Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle
碩士 === 國立臺灣大學 === 機械工程學研究所 === 106 === The purpose of this study is to develop and to evaluate a new design of selection of transmission gear ratio for passenger cars by analyzing the interrelations between gear ratio, design parameters of ultra multi-speed transmission and performance of engine veh...
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ndltd-TW-106NTU054890952019-05-16T01:00:02Z http://ndltd.ncl.edu.tw/handle/4hmez7 Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle 車輛極多速變速箱速比之設計評估 Hong-Sheng Yao 姚宏昇 碩士 國立臺灣大學 機械工程學研究所 106 The purpose of this study is to develop and to evaluate a new design of selection of transmission gear ratio for passenger cars by analyzing the interrelations between gear ratio, design parameters of ultra multi-speed transmission and performance of engine vehicle. Ultra multi-speed transmission provides vehicle with larger range of tractive effort and speed, satisfying the performance requirements and also decreasing the energy consumption. The first step is to match the transmission to the engine and the powertrain system to optimize the powertrain output. Then, with the matching design parameters of ultra multi-speed transmission, the design principles of ultra multi-speed transmission is analyzed, including gear ratio and shift schedule. Improving the efficiency of engine and performance of vehicle is the main goal of this approach. The main analysis is based on ADVISOR, using NEDC driving cycle of ADVISOR to analysis fuel consumption. Then, a program written in MATLAB is used to simulate performance of vehicle. Finally, the new design of selection of ultra multi-speed transmission is applied and compared with the traditional design of selection for discussing the necessity of ultra multi-speed transmission. Tyng Liu 劉霆 2018 學位論文 ; thesis 118 zh-TW |
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碩士 === 國立臺灣大學 === 機械工程學研究所 === 106 === The purpose of this study is to develop and to evaluate a new design of selection of transmission gear ratio for passenger cars by analyzing the interrelations between gear ratio, design parameters of ultra multi-speed transmission and performance of engine vehicle.
Ultra multi-speed transmission provides vehicle with larger range of tractive effort and speed, satisfying the performance requirements and also decreasing the energy consumption. The first step is to match the transmission to the engine and the powertrain system to optimize the powertrain output. Then, with the matching design parameters of ultra multi-speed transmission, the design principles of ultra multi-speed transmission is analyzed, including gear ratio and shift schedule. Improving the efficiency of engine and performance of vehicle is the main goal of this approach. The main analysis is based on ADVISOR, using NEDC driving cycle of ADVISOR to analysis fuel consumption. Then, a program written in MATLAB is used to simulate performance of vehicle. Finally, the new design of selection of ultra multi-speed transmission is applied and compared with the traditional design of selection for discussing the necessity of ultra multi-speed transmission.
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Tyng Liu |
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Tyng Liu Hong-Sheng Yao 姚宏昇 |
author |
Hong-Sheng Yao 姚宏昇 |
spellingShingle |
Hong-Sheng Yao 姚宏昇 Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle |
author_sort |
Hong-Sheng Yao |
title |
Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle |
title_short |
Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle |
title_full |
Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle |
title_fullStr |
Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle |
title_full_unstemmed |
Design and Evaluation of Ultra Multi-Speed Transmission Speed Ratio for Vehicle |
title_sort |
design and evaluation of ultra multi-speed transmission speed ratio for vehicle |
publishDate |
2018 |
url |
http://ndltd.ncl.edu.tw/handle/4hmez7 |
work_keys_str_mv |
AT hongshengyao designandevaluationofultramultispeedtransmissionspeedratioforvehicle AT yáohóngshēng designandevaluationofultramultispeedtransmissionspeedratioforvehicle AT hongshengyao chēliàngjíduōsùbiànsùxiāngsùbǐzhīshèjìpínggū AT yáohóngshēng chēliàngjíduōsùbiànsùxiāngsùbǐzhīshèjìpínggū |
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1719173060962025472 |