| 제목 |
PC-ECU를 이용한 SI 기관의 비정상상태 정밀공연비 제어 |
| 분야 |
가솔린엔진 |
| 언어 |
Korean |
| 저자 |
정용윤(동아대학교), 하종률(동아대학교), 이종순(동아대학교), 이종숭(동아대학교) |
| Key Words |
ECU(전자제어장치), PC-Based ECU(컴퓨터 전자제어장치), Signal Process Unit(신호처리장치), AFR(공연비), CPU(Centrol Processing Unit), stoichiometry(이론공연비), Transient Condition(비정상상태) |
| 초록 |
In a SI engine, three-way catalyst converter has the best efficiency when A/F ratio is near the stoichiometry. The feedback control using oxygen sensors in the commercial engine has limits caused by the system delays. So it is necessary to control fuel quantity in accordance with intake air amount in order to reduce exhaust emission and improve the specific fuel consumption. Precise A/F ratio control requires measurement of air amount with respect to the cylinder and injection fuel according to the air amount. |
| 원문(PDF) |
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