臺灣博碩士論文加值系統

本文內容包括直流馬達、馬達驅動電路和微電腦控制器以及車輛方向盤機構，嘗試利用直流馬達的特性，模擬車輛在不同道路上行駛轉向，車輛方向盤上所反映的力矩變化，利用車輛動力學，我們可以藉由車輛的特徵參數及車輛行駛狀態來模擬，車輛行駛在不同的道路上，車輛方向盤應的回饋力矩變化。
更可以透過更改微電腦控制器中車輛的特徵參數和車輛行駛狀態，模擬不同車輛在不同路面上轉向時車輛方向盤力矩變化。
未來可發展為線控轉向系統其中的力回饋方向盤系統，以取代傳統轉向系統，透過力回饋馬達將路面狀況回授給駕駛人。

This article content including the DC motor, the DC motor driving circuit and the microcomputer controller as well as the vehicles steering wheel organization, the attempt use DC motor's characteristic, simulates the vehicles to go on the different path changes, on the vehicles steering wheel reflected the moment variation. Using the vehicles dynamics, we may simulates because of vehicles' characteristic parameter and the vehicles drive condition, the vehicles travel on the different path, the vehicles steering wheel should respond how many moment variation.
In this article, we can change microcomputer controller vehicles' characteristic parameter and vehicles drive condition, easier simulation different vehicles go the vehicles steering wheel moment variation which in different road surfaces.

摘要 I
ABSTRACT II
誌 謝 III
CONTENTS IV
LIST OF FIGURES VII
LIST OF TABLES XI
CHAPTER 1INTRODUCTION 1
1.1. MOTIVE AND OBJECTIVES 1
1.2. LITERATURE REVIEW 1
1.2.1. Faila’s model 1
1.2.2. Magic Formula 2
1.2.3. Mitschke’s model 3
1.2.4. UniTire model 5
1.2.5. The model of vehicles 6
1.3. STRUCTURE OF THE STEERING WHEEL 6
CHAPTER 2VEHICLE STEERING SYSTEM 7
2.1. THE STEERING SYSTEM 7
2.1.1. Introduction of the Steering System 7
2.1.2. The steering linkages 7
2.2. TIRE ANGLE GEOMETRY 9
2.2.1. Front wheel geometry 9
2.2.2. Camber angle 10
2.2.3. Kingpin inclination angle(Lateral inclination angle) 11
2.2.4. Toe angle 11
2.2.5. Caster angle 12
2.2.6. Slip angle 14
2.2.7. Formulation of geometry 15
2.3. STEERING SYSTEM FORCES AND MOMENTS 17
2.3.1. Vertical force 18
2.3.2. Traction force 19
2.3.3. Lateral force 20
2.3.4. Aligning torque 20
2.3.5. Rolling resistance moment and Overturning moment 21
2.4. TORQUE FEEDBACK ON THE STEERING WHEEL 21
CHAPTER 3MATH MODEL OF STEERING SYSTEM 23
3.1 NOMENCLATURE OF THE MATH MODEL 23
3.2 MECHANICAL STEERING SYSTEM 25
3.3 STEER-BY-WIRE SYSTEM 25
3.4 TORQUE OF THE EXTERNAL ENVIRONMENT 26
3.5 LQG CONTROLLER 28
CHAPTER 4SIMULATION RESULTS 30
4.1 CASE 1: CIRCULAR MOTION 30
4.2 CASE 2: TURN A CORNER 31
4.3 CASE 3 : CHANGE LINE 32
4.4 CONCLUSION 32
REFERENCE 33
FIGURES 36
TABLES 67

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