엔진오일 유전상수 변화량 측정에 의한 엔진오일 품질 모니터링 시스템 개발
Development of an Engine Oil Quality Monitoring System
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참고문헌
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초록
The purpose of this study is to develop an engine oil quality monitoring system to warn the abnormal condition of engine oil. To do this, first of all, it is needed a personal controller development to measure the capacitance of a pre-developed engine oil deterioration detection sensor integrated with an oil filter. To measure the capacitance of engine oil in the sensor, it is used the way measuring the electric charging time in a capacitor by impressing DC volt. This method has merits on cost and signal stability. The measured capacitance is compensated by comparing with the one measured by an impedance analyzer. Also, using the dielectric constant gained by an impedance analyzer, the calculating equation of the dielectric constant of engine oil related with the currently developed sensor is decided. Then, the deterioration degree of engine oil is estimated according to the change rate of dielectric constant between green oil and used oil. Finally, using this dielectric constant information together with engine oil temperature and pressure, the currently developed engine oil quality monitoring system is to tell the abnormal state of engine oil.
Abstract
The purpose of this study is to develop an engine oil quality monitoring system to warn the abnormal condition of engine oil. To do this, first of all, it is needed a personal controller development to measure the capacitance of a pre-developed engine oil deterioration detection sensor integrated with an oil filter. To measure the capacitance of engine oil in the sensor, it is used the way measuring the electric charging time in a capacitor by impressing DC volt. This method has merits on cost and signal stability. The measured capacitance is compensated by comparing with the one measured by an impedance analyzer. Also, using the dielectric constant gained by an impedance analyzer, the calculating equation of the dielectric constant of engine oil related with the currently developed sensor is decided. Then, the deterioration degree of engine oil is estimated according to the change rate of dielectric constant between green oil and used oil. Finally, using this dielectric constant information together with engine oil temperature and pressure, the currently developed engine oil quality monitoring system is to tell the abnormal state of engine oil.
참고문헌 (11)
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- S. M. Chun, "Study on Mutual Relation between the level of Deterioration Influenced by the Changes of Chemical and Physical Properties and the Change of Dielectric Constant for Engine Oil - Gasoline Engine Oil", The Korean Society of Tribologists & Lubrication Engineers, 22(5), pp.260~268 (2006)
- S. M. Chun, "Study on Mutual Relation between the level of Deterioration Influenced by the Changes of Chemical and Physical Properties and the Change of Dielectric Constant for Engine Oil – Diesel Engine Oil", The Korean Society of Tribologists & Lubrication Engineers, 22(5), pp.290~300 (2006)
- 전상명, "디젤 미연소 검댕(Soot)이 디젤엔진오일의 유전상수변화에 미치는 영향 연구", 한국윤활학회지, 26(2), pp.111~121 (2010), 한국윤활학회
- 전상명, "오일필터 일체형 엔진오일퇴화감지센서 시작품 개발 I", 한국윤활학회지, 24(2), pp.82~89 (2008), 한국윤활학회
- 전상명, "오일필터 일체형 엔진오일퇴화감지센서 시작품 개발(2)", 한국윤활학회지, 24(4), pp.170~178 (2008), 한국윤활학회
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- Oil Filter Device for Measuring Quality of Engine Oil and Method Therefor, "S. M. Chun", The Korean Intellectual Property Office, ~, pp.Patent Number 10-0863689 (2008)
- An Apparatus for Monitoring the Quality of Engine Oil, "S. M. Chun", The Korean Intellectual Property Office, ~, pp.Patent Application Number 10-2011-0033130 (2011)