. Patent 5806504, 1998.
J. M. Lepley, "Capacitive discharge ignition system with extended duration spark," U.S. Patent 6701904B2, 2004.
A. Simakaukas, "Hybrid Ignition system with variable spark duration for spark ignition engine," in The 8th International conference, 2013, p. 225.
M. E. Gerry, "Inductive-capacitive modulated ignition system," U.S. Patent 4291661, Aug. 13, 1979.
V. Heise, M. Loenarz, and F. Lorenz, "Ignition system," U.S. Patent 9.399.979 B2, Jul. 26, 2016.
M. Zheng, S. Yu, and J. Tjong, "High Energy Multipole Distribution Spark Ignition System," in Ignition Systems for Gasoline Engines-3rd International Conference, Berlin, Germany, Nov. 2016, p. 110.
D. V. Dung, Electric Motors and Motor Control, VNUHCM Publishing House (in Vietnamese), 2013, pp. 122-184.
Capacitor Leakage Measurements Using a Model 6517A Electrometer, Keithley Instruments Inc., Ohio, USA, 2001. [Online]. Available: http://www.tek.com/sites/tek.com/files/media/document/resources/Capacitor_Leakage_AN.pdf.
S. B. Liao, P. Dourmashkin, and J. Belcher, Inductance and Magnetic Energy, MIT 8.02 Course Notes, Chapter 11, pp. 6-11, 2011.
S. B. Liao, P. Dourmashkin, and J. Belcher, Inductance and Magnetic Energy, MIT 8.02 Course Notes, Chapter 5, pp. 13, 2011.
V. A. W. Hiller, Fundamentals of automotive electronics, 2nd ed., UK: Stanley Thornes Ltd, 1996, p. 196.
K. Reif, Gasoline engine management system and components, Springer Vieweg, 2015, p. 157.
D. V. Dung, D. Q. Am, and N. T. Ngoc, "Analysis of the Capacitive Ignition Process in a Hybrid Ignition System of Capacitive-Inductive Mixture," (in Vietnamese), Journal of Technical Education Science, no. 57, p. 65, 2020.
Downloads
Published
How to Cite
Issue
Section
Categories
License
Copyright (c) 2023 Journal of Technical Education Science
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright © JTE.
