新型電子氣閥之設計與動態模擬分析

Design of New Electromagnetic Valve System and Analysis of Valve Dynamics

鄒谷孝(Ku-Hsiao Tsou)

指導教授 ： 蕭耀榮

國立臺北科技大學/機電學院/車輛工程系所/碩士(2009年)

摘要

傳統電子氣閥(electromagnetic valve)設計採取雙E型線圈組的設計，其氣門作動是靠線圈通電產生磁力吸引，推動氣閥開啟或關閉，若要將氣閥開啟或關閉，需將線圈通電，會消耗相當大的能量。故新型電子氣閥利用永久磁鐵設計，取代雙E型線圈組，可以有效的改善大量能量消耗問題。
本研究主要分為三個部份，第一部份為建立新型電子氣閥模型，包括磁路子系統、電子子系統、機械子系統。第二部份為新型電子氣閥動態及模擬分析，及汽缸內部氣體阻力與系統內部阻尼係數值的影響，並對新型電子氣閥系統失效進行分析。第三部分為針對新型電子氣閥設計進行改良，針對磁路走向、線圈設置、電樞結構設計等三方面，以增加對電樞作用力範圍，提高系統穩定。

關鍵字

電子氣閥 ； 氣閥動態 ； 可變氣門正時

並列摘要

Conventional electromagnetic valves usually adopt double E-coil design. Valve action is actuated by the magnetic force from the coils in order to drive valve open or close. By this way it consumes large energy to keep valve at open or closed position. Therefore, the double E-coil design is replaced by permanent magnet in new electromagnetic valve to improve energy consumption effectively.
This study is divided into three parts. The first part is to build new mathematic dynamic models for electromagnetic valve. These dynamic models include magnetic circuit subsystem, electronic subsystem and mechanical subsystem. The second part is to simulate and analyze the dynamic behaviors of the new electromagnetic valve. The impacts of cylinder gas force and damping coefficient are also discussed. Besides, there is also a failure analysis for the new electromagnetic valve system. The third part focuses on the improvement of the new electromagnetic valve, especially in the magnetic field, coil setup and armature structure. The improvement will increase the range of the attracting force for armature, and improve the system stability.

並列關鍵字

electromagnetic valve ； valve dynamics ； variable valve timing

參考文獻

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