發(fā)布時(shí)間：2018-04-30 12:50

  本文選題：汽車會(huì)車 + 眩目�。� 參考：《重慶交通大學(xué)》2014年碩士論文

【摘要】：夜間行駛時(shí),很多交通事故都是由于汽車前照燈給對方駕駛員造成眩目引起的。怎樣防止眩目已成為汽車安全的一個(gè)重要問題。影響汽車前照燈眩目的因素有很多,人、車、路和環(huán)境都影響著前照燈眩目的程度。而目前的關(guān)于防眩目的控制策略上多采用控制單因素變量的方法,但是僅僅控制單因素對眩目程度的判斷精度較低。本文綜合考慮了汽車運(yùn)行和道路線形多因素對眩目的影響,分析了各因素對眩目的影響規(guī)律。 本文所分析的汽車運(yùn)行和道路線形各因素對眩目的影響規(guī)律能夠順應(yīng)以后汽車信息化發(fā)展的趨勢,在會(huì)車的過程中交換彼此的物理信息,車載處理器根據(jù)全面的信息判斷前照燈是否給對方駕駛員造成眩目,從而給出適當(dāng)?shù)臒艄夤庑?給雙方駕駛員提供良好的會(huì)車照明環(huán)境。本文分析的規(guī)律可以作為其判斷是否眩目和控制自適應(yīng)前照燈轉(zhuǎn)角使其光形不致眩目的理論基礎(chǔ)。 在數(shù)據(jù)擬合方面,利用最小二乘法對等光強(qiáng)曲線的近似橢圓的長半軸和短半軸進(jìn)行關(guān)系擬合,驗(yàn)證相關(guān)性系數(shù)達(dá)到了要求,選擇一元一次函數(shù)作為基礎(chǔ)建立起模型,并用三次樣條插值曲線進(jìn)行比對驗(yàn)證,最終確定擬合函數(shù)；對橢圓的短半軸和其代表的光強(qiáng)值進(jìn)行關(guān)系擬合,對比DataFit軟件和最小二乘法,最終選用DataFit軟件擬合出其關(guān)系模型。 在分析水平直線公路上行駛下各因素對眩目的影響時(shí),控制其他因素不變,求出在會(huì)車過程中不同年齡下的眩目程度,做出曲線分析駕駛員年齡對眩目的影響規(guī)律,然后依次分析駕駛員相對視線高度、橫向距離對眩目的影響規(guī)律,最后模擬一個(gè)實(shí)際的會(huì)車情況,分析會(huì)車過程中眩目程度的變化規(guī)律。在分析有橫向坡度的轉(zhuǎn)彎公路上行駛眩目的變化規(guī)律時(shí),將有橫向坡度的公路假設(shè)為錐形體的內(nèi)壁,建立三維直角坐標(biāo)系,確定兩車的坐標(biāo),再建立平面直角坐標(biāo)系,將坐標(biāo)系中相會(huì)車輛的坐標(biāo)轉(zhuǎn)換到等光強(qiáng)曲線坐標(biāo)系中。根據(jù)我國公路設(shè)計(jì)標(biāo)準(zhǔn)中的參數(shù)和實(shí)際駕駛員的狀況模擬一個(gè)實(shí)際的會(huì)車情況,計(jì)算出會(huì)車過程中眩目程度的變化,做出曲線并分析具體的變化規(guī)律。
[Abstract]:At night, many traffic accidents are caused by headlights causing dizziness to the other driver. How to prevent glare has become an important problem of automobile safety. There are many factors that influence the dazzling of automobile headlights. People, cars, roads and environment all affect the degree of headlights dazzling. However, most of the current control strategies for anti-glare use the method of controlling single-factor variables, but the accuracy of judging the degree of glare by only controlling single-factor is low. In this paper, the influence of vehicle running and road alignment on dazzle is considered comprehensively, and the influence law of each factor on dazzle is analyzed. The influence law of vehicle running and road alignment factors on dazzle in this paper can conform to the development trend of automobile informatization in the future, and exchange physical information between each other in the process of meeting the vehicle. According to the comprehensive information, the vehicle processor determines whether the headlight causes dazzling to the other driver, thus gives the appropriate light type and provides a good lighting environment for the drivers of both sides. The law analyzed in this paper can be used as the theoretical basis for judging whether the headlamp is dazzling or not and for controlling the turning angle of the adaptive headlamp so that its light form will not be dazzling. In the aspect of data fitting, the relationship between the long half axis and short half axis of the approximate ellipse of the equivalent light intensity curve of the least square method is used to fit the relationship, and the correlation coefficient is verified to meet the requirements. The model is established on the basis of the univariate first order function. Finally, the fitting function is determined by comparing the cubic spline interpolation curve, and the relationship between the short half axis of the ellipse and the light intensity represented by the ellipse is fitted. Compared with the DataFit software and the least square method, the DataFit software is used to fit the relationship model. In the analysis of the influence of the factors under driving on the horizontal straight road on the dazzle, the other factors are not changed, the degree of dazzling at different ages in the process of meeting the vehicle is obtained, and the curve analysis is made to analyze the influence of the driver's age on the dazzle. Then the influence law of the driver's relative sight height and lateral distance on the dazzle is analyzed in turn. Finally, a real meeting situation is simulated, and the change rule of the dazzling degree in the course of the vehicle meeting is analyzed. In the analysis of the law of dazzling driving on the turning highway with transverse slope, the highway with transverse slope is assumed to be the inner wall of the conical body, the three-dimensional right-angle coordinate system is established, the coordinates of the two vehicles are determined, and the plane right-angle coordinate system is established. The coordinate of the vehicle in coordinate system is transformed into the coordinate system of equal intensity curve. According to the parameters in the highway design standard and the actual driver's condition, the paper simulates an actual meeting situation, calculates the change of the dazzling degree in the course of meeting the vehicle, makes the curve and analyzes the concrete changing law.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U491.25

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 莫玉和;淺談汽車前照燈防眩目技術(shù)及配光法規(guī)[J];廣西機(jī)械;1999年02期

2 張鐵軍;唐t$t$;米曉藝;吳玲濤;;雙車道與4車道公路安全特性對比分析[J];道路交通與安全;2008年06期

3 符飛躍,張旭芝;高速公路新型防眩設(shè)施結(jié)構(gòu)設(shè)計(jì)[J];華東公路;2000年06期

4 谷正氣,賀平;自由曲面前照燈近光配光的防眩目研究[J];湖南大學(xué)學(xué)報(bào)(自然科學(xué)版);2004年06期

5 景天然;何云峰;王家章;張金水;;司機(jī)視線高度與道路孨曲線最小半徑的確定[J];華東公路;1984年03期

6 王華;;機(jī)動(dòng)車交匯時(shí)燈具炫目性的討論[J];摩托車技術(shù);2007年10期

7 ;LED在汽車前照燈中的應(yīng)用[J];汽車與配件;2006年07期

8 梁玉娟;;彎道路段車輛安全行駛的速度要求淺析[J];欽州學(xué)院學(xué)報(bào);2011年03期

9 唐強(qiáng);薛志杰;石平;閆宏偉;;高速公路中央分隔帶樹木種植設(shè)計(jì)與行駛車輛防眩原理及其公式構(gòu)建[J];沈陽農(nóng)業(yè)大學(xué)學(xué)報(bào);2005年04期

10 陸健;;最小二乘法及其應(yīng)用[J];中國西部科技;2007年19期

相關(guān)博士學(xué)位論文 前2條

1 代磊磊;路網(wǎng)交通事故動(dòng)態(tài)分析及預(yù)警方法研究[D];哈爾濱工業(yè)大學(xué);2010年

2 祝站東;基于道路環(huán)境的雙車道公路運(yùn)行速度模型研究[D];北京工業(yè)大學(xué);2011年

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本文編號(hào)：1824625