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The Misfire Detection and Intensity Interpretation Using Breakdown Voltage Characteristics
Technical Paper
1999-01-2934
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Engine misfire (total or partial) causes a negative effect on the engine power and the exhaust emissions such as HC, CO and NOx. Moreover, it causes damage to the three-way-catalyst(TWC) system permanently. So, Engine misfire should be detected and eliminated.
This study introduces a new system concept which is detecting combustion misfire using breakdown voltage (BDV) characteristics between electrodes. The focus of this study is that the detection and decision of misfire criterion through the misfire intensity calculation with BDV signal, which is derived by the application of a high bias voltage (30kV) to the spark-plug gap in the engine continuously. This study is driven to check the relation among BDV signal and misfire intensity inside an engine cylinder.
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Park, J., Martychenko, A., Ko, Y., Jo, M. et al., "The Misfire Detection and Intensity Interpretation Using Breakdown Voltage Characteristics," SAE Technical Paper 1999-01-2934, 1999, https://doi.org/10.4271/1999-01-2934.Also In
References
- Revised On-Board Diagnostics II (OBDII) Requirement April 8 1991
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- Raizer Yuri P. “Gas Discharge Physics” Springer-Verlag 1991
- Meek Jm Craggs JD Electrical Breakdown in Gases Wiley and Sons 1978
- Martychenko A.A. Park J.K. Ko Y.S. Balin A.A. Hwang J.W. Chae J.O. “A Study on the Possibility of Estimation of In-Cylinder Pressure by Means of Measurement of spark Gap Breakdown Voltage” SAE paper 1999-01-1115