| 제목 |
1.4 L CNG 엔진에서 아이들 제어 및 전기 히터 적용이 촉매 활성화에 미치는 영향 |
| 분야 |
연료 및 배기 |
| 언어 |
Korean |
| 저자 |
이상현(계명대학교), 이민광(컨트롤웍스), 한만배(계명대학교) |
| Key Words |
Compressed natural gas(압축천연가스), Catalyst light-off(촉매 활성화), Conversion efficiency(정화효율), Exhaust gas temperature(배기가스온도), Electric heater(전기히터) |
| 초록 |
The application of compressed natural gas(CNG) to passenger cars has drawn attention as a type of fuel that can cope with globally strengthened emission regulations due to its low CO2 emission potential. This study investigates a 1.4 L CNG engine, in which idle speed control and an electric heater can affect the increase in the exhaust gas temperature, thus improving catalyst light-off characteristics. Idle speed control parameters, the idle target speed, fuel injection timing, and ignition timing were selected because their effects on the exhaust gas temperature and exhaust emissions could be significant. Moreover, an electric heater was installed in front of the MCC catalyst for the rapid catalyst light-off, thus increasing exhaust gas temperature, which was evaluated at the low phase of the WLTP test cycle. |
| 원문(PDF) |
다운로드
Journal Site
|
