Research on the Changing Regularity of Ionic Current and Cylinder Pressure when the Gasoline Engine Knocks

Abstract:

Theoretically speaking, we can achieve the detection and control of the parameters of engine knock and ms-PULSE etc effectively and accurately by analysis the ionic current signals. But in actual application, it is difficult to detect the ionic current signals because of the interference of high pressure from high-tension ignition system. At present, the application of ionic current signal in the detection and control of engine knock is still in the initial early stages. We optimized the signal acquisition system, interference the suppression, achieve the effective detection of ionic current signal in the tests we mentioned in the topic, and then, we analysis and compared the character of ionic current and cylinder pressure signals we collected under different working conditions, exploration and testing is carried out for the further recognition and control of engine knock using the ionic current signals.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 361-364
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.361
• Online since: October 2011
• Authors: Yue Guo Sun, Zhao Cheng Yuan, Li Ying Li, Shi Yu Li, Meng Liu
• Keywords: Gasoline Engine, Ionic Current Analysis, Knock Intensity

References

[1] Schmillen Karl P, Rechs Manfred. Differen Methods of Knock Detection and Knock Control. SAE Paper 910858.

DOI: 10.4271/910858

[2] Wu Xiaomin. Knock Detecting by Analysis of Ionic Current in a Engine. Transactions of CSICE[J], 1998, 16(4): 453~459 (In Chinese).

[3] Andre S, Raymond R, Thomas B. An ionization equilibrium analysis of the spark plug as an ionization sensor[R]. SAE Paper , 960337. Washington, USA: Society of Automotive engineers Inc, 1996. 452~457.

[4] Xing Jianguo, Xu cangsu, Sun Youxian. Spark Plug Gap Ion Current and Its Application in Engine Diagnosis And Control. Chinese Internal Combustion Engine Engineering[J], 2001, 22(3)70~73 (In Chinese).

[5] Yuichi Shimasaki, Hidetaka Maki, Junko Sakaguchi, Kazutoshi Nishizawa, Akira Kato and Hiroaki Suzuki，Noriaki Kondo，Tatsunori Yamada. Study on Combustion Monitoring System for Formula One Engines Using Ionic Current Measurement[R]. SAE Paper 2004-01-(1921).

DOI: 10.4271/2004-01-1921

[6] Jürgen Förster, Achim Günther, Markus Ketterer and Klaus-Jürgen Wald. Ion Current Sensing for Spark Ignition Engines[C] ∥. SAE. Paper 1999-01-0204.

DOI: 10.4271/1999-01-0204

[7] Yiqun Huang and Darius Mehta. Investigation of an In-cylinder Ion Sensing Assisted HCCI Control Strategy[C] ∥. SAE. Paper 2005-01-0068.

DOI: 10.4271/2005-01-0068