基于ARM9的車用磁流變減振控制系統(tǒng)畢業(yè)設(shè)計


摘   要
　　　汽車減振器是車輛行駛過程中保證駕駛?cè)藛T舒適性的重要部件?；诖帕髯円旱陌胫鲃訙p振器是一種新型減振裝置，由于具有阻尼可控性、響應(yīng)迅速、能耗低等特點而在半主動懸架應(yīng)用中得到重視，并且已經(jīng)成為各大汽車公司的研究熱點。
　　　本文以汽車減振器為研究對象，設(shè)計了車用磁流變減振器的控制系統(tǒng)，該控制系統(tǒng)基于三星公司的S3C2410微控制器而設(shè)計，其內(nèi)核為ARM920T。整個系統(tǒng)包括軟、硬件兩部分的設(shè)計。硬件設(shè)計包括A/D轉(zhuǎn)換電路，信號調(diào)理電路，ARM9最小系統(tǒng)的組成，電流驅(qū)動電路。軟件部分包括A/D轉(zhuǎn)換子程序，PWM波子程序以及模糊控制算法子程序。模糊控制方法具有結(jié)構(gòu)簡單，控制方便，適用性強等優(yōu)點。
關(guān)鍵詞：磁流變減振器、半主動、ARM、模糊控制

The  Control  System  Designing  of  Automotive Magneto-theological(MR)  Shock  Absorber
Abstract
　　　Automotive shock absorber is an important component of the traffic process to ensure the comfort of the driver.Magneto-rheological fluid-based semi-active damper is a new type of damping device.Due to damping controllability, fast response, low energy consumption,it receives attention in the application of the semi-active suspension. And it has become the research focus of the major car companies.
　　　In this paper, on the basis of the automotive shock absorber,a control system for vehicle magnetorheological damper is designed.The control system is based on the samsung S3C2410 micro controller .ARM920T is selected as its core.The whole system includes two parts of the hardware and software.The designing for hardware includes the A/D converter circuit, signal regulated circuit, ARM9 minimum system composition and current driver circuit.The part of software includes A / D conversion subroutine, the subroutine of PWM wave and fuzzy control algorithm subroutine.The advantages of Fuzzy are simple in structure,control convenience,wide applicability etc.
Key words: MR Damper，ARM, Semi-active，fuzzy control

目 錄
摘   要 III
Abstract IV
1 緒論............................................................................................................................1
1.1課題研究背景意義 1
1.2車用磁流變減振技術(shù)國內(nèi)外發(fā)展現(xiàn)狀 1
1.3課題研究的主要內(nèi)容 2
2 車用磁流變減振控制系統(tǒng)方案分析 4
2.1磁流變減振器工作原理 4
2.2系統(tǒng)方案分析 4
2.3系統(tǒng)總體設(shè)計方案 7
3磁流變減振器系統(tǒng)硬件設(shè)計 8
3.1傳感器的選擇 8
3.2信號調(diào)理電路 9
3.4ARM控制體系 12
3.5電流驅(qū)動電路 15
4磁流變減振器控制系統(tǒng)軟件設(shè)計 18
4.1車用磁流變減振控制系統(tǒng)軟件功能分析 18
4.2主程序流程圖 18
4.3子程序設(shè)計 20
4.3.1模糊控制算法模塊 20
4.3.2 A/D轉(zhuǎn)換子程序流程圖 23
4.3.3PWM波形生成子程序 23
5總結(jié) 25
5.1總結(jié) 25
5.2展望 25
參考文獻 26
致謝 28
附錄 29
主程序 29
模糊控制算法子程序 30
A/D轉(zhuǎn)換和PWM子程序 32
系統(tǒng)配置頭文件 34
模糊控制算法頭文件 37
A/D轉(zhuǎn)換和PWM頭文件 40