本文關(guān)鍵詞：基于AMESim的靜液傳動車輛驅(qū)動系統(tǒng)控制及仿真，，由筆耕文化傳播整理發(fā)布。

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國內(nèi)圖書分類號:U463.22 學校代碼:10213 國際圖書分類號:629 密級:公開碩士學位論文基于AMESim的靜液傳動車輛驅(qū)動系統(tǒng)控制及仿真碩士研究生:陳娟娟導 師:劉濤副教授申請學位:工學碩士學科:車輛工程所在單位:汽車工程學院答辯日期:2010年6月授予學位單位:哈爾濱工業(yè)大學Classified Index: U463.22 University Code: 10213 U.D.C: 629 Security: Open Dissertation for the Master’s Degree in Engineering CONTROL AND SIMULATION ABOUT DRIVING SYSTEM OF HYDROSTATIC TRANSMISSION VEHICLE BASED ON AMESim Candidate:Chen Juanjuan Supervisor:Associate Prof. Liu Tao Academic Degree Applied for:Master of Engineering Speciality:Vehicle Engineering Affiliation:School of Automobile Engineering Date of Defence:June, 2010 Degree-Conferring-Institution:Harbin Institute of Technology 哈爾濱工業(yè)大學工學碩士學位論文-I- 摘要靜液傳動系統(tǒng)可以在較寬的轉(zhuǎn)速范圍內(nèi)實現(xiàn)車輛可控的無級變速,能夠以較小的體積和重量傳遞較大的功率,運行成本低,在車輛行駛驅(qū)動系統(tǒng)中得到了廣泛應用。但該系統(tǒng)是一類典型的非線性、時變性的高階系統(tǒng),車輛使用工況復雜、負載變化大,使系統(tǒng)的動態(tài)性能隨負載變化而變化,而且變化的動態(tài)性能也使整個動力傳動系統(tǒng)效率降低,耗油大,因此迫切需要采用先進的控制技術(shù)來提高系統(tǒng)性能。本文概述了靜液傳動車輛驅(qū)動系統(tǒng)近年的發(fā)展現(xiàn)狀,并就靜液傳動系統(tǒng)結(jié)構(gòu)及原理、變量泵-定量馬達調(diào)速系統(tǒng)、泵排量控制機構(gòu)、發(fā)動機的性能評價指標以及發(fā)動機-變量泵功率匹配等相關(guān)問題進行了詳細的研究分析。重點研究了泵控馬達閉式回路調(diào)速系統(tǒng),基于液壓仿真軟件AMESim建立相應的動態(tài)仿真模型,且對影響系統(tǒng)動態(tài)性能的因素進行了仿真分析。分析表明需要設計合適的控制策略,從而提高調(diào)速系統(tǒng)的動態(tài)性能。首先采用常規(guī)PID方法進行速度控制仿真,結(jié)果表明PID只能利用一組固定參數(shù)進行控制,具有一定局限性,單獨使用這種控制無法從根本上解決動態(tài)品質(zhì)和穩(wěn)態(tài)精度的矛盾。為此,引入模糊控制的方法,利用車輪馬達轉(zhuǎn)速誤差和誤差的變化率作為模糊控制器的輸入,變量泵排量控制電流的補償量作為輸出,在MATLAB/Simulink中設計了模糊控制器。結(jié)合AMESim中的系統(tǒng)模型,進行聯(lián)合仿真。結(jié)果表明模糊控制比PID控制具有更強的魯棒性,也說明了本文所設計的模糊控制器控制效果較好,具有一定的理論意義和實際應用價值。本文的研究內(nèi)容為采用新型仿真軟件AMESim在靜液傳動系統(tǒng)中的應用提供了依據(jù),為設計泵控馬達調(diào)速系統(tǒng)的控制策略提供了參考。關(guān)鍵詞:靜液傳動;AMESim;PID控制;模糊控制哈爾濱工業(yè)大學工學碩士學位論文-II-Abstract Hydrostatic transmission system can be in a wide range of vehicle speed to realize stepless speed control, and with a small volume and weight to transfer large power, low operating cost, therefore it has been widely used in the vehicle driving systems. But this hydrostatic transmission system is a typical nonlinear, time varying high order system. plex working conditions, and big load changes, made the dynamic performance of system change with load changes, and the changes of the dynamic performance also made the power transmission system efficiency reducing, had a gas-guzzling. So it desperately needs to adopt the advanced control technology to improve system performance. This thesis summarized the development of research on the driving system of hydrostatic transmission vehicles in recent years. Detailed analysis had been done for the hydrostatic driving system structure and principle, the speed control system of the variable pump and quantitative motor, pump discharge control agencies, engine performance evaluation indexes, and power match between engine and the variable pump and other related problems. Focuses on closed loop speed adjust system of the pump controlling motor, the hydraulic dynamic simulation model was set up based on the AMESim simulation software. And then simulation analysis had been done for the influence factors of the system dynamic performance. An

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  本文關(guān)鍵詞：基于AMESim的靜液傳動車輛驅(qū)動系統(tǒng)控制及仿真，由筆耕文化傳播整理發(fā)布。