目 錄
1 汽車發(fā)展史·················································································································· 1
1.1 汽車的遠祖············································································································ 1
1.2 蒸汽汽車的誕生····································································································· 3
1.3 內(nèi)燃機的發(fā)明········································································································ 5
1.4 柴油機的誕生········································································································ 6
1.5 內(nèi)燃機汽車的誕生·································································································· 8
1.6 汽車大量生產(chǎn)時期·································································································· 9
1.7 世界主要汽車生產(chǎn)國的發(fā)展··················································································· 12
2 汽車基本結(jié)構(gòu)及原理································································································· 18
2.1 發(fā)動機的構(gòu)成及工作原理······················································································ 18
2.2 汽車底盤的構(gòu)成及工作原理··················································································· 25
2.3 汽車車身及電氣設(shè)備····························································································· 35
3 汽車造型設(shè)計············································································································ 36
3.1 汽車造型的演變··································································································· 36
3.2 影響汽車造型的因素····························································································· 43
3.3 汽車造型色彩······································································································· 44
3.4 空氣動力學(xué)的基本概念·························································································· 46
3.5 風(fēng)格各異的汽車造型藝術(shù)······················································································ 47
4 汽車知識···················································································································· 51
4.1 概念車················································································································ 51
4.2 汽車名人············································································································· 58
4.3 世界五大汽車展··································································································· 68
4.4 世界十大汽車城··································································································· 71
4.5 汽車車標(biāo)············································································································· 75
4.6 汽車運動············································································································· 90
5 中外汽車公司············································································································ 98
5.1 中國第一汽車集團公司·························································································· 98
5.2 東風(fēng)汽車集團股份有限公司················································································· 106
5.3 上海汽車集團股份有限公司················································································· 110
5.4 中國其他汽車公司······························································································ 111
5.5 國外主要汽車公司······························································································ 116
6 汽車技術(shù)的發(fā)展······································································································· 133
6.1 現(xiàn)代汽車技術(shù)的發(fā)展··························································································· 133
6.2 現(xiàn)代汽車技術(shù)的發(fā)展方向—— 從汽車展看汽車技術(shù)的發(fā)展趨勢································· 136
7 二手車鑒定及評估··································································································· 142
7.1 汽車鑒定評估基本理論························································································ 142
7.2 二手車技術(shù)狀況鑒定··························································································· 145
7.3 二手車評估的基本方法························································································ 153
參考文獻························································································································ 157
1.1 汽車的遠祖
在原始社會,人們發(fā)現(xiàn)將圓木置于重物的下面,拖著重物行走比較省力,這被稱作早期的木輪運輸;后來人們又發(fā)現(xiàn)直徑大的木輪速度比較快,于是木輪的直徑越來越大,逐漸演變?yōu)閹лS的輪子,這便形成了車輪的雛形。車輪是中華民族的祖先首先發(fā)明的,人類歷史上的第一部車輛,也是在中華民族祖先靈巧的雙手和智慧的開拓下,最早駛上了歷史的舞臺。
中國古代神話中,有黃帝(也叫軒轅氏)造車之說。軒是古代一種有圍棚的車,轅是車的基本構(gòu)件。車的發(fā)明,第一次為人類創(chuàng)造了運輸工具,大大減輕了人類搬運工作的負擔(dān),也擴大了人類交往的距離;車的發(fā)明,具有劃時代的意義,它證明人類已真正進入了文明的軌道(《淮南子》說:黃帝造車;《古史考》曰:黃帝作車,至少昊始駕牛)。
據(jù)說5 000多年前,黃帝時代就已經(jīng)發(fā)明了指南車,當(dāng)時黃帝曾憑著它在大霧彌漫的戰(zhàn)場上指示方向,戰(zhàn)勝了蚩尤。
另外據(jù)史料記載,公元前2 000多年的夏初大禹時代,大夫奚仲,是中國車子的創(chuàng)造者,也是世界上第一輛車子的發(fā)明者(《呂氏春秋·君守篇》說:奚仲作車;《淮南子·修務(wù)篇》亦曰:奚仲為車)。
公元前1600年的商代,中國的車工技術(shù)已達到了相當(dāng)高的水平,能制造出相當(dāng)高級的兩輪車,采用輻條制作車輪,外形結(jié)構(gòu)精致華美,做工也十分復(fù)雜(見圖1.1)。
西周時期(公元前771年)馬車已經(jīng)很盛行了。各諸侯國之間由于頻繁的戰(zhàn)爭,馬車便被納入了戰(zhàn)爭的行列,在當(dāng)時馬車是代表一個國家強盛的標(biāo)志。
陜西臨潼秦始皇帝陵出土的戰(zhàn)車樣式,代表了春秋戰(zhàn)國時期(公元前770—前221年)車輛的制造水平。其外形華美,做工精致,是當(dāng)時馬車的典范(見圖1.2)。
圖1.1 2005年發(fā)掘的商代晚期車馬坑 圖1.2 秦始皇帝陵出土的戰(zhàn)車
據(jù)考證,三國時期魏國的于青龍三年(235年)創(chuàng)造了指南車。馬鈞所造的指南車除用齒輪傳動外,還有自動離合裝置,是利用齒輪傳動系統(tǒng)和離合裝置來指示方向。雖有記載,但造法失傳。東晉安帝義熙十三年(417年),劉裕北伐進兵長安,后秦姚興使令狐生制造指南車。北魏的郭善明也曾研制過,未成,扶風(fēng)人馬岳又造,垂成,善明鴆殺之。南朝的又發(fā)明一次,在《南齊書·祖沖之傳》中記載:初,宋武平關(guān)中,得姚興指南車,有外形而無機巧,每行,使人于內(nèi)轉(zhuǎn)之。升明中,太祖輔政,使沖之追修古法。沖之改造銅機,圓轉(zhuǎn)不窮,而司方如一,馬鈞以來未有也。在特定條件下,車子轉(zhuǎn)向時木人手臂仍指南。
《宋史·輿服志》則詳細地記載了和吳德仁所造指南車的結(jié)構(gòu)和技術(shù)規(guī)范,成為世界史上最寶貴的工程學(xué)文獻。燕肅的指南車是一輛雙輪獨轅車,車上立一木人,伸臂指南(見圖1.3)。車中,除兩個沿地面滾動的足輪(即車輪)外,尚有大小不同的7個齒輪。車輪轉(zhuǎn)動,帶動附于其上的垂直齒輪(稱附輪或附立足子輪),該附輪又使與其嚙合的小平輪轉(zhuǎn)動,小平輪帶動中心大平輪。指南木人的立軸就裝在大平輪中心。當(dāng)車轉(zhuǎn)彎時,只要操作車上離合裝置,即竹繩、滑輪(分別居于車左或車右的小輪)和鐵墜子,就可以控制大平輪的轉(zhuǎn)動,從而使木人指向不變。例如,當(dāng)車向右轉(zhuǎn)彎,則其前轅向右,后轅必向左。此時,只要將繞過滑輪的后轅端繩索提起,使左小平輪下落,從而與大平輪離開,同時使右小平輪上升,從而與大平輪嚙合,大平輪就隨右小平輪而逆轉(zhuǎn)。由于各個齒輪匹配合理,車輪轉(zhuǎn)向的弧度與大平輪逆轉(zhuǎn)弧度相同,故木人指向不變。
圖1.3 指南車
其后,吳德仁鑒于燕肅所制的指南車不能轉(zhuǎn)大彎,否則指向就失靈這一大缺點,重新設(shè)計制作指南車。吳德仁所造指南車的基本原理與燕肅所造的一致,只是在附設(shè)裝置方面較為復(fù)雜。車分上下兩層,上層除木人指南外,繞木人還有2只龜、4只鶴和4個童子。上層13個相互嚙合的齒輪就是為它們設(shè)的。下層的齒輪裝置與結(jié)構(gòu)如前所述。這種繩輪離合裝置,保證了車轉(zhuǎn)大彎也不影響木人的指向。
指南車是利用差速齒輪原理制造的,是中國古代的一項重要發(fā)明創(chuàng)造,而歐洲直到19世紀(jì)才發(fā)現(xiàn)和運用這一原理,比中國晚了一千多年。指南車的創(chuàng)造標(biāo)志著中國古代在齒輪傳動和離合器應(yīng)用上已取得很大成就。指南車是古代一種指示方向的車輛,也是古代帝王出門時,作為儀仗的車輛之一,以顯示皇權(quán)的威嚴與奢華。