This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Study on Electrostatic Induction Current for Noise Suppression
Annotation ability available
Sector:
Language:
English
Abstract
Radio noise generated by the ignition system of internal combustion engines is primarily caused by the capacitive discharge current flowing in the ignition circuit when the spark occurs at spark gap. It is known that suppression of the capacitive discharge current usually effective in reducing the radiated ignition noise level. [1]*
However, with exposed engines such as outboard marine, motorcycles, and particularly, in devices with long metal bodies, the radiated level peaks at a frequency which is determined by the length of the metal body.
The authors found that the phenomenon described above could be explained by assuming electrostatic induction current. This was based on the noise voltage from the ignition system to the device. This paper intends to report the findings of this research.
Authors
Citation
Yoshida, M., Suzuki, T., and Nishio, K., "A Study on Electrostatic Induction Current for Noise Suppression," SAE Technical Paper 891755, 1989, https://doi.org/10.4271/891755.Also In
References
- Nishio K. Suzuki T. Sugino K. “Study on Spark Discharge Current for Noise Suppression” JSAE Review July 1981
- Nishio K. Yoshida M. “SUPPRESSION METHODS OF RADIO FREQUENCY INTERFERENCE FOR MOTORCYCLES” IMechE Conference C143 78 1978
- Yoshida M. Nishio K. Yokota K. “Study on Electrostatic Induction from Ignition System” JSAE Review July 1983
- STANFORD RESEARCH INSTITUTE “IMPROVED SUPPRESSION OF RADIATION FROM AUTOMOBILES USED BY THE GENERAL PUBLIC” PB-239 471 January 1975
- Eaglesfield C. “CAR IGNITION RADIATION” WIRELESS ENGINEER January 1951
- Amemiya Y. Fujiwara O. IEEJ Trans 345 352 98-C 1978
- Nishio K. Internal Combustion Engine Magazine 12 142 31 1973
- SAE J551 Standard “PERFORMANCE LEVELS AND METHODS OF MEASUREMENT OF ELECTROMAGNETIC RADIATION FROM VEHICLES AND DEVICES (20-1000MHz)” SAE Handbook
- Burgett R. Massoll R. Van Uum D. “Relationship Between Spark Plugs and Engine-Radiated Electromagnetic Interference” SAE paper 740111 1974