【正文】 d environment, strengthen to replace petroleum fuels, fuel gas development to clean fuel for cars with low emissions zero discharge current and future world has bee one of the major problems facing. High octane fuel gas LPG alternatives such as widely applied. The key problem is facing in conditions to improve the ignition system, electrical fire performance and reliability of work, so as to improve the efficiency and reduce the emissions of the , the subject to faw CA6GH L single fuel engine ignition control LPG system as the research object, by ems form, from the chemical properties, LPG engine ignition system in the study of LPG engine performance, the influence of different conditions in the current through the stability control, realizing the ignition and injection time to improve the realtime optimization engine performance existing LPG. in order to further enhance the ignition system, the electrical activity can work and the safety and reliability of the consideration of electronic ignition system, the design of electronic ignition Angle closure, primary loop circuit controlled function resistance control circuit, parking electricity protective circuit and control circuit is the primary current stability. the design requirements of highenergy spark rapid burning system of double. The new system includes cylinder head (firebox pression ratio, double spark position, the bustion chamber airflow anization, etc.), two sets of independent variable ignition energy highenergy ignition system. Through the electronic control unit (ECU and control strategy according to the condition, provides engine variable synchronous and asynchronous double spark ignition. LPG liquefied petroleum gas bus engine ignition system working principle and control methods, bining various sensor signals on engine microcontroller program to set the precise moment engine ignition control. use MATLAB simulation software to engine for experimental analysis to determine the power, the main engine power, torque and gas consumption by bus, and for each gear operation condition to verify the simulation of LPG highenergy ignition engine asynchronous double the. Key words ： LPG rapid fire engines， Fast bustion system， electronic ignition system III 目 錄 摘要 ..............................................................................................................................................Ⅰ Abstract .......................................................................................................................................Ⅱ 第一章 緒論 ....................................................................................................................................1 引言 .......................................................................................................................................1 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)的設(shè)計目的和意義 ......................................1 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)的設(shè)計內(nèi)容 ..................................................2 研究 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)的原理及其控制方法 ......................2 研究 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)硬件 與軟件 的設(shè)計與開發(fā) ..............2 設(shè)計與繪制 LPG 液化石油氣公交車發(fā)動機點火系統(tǒng)的典型機械結(jié)構(gòu)圖 ..................3 研究 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)的計算機仿真與分析 ......................3 本章小結(jié) ..................................................................................................................................4 第二章 研究 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)的原理及其控制方法 ...................5 基于 CA6GHL 電控 LPG 單燃料 發(fā)動機點火系統(tǒng)的工作原理及其控制方法 ................5 CA6GHL 電控 LPG 單燃料 發(fā)動機點火系統(tǒng)的工作原理及其控制方法 ....................5 LPG 發(fā)動機點火系統(tǒng)系統(tǒng)的組成與基本原理 ...............................................................7 LPG 發(fā)動機電子點火系統(tǒng)系統(tǒng)的組成與基本原理 .......................................................8 微機控制點火系統(tǒng)點火提前角的確定 ............................................................................9 發(fā)動機爆震的控制過程 ..................................................................................................11 基于微機控制發(fā)動機高能異步雙點火系統(tǒng)控制方法的提出 ......................................12 CA6GHL 電控 LPG 單燃料 發(fā)動機點火系統(tǒng)的閉環(huán)控制的原理 ...................................14 本章小結(jié) ...............................................................................................................................15 第三章 研究 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)硬件的設(shè)計與開發(fā) .......................17 基于 CA6GHL 電控 LPG 單燃料 發(fā)動機的系統(tǒng)結(jié)構(gòu)原理 ...............................................19 發(fā)動機的選擇 ..................................................................................................................20 基于 CA6GHL 電控 LPG 單燃料 發(fā)動機點火系統(tǒng)的硬件設(shè)計 .......................................21 LPG 發(fā)動機 電子點火系統(tǒng)的磁感應(yīng)信號發(fā)生器的組成及工作原理 ..........................22 LPG 發(fā)動機 電子點火器電路的設(shè)計與開發(fā) ..................................................................24 LPG 公交車發(fā) 動機燃燒室的選擇原則及其特性 ..........................................................26 IV 點火 方式對 LPG公交車發(fā)動機的燃燒過程的影響 ......................................................27 火花塞位置優(yōu)化及高能點火的優(yōu)點 ..............................................................................29 ECU的硬件結(jié)構(gòu)設(shè)計 ......................................................................................................30 設(shè)計與繪制 LPG 公交車發(fā)動機點火系統(tǒng)的典型機械結(jié)構(gòu)圖 .........................................33 LPG 發(fā)動機點火系統(tǒng) 總電路 圖的目的和意義 ..............................................................33 LPG 發(fā)動機點火 控制 系統(tǒng) 電路 圖的目的和意義 ..........................................................33 LPG 發(fā)動機燃燒室的 組成與尺寸的選擇 ......................................................................34 燃燒室的設(shè)計和 CAD圖紙的繪制 .................................................................................34 本章小結(jié) .................................................................................................................................34 第四章 研究 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)軟件的設(shè)計與開發(fā) .....................36 LPG 液化石油燃?xì)夤卉嚢l(fā)動機點火系統(tǒng)軟件的結(jié)構(gòu)原理 .......................