本論文根據財團法人工業技術研究院(ITRI)研發電子機械閥門(EMV)建構均質進氣壓燃(HCCI)的單缸引擎模型
,以利研究電子機械閥門(EMV)對於均質進氣壓燃引擎的操作範圍的拓展效益及控制方法得實現。
而模型將使用 MATLAB SIMULINK 建立曲軸精度的模型,模型中的動態方程式是由理想氣體氣體方程式、質量與能量守恆所得到。
模型中包含汽門揚程、汽缸容積變化率、質量與氣體流率、進氣管與排氣管方程式、排氣岐管方程式、汽缸方程式、燃燒模型與熱傳導模型。
而電子機械閥門可獨立控制進排氣閥門開啟與關閉時間點,能使進排氣行程達到最佳化。
開迴路模擬結果可得知當燃油或閥門改變時重要性能參數的變化, 例如: 輸出功(IMEP)、開始燃燒時間點(SOC)、空燃比(AFR)和在汽缸內的壓力、
已燃燒產物的比例、溫度與質量的變化等。
控制器方面加入一個PI控制器與前饋控制器主要目的是為了控制燃油燃燒50%(CA50)的時間點,因為燃燒時間點一直是均質進氣壓燃引擎中最核心的部份，
而本文是希望將燃油燃燒50%(CA50)的時間點在5度(ATDC)左右,達到引擎最大燃燒效益。

This paper is written by using the model, which is a single cylinder homogenous charge compression ignition engine (HCCI) and equips the electronic mechanical valve (EMV) which was developing by Industrial Technology Research Institute (ITRI).
For the purpose of doing research in electronic mechanical valve (EMV), we can realize the operation range and can extend the benefits of control method.
I established the model by using MATLAB SIMULINK, and furthermore the dynamic equations were derived from ideal gas law,
conservation of mass, and conservation of energy. There are eight subsystems in this model, which are lift of the port,
the rate of change in cylinder volume, flow rate of mass and gas, the equations of intake and exhaust manifold, equations of cylinder,
model of combustion, and heat-transfer model. Because EMV enables to control the timing of the intake and the exhaust valve,
it can optimize the intake and the exhaust stroke. According to the open-loop simulation result,
I found out when changing the fuel and the valve also changing the important parameters, such as indicate mean effective pressure (IMEP),
start of combustion timing (SOC), air fuel ratio, the in-cylinder pressure, burned gas fraction, change of the temperature and the mass, etc.
As the controller, which include a PI controller and a feedforward controller,
we can use it to control the timing of $50\%$ fuel burned (CA50), which we can consider it as the most important index in HCCI engine. Last but not least,
for getting the best HCCI engine performance in this thesis,I would like to control CA50 at around after the top dead center (ATDC).

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