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黑龍江工程學(xué)院本科生畢業(yè)設(shè)計 摘　　要 汽車設(shè)計工作基本可分為三個階段，不同階段要解決的主要問題也不一樣。整車的總體設(shè)計主要解決社會雪球轉(zhuǎn)化為汽車性能的問題，可認(rèn)為是第一階段；其次是汽車各子系統(tǒng)和總成的設(shè)計，主要解決汽車的功能和布置問題，可認(rèn)為是第二階段；最后是零部件的設(shè)計開發(fā)，主要解決強度、壽命和生產(chǎn)技術(shù)的問題，可認(rèn)為是第三階段。 本課題所研究的內(nèi)容是5噸輕型貨車的總體設(shè)計，也就是整車總布置。工作主要是解決社會需要轉(zhuǎn)化為汽車性能的問題，也就是汽車設(shè)計的第一階段。細(xì)分下來包括汽車形式的選擇、汽車主要參數(shù)的選擇、汽車主要總成部件的選擇、動力性計算、燃油經(jīng)濟性計算、汽車主要總成部件的布置、運動校核以及總布置圖的繪制。 本設(shè)計的目的是在滿足工況要求的動力性能基礎(chǔ)上，盡量實現(xiàn)提高燃油經(jīng)濟性和降低排放。 文中對于如何進(jìn)行汽車總布置設(shè)計進(jìn)行了說明。 關(guān)鍵詞: CA1050； 汽車總體設(shè)計；總布置；動力性計算；燃油經(jīng)濟性計算 ABSTRACT Automotive design work can be divided into three stages basically .Resolving main problem is different during the different stages. First stage: overall design is to resolve that social demand be converted into the problem of capability of car. Second stage: design of each subsystem and assembly resolve function and layout of car. Third stage: parts design resolves the problem of strength, life and production technology. This paper presents the overall design of 5t light truck. It resolves that social demand be converted into the problem of capability of car. It is the first stage. It includes the choice of auto form, main parameters, and main assembly parts, calculation of power , fuel economy and braking performance, layout of auto main assembly parts, sports check and drawing general arrangement. The content of design is to meet dynamic performance of working condition’ demand and try to increase fuel economy and decrease emission. This paper presents auto overall design. Key words: GHC1050; Auto overall design; General arrangement; Performance caculations; Calculations of fuel economy II