全輪驅(qū)動(dòng)汽車(chē)底盤(pán)測(cè)功機(jī)控制系統(tǒng)設(shè)計(jì)

機(jī)械論文編號(hào):JX868  論文字?jǐn)?shù):16566.頁(yè)數(shù):37   附CAD圖

目  錄
中文摘要 i
英文摘要 ii
目錄 iv
第一章    緒論 1
1.1汽車(chē)底盤(pán)測(cè)功機(jī)概述 1
1.2 汽車(chē)底盤(pán)測(cè)功機(jī)的發(fā)展?fàn)顩r 2
1.3汽車(chē)底盤(pán)測(cè)功機(jī)研究的意義 3
1.4汽車(chē)底盤(pán)測(cè)功機(jī)開(kāi)發(fā)的意義 3
1.5汽車(chē)動(dòng)力性評(píng)價(jià)指標(biāo)體系 4
1.6本文的主要研究?jī)?nèi)容 6
第二章  汽車(chē)底盤(pán)測(cè)功機(jī)結(jié)構(gòu) 7
2.1滾筒裝置 7
2.2加載裝置 8
2.3測(cè)量裝置 10
2.4汽車(chē)道路行駛阻力分析 10
第三章 汽車(chē)底盤(pán)測(cè)功機(jī)的硬件設(shè)計(jì) 14
3.1系統(tǒng)硬件總體結(jié)構(gòu) 14
3.2傳感器的選擇 15
3.2.1傳感器選擇原則 15
3.2.2速度傳感器 16
3.2.3驅(qū)動(dòng)力傳感器 18
3.2.4傳感器供電電源 19
3.3光電開(kāi)關(guān) 19
3.4交流電力測(cè)功機(jī)的選型 19
3.5工業(yè)控制元件 23
3.5.1 工業(yè)控制計(jì)算機(jī) IPC-610 MB 23
3.5.2 D/A信號(hào)輸出板 24
3.5.3定時(shí)計(jì)數(shù)器 26
3.5.4 DA數(shù)據(jù)采集卡 27
第四章 測(cè)功機(jī)的功能 29
4.1測(cè)功機(jī)功能簡(jiǎn)要介紹 29
4.2轉(zhuǎn)矩測(cè)量 29
4.3功率測(cè)量 29
4.4速度測(cè)量 29
4.5距離測(cè)量 30
第五章 總結(jié) 31
致 謝 32
參考文獻(xiàn) 33

摘要
 隨著科學(xué)技術(shù)的不斷進(jìn)步，我國(guó)汽車(chē)工業(yè)得到了迅猛的發(fā)展。汽車(chē)結(jié)構(gòu)不斷完善，汽車(chē)性能不斷提高。人們對(duì)汽車(chē)性能要求的不斷提高，一方面促進(jìn)了傳統(tǒng)的汽車(chē)技術(shù)與現(xiàn)代電子技術(shù)的結(jié)合，使汽車(chē)的經(jīng)濟(jì)技術(shù)指標(biāo)在最近幾十年有了大幅度的提高；另一方面，它促進(jìn)汽車(chē)綜合性能現(xiàn)代檢測(cè)技術(shù)的發(fā)展和廣泛應(yīng)用，大大提高了汽車(chē)新產(chǎn)品的開(kāi)發(fā)速度和出廠產(chǎn)品質(zhì)量的控制能力。
 汽車(chē)底盤(pán)測(cè)功機(jī)是一項(xiàng)重要的室內(nèi)臺(tái)架檢測(cè)設(shè)備，通過(guò)底盤(pán)測(cè)功機(jī)不僅可以對(duì)汽車(chē)進(jìn)行動(dòng)力性檢測(cè)，而且還可以測(cè)量多工況排放指標(biāo)及油耗，同時(shí)還能方便地進(jìn)行汽車(chē)加載調(diào)試和診斷汽車(chē)在負(fù)載條件下出現(xiàn)的故障等。所有測(cè)試結(jié)果的準(zhǔn)確性和可靠性都取決于底盤(pán)測(cè)功機(jī)能否對(duì)汽車(chē)的道路行駛阻力做出真實(shí)的模擬。
 本文設(shè)計(jì)了由PC機(jī)和I/O板、A/D板組成的汽車(chē)底盤(pán)測(cè)功機(jī)測(cè)控系統(tǒng)，充分發(fā)揮了PC機(jī)運(yùn)算、存儲(chǔ)能力強(qiáng)；I/O板和A/D板接口多、傳輸速度快的特點(diǎn)。在本系統(tǒng)中，所用的數(shù)據(jù)處理、指令控制及軟件運(yùn)行都由PC機(jī)來(lái)處理，這樣就使得系統(tǒng)的硬件更加簡(jiǎn)化和高效。硬件系統(tǒng)的主要功能是根據(jù)當(dāng)前檢測(cè)項(xiàng)目的需要，并通過(guò)判斷底盤(pán)測(cè)功機(jī)當(dāng)前狀態(tài)，發(fā)出指令，使底盤(pán)測(cè)功機(jī)按當(dāng)前要求狀態(tài)工作；當(dāng)車(chē)到達(dá)指定位置后，PC機(jī)發(fā)出指令，開(kāi)始檢測(cè)并采集數(shù)據(jù)，輸入PC機(jī)進(jìn)行計(jì)算處理，并將處理結(jié)果打印出來(lái)。文中闡述了底盤(pán)測(cè)功機(jī)的發(fā)展?fàn)顩r,并介紹了汽車(chē)動(dòng)力性評(píng)價(jià)指標(biāo)體系以及汽車(chē)底盤(pán)測(cè)功機(jī)結(jié)構(gòu)。本系統(tǒng)能夠有效地對(duì)汽車(chē)動(dòng)力性、燃油經(jīng)濟(jì)性進(jìn)行測(cè)試。該系統(tǒng)用戶界面好、操作方便。最后還介紹了汽車(chē)底盤(pán)測(cè)功機(jī)的相關(guān)功能。
 
關(guān)鍵詞：底盤(pán)測(cè)功機(jī)  汽車(chē)動(dòng)力性   傳感器   A/D板   滾筒。

All-wheel-drive dynamometer site control system development
 
Abstract
 With the incessant progress of the science and technology, the automobile industry of our country develops rapidly. The structure of automobile becomes perfect and the performance gets enhanced. On the one hand, the higher demand of automobile performance accelerates the coalescent between traditional automobile technique and modern electron technology,and the automobile technical indexes have been enhanced greatly.On the other hand it accelerates the development of integrated automobile detection technique, and speeds up the research and renovation of the automobile testing equipments.
 Chassis Dynamometer is an important indoor bench testing equipment, through the chassis dynamometer for vehicle not only for dynamic testing, but also can measure the status of multi-emissions and fuel consumption indicators, while convenient for car set debug and diagnosis of vehicle load conditions, such as breakdown. All test results are determined by the accuracy and reliability of the chassis dynamometer can of road vehicles to make a real simulation of the resistance.
 In this paper, designed by the PC and I / O board, A / D board, composed of measurement and control system, give full play to the PC-computing, storage capacity,; I / O board and A / D interface board, and transmission speed characteristics. In this system, used in data processing, control and command software by the PC machine to handle, thus making the system more streamlined and efficient hardware. The primary function of the hardware system is based on the current needs of the test items and, through the chassis dynamometer to determine the current status, to give directions, so that chassis dynamometer in accordance with the current state of work requirements; when the car arrived at the designated location, PC machine issued a directive to begin detect and collect data, enter the PC computing machine, and print out the results. The article elaborated on the chassis dynamometer development, and presented the eva luation of automotive power systems and vehicle structure chassis dynamometer. The system can effectively power the car, fuel economy testing. The system is a good user interface, easy to operate. Finally, introduced the chassis dynamometer of related functions.
 
 Keywords：Chassis dynamometer ；Vehicle dynamic ；Sensor ；A / D board ；Drum.