| 제목 |
흡기포트 분사방식의 가솔린 엔진에서 급가속시 연료 거동에 관한 연구 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
황승환(국민대학교), 이종화(아주대학교), 조용석(국민대학교) |
| Key Words |
Fuel transport(연료거동), Transient condition(과도상태), Wall wetting fuel model(벽류연료모델), Air/fuel ratio control(공연비 제어) |
| 초록 |
In this paper, the fuel transport characteristics during transient condition was studied by using a Fast Response Flame Ionization Detector(FRFID). The quantitative measurement method far the inducted fuel mass into cylinder is studied. The inducted fuel mass into the cylinder was estimated by using calculated air-fuel ratio by hydrocarbon concentration of cylinder and air flow model. In order to estimate the transportation of injected fuel from the intake port into cylinder, the wall wetting fuel model was used. The two coefficient( ??,??) of the wall-wetting fuel model was determined from the measured fuel mass that was inducted into the cylinder at the first cycle after iljection cut-off. {{br}}To reduce an air/fuel ratio fluctuation during rapid throttle opening, the appropriate fuel injection rate was obtain from the wall wetting model with empirical coefficients. Result of air/fuel ratio control, air/fuel excursion was reduced. |
| 원문(PDF) |
다운로드
|
