汽车专业英语project2-Automobile-repair-tools-and-equipment[精]课件.ppt

1、 Project 2 Automobile repair tools and equipment1东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材2 Project 2 Automobile repair tools and equipment掌握汽车的常用维修工具、仪器、设备及使用方法掌握其常用术语 知知识识目目标标n 能识别汽车常用维修工具 的英文表达，并能熟记相 关专业词汇 n 能读懂汽车维修常见检测 设备的英文使用说明，并 按照说明进行正确操作和 检测 能力目能力目标标东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材3Task1 Automobile repai

2、r tools 1.New words and expressions efficient ifint a.效率高的，有能力的prior prai a.优先的，在前的maintenance meintinns n.维修，保养essential isenl a.必不可少的；本质的，基本的technician teknin n.技术员，技师wrench rent n.扳手pliers plaiz n.钳子screwdriver skru:draiv n.螺丝刀、起子property prpti n.财产；性质，性能caution k:n n.谨慎；注意(事项)，警告file fail n.档案；文

3、件夹；锉刀hammer hm n.锤，榔头lift lift vt.提，举；vi.升起；消散 n.电梯，举升机知知 识识准准 备备东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材41.New words and expressions torque t:k n.转矩，扭矩gauge geid n.测量仪表jack dk n.千斤顶piston pistn n.活塞valve vlv n.阀，活门spring spri n.春(天)；泉；弹簧，发条tongs tz n.夹子，钳子universal ju:niv:sl a.普遍的；万能的socket skit n.插座，套筒prior

4、 to 先于，优于a variety of 各种各样的carry out 执行，实行apart from 除之外知知 识识准准 备备东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材5知知识识目目hex keys 内六角扳手slip joint pliers 鲤鱼钳Pair of pliers 钢丝钳long nose pliers 尖嘴钳pipe wrench 管子钳steel wire brush 钢丝刷feeler gauge 塞尺/厚度规vernier caliper 游标卡尺micrometer 外径千分尺dial indicator 百分表air compressor 空

5、气压缩机adjustable wrench 活动扳手universal puller 通用拉拨器digital multimeter 数字万用表hydraulic jack 油压千斤顶知知 识识准准 备备东北大学出版社东北大学出版社东北大学出版社东北大学出版社东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材8Task 2 Automobile testing equipment1.New words and expressions facility fsiliti n.pl.设备，设施；technician teknin n.技术员，技师oscilloscope sl,skop n

6、.示波器current krnt a.当前的；流行的 n.流；电流voltage vultid n.电压resistance rizistns n.反抗，抵制；抵抗力(性)；阻力，电阻frequency fri:kwnsi n.次数，频率decode di:kud vt.译(码)，解(码)performance pf:mns n.表现，工作性能analyze nlaiz vt.分析，细察exhaust igz:st vt.使精疲力尽；耗尽 n.排气装置；废气(液)align lain vt.&vi.排行diagnosis daignusis n.诊断知知 识识准准 备备东北大学出版社东北大学出

7、版社改革创新示范教材改革创新示范教材9Task 2 Automobile testing equipmentmechanical miknikl a.机械(制造)的；力学的；呆板的integrate intigreit v.(into，with)(使)成为一体，(使)合并digital diditl a.数字的，数字显示的analog nlg n.类似物;模拟indispensable indispensbl a.(to，for)必不可少的，必需的accurate kjurt a.正确无误的；准确的，精确的reading ri:di n.读物；读数function fkn n.功能；重大聚会；

8、函数impedance mpidns n.电阻抗,全电阻parameter prmit n.常 pl.界限，范围；参数capacitance kpstns n.容量,电容waveform wevf:rm n.波形 amplitude mpltud,-tjud n.振幅intensity intensiti n.强烈，剧烈；强度graphic grfik a.生动的，形象的；图表的interface int(:)feis n.接口；界面，交接处accessory ksesri n.附(零,配)件maintenance meintinns n.维修，保养；扶养费；维持，保持 知知 识识准准 备备东

9、北大学出版社东北大学出版社改革创新示范教材改革创新示范教材10Task 2 Automobile testing equipmentdynamic dainmik a.有活力的；动力的detect ditekt vt.察觉，发现；查明,检测ignition ignin n.点火lubricate lu:brikeit vt.使润滑emission imin n.排放，辐射；排放物extract ikstrkt,ekstrkt vt.取出；提取；获得；摘录 n.摘录；提出物cabinet kbinit n.内阁；贮藏橱，陈列柜compliance kmplains n.排放达标（率）；服从，听从

10、density densiti n.密集，稠密；密度coefficient kofnt n.数系数versatile v:stail a.多才多艺的；多功能的，万用的ingredient ingri:dint n.组成部分，成分，原料contrast kntr:st n.对比；反差 vt.对比 vi.(with)形成对比camber kmb n.拱形,外倾caster k:st n.投手、(家具的)轮脚,后倾知知 识识准准 备备东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材11Task 2 Automobile testing equipmentauto multimeter 汽

11、车万用表auto oscilloscope 汽车示波器engine performances analyzer 发动机性能分析仪auto decoder 汽车解码器auto exhaust gas analyzer 汽车尾气分析仪four wheel aligner 四轮定位仪fault diagnosis 故障诊断liquid crystal display(LCD)液晶显示器self-diagnosis function 自诊断功能electronic control unit(ECU)电控单元data acquisition 数据采集signal extraction device 信号

12、提取装置carbon dioxide(CO2)二氧化碳carbon monoxide(CO)一氧化碳oxygen(O2)氧气hydrocarbon(HC)碳氢化合物nitrogen oxide(NOx)氮氧化物excess air coefficient 过量空气系数知知 识识准准 备备东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材12Automobile testing equipment任务任务实施实施A modern car is a hi-tech product.The repair work is far beyond the capability of techni

13、cians hands and eyes.As a technician,you will have to use some special facilities to find out the fault cause and solve problems.These testing equipments that are commonly used in the auto repair work include auto multimeter,auto oscilloscope,fault decoder，engine performances analyzer,auto exhaust g

14、as analyzer and four-wheel alignment instrument,etc.(shown as the figure 2.2.1).They are all the mechanical-electrical integrated examining facilities specially designed for automotive trouble diagnosis,test and analysis.The brief introduce is as below.东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材13Automobile test

15、ing equipment任务任务实施实施The digital auto multimeter.Multimeters are divided into two types：digital and analog.It is an indispensable testing instrument in the repair process.Compared with an analog multimeter,a digital multimeter(DMM)has more advantages,like accurate readings,more functions and higher

16、impedance.Therefore most electricians would like to use digital multimeters to test such parameters as current,voltage and resistance.Besides,a more advanced function like frequency or capacitance can be selected to measure.Auto oscilloscope.The oscilloscope is a powerful tool by which automobile me

17、chanics can make a rapid fault diagnosis of the automotive electronic equipment.It is a device that measures voltages.When tested,the oscilloscope shows a waveform diagram which the voltage changes with the time to respond to an electronic signal.Normally,it displays the voltage as a function of tim

18、e.Especially,the oscilloscope is applied to observe and measure the frequency,amplitude and waveform of various signals.东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材14Automobile testing equipment任务任务实施实施东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材15Automobile testing equipment任务任务实施实施In the graph,the vertical axis(Y)represents

19、for voltage and the horizontal axis(X)shows time.The intensity or brightness of the display is sometimes called the Z axis.The oscilloscope is more accurate and more graphic than the multimeter to measure an electronic signal.It mainly consists of the liquid crystal display(LCD),function keys,a host

20、 interface and accessories.Auto decoder.When a car is running,once the electrical control system fails,the electronic control unit(ECU)will use its self-diagnosis function to detect the fault.The fault will be stored in the memory of the electronic control unit in the form of the code.The role of th

21、e decoder is to read the fault code from the electronic control unit and provide reference for the maintenance personnel.An auto decoder is divided into general and special type.No matter which it is，its structure is basically the same,mainly including the host,power supply,test connectors and test

22、line.东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材16Automobile testing equipment任务任务实施实施Engine performance analyzer.An engine performance analyzer is a set of instrument that integrates sensor technology,dynamic data acquisition and signal processing technology.It can not only accurately acquire various operation

23、parameters of the engine by dynamically detecting the system of the engines ignition,the fuel supply,cooling,lubrication,intake and exhaust,electronic control,sensor,emission,etc.but also analyze the fault root.The engine performance analyzer is generally composed of five parts:signal extraction dev

24、ice,signal processing system,personal computer(PC)installed the software and accessories,optional equipment and cabinet.东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材17Automobile testing equipment任务任务实施实施东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材18Automobile testing equipment任务任务实施实施Automobile exhaust analyzer.An exhaust gas a

25、nalyzer is one of important testing instruments.A 5-gas analyzer measures carbon dioxide(CO2),carbon monoxide(CO),oxygen(O2),hydrocarbon(HC)and nitrogen oxide(NOx).The gas readings can be used to determine emission compliance,and to diagnose different engine performance problems.Automobile emission

26、analyzer directly measures the thickness of HC,CO and CO2 in the exhaust gas of vehicle.It also can inspect the density of NOx and O2 via electrochemical sensors in order to calculate the excess air coefficient.It is a highly versatile and accurate test instrument.In addition to testing the ingredie

27、nt of exhaust gas,it can be used to assist in detecting and diagnosing the engine fault.东北大学出版社东北大学出版社改革创新示范教材改革创新示范教材19Automobile testing equipment任务任务实施实施Automobile four wheel aligner.The four wheel aligner is used to detect and adjust the parameters of the wheel alignment so as to achieve the ideal vehicle performance,by contrasting the original design parameters.The parameters mainly include the camber,the caster,the toe and the included angle.