딥스틱게이지형 소형 엔진오일열화감지센서의 시험결과 분석
Analysis of Test Results for Small Dipstick-Gage-Type Engine-Oil-Deterioration-Detection Sensor
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초록
This paper presents the test results of small dipstick-gage-type engine-oil-deterioration-detection sensor. The measured sensor signal characteristics for the capacitance and temperature are analyzed. The engine oildeterioration condition correlates with the electrical property of the dielectric constant that comprised with physicalproperties such as TAN (Total Acid Number), TBN (Total Base Number) and viscosity. Several problemsencontered during the test of the sensor system are improved. The results of vehicle tests show that the capacitancesignal is stable after the engine stops. Therefore, the sensor should start measuring the parameters for monitoringthe engine oil condition after the engine stops. The engine is considered to be in a stopped state if thedifference between the maximum and minimum values of the oil capacitance measured every 1 min is below 0.02pF. The key test results in this paper will help in the development of an engine oil change warning algorithm.
Abstract
This paper presents the test results of small dipstick-gage-type engine-oil-deterioration-detection sensor. The measured sensor signal characteristics for the capacitance and temperature are analyzed. The engine oildeterioration condition correlates with the electrical property of the dielectric constant that comprised with physicalproperties such as TAN (Total Acid Number), TBN (Total Base Number) and viscosity. Several problemsencontered during the test of the sensor system are improved. The results of vehicle tests show that the capacitancesignal is stable after the engine stops. Therefore, the sensor should start measuring the parameters for monitoringthe engine oil condition after the engine stops. The engine is considered to be in a stopped state if thedifference between the maximum and minimum values of the oil capacitance measured every 1 min is below 0.02pF. The key test results in this paper will help in the development of an engine oil change warning algorithm.
참고문헌 (11)
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