【正文】 .......8 .......................................................................................................................................8 ...............................................................................................................................................9 ......................................................................................................................................................93 ETC系統(tǒng)控制策略的研究與實(shí)現(xiàn) ...................................................................................................................11 ..............................................................................................................................11 ..........................................................................................................................11 ..................................................................................................................................12 ..................................................................................................13 PID控制與模糊控制的比較 ..............................................................................................................13 .......................................................................................................................13 ...............................................................................................................13 ................................................................................................................................15 .....................................................................................................................15 ............................................................................................................16 ....................................................................................................................................................174 ETC硬件系統(tǒng)設(shè)計(jì) ...........................................................................................................................................18 ETC硬件設(shè)計(jì)與方案設(shè)計(jì) ........................................................................................................................18 .............................................................................................................................18 .............................................................................................................................18 .............................................................................................................................19 ....................................................................................................................................19 ........................................................................................................................20 .....................................................................................................................20 A/D轉(zhuǎn)換芯片介紹 ..............................................................................................................................21 A/D轉(zhuǎn)換電路的設(shè)計(jì) ..........................................................................................................................21 A/D轉(zhuǎn)換器電路板設(shè)計(jì)注意事項(xiàng) ......................................................................................................22 ............................................................................................................................................22 .....................................................................................................................................23 MOSFET驅(qū)動(dòng)電路 .............................................................................................................................24 H橋電動(dòng)機(jī)驅(qū)動(dòng)電路 ..........................................................................................................................25 ............................................................................................................................................26 CAN總線通信電路 ............................................................................................................................26 RS232串口通信電路 ..........................................................................................................................27 ............................................................................................................27 .................................................................................................................27 .................................................................................................28 ....................................................................................................................................................285總結(jié) ...................................................................................................................................................................29 ............................................................................................................................................................29參考文獻(xiàn) .............................................................................................................................................................30致 謝 ...................................................................................................................................................................31附 圖 ...................................................................................................................................................................32中國(guó)地質(zhì)大學(xué)長(zhǎng)城學(xué)院2022屆畢業(yè)論文11緒論隨著汽車保有量的不斷增多，導(dǎo)致石油能源消耗的急劇增加，引起能源枯竭，油價(jià)上揚(yáng)。汽車制造商不得不改進(jìn)制造技術(shù)，開發(fā)新材料等，來減緩這些問題。至此，要使汽車的性能跟上時(shí)代的腳步，采用電子控制技術(shù)成為必然趨勢(shì)。發(fā)動(dòng)機(jī)控制主要包括:空燃比控制、點(diǎn)火正時(shí)控制、廢氣再循環(huán)控制、怠速控制、爆震控制、冷起動(dòng)和加速加濃控制、自診斷功能等。汽車電子控制技術(shù)開始于發(fā)動(dòng)機(jī)點(diǎn)火控制。系統(tǒng)設(shè)有冷起動(dòng)噴油器，故可改善低溫起動(dòng)性能。