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研究生:廖文傑
論文名稱:非線性滑動模式控制於汽油引擎怠速控制之研究
論文名稱(外文):nonlinear sliding mode control for the idle speed control of automotive
指導教授:盧昭暉盧昭暉引用關係
學位類別:碩士
校院名稱:國立中興大學
系所名稱:機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:102
中文關鍵詞:滑動模式怠速控制汽油引擎動態模式控制器設計
外文關鍵詞:sliding modeidle speed controlnonlinear
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本論文主旨乃在建立汽油引擎在怠速狀態的轉速控制技術,控制方式是以個人電腦為主,並整合單晶片作為引擎轉速訊號擷取的元件,利用個人電腦的串列埠及並列埠作為輸入與輸出的介面,並經由實際於引擎測試,建立控制的機制。
擎轉速控制中,為維持引擎轉速的穩定性及符合預期轉速,本文使用滑動模式技術(sliding mode control techniques)作為控制器設計程序,在發展過程中假設只有引擎轉速與進氣歧管壓力是控制的唯一可用變數,並假設外部負載扭矩對引擎產生的干擾是未知的。
模式控制設計中包含兩個階段,首先,選擇滑動方向表面,再選擇滑動達成狀態,要完成控制工作,則所選擇的滑動方向表面必須使其趨近於零,滑動達成狀態則是可確保此滑動方向模式是可達成的。
制系統時,為求達到期望的動態作為與受外在干擾的影響是穩健的,建立兩個引擎動態方程式,藉由不同外部負荷、轉速量測之數據,分析引擎怠速控制動態響應特性,瞭解各計算控制模式及參數對引擎轉速之影響。並修正控制系統動態模式及相關匹配控制策略,以產生較佳引擎穩定性能,同時協助工程師改善設計、縮短研發試誤及時辰。

This study is proposed to establish technology and methodology
for idle speed control in gasoline internal combustion engine . The control method was used personal computer and through series port to combine microchip 8051 to pick engine revolution speed. After data was processed by computer ,the control could achieve by parallel port to adjust engine revolution speed. Applyed above control method in the practical engine test and constructed an analysis mode.
A controller design procedure base on sliding model techniques is presented for speed control in an automotive engine. It is assumed that only the engine speed and manifold pressure measurements are available to the control law. It is assumed that the load torque disturbance on the engine is not known. It is shown that the sliding mode controller can achieve the full range of set point speeds.
The sliding mode control methods are developed to design systems which have the desired dynamic behavior and are robust with respect to perturbations.In sliding mode control the design consists of two steps. Firstly, choice of the sliding surface (s) and secondly the selection of a reachability condition to design the control.
With different external load and measure engine revolution speed.
That We can analysis engine dynamics and the influence of control mode and parameter. According this performance engineer can evaluate the variation in engine dynamic performance and control strategy. to ensure engine stability. At the same time help engineers improve design and shorten test time.

第一章 緒論 1
1-1 前言 1
1-2 研究動機 3
1-3 文獻回顧 4
1-3-1 動力裝置控制的發展 4
1-3-2 滑動方向模式火花點火引擎怠速控制 5
1-4 研究目的6
第二章汽油引擎動態模式建立8
2-1汽油引擎動態模式理論8
2-1-1 節氣門動態模式的建立8
2-1-2 進氣歧管動態模式之建立9
2-1-3 引擎的泵氣13
2-1-4 進氣- 動力行程延遲14
2-1-5 引擎輸出扭矩及轉速動態方程式 14
2-2 汽油引擎動態模式實驗18
2-3 本研究之汽油引擎動態模式22
第三章 控制器設計29
3-1 控制器設計原理29
3-2 滑動方向控制模式架構30
3-2-1 滑動方向控制模式控制器設計31
3-2-2 控制法則34
3-3 實驗設備36
3-3-1 實驗引擎36
3-3-2 怠速控制馬達簡介38
3-3-3 怠速控制閥的功能40
3-3-4 Nissan 汽車診測儀器42
3-3-5引擎動力計44
3-3-6 個人電腦PC與通訊埠45
3-3-7 8051單晶片與串並列傳輸裝置47
3-3-8 引擎曲軸位置/轉速感知器50
3-3-9 進氣歧管壓力感知器53
第四章實驗方法與程序54
4-1 實驗方法54
4-1-1 Visual basic 程式開發流程55
4-1-2 引擎轉速量測58
4-1-3 進汽歧管壓力量測60
4-1-4 實驗過程61
4-2實驗程序65
4-2-1 實驗量測條件66
4-2-3 照明系統作用時67
4-2-4 空調系統與照明系統同時作用時68
第五章 結果與討論69
5-1實驗結果70
5-1-1 控制參數調校70
5-1-2 實際引擎操作75
5-2 討論83
第六章 結論85
6-1 結論85
6-2 未來研究方向86
參考文獻88

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