【正文】 ........................... 2 國外背景 ........................................................................................................................... 3 1． 2 研究水平與發(fā)展趨勢(shì) ...................................................................................................... 3 2 汽車油耗智能檢測(cè)技術(shù)研究的意義 及內(nèi)容 ....................... 4 2． 1 汽車油耗檢測(cè)技術(shù)研究的意義 ........................................... 4 2． 2 本文的主要研究?jī)?nèi)容 ................................................... 4 2． 3 系統(tǒng)的功能要求 ....................................................... 4 2． 4 總體設(shè)計(jì)思路 ......................................................... 5 3 硬件電路設(shè)計(jì) .............................................. 6 3． 1 單片機(jī)的選擇 ......................................................... 6 3． 2 AT89S52 單片機(jī)的介紹 .................................................................................................. 6 3． 3 顯示模塊 ........................................................................................................................ 12 3． 4 電源轉(zhuǎn)換模塊 ................................................................................................................ 12 3． 5 傳感器模塊 .......................................................... 13 3． 6 單片機(jī)斷電檢測(cè)模塊 .................................................................................................... 17 3． 7 數(shù)據(jù)保存芯片 24C02 ................................................................................................... 18 3． 8 按鍵模塊 ........................................................................................................................ 19 3． 9 本章小結(jié) ........................................................................................................................ 20 4 軟件的設(shè)計(jì)與調(diào)試 ................................................... 21 4． 1 初始化程序 .................................................................................................................... 21 4． 2 測(cè)量油耗邏輯程序設(shè)計(jì) ................................................................................................. 22 4． 3 LCD 顯示程序 ........................................................ 24 4． 4 本章小結(jié) ............................................................ 25 5 系統(tǒng)制作及調(diào)試 ........................................... 26 5． 1 板子的制作 .......................................................... 26 Protel99 的使用步驟及經(jīng)驗(yàn) .......................................................................................... 26 電路板的制作步驟 ......................................................................................................... 27 5． 2 系統(tǒng)的軟硬件調(diào)試 .................................................... 28 系統(tǒng)調(diào)試使用的儀器 .................................................................................................... 28 系統(tǒng)調(diào)試的內(nèi)容 ............................................................................................................. 28 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 系統(tǒng)調(diào)試過程中遇到的問題 ........................................................................................ 28 結(jié) 論 ...................................................... 28 謝 辭 ...................................................... 30 參考文獻(xiàn) .................................................... 30 附 錄 ...................................................... 32 原理圖 ................................................... 錯(cuò)誤 !未定義書簽。 sensor。s lives and production, on the other hand, society brought about serious problems such as environmental pollution and energy shortages. The gradual strengthening of the human awareness of environmental protection, it is more concerned about the fuel consumption of the vehicle, to restrict the fuel consumption of the vehicle is more urgent. Therefore, the study of the car39。 本文在分析和總結(jié)目前國內(nèi)外車輛油耗檢測(cè)儀器普遍存在的問題的基礎(chǔ)上，根據(jù)油耗儀現(xiàn)有的技術(shù)水平和發(fā)展趨勢(shì)，采用傳感 器 技術(shù)、單片機(jī)技術(shù)和顯示技術(shù)，研制智能型汽車油耗檢測(cè)儀器。 因此，研究汽車的燃油消耗和降低排放污染就成為該研究領(lǐng)域的重點(diǎn)內(nèi)容之一。 編號(hào)： 畢業(yè)設(shè)計(jì)說明書 題 目： 機(jī)動(dòng)車油耗量的計(jì)算與顯示 院 （系）： 電子工程與自動(dòng)化學(xué)院 專 業(yè)： 自動(dòng)化 題目類型： 理論研究 實(shí)驗(yàn)研究 √ 工程設(shè)計(jì) 工程技術(shù)研究 軟件開發(fā) 2020 年 5 月 20 日 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 摘 要 汽車的發(fā)展是人類生活文明與進(jìn)步的標(biāo)志。 對(duì)汽車燃油經(jīng)濟(jì)性的評(píng)價(jià)，一般是通過汽車燃油消耗量來確定的，也是診斷和分析汽車故障的重要參考。車輛智能油耗儀在單片機(jī)的控制下，通過計(jì)算流量傳感器送來的燃油流量脈沖信號(hào) 和光電傳感器計(jì)算機(jī)動(dòng)車的轉(zhuǎn)速的脈沖信號(hào)， 在控制軟件的支撐下，能測(cè)量汽車的平均油耗 、 瞬時(shí)油耗 、速度和里程 。s fuel consumption and reduce emissions pollution has bee one of the key elements of the research field. Vehicle fuel economy rating is generally determined by the vehicle fuel consumption, vehicle fault diagnosis and analysis of an important reference. The detection of car fuel consumption is often the volume or quality of the detector measuring fuel consumption by fuel consumption. Ordinary car fuel consumption detection device in the test range, test accuracy, use and maintenance and reliability are not very satisfactory, need to be further improved. Analyze and summarize a mon problem in the fuel consumption of the vehicle detection equipment at home and abroad on the basis of the existing level of technology and development trends of the oil consumption meter, sensor technology, singlechip technology and display technology, the development of intelligent vehicle fuel consumption testing instruments. Intelligent Vehicle Fuel Consumption under the control of the microcontroller, the rotational speed of the motor vehicle fuel flow pulse signal sent by calculating the flow sensor and photoelectric sensor pulse signal control software support, can measure a vehicle39。 fuel consumption。 PCB 圖 ................................................................... 33 程序 ..................................................................... 35 桂林電子科技大學(xué)畢業(yè)設(shè)計(jì)（論文）報(bào)告用紙 第