后視鏡是駕駛員坐在駕駛室座位上直接獲取汽車后方、側方和下方等外部信息的工具。為了駕駛員操作方便,防止行車安全事故的發生,保障人身安全,各國均規定了汽車上必須安裝后視鏡,且所有后視鏡都必須能調整方向。
在夜間受到后車的前照燈照射時,后視鏡的反射光進入駕駛員的眼簾,易于造成炫目狀態,所以開發出防炫目內后視鏡。防炫目內后視鏡大致可以分為兩種:
(1)成本低且成為主流的截面為楔型的內后視鏡;
(2)從功能效用的觀點出發,僅在必要的景物時使用的采用了電控彩色發光元件或液晶元件的內后視鏡。
防眩(xuan)目電(dian)(dian)(dian)(dian)(dian)動后視鏡(jing)由1個特殊(shu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)化層(ceng)鏡(jing)面、2個光(guang)電(dian)(dian)(dian)(dian)(dian)傳感(gan)器(qi)(qi)以及電(dian)(dian)(dian)(dian)(dian)子控制(zhi)器(qi)(qi)組成。電(dian)(dian)(dian)(dian)(dian)子控制(zhi)器(qi)(qi)接收光(guang)敏二極管傳送(song)的(de)(de)燈(deng)光(guang)照射(she)強度信號(hao),如(ru)果后車燈(deng)光(guang)強于前車燈(deng)光(guang),電(dian)(dian)(dian)(dian)(dian)子控制(zhi)器(qi)(qi)將輸出一個電(dian)(dian)(dian)(dian)(dian)壓到鏡(jing)面,改(gai)變(bian)鏡(jing)面電(dian)(dian)(dian)(dian)(dian)化層(ceng)的(de)(de)顏色(se)(se)。這個電(dian)(dian)(dian)(dian)(dian)壓越(yue)高,電(dian)(dian)(dian)(dian)(dian)化層(ceng)顏色(se)(se)的(de)(de)改(gai)變(bian)越(yue)大。電(dian)(dian)(dian)(dian)(dian)化層(ceng)的(de)(de)顏色(se)(se)改(gai)變(bian)后,經(jing)過電(dian)(dian)(dian)(dian)(dian)動后視鏡(jing)反射(she)到駕駛(shi)員眼睛的(de)(de)光(guang)線就顯著減(jian)弱,不(bu)但(dan)不(bu)影響駕駛(shi)員的(de)(de)視力,反而提高了駕乘(cheng)車輛(liang)的(de)(de)舒(shu)適性和安(an)全性。
全(quan)新奧(ao)(ao)迪(di)(di)S7運(yun)動(dong)(dong)車型(xing)(xing)是(shi)“卓(zhuo)越性(xing)能”和(he)(he)“動(dong)(dong)感設(she)計”的代(dai)名詞。搭載(zai)奧(ao)(ao)迪(di)(di)全(quan)新的4.0升(sheng)(sheng)V8 TFSI雙(shuang)渦輪增(zeng)(zeng)壓燃油直噴(pen)發動(dong)(dong)機,動(dong)(dong)力輸出高達309千瓦(420馬力),由于采用了(le)全(quan)新的“汽缸按需運(yun)行”技術,每(mei)百公(gong)里平均油耗分(fen)別只有9.6升(sheng)(sheng)和(he)(he)9.7升(sheng)(sheng)。先(xian)進的底盤、輕(qing)量化的車身(shen)和(he)(he)精致的內(nei)飾,使全(quan)新奧(ao)(ao)迪(di)(di)堪稱運(yun)動(dong)(dong)型(xing)(xing)汽車市(shi)場(chang)中的完美之作(zuo)。S7基于奧(ao)(ao)迪(di)(di)A7研發,這也(ye)是(shi)這款車系的第(di)一代(dai)車型(xing)(xing)。S7 Sportback與普通奧(ao)(ao)迪(di)(di)A7Sportback雖然在(zai)外觀上(shang)的改變不算(suan)大(da),但(dan)是(shi)卻在(zai)原本奢華的基礎上(shang)加(jia)(jia)入(ru)一些陽剛的肌肉線條(tiao),展現出十足的運(yun)動(dong)(dong)性(xing)能氣(qi)息,包(bao)括前保險杠增(zeng)(zeng)加(jia)(jia)了(le)下擾流、左右下進氣(qi)格(ge)柵也(ye)改為(wei)蜂巢狀,并增(zeng)(zeng)加(jia)(jia)車身(shen)側(ce)裙、后(hou)保險杠部分(fen)也(ye)相同增(zeng)(zeng)加(jia)(jia)下擾流,排氣(qi)尾(wei)管則改為(wei)雙(shuang)邊四出的設(she)定(ding),同時標配19英寸鋁合金輪轂,完全(quan)以(yi)性(xing)能標榜出S7 Sportback的頭銜。
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