发动机管理系统考题整理(英语)
汽车发动机管理系统(旧) 《随车诊断系统的认识》测试习题
《随车诊断系统的认识》测试习题一、填空题1.安装OBD系统的主要目的是___ __ _ ___ __ _。
2.与OBDⅠ系统比较，OBDⅡ系统的优点是___ __ _、___ __ _、___ __ _。
3.监测到缺火故障时，故障指示灯将 __ _。
4.监测到催化转换器失效故障时，故障指示灯将____________。
5.OBDⅡ故障码P0304的第一位“P”是指 ___ __ _。
二、判断题1.PCM可以自动清除故障码。
（）2.PCM可以自动熄灭故障指示灯。
（）3.PCM在存储故障码的同时会存储每一个故障码的冻结帧数据。
（）4.监测到氧传感器故障，将存储故障码，使故障灯闪烁。
（）5.监测到喷油器故障，将存储故障码，使故障灯点亮。
（）三、选择题1.技师甲说OBDⅡ系统的通用汽车和日产汽车的P0001故障码的含义相同；技师乙说OBDⅡ系统的通用汽车和日产汽车的P1001故障码的含义相同( )。
A.甲正确B.乙正确C.甲和乙都正确D.甲和乙都不正确2.技师甲说存储故障码的同时一定会存储冻结帧数据，技师乙说存储故障码的同时不会存储冻结帧数据（）。
A.甲正确B.乙正确C.甲和乙都正确D.甲和乙都不正确3.经过一个( )，PCM将开启所有监测器。
A.驱动循环B.暖机循环C.行程D.路试4.技师甲说汽车可能通过尾气排放监测而没有通过OB DⅡ监测，技师乙说汽车通过尾气排放监测，必然通过OBDⅡ监测。
( )A.甲正确B.乙正确C.甲和乙都正确D.甲和乙都不正确5.技师甲说OBDⅡ规定曲轴位置的英文缩写为CKP，技师乙说OBDⅡ规定加热型氧传感器的英文缩写为O2S（）。
A.甲正确B.乙正确C.甲和乙都正确D.甲和乙都不正确四、问答题1.什么是一个驱动循环？2.OBDⅡ系统有哪些监测功能？3.OBDⅡ故障诊断仪有哪些诊断模式？《氧传感器电路检修》测试习题答案一、填空题1. 监测发动机排放故障，保证发动机达到排放法规的要求。
《汽车发动机管理系统》A卷
《汽车发动机管理系统》A卷2019—2020学年第二学期期末考试试题《发动机管理系统故障诊断与维修》试卷 A 卷一、填空题（共10题，每空1分，共20分）1、汽车故障按丧失工作能力程度进行分类，要分为___________ 和____________。
2、汽车故障的变化规律可分为3个阶段，早期故障期、_________________ 和___________。
3、凸轮轴位置传感器可分为____________、 ____________和光电式三种类型。
4.无分电器点火线圈与一般点火线圈不同，其___________ 与___________没有连接，为互感作用。
5、汽车每行驶___________公里或1至2年，应更换___________滤清器。
6、电控燃油喷射系统按进气量的计算方式不同可分为___________和________型两种。
7、排气再循环控制系统的作用是。
8、电控燃油喷射系统由、、三个子系统组成。
9、电控燃油喷射系统的类型按喷射时序分类可分为_________________ 、______________ 和______________________三种。
10、电控共轨喷射系统中有一条公共油管，用___________向共轨中泵油，用电磁阀进行压力调节并由压力传感器反馈控制。
二、选择题（共10题，每题2分，共20分）1、下列哪项不是电控发动机的优点（）。
A 、良好的起动性能B 、加速性能好C 、功率大D 、减速减油或断油 2、火花塞属于点火系统当中的（）。
A 、执行器B 、传感器C 、既是执行器又是传感器D 、控制开关3、以下哪项是汽车起动困难的机械方面的原因（）。
A 、气缸压缩压力不足 B 、高压火不足 C 、个别重要传感器有故障 D 、起动机故障4、当汽车处于早期故障期也就是汽车的磨合期时，此时的汽车诊断一般是（）。
A 、总成损坏 B 、材料老化 C 、机械磨损 D 、电子元件损坏5、标准OBD —II 诊断插座上有（）个插孔。
《汽车发动机管理系统》- A卷
**职业大学2019—2020学年第二学期期末考试试题（高职用）《汽车诊断与维修Ⅳ》发动机电控 试卷 A 卷一、填空题（共10题，每空1分，共20分）1、汽车故障按丧失工作能力程度进行分类，要分为___________ 和____________。
2、汽车故障的变化规律可分为3个阶段，早期故障期、_________________ 和___________。
3、凸轮轴位置传感器可分为____________、 ____________和光电式三种类型。
4.无分电器点火线圈与一般点火线圈不同，其___________ 与___________没有连接，为互感作用。
5、汽车每行驶___________公里或1至2年，应更换___________滤清器。
6、电控燃油喷射系统按进气量的计算方式不同可分为___________和________型两种。
7、排气再循环控制系统的作用是 。
8、电控燃油喷射系统由 、 、 三个子系统组成。
9、电控燃油喷射系统的类型按喷射时序分类可分为_________________ 、______________ 和______________________三种。
10、电控共轨喷射系统中有一条公共油管，用___________向共轨中泵油，用电磁阀进行压力调节并由压力传感器反馈控制。
二、选择题（共10题，每题2分，共20分）1、下列哪项不是电控发动机的优点（ ）。
A 、良好的起动性能B 、加速性能好C 、功率大D 、减速减油或断油 2、火花塞属于点火系统当中的（ ）。
A 、执行器B 、传感器C 、既是执行器又是传感器D 、控制开关 3、以下哪项是汽车起动困难的机械方面的原因（ ）。
A 、气缸压缩压力不足 B 、高压火不足 C 、个别重要传感器有故障 D 、起动机故障4、当汽车处于早期故障期也就是汽车的磨合期时，此时的汽车诊断一般是（ ）。
A 、总成损坏 B 、材料老化 C 、机械磨损 D 、电子元件损坏5、标准OBD —II 诊断插座上有（ ）个插孔。
新能源汽车专业英语试题库答案最新完整精品
2020版《新能源汽车专业英语》试题库第一部分：专业术语第二部分：常用缩写第三部分：英译汉1. What are Alternative fuels currently commercially available and closely attended? 目前商业可用和受到密切关注的替代燃料有哪些？· Liquefied petroleum gas 液化石油气· CNG 压缩天然气· Methanol 甲醇· Hydrogen 氢· Fuel-cell 燃料电池· Electricity 电能· Hybrid（electricity + conventional fuels）混合动力（电+传统燃料）2. What are the types of electric vehicles? 电动汽车分为哪几种？Electric vehicles are broadly categorized into four groups based on the electric design of their powertrains, namely battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), hybrid electric vehicles (HEVs), and fuel-cell electric vehicles (FCEVs). Only BEVs and PHEVs are plug-capable, and are referred to as plug-in electric vehicles (PEVs).根据电动汽车动力传动系统的电动设计，将电动汽车大致分为四大类，即纯电动汽车(BEV)、插电式混合动力汽车(PHEV)、混合动力电动汽车(HEV)和燃料电池电动汽车(FCEV)。
发动机管理题库(96道)
发动机管理1、汽油发动机在运转时，由于没有点火、混合气过稀或过浓、压缩压力过低或其他原因，导致吸入气缸内的混合气不能燃烧，被成为( )。
——[单选题]A 失火B 着火C 损坏正确答案：A2、( )是将低压电变为高压电的主要部件，是汽车点火系的高压电源。
——[单选题]A 起动机B 点火线圈C 火花塞正确答案：B3、火花塞的“间隙”是其主要工作技术指标，间隙过( )，点火线圈和分电器产生的高压电难以跳过，致使发动机起动困难。
——[单选题]A 小B 大C 等于0正确答案：B4、爆震传感器的敏感元件是( )，当振动或敲缸发生时，压电陶瓷产生一个电压峰值，敲缸或振动越大，产生的峰值就越大。
——[单选题]A 压电陶瓷B 负温度系数传感器C 电磁线圈正确答案：A5、在曲轴位置的齿圈上加工出“两个缺齿”，于是不仅可以测量转速，也可获取曲轴的( )。
——[单选题]A 位置信息B 圆跳动C 故障信息正确答案：A6、空气流量计维修注意事项：不允许测量( )。
——[单选题]A 电阻B 电容C 电感D 电磁正确答案：A7、( )用于控制发动机进气管的进气量，从而控制发动机的转速和输出功率。
——[单选题]A 空气流量计B 进气压力传感器C 节气门体正确答案：C8、电子节气门体包括节气门阀片、( )、节气门控制电机。
——[单选题]A 节气门位置传感器B 油门拉线C 空气流量传感器正确答案：A9、供油系统的功能是根据发动机控制模块发出的供油指令，适时地将适量的燃油提供给( )。
——[单选题]A 节气门B 相应的气缸C 排气管正确答案：B10、汽油泵由( )、叶片泵和端盖（集成了止回阀、泄压阀和抗电磁干扰元件）等组成。
——[单选题]A 直流电动机B 交流电动机C 齿轮泵11、拆卸和重新安装喷油器时，必须更换( )，且不得损伤喷油器的密封面。
——[单选题]A 喷油器B O型圈C 喷油器固定螺母正确答案：B12、诊断仪可以对燃油泵执行“()”操作，以此来判断喷油泵相关线路是否有故障。
发动机管理系统高级诊断课程(上)课后试题
发动机管理系统高级诊断课程（上）课后试题（100分）测试说明：1.不要在考试卷上做标记。
2. 重要事项：仔细阅读并认真遵守本说明，以确保能在考试中取得好成绩。
3. 本试卷中包含有多种选择答案考试题，每道试题有A.B.C.D 4种可能的答案，你的任务就是选择一个对该试题来说为最好的答案。
并在试题单上标明所选的字母，以此来识别你做的选择。
如果不回答试题，该题将被判为错。
4.考试结束后将此试卷交回讲师。
5.不要将此试卷从考试场带走。
1、请填写您的姓名，这很重要！【多项填空】姓名________________________一、项择题：（每题5分，总分100分，请选择正确的答案）2、对于发动机管理的故障维修，技师A说：传感器出现故障较为难维修，往往会导致一因多果；技师B 说：执行器出现短路/断路故障码时，首先需要检查线路是否短路/断路？谁正确？【单选题】A.A正确B.B正确C.都正确D.都错误正确答案: C3、某车不能启动（仪表防盗灯先量后灭），诊断仪器检测所有模块正常并且没有故障码，其故障最可能是？【单选题】A.ECU没有收到曲轴位置传感器信号（5分）B.ECU没有收到氧传感器的信号C.ECU没有收到电子油门踏板信号（5分）D.ECU没有收到电子节气门位置传感器信号正确答案: 每个选项都可自定义分值4、非直喷发动机的喷油量主要取决于？【单选题】A.增压压力与节气门开度B.进气量与节气门开度C.发动机进气量与转速D.冷却液温度与进气量正确答案: C5、下列哪种工况下才用较浓的空燃比？【单选题】A.匀速行驶工况B.急减速工况C.滑行工况D.急加速工况正确答案: D6、缸内直喷发动机，在什么时候，喷油器开始喷油？【单选题】A.进气冲程B.压缩冲程C.做功冲程D.排气冲程正确答案: A7、在讨论油泵驱动模块FPDM时，技师A说：如果FPDM电源或接地不良，可能油泵不工作。
技师B 说：如果FPDM没有信号输出，可能油泵驱动模块FPDM损坏。
机务工程英语试题和答案
机务工程英语试题和答案请写出下列单词的含义ACCESSORY GEARBOX 附件齿轮箱ACCUMULATOR 储压器ACTUATOR 作动筒/器BEARING(两个含义) 1方位;2轴承BORESCOPE 孔探BRACKET 支架BYPASS V ALVE 旁通活门CHIP DETECTOR 金属碎屑探测器FAIRING 整流罩FASTENER 紧固件FLAME ARRESTOR 火焰抑制器GASKET 密封垫LUBRICANT 润滑(剂)MANIFOLD 总管MUFFLER 消音器NOZZLE 喷嘴QUADRANT 扇形轮RECEPTACLE 插座SNUBBER 缓冲器SOLENOID 电磁线圈SQUIB 爆管/爆炸帽SUMP 集油槽SURGE 喘振SHOCK STRUT 减震支柱STICK SHAKER 抖杆器SPRING LOADED 弹簧加载THERMOCOUPLE 热电偶TRANSPONDER 应答机TURNBUCKLE 松紧螺套一写出下列缩写的全称及中文意思1CCO component change order 部件更换指令2BS(6章) body station 机身站位3GCU generator control unit 发电机控制组件4IDG integrated drive generator 整体驱动发电机5BTB bus tie breaker 汇流条连接断路器6TRU transformer rectifier unit 变压整流组件7PRSOV pressure regulate shut-off valve 压力调节关断活门8ACM(21章) air cycle machine 空气循环机9CPC cabin pressure controller 客舱压力控制器10EMDP electric motor drive pump 电马达驱动泵11AACU anti-skid auto-brake control unit 防滞自动刹车控制组件12PSEU proximity switch electronic unit 临近电门电子组件13WHCU window heat control unit 风挡加温控制组件14DEU display electronic unit 显示电子组件15DFDR digital flight data recorder 数字飞行数据记录器二英译汉16Brake Seizure刹车抱死17The airplane has three main jack points and four auxiliary jack points.飞机有三个主顶点和四个辅助顶点18NOTE: Make sure you set and release the parking brake with the same hydraulic system pressurized. If you release the parking brake with a different system pressurized, you will transfer hydraulic fluid from one system to the other.注意: 确保使用同一个增压的液压系统设置和释放停留刹车.如果使用不同的增压系统释放停留刹车,会使液压油从一个系统转移到另一个系统19CAUTION: WHEN YOU CLOSE THE BATTERY SWITCH, THE BATTERY AND STANDBY BUSES HAVE POWER.YOU WILL DISCHARGE THE BATTERY TO ZERO VOLTS VERY FAST. YOU SHOULD GET AN AC POWER SOURCE ON THE ELECTRICAL SYSTEM QUICKLY.告诫:当你闭合电瓶电门,电瓶汇流条和备用汇流条有电.这样你将很快就把电瓶电压释放到零伏,你应当尽快给电源系统提供交流电.20Do not supply more than 60 psi of pressure to the pneumatic system. If you supply too much pressure, damage to equipment and injuries to personnel can occur.不要给气源系统提供超过60psi的压力.如果你提供过高的压力,会发生设备损伤和人员伤亡.21OUTFLOW VALVE IS MOTOR OPERATED. DO NOT INSERT HAND OR TOOLS IN OUTLET DURING ANY GROUND OPERATION OR INJURY TO PERSONS CAN OCCUR.外溢流活门是马达操作的.在任何地面操作期间都不要把手和工具伸进去,否则会发生人身伤亡22Because the EDP depressurization solenoid valve gets electrical power when the EDP HYD PUMP switch is OFF, you normally keep the switch in the ON position.因为EDP 释压电磁活门是在EDP液压泵电门在OFF位的时候通电,所以正常情况下电门保持在ON位.23WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSON AND DAMAGE TO EQUIPMENT警告:你必须仔细地给所有起落架插上地面安全销.意外地收上起落架会导致人员伤亡和设备受损三汉译英24航后检查发现右外主轮磨损见线，参照AMM32-45-11,更换此轮。
汽车英语考试试题题库
汽车专业英语试题（含答案）一、单词互译（英译汉）1、 Automobile2、 Classification3、 Combustion4、 Chamber5、 Circulate6、 Crankshaft7、 Antifreeze8、 Carburetor9、 Mechanics10、Air–fuel mixture（汉译英）1、连杆n.2 、点燃 n.3 、简洁地 adv.4 、（使）旋转 v.5 、发动机n.6 、要求v.7 、输送v.8 、活塞n.9 、系统n.10、气缸n.二、词汇和语法1、The ______ of piston movement is called TDC (top dead center).A、upper limitB、lower limitC、limit2、A _____ is piston movement from TDC to BDC or from BDC to TDC.A、strokeB、stageC、state3、The actions ______ can be divided into four stages, or strokes.A、taken place in the engine cylinderB、taking place in the engine cylinderC、take place in the engine cylinder4、 This advantage prevents the diesel engine replacing thegasoline engine in some automobiles and airplanes.A. toB. forC. from5、 In any internal combustion engine burning fuel heats air consequently.A. whichB. thatC. when6、In the case of the diesel engine the supply is effected by anA. injectB. internationalC. injection7、The fundamental difference gasoline and diesel engines isin the gasoline engine the source of the heat for igniting the charge.A. both, thatB. between, thatC. between, which8、Both kinds of engines internal combustion engines, eachof them has its characteristic features.A. is, butB. are, butC. are, and9、Let us compare the diesel engine the gasoline engine.A. onB. aboutC. with10、The mixture of the gasoline engine is provided by a carburetor.A. explosiveB. expensiveC. expands三、阅读与理解Part 1The engine is the source of power that makes the wheels go around and the car move. The automobile engine is an internal combustion engine because the fuel (gasoline) is burned inside it.The burning of gasoline inside the engine produces high pressure in the engine combustion chamber .This high pressure forces piston to move, the movement is carried by connecting rods to the engine crankshaft. The crankshaft is thus made to rotate: the rotary motion is carried through the power train to the car wheels so that they rotate and the car moves.1.What do we see from the first paragraphs? ( )A.The engine is source of power for a car.B.The engine can not make wheels go around.C.The engine is resource of oil.2.Which one Statement is true according the above first paragraph?( )A.The automobile engine is an international combustion engine.B.The automobile engine is an external combustion engine.C.The automobile engine is an inner combustion engine3.What do we see from the second paragraphs? ( )A.High pressure is source of power inside a engine.B.Crankshaft is rotated without any force.bustion chamber is not a part of the engine.4.Which one Statement is true according the above second paragraph?( )A.The movement of piston is carried by connecting rods to the enginecrankshaft.B..This lower pressure forces piston to move.C.Both of A and B are true.5.Which one Statement is true according the last sentence in the article?( )A.The power train is required for a car moving.B.The rotary motion of crankshaft is enough for a car moving.C.Both A and B are false.Part 2The engine also needs a cooling system; the combustion of theair-fuel .The mixture in the engine creates a very high temperature (as high as 2000℃ to 2700℃). The cooling system takes heat away from the engine by circulating a liquid coolant (water mix with antifreeze) between the engine and a radiator .The coolant gets hot as it goes through the radiator. Thus, the coolant continually takes heat away from theengine, where it could do damage, and delivers it to the radiator .Air passing through the radiator takes heat away from the radiator.6.What do we see from above paragraph? ( )A.a cooling system is must for the engine .B.The engine don’t need a cooling systemC.The engine might need a cooling system.7. How much will be created the temperature of the mixture in the engine? ( )A. As high as 2000℃ to 2700℃.B. As high as 1300℃ to 2000℃.C. Not higher than 2000℃.8. What is liquid coolant? ( )A. water mix with antifreezeB. water used by the cooling system.C. Any liquid used by the cooling system.9. What do we see from above paragraph? ( )A. The coolant gets HOT as it goes through the radiatorB. The coolant gets COOL as it goes through the radiatorC. Both A and B are false.10. Which one Statement is true in the article? ( )A. Air passing through the radiator takes heat away from the radiator.B. Air passing through the radiator gets MORE heat.C. Both A and B are false.四、翻译A 英译汉1. Reducing fuel consumption, lowering exhausted emissions and reducingengine noise.减少耗油量，降低废气排放以及降低发动机噪声。
汽车专业英语复习题
汽车专业英语复习题汽车专业英语题型一、Translate the following expressions into Chinese.二、Choose th e ONE answer that best completes the sentence.三、Translate the following sentences into Chinese.四、Identify the English names according to the picture.一、Translate the following expressions into Chinese.1. gasoline engine2. intake stroke3. combustion chamber4. piston5. cylinder wall6. injector7. throttle valve 8. fuel pump9. cold start 10. radiator11. air-fuel ratio 12. battery13. water jacket 14. firing order15.spark plug 16. diesel engine17. exhaust stroke 18. bearing support19. heat dam 20. rod journal21 push rod 22. rocker arm23. valve spring 24. ignition timing25. oxygen sensor 26. compression ratio27. flywheel 28. oil pump29. vacuum advance 30. distributor 二、Choose the ONE answer that best completes the sentence.1. what do almost all cars use to convert gasoline into motion?A. one-stroke combustion cycleB. two-stroke combustion cycleC. three-stroke combustion cycleD. four-stroke combustion cycle2. Which component forms a guide for the piston and acts as a container for taking in, compressing, firing, and exhausting the air-fuel charge?A. valve guideB. camshaftC. CylinderD. Engine block3. which component is used to seal the pressure of compression and power inside the cylinder?A. piston landB. compression ringC. oil control ringD. Engine block4. The connecting rod is attached to the piston by the .A. rod capB. piston pinC. cap boltsD. cap bearing5. Which car company uses VTEC engines?A. HondaB. FordC. ToyotaD. V olkswagen6. Electronic fuel injection system can be divided into basic sub-systems.A. twoB. threeC. fourD. five7. What is the name of the sensor that monitors the pressure of the air in the intake manifold?A. the mass air flow sensorB. the exhaust oxygen sensorC. the manifold absolute pressure sensorD. the throttle position sensor8. The cylinder head contains for cooling in the assembled engine.A. oil passageB. water jacketsC. a fanD. an oil cooler9. The oil pan is located on the of the engine.A. upB. highC. bottomD. center10. The on an internal, combustion engine provides the spark that ignites the combustible air/ furl mixture in the combustion chamber.A. stating systemB. cooling systemC. ignition systemD. fuel system11. A car uses a four-stroke engine. The four strokes areA. intake, compression, power and exhaustB. injection, rotation, ignition and exhaustC. injection, carburetion, rotation and exhaustD. intake, rotation, injection and ignition12. Generally, an automobile is operated by combustion engine.A. internalB. dieselC. gasolineD. cylinder13. The connecting rod transmits the up-and-down motion of the piston to thewhich changes it into rotary motion.A. crankshaftB. camshaftC. cylinderD. piston14. These passageways allow _________ to circulate throughout the cylinder area to keepthe engine cool.A. fuelB. oilC. coolantD. water15. The radiator consists of top and bottom tanks, and aA. impellerB. thermostatC. coreD. cap16. Most pistons have ___________ ring grooves at the top.A. oneB. twoC. threeD. four17. Camshaft’s function is to ________ the engine valves positively and timely, in adefinite sequence, and to control their closing against the return action of the valve springs.A. openB. closeC. chargeD. back18. The push rods transmit the force from the ________ to the rocker.A. springB. valveC. camshaftD. tappets19. Engine lubricating systems are divided into two types:_________ and pressure feed.A. splashB. touchC. sparkD. ignition20. The oil indicator light goes on when oil pressure is _______ than a certain value.A. higherB. lowerC. upperD. larger三、Translate the following sentences into Chinese.1、Generally speaking, an engine contains one engine block,two assemblies and five systems. One engine block means that this assembly has a cylinder block, one or two cylinder heads (if it is a V type engine) and a crankcase. Two assemblies mean an engine crankshaft and connecting rod assembly and a valve train. Five systems mean the fuel supply system, the lubrication system, the cooling system, the ignition system and the starting system.2、The valve train provides timely admission of the fresh charge into the cylinders and exhaust ofspent gases from them.3、An engine is mainly composed of two mechanisms and five systems.4、The crankshaft and connecting rod assembly mainly consists of the engine crankcase and cylinderblock, the piston and connecting rod, the crankshaft and flywheel.四、Identify the English names according to the pictures.1.2.3.3.4.5.答案：一、Translate the following expressions into Chinese.（2’×15 = 30’）1. 汽油机2.进气行程3. 燃烧室4. 活塞5. 汽缸壁6. 喷油器7. 节气门8. 燃油泵9. 冷起动10. 散热器11. 空燃比12. 蓄电池13. 水套14. 点火顺序15.火花塞16. 柴油机17.排气行程18. 轴承座19. 隔热槽20 连杆轴颈21. 推杆22. 摇臂23. 气门弹簧24. 点火正时25. 氧传感器26. 压缩比27. 飞轮28. 机油泵29. 真空提前30.分电器二、Choose the ONE answer that best completes the sentence. （2’×10 = 20’）1、D2、C3、B4、B5、A6、B7、C8、B9、C10、C 11、A 12、A 13、A 14、C 15、C 16、C 17、A 18、A 19、A 20、B三、Translate the following sentences into Chinese. （14’）1、一般说来，发动机包括一个发动机机体，两个机构和五个系统。
系统工程考试题及答案英文
系统工程考试题及答案英文System Engineering Exam Questions and Answers1. Question 1: Define the term "System Engineering" and explain its significance in the development of complex systems.Answer 1: System Engineering is an interdisciplinary approach to ensure that the customer and stakeholders' needs are met throughout a system's life cycle. It involves the coordination of all technical and managerial aspects of a project to ensure that the system's components work together effectively. Its significance lies in the ability to manage complexity, reduce risk, and ensure that the system is optimized for performance, cost, and schedule.2. Question 2: What are the key elements of the Systems Development Life Cycle (SDLC)?Answer 2: The key elements of the SDLC include: 1) Concept Development, where the idea for the system is initiated; 2) Requirements Analysis, where the system's requirements are defined; 3) System Design, where the system's architecture and components are planned; 4) Implementation, where the system is built and integrated; 5) Verification and Validation, ensuring the system meets the specifiedrequirements; 6) Operation and Maintenance, where the system is deployed and maintained; and 7) Disposal, where the system is retired and disposed of properly.3. Question 3: Describe the role of a Systems Engineer in the context of a project.Answer 3: A Systems Engineer is responsible for theoverall management and coordination of a project's technical aspects. They ensure that the system's design and development align with the project's goals and objectives. They also facilitate communication between various stakeholders, manage technical risks, and oversee the integration of system components.4. Question 4: What is the purpose of a System Requirements Specification (SRS)?Answer 4: The purpose of an SRS is to document the functional and non-functional requirements of a system. It serves as a contract between the stakeholders and the development team, outlining what the system must do and howit should perform. It is used to guide the design and development process and to verify that the final product meets the specified requirements.5. Question 5: Explain the concept of "trade-off analysis" in system engineering.Answer 5: Trade-off analysis is a process used in system engineering to evaluate the impact of design decisions onvarious system attributes such as cost, performance, reliability, and maintainability. It involves comparing different design options and making decisions that balance conflicting objectives to achieve the best overall system performance.6. Question 6: What is the difference between a "system" anda "subsystem"?Answer 6: A system is a set of interacting components working together to achieve a common goal. A subsystem is a part of a larger system that performs a specific function or set of functions. Subsystems are integrated into the larger system to contribute to its overall functionality.7. Question 7: Describe the importance of "stakeholder management" in system engineering.Answer 7: Stakeholder management is crucial in system engineering as it involves identifying all parties with an interest in the project and understanding their needs and expectations. Effective management of stakeholders ensures that their input is considered in the development process, leading to a system that meets the diverse requirements and achieves a higher level of satisfaction.8. Question 8: What is meant by "system of systems" (SoS) and how does it differ from a single system?Answer 8: A system of systems (SoS) refers to a collection of systems that are independent but work together to achievea common goal. Unlike a single system, where components are tightly integrated, an SoS involves managing the interactions between multiple, potentially complex systems that may have their own life cycles and operational constraints.9. Question 9: Explain the role of "configuration management" in system engineering.Answer 9: Configuration management is the process of identifying, controlling, and maintaining the integrity of a system's configuration throughout its life cycle. It ensures that all changes to the system are documented, reviewed, and approved, maintaining consistency and traceability of the system's components and their relationships.10. Question 10: What is the purpose of a "systemarchitecture review"?Answer 10: A system architecture review is conducted to evaluate the design of a system's architecture against the project's requirements and objectives. It helps to identify potential issues early in the development process, ensuring that the system is designed to meet its intended purpose and is scalable, maintainable, and cost-effective.This set of questions and answers provides a comprehensive overview of key concepts in system engineering, suitable for an examination setting.。
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一、各种电控系统的基本特点 1、Gasoline-injection systems
Gasoline injection permits fuel to be precisely metered to the engine （汽油喷射系统可以精确地计量供给发动机的燃油量） The A/F mixture is controlled so that the toxic content of the exhaust gas is kept to a low level.（控制混合气的空燃比使发动机中废气排放中有害物质含量保持在一个较低的水平。） 1）Multipoint fuel injection systems using the continuous-injection principle 运用连续喷射原理的多点喷射系统 The K-Jetronic mechanical-hydraulic gasoline injection system (机械/液力控制喷油系统) K-Jetronic continually meters the fuel to the engine as a function of the intake air quantity. （K-Jetronic系统根据进入发动机的空气量调节供油量） It was possible to extend the K-Jetronic by means of a Lambda closed-loop control in order to obtain low exhaust-gas values. （通过拉姆达闭环控制可以满足废气排放较低的控制标准） 2）Injection systems with intermittent fuel injection (间歇式燃油喷射系统)
The L-Jetronic an electronic fuel-injection system with analog technology （运用模拟技术的电子燃油喷射系统）
L3 Jetronic L3 Jetronic is a system which uses digital technology. （运用数字控制系统） This means that it can take over additional control functions which would otherwise have been impossible with analog technology, （这种系统可以增加一些在模拟技术中无法实现的控制功能） the overall result being that the injected fuel quantity is better adapted to the engine's various operating requirements（使喷油量能更好的适应发动机各种工况的适应要求）
LH-Jetronic On the LH-Jetronic (1981-1998), instead of the air quantity drawn into the engine being measured, a hot-wire air-mass meter registers and measures the air mass. （用热线空气流量计代替原来的空气流量计来计量空气的流量） This enables correct A/F mixture formation independent of the environmental conditions.（可以使空气-燃油混合气的计量不受环境的影响）
3）Single-point injection system with intermittent injection 单点喷射间歇式燃油喷射系统 Mono-Jetronic a single-injector is used which is located in the throttle body at a central point directly above the throttle valve. （单点喷油器直接安装在节气门上部阀体的中心部位。）
2. Ignition systems The ignition is responsible for igniting the compressed A/F mixture at precisely the correct ignition point, and thus initiating the mixture's combustion. （点火系统的功能是在正确的点火时刻点燃已压缩的混合气，引发混合气燃烧） The ignition point is calculated from the engine's speed and load status (by measuring the air pressure in the in-take manifold).（点火时刻由发动机的速度和负荷状况计算得来，二发动机的负荷则由进气管压力换算得来）
3.Motronic engine management Motronic combines the gasoline-injection and ignition systems to form a common engine-management system. （将汽油喷射系统和点火系统组合在一起，行程发动机管理系统）
二、CNG供气系统组成 6、natural-gas pressure regulator(天然气压力调节器） 7、natural-gas rail with natural-gas pressure and temperature sensor（天然气轨附带天然气温度、压力传感器） 8、natural-gas injector（天然气喷嘴）11、filter neck for gasoline and natural gas （天然气滤清器）12、natural-gas tank shutoff valves(天然气瓶截止阀） 13、natural-gas tank（天然气瓶） 三、气体燃料发动机控制方式 单ECU方式
双ECU方式 四、发动机工况种类，工况适应 1)Cold starting（冷起动） supplementary fuel must be injected into the engine．燃油需加浓
2)Post-start phase（起动后） supplementary fuel required for a brief period.需短暂加浓
3)Warm-up phase（暖机） The engine still requires an enriched mixture to offset the fuel condensation on the intake-manifold walls. 仍然需要加浓以补偿进气管壁上积累的燃油
4)Idle and part-load（怠速和部分负荷） Today’s standard concepts rely exclusively on stoichiometric mixtures 一般使发动机在此时工作于理论空燃比
5)Full Load (WOT)全负荷 supplementary enrichment may be required． this enrichment furnishes maximum torque and/or power． 需加浓混合气以取得最大的扭矩和功率输出
6)Acceleration and deceleration加减速 supplementary fuel required until the fuel layer destabilizes. 在油膜厚度稳定前应加浓
7)Trailing throttle (overrun)倒拖 Fuel metering is interrupted 切断燃油供给
五、fuel supply system组成 Fuel tank(油箱) Fuel lines(油管) Electric fuel pump（电动燃油泵） Fuel filters(燃油滤清器） Fuel rail(fuel distributor)（油轨） Fuel-pressure regulator（燃油压力调节器）
六、fuel pump根据布置不同的分类 in-line or in-tank versions 在线泵和在箱泵两类
七、fuel pump根据原理不同的分类 1）Positive-displacement pumps（变容泵） Roller-cell pump（辊子泵） Inner-gear pump（内齿轮泵） 2）Flow-type pumps（流动泵） Peripheral pumps（圆周泵） Side-channel pump（侧槽泵）
八、ME-motronic系统的功能 Motronic's primary function is to implement the engine’s operational status in line with the driver's demands. （Motronic 的主要功能就是实现发动机的运行状态符合驾驶者的要求。）
九、ME-motronic系统的辅助功能 ME-Motronic complements these basic functions with a wide spectrum of supplementary open and closed-loop control functions, including: 1）Idle-speed control, 2）Lambda closed-loop air-fuel mixture control, 3）Control of the evaporative-emissions control system, 4）Exhaust-gas recirculation (EGR) for reductions in NOx emissions, 5）Control of the secondary-air injection to reduce HC emissions, 6）Cruise control.