臺灣博碩士論文加值系統

本文主要探討主動調變防滾系統，藉由重心位置的調變，提高車輛之翻轉臨界門檻值，降低車輛因撞擊力所造成的翻覆機率，以增進車輛之安全性。
本文首先推導車輛運動方程式建立數學模型，再運用MATLAB作車輛動態的分析與模擬，並以模糊理論控制主動調變防滾系統之運作，經比較車輛具備與未具備模糊控制主動調變防滾系統在不同情狀下的特性，結果顯示本文機構能有效減少車輛遭受撞擊時的側傾角度ヽ側傾角速度等，使得車輛於最低時間內達到平衡，有效提升車輛抗翻轉的能力。

This study is about an active anti-roll system. By virtue of adjusting the gravity center, it can increase the rollover threshold of the vehicle and reduce the probability of vehicle rolling which were caused by collision with another vehicle. In this study, we adjust the vehicle’s attitude to adjust the position of the vehicle for improving the safety of vehicle.
At first, we derive the related equations, built up the mathematic model and use MATLAB to analyze the system. Use the fuzzy theory in the active anti-roll system and compare the simulation results of vehicle with and without anti-roll system under different conditions, it shows that it can reduce the rolling angle and rolling angular speed, so that the vehicle can balance immediately and indeed increase the anti rollover capability of vehicle to certain degree.

誌謝 Ⅰ
摘要 Ⅱ
英文摘要 Ⅲ
目錄 Ⅳ
圖目錄 Ⅶ
表目錄 Ⅸ
第一章 緒 論·································1
1.1 前 言····································1
1.2 文獻回顧·································1
1.3 研究動機與目的···························3
1.4 章節概要·································3
第二章 相關理論基礎··························5
2.1 車輛翻覆行為·····························5
2.1.1 車輛運動座標系統·······················6
2.1.2 車輛翻覆可能性評估·····················6
2.2 車輛翻轉一般性分析·······················7
2.2.1 剛體車輛之準靜態翻轉···················7
2.2.2 懸吊車輛之準靜態翻轉··················10
2.2.3 動態翻轉······························12
2.2.4 動態傾覆臨界值························12
2.3 主動調變重心防滾系統之控制原理與概念····13
2.4 模糊技術之選用··························14
第三章 運動方程式推導與控制法則·············15
3.1 車輛姿態翻轉方程式推導··················15
3.2 主動調變重心防滾技術方程式推導··········18
3.3 動態傾覆臨界值評估方程式················20
3.4 Fuzzy 控制器法則························22
3.5 Fuzzy Tool Box··························27
第四章 電腦模擬分析·························32
4.1 參數設定································32
4.2 模擬····································33
4.2.1 模擬案例一····························33
4.2.2 模擬案例二····························34
4.3 分析與比較······························36
第五章 討論與結論···························37
5.1 討論····································37
5.2 結論····································38
參考文獻····································39

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