The control strategy of engine has been studied . the cmac ( cerebellar model articulation controller ) is used on electronic controlled lpg fuelled engine ' s optimizing , it is involved that the air fuel ratio and ignition timing 对发动机的控制策略进行研究，首次将小脑模型神经网络( cmac )用于电控lpg发动机的优化控制，研究分析其用于空燃比控制和点火提前角控制的基本方法。
The results indicate that the fuel delivery advance angle corresponding to the lowest fuel consumption of diesel engine is as similar as that of e30 engine . with the increase of fuel delivery advance angle , nox emission enlarges and smoke reduces 结果表明： e30混合燃料发动机的最低燃料消耗率对应的供油提前角与原柴油机相当，随供油提前角增大， e30的no _ x排放增加，但烟度降低。
A multizone p - pdf is applied to calculate the instantaneous rate of no _ ( x ) with high turbulent conditions in the lpg engine . 4 . construct an experimental spark - ignited premixed - charge lpg single fuel engine with universal wide range exhaust gas oxygen sensor 4建立稀氧传感器反馈控制的lpg发动机实验系统，准确控制发动机的实验参数和工况，得到不同空燃比、不同点火提前角、不同燃料成分时发动机的动力性能和排放性能。
When the diesel engine fueled with emulsified fuels containing methanol from 10 to 20 percent with the angles of injection adjusted , the performances of it can be improved , thermal efficiency is raised from 5 to 8 percent , temperature of exhaust and smoke are descended 如果对供油提前角进行适当的调整，柴油机燃用含有10 20甲醇的乳化液时，其性能得到改善，折合燃油消耗率降低5 8 ，发动机的排气温度和烟度均下降。
Fasten bolt to fix distributor . regulate ignition timing , start up engine and make fine regulation to ignition advance angle at the time of idling speed to make engine to be stable while idling . acceleration should be sensitive and powerful which means a complete regulation is done 调点火正时，启动发动机，在怠速时对点火提前角做细微调整，使发动机在怠速阶段平稳，加速时应明显感到快捷有力，即调整完毕，拧紧分电器紧固螺栓。
The main achievements are as follows : 1 it ' s for the first time to extensively investigate effects of main combustion system parameters such as plunger diameter , plunger stroke , fuel delivery advanced angle , valve opening pressure of nozzle on performance of dme engine . the parameters are optimized 取得的主要成果有： 1系统地研究了油泵柱塞直径和行程、供油提前角、喷嘴启喷压力等发动机燃烧系统主要参数对二甲醚发动机性能的影响，优化了这些参数。
In this experiment , adjusting the throttle to the specific position , and letting engine rotary speed change from the lowest to the highest , at the same time , the data of the water temperature , the fuel temperature , the air press and the rotary speed can be noted . moreover , we can measure the fuel quantity and the ignition angle 实验中，调节节气门在特定位置，并让发动机的速度依次从最低变化到最高，同时记录水温、油温、进气压力和转速等数据，还可以测出相应的喷油量、点火提前角。
We have been closely cooperated with beijing institute of technology , one of the most prestigious university in china , and co - developed ion vacuum plating technique , multi - arc tin coating technique and twin - eccentric automatic fuel supply advancer in the recent years successively , and acquired many patents . the sag and scda series fuel supply advancer manufactured in one of our branch company : has adopted the advanced twin - eccentric blocks structure , thoroughly changed the traditional structurearc block , sliding block . the angle of advance is very accurate and precise , also perfect at position resume 由本总公司提前器厂生产的sag scdm两大系列供油角度自动提前器，改变了目前提前器市场上的传统结构，用先进的双偏心式结构，代替了二十年一贯制的弧形块滑块式结构，具有提前角特别灵敏，恢复性好，怠速运转无噪音等优点，克服了提前器摆动大漏油等常见缺陷。
A new calculation method for optimizing diesel engine performance , called nonlinear regression - mess method , is put forward . in this paper , 25 groups of simulated values are calculated from the diesel engine working model , specific fuel consumption , peak pressure , rate of pressure rise , nox and peak temperature are fitted into explicit function about compression ratio and fuel injection advance angle 本文利用柴油机工作过程模型，得出25组模拟计算数据，利用非线性回归将油耗、最大爆发压力、压力升高率、 no _ x浓度及最高燃烧温度拟合成压缩比和喷油提前角的显函数，并用网格法进行优化，用c语言编制了优化计算程序，得出最佳的压缩比和喷油提前角，使其优化匹配。
The primary performance target by which the superior and inferior quality of the ignition system can be judged includes ignition advance angle 、 unload voltage of secondary coil and ignition energy , etc . all of these can acquire through measuring the characteristic parameter of magneto 判断点火系统品质优劣的主要性能指标有点火提前角、和点火能量等。这些性能指标都可以通过磁电机特性参数来获得。本课题来源于嘉陵工业股份公司检测站的实际应用，针对摩托车磁电机进行多参数实时检测的一套检测系统。
