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가솔린 극초저배출 차량의 후처리 시스템 Burning-out과 Canister Purge-Loading조건에 따른 시험적 배출가스 영향성 연구
홍종열(Jongyeol Hong),김석철(Sukchul Kim),이정근(Jungkeun Rhee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The effects of exhaust emission for Gasoline SULEV has been regulated in the world wide regulations such as Korea and U.S.A market under FTP 75 mode is very important to develop SULEV emissions because of SULEV emission standards are about 81% lower than ULEV. SULEV variability of emission results can be given an effect to develop and certify vehicle. it could be caused by test measurements that are focused on the ambient air and Sample Bags purifies and vehicle preparations This paper shows that test vehicle preparations and test equipment effects like vehicle after treatment poisoning, Canister loading/purge condition and using clean bag effect with SULEV gasoline vehicles,.
소형 차량의 Euro-5 FCC LOT(t) 특성 해석
김영웅(Youngwoong Kim),홍종열(Jongyeol Hong),용승열(Seungryoul Yong) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
Time-resolved calculation during the cold start period FCC and BCC has been tried for the Euro 5 small vehicle equipped with 1.6 liter BCC in view of HC emission and energy. Light off time (LOt) calculation of NEDC which is slower in cold start driving was implemented. As usual tool of AU53 in this first cycle was differentiated four kinds of regions: 1) key-on and 11 sec idle, 2) short acceleration which BBC`s power is demanded and start of catalyst warm-up, 3) steady and declined speed which catalyst warmed-up, 4) re-idle which LOt of FCC is obtained. Test for temperature measurement was also handled on the two different loadings of FCC. No concrete differentiation resulted in. Calculation of FCC bed temperature can actually be headed up according to the simplified region area done previous FTP vehicle. AU53 measure applied to the Euro-5 vehicle with low speed has indicated a good correlation with measured data. Of particular importance was the suitability of current FCC specification as loading modulation is applied in calculation. Consequently by combined major variables comprising of FCC we could forecast LOt values by adjustment of major variables like A/F and RPM of vehicle, heat capacity of FCC. The result of analogous SUV vehicle resembling weight and BCC size previously implemented was employed in comparison.