本研究針對線性電磁致動器提出詳細的設計，並探究將其應用於電動輔助轉向系統之可行性。所提出的結構整合了線性磁齒輪與線性永磁同步電動機，並採用無溝槽式定子線圈設計與徑向充磁式之雙永磁動子結構，以提高線性電磁致動器的推力密度，達到取代旋轉電動機與機械式齒輪箱設備的目的。此外依據整體體積、重量與穩態運轉條件規範限制下，發展出系統化的分析流程，以優化線性電磁致動器的尺寸結構，並詳細探究磁路模型設計與評估整體系統可輸出之推力。最後透過有限元素分析以確認本研究設計結果，以及模擬在不同駕駛環境中，線性電磁致動器的運轉條件是否能夠符合設計目標。

This thesis will present the detailed designs and feasibility assessments of a linear electromagnetic actuator that can be applied for Electric Power Steering System(EPS). The proposed structure integrates a linear magnetic gear with a permanent magnet (PM) motor. This structure utilizes slotless stator and radially magnetized PM movers to form a linear electromagnetic actuator that can offer higher force density to replace the rotary motor and the mechanical gear box. A systematic analyzing scheme will be developed to optimize the system structure within specified physical constraints and steady-state operation requirements. The magnetic fluxes and thrust generations that can be provided by the proposed system will be analyzed in detail. Finally, based on the results of finite element calculations, the designed component parameters obtained from the analytical model can be validated and the requirements of such a machine can be confirmed.

論文審定書　　i
誌謝　　　　　ii
中文摘要　　　iii
英文摘要　　　iv
目錄　　　　　v
圖目錄　　　　vii
表目錄　　　　ix
符號對照表　　x
第一章 緒論 1
1.1 前言 1
1.2 研究背景與動機 5
1.3 研究重點與目標 8
第二章 線性電動機結構之探討與分析 10
2.1 線性電動機 10
2.2 線性電動機種類與結構差異 13
2.3 無槽式管狀線性電動機推力之原理推導 18
第三章 磁性齒輪結構之探討與分析 24
3.1 磁齒輪概述 24
3.2 線性磁齒輪原理探討 27
3.3 線性磁齒輪傳遞推力原理推導 32
第四章 管狀線性電磁致動器之設計流程 38
4.1 管狀線性電磁致動器之規格 38
4.2 管狀線性電磁致動器設計流程 43
4.3 管狀線性電磁致動器之軸向尺寸設計 46
4.4 管狀線性電磁致動器之徑向尺寸設計 51
第五章 電磁致動器模擬結果 65
5.1 設計結果驗證 65
5.2 電動輔助轉向系統操作狀態模擬 70
第六章 結論與未來展望 84
參考文獻 86
作者簡歷 91

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