臺灣博碩士論文加值系統

無段變速系統是近年來車用傳動系統發展的重點，因此許多車廠和學者都積極投入此系統的研究。目前應用於一般車輛上的無段變速系統主要由感測器傳遞車速、油門開度等重要參數來決定此系統的液壓大小並改變減速比，此種方式使內燃機較無法維持在較佳燃油消耗運轉線。主動式無段變速系統則可精密控制電磁閥及其液壓大小，進而控制所需的減速比讓內燃機維持在較佳運轉線，提升內燃機的效率與降低油耗的損失。
本研究使用自行設計的主動式無段變速系統實驗平台進行實驗，同時針對此實驗平台應用LabVIEW軟體設計可作為監控程式的人機介面，並利用資料擷取系統( NI-USB 6229) 將實驗平台上各元件的類比訊號擷取後，透過人機介面即時監控各元件的運轉數據與輸出效率。本實驗也可依實驗平台上各元件的訊號與參數，進行三種標準行車型態的模擬分析測試(FTP75、NEDC2000及TAIPEI CITY)。藉著實驗平台所量測到金屬皮帶式無段變速系統的減速比、效率以及增加負載時主皮帶盤與副皮帶盤其油壓值的變化關係，可將主動式無段變速系統達到最佳化控制策略。
本研究結果顯示，本實驗平台可清楚的瞭解金屬皮帶式無段變速系統在各種行駛狀態下其油壓值變化關係。並且準確的提供主動式無段變速系統油壓控制參數，以達到有效控制其系統的減速比，並且找出符合最佳行車型態所需之性能參數。

The development of Continuously Variable Transmission system has been the mainly focused on the vehicles transmission system in recent years, leading to intensive research into this topic in many vehicle manufacturers and academic arena. The Continuously Variable Transmission systems currently used in general purpose vehicles mostly employ sensors to transmit data of key operational parameters, such as vehicle speed and throttle position for determining system’s hydraulic pressures and gear reduction ratios, thereby changing the speed of the vehicle. The drawback of this approach is that the internal combustion engine is unable to maintain a better fuel consumption line. By contrast, the Active-type Continuously Variable Transmission system is able to precisely control the solenoid valve and the hydraulic pressure in the vehicle, thereby controlling the gear ratio needed to maintain good fuel consumption line. Engine efficiency and fuel consumption reduction can thus be promoted.
In the present study, a self designed experiment platform of the Active-type Continuously Variable Transmission system was employed for conducting the experiments. Meanwhile, interaction of human-machine interface was monitored through LabVIEW software installed at the platform. In addition, the analog information of the operation data and the output efficiency generated by the various components on the platform were acquired via a data acquisition system, NI-USB 6229, to analyze the three standard types of vehicle moving simulation, i.e., FTP75, NEDC2000 and TAIPEI CITY. Through the experiment platform, the measured speed reduction ratio associated with the steel-belt type Continuously Variable Transmission system, the efficiency, as well as the variation relationship of hydraulic pressure between main belt wheel and auxiliary belt wheel during load increasing can be used to formulate an optimum control strategy for the Continuously Variable Transmission system.
The result of the present study demonstrated that the experiment platform proposed herein could: (1) clearly measure the variation of the hydraulic pressure under various vehicle operating conditions, and (2) accurately provided the Active-type Continuously Variable Transmission system with the parameters of the hydraulic pressure for controlling the various speed reduction ratios as well as finding out the most suitable performance parameters for best vehicle operating condition.

摘　要 ii
ABSTRACT iii
致　謝 v
目錄 vi
表目錄 viii
圖目錄 ix
第一章 緒論 1
1.1 研究動機 1
1.2 文獻回顧 2
1.3 研究目的 6
第二章 金屬皮帶式無段變速系統原理 7
2.1 金屬皮帶式無段變速系統簡介 7
2.2 金屬皮帶式無段變速系統變速原理 9
2.3 金屬皮帶摩擦因數與傳動效率 11
2.4 金屬皮帶傳動能力和皮帶輪軸向推力 12
第三章 無段變速系統人機介面軟體設計與撰寫 14
3.1 LabVIEW圖控程式架構 14
3.1.1 LabVIEW 環境簡介 15
3.1.2 人機介面設計流程 15
3.2無段變速人機介面監控系統 16
3.2.1 量測擷取記錄程式 19
3.2.2 CVT控制程式 29
3.2.3磁粉式煞車控制程式 31
3.2.4 實驗平台監控程式整合 32
第四章 實驗平台設置與量測規劃 37
4.1 實驗平台與各系統元件介紹 37
4.1.1實驗平台主要元件 38
4.1.2實驗平台各感測器元件 42
4.2 實驗量測規劃 44
第五章 實驗結果討論 46
5.1 轉速實驗結果 46
5.2 效率測試結果 47
5.3換檔油壓測試結果 49
5.4 LOCK-UP 油壓測試結果 51
5.5 負載油壓測試結果 54
5.6 行車型態實驗結果 59
第六章 結論 61
6.1 綜合結論 61
6.2 未來展望 62
參考文獻 63
符號彙編 65

[1]程乃士，汽車金屬帶式無級變速器-CVT原理與設計，機械工業出版社，北京， 2007年9月。
[2]S. Shuiwen, S. Alex, S. Maarten and V. Frans,“Coordinated control of a mechanical hybrid driveline with a continuously variable transmissio”SAE paper, 2001-04.
[3]P. Michiel, V. Bas, S. Bart , V. Frans and S. Maarten,“Control of a hydraulically actuated continuously variable transmission”Vehicle System Dynamics, Vol.44, NO.5, 2006, pp.387-406.
[4]T.H. Bradley and A.A. Frank,“Servo-Pump Hydraulic Control System Performance and Evaluation for CVT Pressure and Ratio Control”University of California-Davis,2006.
[5]K.K. Ang, C. Quek and A.Wahab,“MCMAC-CVT:a novel on-line associative memory based CVT transmission control system,”Neural Networks,2001, pp.219-236
[6]楊金晟，車用行星齒輪式無段變速系統之研究，北科技大學車輛工程系 碩士論文，民國97年。
[7]吳文琳、郭力偉，汽車無級變速器原理與維修，機械工業出版社，北京，2008年7月。
[8]A. Keiju and K. Masayuki,“Development of a New Metal Belt CVT for High Torque Engines,”SAE paper NO.2000-01-0829.
[9]2007 Nissan Altima – Road Test ,
http://www.familycar.com/RoadTests/NissanAltima/Index2007.htm, 2007.
[10]張樹培、張友坤、王慶年、盧延輝，壓力鋼帶式CVT滑轉率理論分析與精確測算方法研究，吉林大學，2009
[11]H. Emery, H. Paul ter and P. Tom van,“Aspects of a metal Pushing V-Belt for Automotive Cut Application”SAE Technical paper 881734,1988.
[12]K. Daisuke, M. Yutaka and K. Yoshiaki,“A Study on the Torque Capacity of a MetalPushing V-Belt for CVTs” SAE Technical paper 980822,1988.
[13]張偉華、謝�媔均B程乃士，金屬帶無級變速器摩擦因數和傳動效率的實驗研究，機械設計，Vol.23 ,NO.12 ,pp.41-43,2007
[14]B. Bonsen, R. J. Pulles, S.W.H. Simons, M. Steinbuch and P. A. Veenhuizen, “Implementation of a slip controlled CVT in a production vehicle”2005 IEEE Conference on Control Applications, Toronto, Canada, August 28-31, 2005, pp.1212-1217.
[15]陳偉生，金屬帶式無級變速器速比控制的研究，湖南大學機械與汽車工程學院 碩士論文，2008
[16]F. Toru and K. Takemasa,“A Study of a Metal Pushing V-Belt Type CVT -Part 1 : Relation Between Transmitted Torque and Pulley Thrust”SAE Technical paper 930666,1993.
[17]蕭子健、劉建昇，LabVIEW 概論篇，高立圖書，臺北，台灣，2001 年6 月
[18]R.H. Bishop著，喬瑞萍、林欣等譯，LabVIEW 7 實用教程，電子工業出版社，北京，2005年8月。
[19]陳瓊興、蔡昇偉、吳育昌，LabVIEW 7.X 實用教本，臺北縣新莊市:台科大圖書，2005。
[20]林俊宏、蕭子健，圖形系統設計之硬體介面專題製作 LabVIEW 8X，臺北縣:高立圖書，2007。
[21]蕭子健、王智昱、儲昭偉，虛擬儀控程式設計LabVIEW 8X，臺北縣:高立圖書，2007。
[22]陳雅玲，圖控式語言 ― LabVIEW在運動控制之設計發展，工研院機械所
[23]許昭傑，複合電動系統實驗平臺監控技術之發展，碩士論文，國立臺北科技大學車輛工程學系，民國97年。
[24]陳昱廷，並聯式複合動力系統設置與研究，碩士論文，國立臺北科技大學車輛工程學系，民國96年。