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승용 디젤엔진의 LPL EGR 적용에 따른 응축수 발생 특성
오광철(Kwangchul Oh),김덕진(Deokjin Kim),이천환(Chunhwan Lee),이춘범(Chunbeom Lee),김성근(Sungkeun Kim) 한국자동차공학회 2012 한국자동차공학회 지부 학술대회 논문집 Vol.2012 No.5-2
While the request of diesel engine is recently increased due to its excellent fuel economy, the emission regulation becomes reinforced. In the case of EURO-6 that is started from 2014 and required 60% NOx reduction compared with EURO-5, It could be satisfied by hybrid system consist of advanced EGR(Exhaust Gas Recirculation) and aftertreatment system (LNT or SCR). Advanced EGR system have been used LP-EGR (Low Pressure Loop EGR) and HP-EGR (High Pressure Loop EGR) simultaneously. In this paper, we investigated the generation of condensate in inter-cooler according to LPL EGR application in TCI diesel engine.
오미혜(Meehye Oh),윤여성(Yeoseong Yoon),오광철(Kwangchul Oh),김덕진(Deokjin Kim),최성규(Seongkyu Choi),이후상(Hoosang Lee),신재섭(Jaesup Shin) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This study is estimate the application of polycarbonate polymer glazing application for automotive. The polymer glazing made out of poly carbonate by compressed process. The manufacturing system is useful to the trend of automotive industry. The comfortable and safety test is very important matter for car application of polymer glazing. The one test is NVH test and the others is fatigue test. The NVH tests are noise and vibration test at accelerated mode and model road. Each test is make comparison between glass and polymer. The noise property is shown about 70~75㏈. So, there is no difference glass and polycarbonate. The vibration property compared with polymer, glass is batter about 50%. But there is insensitive, no difference between glass and polymer. And fatigue test is very superior in polycarbonate glazing. It is shown 80㎜ of displacement and the restoration is reach stage of perfection. We propose the test guideline about car application of polymer glazing.
메탈 DOC+cDPE의 강제재생 온도에 따른 열화 특성
고상철(SangChul Ko),오광철(KwangChul Oh),정재우(Jae-Woo Chung),김덕진(DeokJin Kim),염경민(Kyoungmin Yeom),서충길(Choong-Kil Seo) 한국자동차공학회 2013 한국자동차공학회 학술대회 및 전시회 Vol.2013 No.11
Diesel vehicles are considered as one of major sources of PM, recently In-use diesel vehicle and retrofit. One of the problems of the exhaust gas temperature some diesel vehicle and retrofit is too low to apply passive regeneration DPF systems. In this study it was carried out conversion efficiency test for fresh and aged catalyst on metal DOC with cDPF. Also it was evaluated the characteristics of CO, THC conversion according to aging conditions.
고상철(SangChul Ko),오광철(KwangChul Oh),서충길(Choong-Kil Seo),정재우(Jae-Woo Chung),김덕진(DeokJin Kim),이춘범(ChunBum Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Recently, reduction of CO and THC, as well as the DOC will be used for the regeneration of the DPF. DOC deactivated by repetitive regeneration and the deactivation progresses, depending on the conversion decrease of CO, THC and NO. The metal DOC In this study used washcoat on a metal mesh plate is raised. Deactivated rapidly up to 10 hours of hydrothermal deterioration after 25, 45 hours in the deactivation rate was reduced. Results of the TEM analysis, Pt particle size increased according to the increase of the temperature and time of hydrothermal aging, this reason is due to sintering, migration and agglomeration of Pt particles.
RE-EV용 고효율 가솔린 엔진발전시스템 성능 특성 연구
구본석(Bonseok Koo),오광철(Kwangchul Oh),원장혁(Janghyeok Won),서호철(Hocheol Suh),장성욱(Sungwook Jang),안호상(Hosang Ahn),이종덕(Jongdeok Lee) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
In this paper, we conducted a deep analysis of the output characteristic engine, fuel consumption, and exhaust emissions, to develop a high-efficiency engine to be mounted on the RE-EV. Additionally, Engine ECU mapping was performed for improvement of vibration and noise problem. For the evaluation of single engine, we went the durability evaluation of engine. As a result, it is planned to carry out the configuration of the optimized intake pipe in order to improve engine performance through the improvement of the intake and exhaust of the engine.