승용디젤엔진 LP-EGR 고장진단 연구
A Study on the Failure Diagnosis of LP-EGR from the Diesel Engine of Passenger Car
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초록
HP-EGR which is used in the existing diesel engine is the method of circulating the emission gas burned at high pressure from the front end of turbine to the rear end of compressor, and LP-EGR which is applied to resolve the disadvantage of HP-EGR is adopted with the advantages of accomplishing relatively lower pressure and lower EGR gas temperature compared to HP-EGR system by recirculating the emission gas which does not have contaminants because of being passed through DPF. The objective of this study is to improve the existing maintenance method of simple sequential exchange of single part and present the way of enhancing the efficiency of maintenance through the method of analyzing the data with D-logger.
Abstract
HP-EGR which is used in the existing diesel engine is the method of circulating the emission gas burned at high pressure from the front end of turbine to the rear end of compressor, and LP-EGR which is applied to resolve the disadvantage of HP-EGR is adopted with the advantages of accomplishing relatively lower pressure and lower EGR gas temperature compared to HP-EGR system by recirculating the emission gas which does not have contaminants because of being passed through DPF. The objective of this study is to improve the existing maintenance method of simple sequential exchange of single part and present the way of enhancing the efficiency of maintenance through the method of analyzing the data with D-logger.
참고문헌 (8)
- Lim, G. H., "Comparison of Combustion Characteristics according to the Dilution Ratio in Diesel Engine equipped with LP EGR", Conference of The Korean Society of Mechanical Engineers, 2010(11), pp.3546~3551 (2010)
- Lee, J. I., "Experimental Study on the Emissionand Fuel Consumption Characteristics of Diesel Engine with HP-LPEGR Device", pp.2010
- Jeong, D. Y., "A study on the correction method for appling LP EGR in passenger Diesel Engine", 2010 KSAE Conference, pp.342~350 (2010)
- 이충훈, "ECU HILS를 이용한 실차 주행 조건에서의 인젝터 평가시스템", 한국생산제조학회지, 19(6), pp.812~818 (2010), 한국생산제조학회
- Ko, S. C., "Influence Evaluation on Generated Condensation Water of LP-EGR System", 2014 KSAE Conference, pp.170~175 (2014)
- Yu, C. H., "Development of the Vehicle Diagnosis Program using the OBD-Ⅱ", Transactions of Korea Society of Automotive Engineers, pp.271~278 (2015)
- 김성모, "LPI차량에서 CKPS불량으로 주행 중 간헐적인 엔진부조 현상의 고장진단", 한국생산제조학회지, 23(6), pp.624~629 (2014), 한국생산제조학회[DOI]