项目4汽车底盘构造认识6学时.pptx

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1、2023/1/9汽车实用英语 全国交通运输职业教育教学指导委员会马林才刘大学 韩建保“十二五十二五”职业教育国家规划职业教育国家规划教材教材 组织编写主 编副 主 编主 审2023/1/9四冲程发动机构造与工作过程介绍发动机燃油供给系统认识发动机冷却系统和润滑系统认识汽车底盘构造认识汽车电气设备和主动安全系统介绍项目一项目二项目三项目四项目五项目六项目七项目八汽车车身电气设备和被动安全系统介绍车载网络系统与自动驾驶技术介绍新能源汽车介绍项目九汽车性能参数及检测设备介绍项目十汽车故障诊断仪和数据流项目十一汽车使用说明书及维修资料项目四 汽车底盘构造认识学习目标学习时间任务描述引导问题项目内容12

2、345拓展材料61.认识汽车底盘中关于传动系统、行驶系统、转向系统和制动系统等的英语术语和词汇；2.理解汽车底盘各系统中零部件及其工作过程的英语固定表达的方法；3.运用所学知识，借助专业词典，对关于汽车底盘构造资 料进行中英文互译；4.在教师指导下，完成与汽车底盘构造及工作过程相关的英语资料阅读和翻译；5.正确完成课后练习。学习目标.时间要求:建议 6 6 学时学习时间以民用汽车为例，学习有关变速器、离合器、差速器、传动轴、制动器、轮胎和悬架等汽车底盘知识，完成相关术语、词汇、特殊语句的认识。通过完成该任务，能阅读关于汽车底盘构造及工作过程的英文文献，并能运用所学项目知识和翻译技巧，翻译相关文

3、献。任务描述引导问题你知道下图中英文的意思吗？项目内容Project 4 Acquaintance with AutomotiveChassis Construction项目内容Project 4 Acquaintance with AutomotiveChassis Construction项目内容Project 4 Acquaintance with AutomotiveChassis Construction项目内容Project 4 Acquaintance with AutomotiveChassis Construction A motor vehicle consists of

4、a number of sections which,for convenience,can be considered as follows:the engine assembly,the frame or chassis,the power train,the running gear,the electrical system and the body(shown as Figure 4-1).项目内容Project 4 Acquaintance with AutomotiveChassis Construction The shafts that carry the gears are

5、:the input shaft,the countershaft(or cluster),the main shaft(or output shaft)and the reverse idler shaft(shown as Figure 4-2).项目内容Project 4 Acquaintance with AutomotiveChassis Construction The clutch allows you to connect and disconnect the engine and the transmission(shown as Figure 4-3).项目内容Projec

6、t 4 Acquaintance with AutomotiveChassis Construction The typical automatic transmission combines a fl uid torque converter,a planetary gear system,and a hydraulic control system in a ingle unit(shown as Figure 4-4).项目内容Project 4 Acquaintance with AutomotiveChassis Construction The drive shaft connec

7、ts the transmission output shaft to the differential pinion shaft(shown as Figure 4-5).项目内容Project 4 Acquaintance with AutomotiveChassis Construction A typical differential carrier assembly includes the final-drive gears(the crown wheel and pinion),the differential case and the differential gears.项目

8、内容Project 4 Acquaintance with AutomotiveChassis Construction The key components that make up the steering system are the steering wheel,steering column,steering shaft,steering gear,drag link,steering knuckle arm and tie-rod assembly(shown as Figure 4-7 and Figure 4-8).项目内容Project 4 Acquaintance with

9、 AutomotiveChassis Construction项目内容Project 4 Acquaintance with AutomotiveChassis Construction The braking system includes the service(foot)brakes system for use when the vehicle is being driven,and a parking brake system,usually hand operated,which is applied when the vehicle is parked(shown as Figu

10、re 4-9).项目内容Project 4 Acquaintance with AutomotiveChassis Construction Drum brakes use an internal expanding brake shoe with the lining attached,working within the confi nes of a rotating brake surface called a brake drum.项目内容Project 4 Acquaintance with AutomotiveChassis Construction Disc brakes emp

11、loy a brake disc that rotates with the wheel.The brake disc is usually referred to as a brake rotor(shown as Figure 4-11).项目内容Project 4 Acquaintance with AutomotiveChassis Construction项目内容Project 4 Acquaintance with AutomotiveChassis Construction Tires(shown as Figure 4-13)and wheels are important t

12、o vehicle ride,handling,and fuel economy项目内容Project 4 Acquaintance with AutomotiveChassis Construction The suspension components include the springs,axle,shock absorbers,arms and rods.项目内容Project 4 Acquaintance with AutomotiveChassis Construction项目内容Project 4 Acquaintance with AutomotiveChassis Cons

13、truction2.Translate the following words or phrases into Chinese.1）steering shaft 2）automatic transmission 3）chassis 4）universal joint 5）steering system 6）braking system7）service brake system 8）parking brake system3.Translate the following words or phrases into English.1）传动系统 2）手动变速器 3）差速器 4）后轮驱动 5）转

14、向盘 6）钢板弹簧7）制动蹄 8）悬架系统 9）制动踏板拓展材料Practical ReadingThe Introduction to the Electronically Controlled Air Suspension拓展内容借助专业词典，对电控空气悬架进行中英文互译。拓展材料 The electronically-controlled air suspension(ECAS)system allows different ride heights to be either manually or automatically selected.By changing the volum

15、e of air in each of the air springs,the system maintains ride height and quality regardless of load.System components are as follows:ASU-Air Supply Unit The ASU supplies clean dry air and distributes it to the air springs,which includes the following major parts.A compressor for supply of compressed

16、 air to the air springs.The compressor assembly includes a solenoid exhaust valve to enable air released from the springs to be discharged to atmosphere.An electronic control unit is for control of the ECAS system.A dryer/filter to ensure that the air supplied to the springs is clean and dry.Electri

17、cal solenoid valves for distribution of air to and from the springs,and to and from an air reservoir(if fitted).拓展材料Height Sensors Height sensors are mounted between the chassis and the axle.These provide a voltage signal to the ECU that varies as the distance between the chassis and the axle varies

18、,e.g.as happens when the vehicle is being loaded or unloaded.More precisely,the connecting rod and arm translate changes in the distance between the chassis and the axle into rotation of an electrical potentiometer inside the sensor body.As the potentiometer rotates so the output signal from it chan

19、ges.Air Springs The primary aim of the Air Spring is to have a spring element that ensures a constantly low natural frequency of the vehicle body,irrespective of load,thereby providing excellent ride comfort.The solution comprises the combined action of spring elements and in conjunction with ECAS control automatic level.Together they ensure that vehicle bodies are suspended flexibly and kept at a constant ride height whatever the load.拓展材料 谢谢观看！