中英文文献翻译-电子控制燃料喷射系统
电子控制燃油喷射系统

3.电控燃油喷射系统(EFI)的现状和未来
• 1)、电子控制燃油喷射从单点式发展到多点式,到汽油直接喷射技术。 • 汽油直接喷射技术是用喷油量控制动力输出。在日本三菱、丰田和日产的一些发动机 上应用。欧洲的一些汽车公司如德国大众、法国雷诺等也在发展之中。可以说,电控 燃油直喷式发动机将成为21世纪汽车发动机的主流。 • 2)、汽油机点火和管理系统 电子控制的无触点点火系统。 • 3)、汽油机的可变气门定时和升程系统(TEC系统) 以本田为代表。 • 4)、柴油机的高压共轨喷射和可预喷的泵喷嘴技术 将少部分燃油预先喷进气缸, 这样便大幅度降低了燃烧噪声,甚至可以与汽油机相媲美。 • 在欧洲,截止到2000年,已经有近30%的轿车采用柴油机作动力,100公里仅耗油3 升。 • 5)、喷嘴截面可调的增压器 欧美的柴油机约95%都采用废气涡轮增压,但是增压 器自身的质量使加速响应和低速性能受到影响,造成低速扭矩下降、排烟增加。使用 变截面喷嘴技术,低速时减少喷嘴截面减小排气阻力,从而使发动机的扭矩特性得到 大幅度提高,废气排放品质也相应得到改善。 • 6)、废气再循环技术 • 7)推广发动机燃料向多样化发展成为可能 • (1)醇类作为燃料主要有乙醇和甲醇。甲醇由煤和天然气生产。 • (2)天然气 主要成分是甲烷,作为车用燃料是完全可以的。 5 • (3)植物油 主要是菜子油。 • (4)人造汽油和柴油 由煤转化为汽油和柴油。
• 世界上领先的电子控制燃油喷射系统为5气门技术、可变配气相位和可变进 气管技术 ,以本田为代表。
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2.电子控制燃油喷射系统(EFI)的优点
• 1)电子控制燃油喷射系统在进气系统中,没有象化油器供油那样 有喉管部位,其能充分利用吸入空气的惯性增压,使进气压力损失 小,降低进气的温度,提高了发动机的充气系数,增大充气量。 • 2)由于进气的温度较底,使得震爆燃烧得到了有效控制,可以采 用较高的压缩比,以提高发动机的效率。 • 3)对混合气体的空燃比和点火提前角进行精确控制,特别是对过 渡工况,例如起动喷油和加速加浓控制等,是发动机在任何工况下 都处于最佳工作状态。 • 4)可采用多点汽油喷射系统,混合气能均匀地分配到各个气缸, 各个气缸的做功能力均匀一致,发动机运转更加平稳。 • 5)燃油喷射系统配以高能电火装置,发动机变可以燃用稀薄的气 体。 • 6)减速断油功能,亦能降低排放,节省燃油。 • 电子控制燃油喷射装置的缺点就是成本比高,故障时以修复,但是 与它的运行经济性和环保性相比,这些缺点是可以忽略的。再者, 4 电子控制燃油喷射装置只是较好地解决了汽油的的控制和燃烧更合 理和更优化,使排放状况得到改善。在气缸的排气口与消声器之间 安装一个三元催化器净化装置,使CO和HC被氧化成H2O和CO2,
柴油发动机喷射系统外文文献翻译、中英文翻译、外文翻译

柴油发动机喷射系统外文文献翻译、中英文翻译、外文翻译In the past five years。
there has been a XXX。
with the most significant change being the use of common rail XXX n diesel engines。
which is now receiving increasing n。
While there is also a trend towards direct XXX engines。
this XXX。
such as air n。
XXX.Keywords: fuel supply system。
common rail system。
XXX.The most basic n of any fuel oil supply system is to XXX。
XXX increase in vehicle n requirements。
precise control of the system has XXX。
the fuel oil supply system should not only change the cycle oil but also adjust the XXX.In the mid-90s。
carburetor XXX。
but the control aspect was not accurate。
After many improvements。
the carburetor was able to control each XXX and full XXX。
XXX。
XXX。
and XXX.XXX was common in the early 90s。
timing XXX improvement。
This led to the development of XXX driving。
pushing forward the European XXX.From the fuel system's point of view。
电控燃油喷射系统名词解释

电控燃油喷射系统名词解释摘要:一、电控燃油喷射系统的概念与原理二、电控燃油喷射系统的主要组成部分三、电控燃油喷射系统的工作过程四、电控燃油喷射系统的优点与缺点五、如何正确使用和维护电控燃油喷射系统正文:电控燃油喷射系统(Electronic Fuel Injection,简称EFI)是一种通过电子技术实现燃油精确喷射的技术,广泛应用于汽车、摩托车等内燃机领域。
相较于传统的化油器,电控燃油喷射系统具有更高的燃油利用率、更低的排放污染和更佳的性能表现。
一、电控燃油喷射系统的概念与原理电控燃油喷射系统通过发动机控制单元(ECU)对燃油喷射量、喷射时机和喷射速度进行实时控制,以实现最佳燃烧效果。
系统主要由发动机控制单元、燃油泵、喷油器、空气流量计、氧传感器等组成。
二、电控燃油喷射系统的主要组成部分1.发动机控制单元(ECU):负责接收各种传感器信号,计算燃油喷射量,并向喷油器发出指令。
2.燃油泵:将燃油从油箱输送到发动机燃烧室。
3.喷油器:根据ECU的指令,将燃油以雾化形式喷射到进气道或燃烧室内。
4.空气流量计:监测进入发动机的空气质量,为ECU提供燃油喷射的参考依据。
5.氧传感器:检测排气中的氧含量,反馈给ECU,用于调整燃油喷射量和点火时机。
三、电控燃油喷射系统的工作过程1.发动机启动:ECU根据曲轴位置传感器信号,控制喷油器喷射燃油。
2.怠速控制:ECU根据空气流量计和氧传感器信号,调整燃油喷射量,保持发动机稳定运转。
3.加速响应:ECU收到加速踏板信号,增加燃油喷射量,使发动机输出功率提高。
4.负载变化响应:ECU根据氧传感器信号,实时调整燃油喷射量,保持燃烧室内燃油与空气的混合比例。
四、电控燃油喷射系统的优点与缺点优点:1.提高燃油利用率,降低油耗。
2.减少排放污染,环保性能好。
3.发动机性能稳定,驾驶舒适度提高。
4.易于实现发动机的智能化控制。
缺点:1.系统复杂,维修成本相对较高。
2.对燃油品质要求较高,否则容易导致喷油器堵塞。
7.汽油喷射系(双语)

电子控制汽油喷射系统的控制 Control of EFI
几种车型电子控制汽油喷射系统
EFI system for several types of car
§5.1 概 述overview
一、汽油喷射的基本概念 definition of fuel injection
汽油喷射是用喷油器将一定数量和压力的汽油直接喷射到 气缸或进气歧管中,与进入的空气混合而形成可燃混合气。 To spray a certain amount and pressure of fuel directly into cylinder or intake pipe by fuel injector and mix with the air to form combustible mixture .
组成composition:
空气滤清器 Air filter 空气流量计AFS 节气门体TB
电子控 制单元 ECU
怠速控制阀 IAC
空气阀AAD
3、电子控制系统electronic control system 组成 composition:
电控单元ECU:接受来自各个传感器传来的信号,并完成对这些信息的 处理和发出指令控制执行器的动作. To process the information (signals) from the sensors and give commands to the actuators.
6.使各缸可燃混合气分配更加均;
To have more uniform 3.可使发动机燃用稀薄的可燃混合气 mixture for each cylinder; To achieve a reduction in Specific fuel consumption; 4.冷起动性和加速性能较好; To have good cold starting and accelerate better; 7.可节省燃油并减少废气中的有害成分 To save fuel and reduce exhaust Emission.
柴油发动机喷射系统外文文献翻译、中英文翻译、外文翻译

译文标题柴油发动机喷射系统柴油发动机喷射系统 原文标题Diesel engine injection system 作 者Jeff Daniels 译 名 杰夫杰夫 丹尼斯丹尼斯 国 籍 美国美国原文出处 Automotive Design Asia 摘要:柴油喷射压力已提高到2000巴汽油直喷和压电技术都变得越来越常见因为燃油供给系统在不断地改革。
为燃油供给系统在不断地改革。
大约在过去的五年中汽车燃油供给技术发生了一场革命其中变化最大的是柴油发动机在直喷柴油机上运用了共轨系统该系统安装有压电式喷油器现在正受到人们越来越多的关注。
在汽油发动机方面现在也有往直喷技术发展的趋势但这种趋势逐渐趋缓而且并没有都往这个方向发展也有其它新的技术诸如空气引射技术但受材料方面的影响进展也较缓慢。
材料方面的影响进展也较缓慢。
关键词:燃油供给系统燃油供给系统 共轨系统共轨系统共轨系统 压电式喷油器压电式喷油器Abstract: the fuel injection pressure has increased to 2000 bar gasoline direct injection and piezoelectric technology is becoming more common because of fuel supply system in constant reform.About in the past five years automotive fuel oil supply technology was a revolution is one of the biggest changes in diesel engine on the direct injection diesel engine using common rail system is the system equipped with piezoelectric injector is now more and more attention by people. In gasoline engine now has to the trend of the development of the direct injection technology but the trend is gradually slow and not toward this direction also have other new technology such as air ejector technology but also affected by the material aspects of the progress is relatively slow.Keywords:fuel oil supply system Common rail system Piezoelectric injectors1喷射系统发展任何燃油供给系统最基本的功能是向每个汽缸供给足够的燃油通过这种方式任何燃油供给系统最基本的功能是向每个汽缸供给足够的燃油通过这种方式与吸进来的空气混合并燃烧当然燃烧得越完全越好。
电控燃油喷射系统 Motronic M1.5(中文)

实验模板系列汽车电子燃油喷射系统(Motronic M 1.5)汽车电子燃油喷射系统: Motronic“Motronic”(EFI)是现代先进的采用计算机控制系统进行点火控制和燃油喷射控制的发动机管理系统。
该装置所采用的实验用燃油可在特殊的装置中进行混合前的准备,使用安全,无泄漏。
燃料供给系统包括油箱、油泵和燃油滤清器,和燃油喷射系统相连;各元件之间用自封快插式压力软管连接。
ELWE 公司研制的“Motronic”实验模板清晰、鲜明、直观的展示了汽车燃油喷射系统的工作原理图。
它通过插件式线束连接器安全、方便、可靠地把传感器和执行器连接起来。
所有和主控制单元之间均通过4mm插座和桥状插头连接,插头另一端和学生测量工作台相连,构成控制单元和学生测量台之间的信号通道。
只需移动其中任何一个桥状插头就可设置故障,点火提前角和喷油量的信号变化可以立刻在实验平台上显示出来。
对于排故训练,可以在线束和主控制单元之间连接一个故障模拟装置。
许多典型的汽车故障就可以以一种很隐蔽的方式输入到故障模拟器中去。
针对发动机动力系统的固定工况模式和工况过渡的教学实验,除采用车辆上的原装传感器外,也可使用可变信号模拟传感器。
如此则可在任何时候重复进行固定工况模式的检测。
ELWE 公司已经开发出用于车辆自动控制系统的界面和软件系统。
运用该软件,计算机可以方便地对检测和控制信号进行显示和分析。
该界面直接和诊断接口相连接,仅用于对控制系统的原始数据进行分析。
该控制系统实验模板有一个多项插座连接学生测量工作台。
每一名学生都可通过他的测量工作台独立地检测控制系统的输入和输出信号。
一个“Motronic ” 实验模板可以连接若干个学生测量工作台,非常方便于教学。
实验内容:1.Motronic 说明; 10. 空气流量计;2.Motronic 组成名称; 11. 节气门控制,强制怠速和满负荷加浓控制;3.线路图分析;12. 空燃比(λ)控制线路; 4.ELWE 实验模板结构简介; 13. 点火提前角特性图; 5.系统信号控制连接图; 14. 怠速控制系统; 6.自诊断系统——读取故障码; 15. 加速供油控制系统; 7.燃料供给系统检测;16. 霍尔传感器; 8.发动机转速和曲轴位置传感器; 17. 万用表检测排故;9.发动机水温传感器;18. PC 机控制实验系统检测排故;TG 3.275 Motronic M1.5 实验模板设备组成:P 3.0 电源连接电源大电流输出接线柱,钥匙开关可切断电源 尺寸(mm ): 99×297×170(W ×H ×D ) 重量: 1.05kg4位钥匙开关连接主电路和辅助电路尺寸(mm): 99×297×80(W×H×D)重量: 0.5kg4个火花塞,其中3个装在压力容器盒里,(连接压缩机和泄压阀)尺寸( mm): 159 x 297 x 105 (W x H x D)重量: 1.7 kg分电器由驱动马达(12V,20A)带动,惯性轮的速度控制在(0 ~7000r/min)之间,由一个2:1的减速齿轮驱动惯性轮。
电控燃油喷射系统

冷却液温度传感器
采用热敏电阻检测水温。传感器安装在发动机冷却水通路上,水温的变化将引起电阻值的变化,随水温升高,电阻值下降。 ECU中的电阻与水温传感器的热敏电阻串联,热敏电阻阻值变化时,所得分压值THW ,随之改变。
5.进气温度传感器
给ECU提供进气温度信号,作为燃油喷射和点火正时控制的修正信号。
一般而言,与传统的化油器发动机相比,装用电控燃油喷射系统的发动机功率提高5%一10%。燃料消耗降低5%一15%,废气排放量减少20%;由于扭矩特性的明显改善,瞬时响应快,汽车的加速性能大大提高,怠速平稳,冷车起动更容易,暖机更迅速。
燃油供给系统:汽油箱、电动汽油泵、汽油滤清器、燃油分配管、燃油压力调节器、喷油器。
内置式——安装在油箱中,具有噪声小、不易产 生气阻、不易泄漏、管路安装简单。 外置式——串接在油箱外部的输油管路中,易布置、安装自由大,但噪声大,易产生气阻。
按安装位置不同分为:
叶轮式、滚柱式、转子式和侧槽式,常用的为叶轮式、滚柱式。
按电动燃油泵的结构不同分为:
1.电动汽油泵
滚柱泵
当转子旋转时,位于其凹槽内的滚柱在离心力的作用下,紧压在泵体内表面上, 在相邻两个滚柱之间形成了一个空腔。在燃油泵运转过程中,一部分空腔的容积不断增大,成为低压油腔,将汽油吸入,而另一部分空腔容积不断减小,成为高压泵油腔,受压汽油流过电动机,通过出油口压出。
在一些有ISCV(怠速控制阀)的发动机中,没有此螺钉,ECU通过控制ISCV来实现对怠速转速的控制。
3、进气总管、进气歧管
SPI系统发动机采用中央喷射法,进气管形状与化油器式发动机基本一致。
SPI系统发动机进气管 (b) MPI系统发动机进气管
柴油机电控燃油动力系统外文文献翻译、中英文翻译、外文翻译

柴油机电控燃油动力系统外文文献翻译、中英文翻译、外文翻译Design of Diesel Engine Electronic Fuel Control System1.EUP Control MethodThe engine control unit is the most important component ofthe fuel n timing control system。
ensuring the n control requiredto achieve the minimum XXX of the camshaft n。
which is a measurement parameter of the crankshaft。
XXX。
The micro speed regulator (MCU) is controlled by the timer structure module (CTM) and the timing processing unit (TPU)。
When the timer structure module is interrupted by the camshaft trigger。
thecontrol component responds accordingly to the fuel supply system。
and the centralized maintenance module detects a XXX signal tothe timing processing unit (TPU)。
If there are Z teeth。
the span is 360o/z。
The pulse control unit is issued by the PSP and PMM。
The PSP has two working modes: angle-angle and angle-time。
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附录附录A 英文文献与中文参考翻译In the 1970s introduced electronic controls fuel injection system with high performance, it can meet the modern automobile to except the strict request discharge, saving, increase in power, to improve performance and many other aspects accelerating its advantages, gradually replacing carburetor and extensive use, is the inevitable trend of the future.In EFI system, a fuel common faults mainly has: the ignition switch, pump, oil pump does not turn the oil pipeline, not too high or too low, hydraulic injection fuel nozzle nozzle, no oil leakage or drops of oil, fuel nozzle and tubing connection or the intake manifold junction leakage, and cold start-up nozzle doesn't work, etc. The following simple introduction of these faults and eliminate.(1)oil pump oil or notThe ignition switch, pump can turn or pump oil, the main causes of the following: (1) if the engine running, because the air flow has not moved, and the impeller of it is not connected to pump switches to L (EFI system), or distributor in speed signal transmission to the electronic controller (ECU) (EFI system for D) : 2) pump drive circuit relay or main contactor relays disconnect circuit breakers, or coil ablation, 3) pump power input, or the power plug contact undesirable conductor disconnected, 4) pump brush, brush spring break or wear loses elasticity: 5) of the armature winding burning oil: 6) pump wheels stuck. For this failure, should press following method for checking and removing: check whether the oil pump, electric in through the ignition switch engine running, not after the press the pump drive circuit switch, such as oil pump check and its driving circuit itself without fault, pump should be able to turn and oil pump. If pump, should first turn not check whether the power plug pump, or loose wires connecting the disconnect, this is the most common causes of malfunction, also more easily. Further, including driving circuit can check to the failure of the ignition switch, fuse is, the relay, power supplies, and such as relays disconnect the plug and wires connecting them. The relay contacts ablation, electromagnetic winding drive circuit broken will affect the burn, pump can rotate. If contact ablation is not serious, can repair, or by burnish should replacement parts. Final inspection pump itself, can use digital multimeter measurement of the oil pump motor armature, normally it's resistance to 12 ~15n, if the measurement result is somewhat larger, probably due to plug, attachment areas such as poor contact, or brush wear. If the measured value is infinite, you must have been burned armature winding is broken. Because of the pump is whole package, cannot open repair, so should be replaced. After the examination, and in different parts of the normal circumstance, still appear likely engine running, don't turn pump is due to the air flow pump switches have caused by fault, switch contact undesirable, can cause failure attachment breakers. Through the inspection pump switches, easily find fault.(2)pump rotation but not pump oilPump rotation but not pump oil, mainly composed of the following reasons: 1) the pump pressure valves, or stuck roof-floor valve spring break, make discharging pressure valves, pumps have often open the oil pump flow back, but only to the tank can pump pressure pipe in fuel, 2) of the oil pump fitting stuck out of oil pump, not by pressing pressure oil pressure valves only by return tank, 3) the pump JinYou blocked, or JinYou mesh seere blockages, make the pump suction resistance due to too much and cannot pump out fuel, 4) pump impeller and pump shell with serious wear, mutual exist great gap, cannot be fuel pump. To avoid this problem, should strictly in accordance with the requirements of operation and maintenance, cleaning, cleaning tank on screen, avoid jam phenomenon. To check or discharging pressure valves, slight delay card can use the method to eliminate keystrokes and vibration. If you have severe worn or damaged parts of the situation, it should be replaced pump.(3)fuel pressure lowFrom the oil pump output to fuel pressure should be 0.27-0.30 MPa. Low pressure will seriously affect the fuel injection quantity measurement, to reduce power down, causing difficulty, starting to engine performance. Low pressure caused by the reasons for oil pump, valve, pressure from 0 - or - to valve leakage, JinYou filter clogging pump impeller and, wear, and fuel filters in oil, are the factors should be taken into consideration. Another to consider is the regulator, if the voltage regulator, the diaphragm spring is damaged, soft, seating damage caused by oil pressure will be low. If the above situation, should replace the regulator.(4)fuel pressure is too highPressure regulator is caused by excessive stiffness spring is the main reason for the high pressure difference, if the standard with excessive, will make the injection quantity,causing the mixture, now should replace pressure regulator. In addition, pressure regulator and the intake manifold connection pipe leakage, make its cannot feel intake manifold vacuum, will cause the compensating mixture too thick. Through the careful installation of connection lines and often check, can avoid such failure.(5)cold start-up nozzles.such workCheck whether the cold start nozzle can work normally, it should be removed from the inlet connection, with the special tools to coiled tubing connection with the cold start nozzle together, reoccupy interconnects socket and special tools to both the battery. Note battery anode, positive line only even in my hand, and in a very short time point of contact battery anode piles, if the cold start nozzle is good, it will be a brief jet fuel. Otherwise, shall check the cold start nozzle, main is to check whether the magnetic coil. Using a multimeter to check the magnetic coil, the resistance should be in 3-5 Ω, if the resistance, that the magnetic coil is burning. If the cold start nozzle is good, but do not spray, should check whether the normal temperature switches. Using the multimeter to test its two ends, wiring resistance should be 20-50 Ω, if reach 50-60 Ω that its internal contacts have closed loop, nozzle coil current, cause not spray. Note that if the environment temperature over 40 ° C, the temperature of the time switch contacts open attribute normal phenomenon.参考译文:20世纪70年代推出的电子控制燃料喷射系统具有优良的性能,它除了可以满足现代汽车对排放、节油的严格要求外,还在增大功率、改善加速性能等许多方面具有优势,其逐步取代化油器而广泛使用,是今后的必然趋势。