【正文】
2地防止或減少對(duì)人員造成的傷害。汽車安全性分為三大部分:主動(dòng)安全性、被動(dòng)安全性和防火安全性。中國(guó)每5分鐘有一人因車禍死亡,每一分鐘有一人因車禍傷殘,每天死亡280多人,每年死亡10萬多人,中國(guó)的汽車數(shù)量?jī)H占世%,而車禍死亡人數(shù)占世界15%,%。自2022年以來全國(guó)交通事故死亡人數(shù)首次回落到10萬人以下。若以萬輛車的死亡率作比較,我國(guó)車禍的發(fā)生率和死亡率皆居世界之首位。據(jù)估計(jì),近年來全世界每年在車禍中喪生的人數(shù)約為30萬人,受傷者約3000萬人,其中終身殘疾者約為300萬人。而其中以青少年與老年人的死亡率最高。據(jù)統(tǒng)計(jì),在各種意外事故中,以車禍占首位,占意外死亡總數(shù)的50%以上。然而,隨著汽車技術(shù)的不斷進(jìn)步以及車輛數(shù)目的增加,汽車也給現(xiàn)代社會(huì)帶來了新的問題。想當(dāng)初,卡爾.本茨造出的三輪汽車每小時(shí)的時(shí)速僅為18公里/時(shí),而現(xiàn)在已經(jīng)誕生了時(shí)速600公里的超級(jí)跑車。 本章小結(jié) ..........................................28結(jié) 論 ...........................................................................................................29參考文獻(xiàn) .....................................................................................................30致 謝 .........................................................................................................31附 錄 .........................................................................................................32附 錄 1 原理圖 .........................................................................................32附 錄 2 PCB .............................................................................................33附 錄 3 實(shí)物圖 ........................................................................................34附 錄 4 程序代碼 .....................................................................................351第 1 章 緒論167。 系統(tǒng)軟件調(diào)試 ......................................26167。 常見的硬件故障 .................................25167。 本章小結(jié) ..........................................24第 5 章 系統(tǒng)調(diào)試 .......................................................................................25167。 隨動(dòng)轉(zhuǎn)彎程序 ...................................22167。 程序思路 ...........................................20167。 傳感器模塊選擇 ....................................17167。 電機(jī)控制電路設(shè)計(jì) ...............................15167。 信號(hào)處理電路設(shè)計(jì) ...............................13167。 AFS 主控制器設(shè)計(jì) ...................................11167。 車身縱傾調(diào)光 ...................................10167。 系統(tǒng)的工作原理 .....................................8167。 系統(tǒng)的功能及構(gòu)成 ...................................6167。 國(guó)內(nèi)外發(fā)展現(xiàn)狀及發(fā)展趨勢(shì) ...........................3167。關(guān) 鍵 詞:自適應(yīng)照明,隨動(dòng)轉(zhuǎn)向,安全駕駛,STC90C51 A PROJECT OF AUTOMOTIVE ADAPTIVE FRONT LIGHTING SYSTEMIIABSTRACTTraditional automotive lighting system consists of three major ponents: headlamp system, signal lighting and interior lighting system. As technology advances, the traditional lighting system also continues to develop, but in practice, there are still many problems in the traditional headlamp system. Facing plex road conditions and driving conditions, there are colossal security bungles in the traffic safety. Therefore, how to make the traditional automotive lighting intelligent, and how to make the driving more secure and more fortable have bee a very urgent and great practically significant issue.The traditional automotive lighting drive at night may be faced some conditions, for example, inability of adjusting illumination angels at the curve, the appearance of blind section at the clip, inability of adjusting illumination angels at the ramp, based on which, a headlamp adaptive lighting control system at the curve is put forward in order to improve the driving safety at night. This paper introduces a Computer control system of the automotive adaptive headlamps with STC90C51 microcontroller core design. The paper will briefly introduce the background of the appearance of autoadaptive headlamps, and its current development situations and trends at home and abroad. It will also analyze the position, function and working theory of the system. The hardware part in the paper detailed designs the host controller and peripheral circuits of the auto adaptive headlamps left and right tuning puter control system. The software part projects the overall process of system software, algorithms program, finishing a control system that can optional turn according to vehicle speed and steering angle signals. The final system debugging ensures that when the vehicles are driving at the curve, the headlamps can adjust itsel according to road conditions to a suitable position to light for the drivers. The project is of feasibility and correctness.At the end of the paper, a conclusion of the project is drawn to put forward some problems waiting for solving and to e up with some idea about the later improvement.III Key words: adaptive lighting, tracking turning, safe driving,STC90C5IV目 錄第 1 章 緒論 .................................................................................................1167。表明了本設(shè)計(jì)方案的可行性和正確性。在軟件部分,設(shè)計(jì)了系統(tǒng)軟件的整體流程,算法程序,實(shí)現(xiàn)了一個(gè)可根據(jù)道路以及方向盤轉(zhuǎn)角信號(hào)隨動(dòng)轉(zhuǎn)向的控制系統(tǒng)。分析了該系統(tǒng)的組成、功能和工作原理。本文主要介紹了一種以單片機(jī) STC90C51 為核心設(shè)計(jì)的汽車自適應(yīng)前照燈計(jì)算機(jī)控制系統(tǒng)。因此,如何使傳統(tǒng)汽車照明智能化,駕車更安全,更舒適就成為一個(gè)十分緊迫而又有重大現(xiàn)實(shí)意義的課題。I汽車自適應(yīng)前照燈系統(tǒng)的設(shè)計(jì)摘 要傳統(tǒng)的汽車照明系統(tǒng)主要由前照燈系統(tǒng),信號(hào)照明系統(tǒng),車內(nèi)照明系統(tǒng)三大部分組成。隨著科技的進(jìn)步,傳統(tǒng)照明系統(tǒng)也經(jīng)歷了長(zhǎng)足的發(fā)展,但是實(shí)際的使用中,傳統(tǒng)的前照燈系統(tǒng)依然存在著諸多問題,在面對(duì)復(fù)雜的道路條件和行車狀況時(shí),交通安全仍然存在巨大的隱患。針對(duì)傳統(tǒng)的汽車照明燈夜間行駛在彎道時(shí)無法調(diào)節(jié)照明角度、在彎道內(nèi)側(cè)易出現(xiàn)盲區(qū),在坡道無法調(diào)節(jié)照明角度等情況,提出了一種前照燈彎道自適應(yīng)照明控制系統(tǒng),以提高夜間行車安全性。簡(jiǎn)要的介紹汽車自適應(yīng)前照燈的產(chǎn)生的背景、當(dāng)今國(guó)內(nèi)外發(fā)展現(xiàn)狀及趨勢(shì)。在文章硬件部分,詳細(xì)設(shè)計(jì)了汽車自適應(yīng)前照燈左右轉(zhuǎn)向計(jì)算機(jī)控制系統(tǒng)的主控制器及外圍電路。通過最后的系統(tǒng)調(diào)試,保證了車輛在彎道行駛時(shí),前照燈能根據(jù)路況調(diào)整到合適的位置給駕駛者提供照明。在論文的最后,對(duì)本次畢業(yè)設(shè)計(jì)進(jìn)行了總結(jié),提出了一些尚待解決的問題,為今后的進(jìn)一步完善提出了參考意見。 課題背景 ...........................................1167。 本課題的研究意義與主要內(nèi)容 ..........................5第 2 章 系統(tǒng)整體方案設(shè)計(jì) .........................................................................6167。 系統(tǒng)基本功能 .......................................8167。 隨動(dòng)轉(zhuǎn)彎角度 ....................................9167。 本章小結(jié) ...........................................10第 3 章 系統(tǒng)硬件設(shè)計(jì) ...............................................................................11167。 微控制芯片的選型 ...............................11167。 電源電路設(shè)計(jì) ...................................15167。 執(zhí)行器選擇 ........................................17167。 本章小結(jié) ...........................................19第 4 章 系統(tǒng)軟件設(shè)計(jì) ...............................................................................20167。 系統(tǒng)分塊程序設(shè)計(jì) ...................................21