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자료유형
학술대회자료
저자정보
저널정보
한국자동차공학회 한국자동차공학회 춘 추계 학술대회 논문집 한국자동차공학회 2006년 춘계학술대회 논문집 Vol. I
발행연도
2006.6
수록면
130 - 137 (8page)

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For Homogeneous Charge Compression Ignition (HCCI) engine, which is a desirable compromise between spark ignition (SI) engine and compression ignition (CI) engine, controlling the initiation of combustion remains as a challenge for practical applications. Unlike Sl engines in which a spark plug is used and CI engines in which a fuel injector is used, HCCI engine has no direct method to control the initiation of combustion. Therefore, indirect ways have been suggested. One of the most promising indirect methods to control the combustion timing is to adopt the technology of variable valve timing (VVT). The VVT can not only solve the control problem in HCCI engine, but also achieve a significant improvement in fuel economy and lower emissions. In order to replace the conventional double solenoid type actuator which has low efficiency and difficulty in initial movement, a newly developed liner actuator with permanent magnets was introduced. The designed electromagnetic VVT mechanism shows a fast transition time between valve events and it is found to be suitable for the practical usage in HCCI combustion control. The validity of using this quick-response electromagnetic valve for the HCCI control is examined through the simulation with a well mixed reactor (WMR). The parametric study with a WMR associated with the proposed electromagnetic valve VVT system, shows potential for practical application to the control of HCCI combustion.

목차

Abstract
1. INTRODUCTION
2. MAGNETIC VALVE DESIGN
3. WMR FOR HCCI MODELING
4. PERFORMANCE OF THE VVT SYSTEM
5. WMR RESULTS AND DISCUSSION
6. CONCLUSIONS
References

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