電動助力轉向（EPS）的設計與三維建模

機械設計制造及其自動化論文，論文編號:JX1332  論文字數(shù):11075.頁數(shù):24

摘  要
 由于動力轉向系統(tǒng)具有轉向操縱靈活、輕便、并可吸收路面對前輪產(chǎn)生的沖擊等優(yōu)點，自20世紀50年代以來在各國汽車上開始普遍應用�，F(xiàn)今液壓助力轉向器(HPS)是以內燃機作為動力的汽車助力轉向器的主流。但是傳統(tǒng)的HPS需要持續(xù)的能量消耗，降低了汽車的燃油經(jīng)濟性。同時其復雜的液壓系統(tǒng)具有助力特性不可調整、污染環(huán)境、維修不便等缺點。相比之下，20世紀80年代開始研究的汽車上的電能為動力的電動助力轉向系統(tǒng)(EPS)除具有傳統(tǒng)液壓助力轉向系統(tǒng)(IiPS)的優(yōu)點外，還具有助力大小可調、路感可調、環(huán)保、耗能低、維護方便等優(yōu)點，因此自20世紀80年代以來世界著名汽車廠商紛紛開始研究開發(fā)EPS，并取得了很大的進展。
 首先,對EPS進行了概述;其次,闡述了EPS的總體結構和工作原理,同時也詳細介紹了各個部件的作用及其原理;然后,對CATIA三維軟件的建摸過程進行了較詳細的介紹;最后談到了EPS的試驗規(guī)范問題.

關鍵詞：汽車  電動 轉向器

Abstract
 Because of the advantages such as the steering sensitivity,handiness, and absorbability of the impulse from the road the power steering system is widely used since 1950's. Now the Hydraulic Powering Steering (HPS) is still mainly used in the automobile drived internal-combustion engine. But it also needs the continuing consume of fuel to keep pump running so it reduces the economy of fuel .And its complex hydraulic system pollutes the environment,makes the repairing difficult and the features couldn't be adjusted conveniently. Compared with HPS, the Electric Powering Steering system (EPS) has its special characters, such as the adjustable features, environment-friendly, energy saving and convenient maintenance, so it is developed quickly since some world famous automotive companies begin to research the EPS powering steering in 1980's.
    The overall structure and working principle of the EPS was briefly described.Meanwhile,it detailed the function and principles of the all of every components; thirdly,the procession of mould buiding for three-dimensional software for CATIA;At the end,what standarded the test of EPS was speaken.
 
Key word:  Auto  Electric power  Diverter

目  錄
中文摘要 i
英文摘要 ii
目錄 iii
第一章     緒論 1
1.1  EPS的概述 1
1.2  EPS的簡介 2
第二章     電動助力轉向系統(tǒng)的總體設計 5
2.1   EPS系統(tǒng)結構和工作原理 5
2.2  EPS主要零部件設計及其工作原理 6
2.2.1  轉矩傳感器 6
2.2.2  車速傳感器 7
2.2.3  電動機 7
2.2.4  減速機構 8
2.2.5  電磁離合器 8
2.2.6  電子控制單元 8
第三章     EPS結構設計與三維建模 10
3.1   CATIA簡介 10
3.2   CATIA功能介紹 12
3.2.1  草圖功能介紹 12
3.2.2  基本零件設計 12
3.2.3  零件修飾和變換 12
3.2.4  裝配設計 12
3.3   EPS的結構設計 14
第四章     試驗規(guī)范 16
第五章     總結 21
參考文獻 R-1
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