지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.10
- 수록면
- 611 - 615 (5page)
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초록· 키워드
오류제보하기
It was proven that variable valve timing used in the SI engines could have obvious benefits on high fuel economy, low exhaust emission, and good engine performance. Electromagnetic valve (EMV) offers very high flexibility in valve timing. With EMV system in an SI engine, the valve timing can then be adjusted adaptively according to any engine operating situations, and each cylinder can have different settings for valve timing. Since the EMV runs very fast, there are problems of vibration and noise due to the impact between valve and valve seat. To improve these problems this paper presents two control methods to perform soft-land control. One is a fuzzy logic controller to control the movement of EMV. The other one is a novel 3-stage voltage control method which aims to get optimal real-time control for EMV. Simulation results show the fuzzy logic controller provides lower impact velocity (0.4m/s), while the optimized 3-stage voltage controller offers simple control and acceptable performance.
목차
Abstract
1. INTRODUCTION
2. STRUCTURE AND DYNAMIC MODELS
3. DYNAMIC CONTROL FOR EMV
4. 3-STAGE VOLTAGE CONTROL
5. CONCLUSIONS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2014-569-000913201