Whether the crank angle corresponding to the second derivative maximum value of net pressure was at top dead center could be used to estimate the optimal spark advance angle.
由净压力2次导数最大值所在曲轴转角是否在上止点可以判断发动机是否处于最佳点火提前角下工作,通过与由发动机输出扭矩确定的最佳点火提前角相比较,证明净压力2次导数最大值方法可以精确地确定天然气掺氢发动机的最佳点火提前角。
The spark advance angle was controlled by the knock index and it make the engine work in the trace knock level.
通过余弦形状的PVDF薄片,设计出具有紧凑结构的振动传感器,并设计了实用的电荷放大电路,最后用其来检测发动机的爆震点,从而对发动机点火提前角进行控制,使发动机工作在轻微爆震状态,通过实验表明PVDF振动传感器测量简单、更方便、更准确,经济性和动力性得到了提高。
The control principle of spark advance angle was analyzed.
分析了点火提前角的控制原理,通过试验研究了起动过程中不同冷却水温度下混合动力发动机点火提前角的修正对HC排放、催化剂起燃特性以及转化效率的影响规律,并对基于催化剂起燃特性的点火提前角修正值进行了重新标定。
Modeling and analysis of ignition advance angle of automobile engine;
汽车发动机点火提前角建模分析
On this basis it makes some study on the combustion process of hydrogen-fueled IC engine by changing the ignition advance angle and equivalence ratio of the model.
在此基础上,进行了点火提前角和燃空当量比对氢内燃机燃烧过程的影响研究,为合理组织氢内燃机的燃烧过程研究提供了依据。
The experiment results showed that,the CO emission was greatly influenced by fuel air ratio,ignition advance angle,intake absolute pressure and fuel component,the HC emission was reduced with the increase of hydrogen mixing ratio,the influence of ignition advance angle on HC emission was decreased when the intake absolute pressure was increased,and the NOx emission was i.
试验结果表明,CO的排放浓度受燃空当量比、点火提前角、进气管绝对压力和燃料成分的影响较大;HC排放浓度有随掺氢比的增大呈降低的趋势,提高进气管绝对压力,点火提前角对HC排放浓度的影响减弱;天然气掺氢气后NOx排放升高。
Through establishing the numerical model of natural gas engine-driven heat pump system,the runtime characteristics of natural gas engine and heat pump in heating conditions are analyzed by changing the advance ignition angle,excess air ratio,compression ratio,and engine speed.
通过建立天然气发动机驱动热泵系统的数学模型,研究了供热工况下,点火提前角、压缩比、过量空气系数、发动机转速等参数对天然气发动机及整个热泵系统运行性能的影响,为天然气发动机的优化设计提供一定的理论依据,并且预测了燃气热泵的性能,证明了该系统具有较好的部分负荷特性。
Through establishing the numerical model of natural gas engine-driven heat pump system, the runtime characteristics of natural gas engine and heat pump in cooling conditions are analyzed by changing the advance ignition angle, excess air ratio, compression ratio, engine speed.
通过建立天然气发动机驱动热泵系统的数学模型,研究了制冷工况下,点火提前角、压缩比、过量空气系数、发动机转速等参数对天然气发动机及整个热泵系统运行性能的影响,为天然气发动机的优化设计提供一定的理论依据,并且预测了燃气热泵的性能,证明了该系统具有较好的部分负荷特性。
Through establishing the numerical model of natural gas engine-driven heat pump system,the runtime characteristics of natural gas engine and heat pump in heating conditions are analyzed by changing the advance ignition angle,excess air ratio,compression ratio,and engine speed.
通过建立天然气发动机驱动热泵系统的数学模型,研究了供热工况下,点火提前角、压缩比、过量空气系数、发动机转速等参数对天然气发动机及整个热泵系统运行性能的影响,为天然气发动机的优化设计提供一定的理论依据,并且预测了燃气热泵的性能,证明了该系统具有较好的部分负荷特性。
minimum advance for best torque (MBT)
最大扭矩的最小点火提前角
SA Control Using Neural Network Based on MFB;
基于MFB的点火提前角神经网络控制
A Measuring and Controlling System of Ignition Advance for Gasoline Engines
汽油发动机点火提前角测量与控制系统
CNG/Gasoline Dual-Fuel Vehicles Automatic Spark Advance Angle Adjustment
CNG/汽油双燃料汽车点火提前角的自动调整
Design of Noncontact Magneto Ignition Advance Angel and Three-wire Set Discharge Tester
无触点磁电机点火提前角与三针放电测试仪的设计
Investigation into Influence of Ignition Advance Angle on Emissions of CO from a Low-power Engine;
点火提前角对小功率LPG发动机CO排放影响的研究
Soft-Measuring Model of Time Difference about Spark-Ignition Advanced Angle Based on Fuzzy Control and Neural Networks Theory
基于模糊神经网络的点火提前角时间差软测量模型
deceleration spark advance control
减速点火提前控制装置
vacuum-controlled ignition advance
真空控制式点火提前
magneto advance control
磁电机点火提前调整
vacuum advance control valve
真空点火提前控制阀
vacuum automatic spark advance device
真空式自动提前点火装置
The ignition-distributor vacuum-advance mechanism advances the spark during part-throttle operation.
分电器点火真空提前装置在节气门部分开启期间，使火花提前发出。
Ignition timing must advance as rpm increases.
随著引擎转速的增加，点火正时必须提前。
fuel injection retarding device
供油提前角推迟装置
The ignition of fuel in an internal - combustion engine before the spark passes through the fuel, resulting from a hot spot in the cylinder or from too great a compression ratio for the fuel.
提前点火由内燃机中的火星穿过燃料之前的燃烧，是因油缸热点过高或对燃料的过大压缩比造成的
Method of Angles Picked-up of Corners in Images Based on Radon Transform
基于Radon变换的图像角点角度提取算法
Problems of Micro-oil Ignition of Boiler in Shajiao C Power Station
沙角C电厂锅炉微油点火存在的问题