新汽车专业英语读译教程 教学课件 宋进桂_ 4 u3ta
汽车专业英语课件(宋进桂)Chapter 2-7
Ultra-lean Combustion Mode. Under most normal driving
Chapter 2 Internal Combustion Engine 2.7 Gasoline direct injection
Two main operating modes of Volkswagen AG's fuel stratified injection (FSI) which uses more operating modes and FSI’s fuel-saving potential is shown in Figure 2-16. A typical pulse injection system with direct injection is given in Fig.2-17.
Chapter 2 Internal Combustion Engine 2.7 Gasoline direct injection
conditions, up to speeds of 120 km/h, the Mitsubishi GDI engine operates in ultra-lean combustion mode, resulting in less fuel consumption. In this mode, fuel injection occurs at the latter stage of the compression stroke and ignition occurs at an ultra-lean air-fuel ratio of 30-40. This operating mode is also called as stratified-charge mode. Superior Output Mode. When the GDI engine is operating with higher loads or at higher speeds, fuel injection takes place during the intake stroke. This optimizes combustion by ensuring a homogeneous, cooler air-fuel mixture which minimizes the possibility of engine knocking. This mode is also called as homogeneous-charge mode.
汽车专业英语电子课件Unit 4
Text B Principle and Construction
Fuel Tank Tank location and design are always a compromise with available space. Most automobiles have a single tank located in the rear of the vehicle. In the tank there is a sending unit which tells the gas gauge how much gas is in the tank. Fuel tanks today have internal baffles to prevent the fuel from splashing back and forth. All tanks have a fuel filler pipe, a fuel outlet line to the engine and a vent system. All fuel tanks must be vented. Before 1970, fuel tanks were vented to the atmosphere, emitting hydrocarbon emissions. Since 1970 all tanks are vented through a charcoal canister, into the engine to be burned before being released to the atmosphere.
Text B Principle and Construction
The fuel, which can be either gasoline or diesel is stored in a fuel tank. A fuel pump draws the fuel from the tank through fuel lines and delivers it through a fuel filter to fuel injector, then delivered to the cylinder chamber for combustion. If anyone of the parts in the system break down the engine will not run.
汽车专业英语课件(宋进桂)Chapter 2-6
2.6 Gasoline Electronic Fuel Injection System
New Words
assembly entrance deliver port subsystem
[ə'sembli] ['entrəns] [di'livə] [pɔ:t] ['sʌbsistim]
Chapter 2 Internal Combustion Engine 2.6 Gasoline Electronic Fuel Injection System
Fig.2-12 Fuel delivery system of a car
Chapter 2 Internal Combustion Engine 2.6 Gasoline Electronic Fuel Injection System
Chapter 2 Internal Combustion Engine 2.6 Gasoline Electronic Fuel Injection System
Engine load is transmitted to the computer by means of an intake manifold absolute pressure sensor. The sensor converts manifold vacuum into a small electrical signal. This input allows the computer to increase fuel supply when the engine is under load and needs a richer mixture, and decrease fuel supply when engine load is light. Every injection system has a temperature sensor to measure engine coolant temperature. Many injection systems have an additional sensor to measure the temperature of the incoming air. Some late model fuel injection systems monitor the amount of air entering the engine by using an airflow sensor（Fig.2-10）. The computer takes this input and compares it with engine RPM and manifold vacuum to determine the amount of fuel to inject. There are three types of airflow sensors, the heated wire, the air valve and the Karmann vortex.
汽车专业英语(宋进桂)Chapter4分析解析
['plʌndʒə] ['rəutəri]
n.活塞，柱塞，活动铁芯 a.旋转的，转动的
[spi'dɔmitə] n.(指汽车的)车速表，里程计 ['relivənt] a.有关的，切题的，恰当的
Chapter 4 Steering and Suspension Systems
4.1 Steering System
4.1.2 Types of Steering System There are two types of steering systems: manual steering and power steering systems. In the manual steering systems, driver does all the work of turning the steering wheel, steering gear, and tires. In the power steering systems, hydraulic or electric power-assisted steering is used to reduce the effort required by turning the steering wheel. There are three types of the steering gears in use: recirculating ball steering gear, worm-and-roller steering gear and rack-and-pinion steering gear. 4.1.3 Power Steering Systems Hydraulic lack-and-pinion power steering system. This system consists of mechanical rack-and-pinion steering gear, hydraulic working cylinders with working plungers, rotary slide valve, oil pump, pressure-limiting valve and oil reservoir (Figure 4-2).
汽车专业英语宋进桂PPT课件
Figure 6-1 Battery construction
第4页/共15页
Chapter 6 Automotive Electrical and Electronic Systems
6.1 Lead Acid Battery and Circuit
p r o t e c t i o n d e v i c e s Table 6-1 Circuit protection devices used for Toyota automotive wiring diaghrams
6.3 Starting System
Figure 6-7 Starter motor with planetary reduction gears.
第13页/共15页
Figure 6-8 Exploded view of a typical starter
第14页/共15页
感谢您的观看。
第15页/共15页
第1页/共15页
Chapter 6 Automotive Electrical and Electronic Systems
6.1 Lead Acid Battery and Circuit
protection devices
A lead-acid storage battery (Figure 6-1) is an electrochemical device that produces voltage and delivers electrical current. The battery is the primary "source" of electrical energy used in vehicles today. When charging, the battery converts electricity into chemical energy, and when discharging, it converts chemical energy into electricity, producing a current.
汽车专业英语(原书作者宋红英)第一～二章PPT课件
II. Text Explanation
In other words
In other words, they remain relatively constant or static. 换句话说，它们相对的稳定、静止。 In other words, we have adhered to scientific socialism. 也就是说，我们坚持了科学社会主义。
Automobile Structure
Unit one
Specialized English for Automobile
Contents
I. Pre-questions
II. Text Explanation III. Exercises
I. Pre-questions
Types of Modern Automobiles 1）cars 2）passenger cars 3）trucks 4）tractors and vehicle combination 5）special type vehicle 6）Self-dumping car 7）farm vehicle 8) off-road vehicle
II. Text Explanation
Brake system is a balanced set of mechanical and hydraulic devices used to retard the motion of the vehicle by means of friction. Hydraulic [haidrlik] adj. 液压的, 水力的 Retard [ritd] vt. 延迟, 使减速,阻碍 Friction [ frikn] n.摩擦, 摩擦力
汽车专业英语读译教程 (梁桂航 第3版 ) 习题与答案TEXT B
汽车专业英语读译教程(第3版)TEXT B课后练习题(EXERCISES)参考答案UNIT 1 AUTOMOTIVE BASICSTEXT B Automobile's History/ ・ Translate the following English names of car makers into Chinese:1.General Motors Corporation 通用汽车公司2.Ford Motor Co.福特汽车公司3.Chrysler Motors Corporation 克莱斯勒汽车公司4.Toyota Motor Corporation 丰田汽车公司5.Nissan Motor Co. Ltd.日产汽车公司6.Honda Motor Co. Ltd.本田汽车公司7.Mitsubishi Motors Corporation 三菱汽车公司8.Mercedes-Benz AG梅赛德斯-奔驰汽车公司9.BMW AG宝马汽车公司10.Volkswagen AG群众汽车公司11.Audi AG奥迪汽车公司12.Suzuki Motor Corporation 铃木汽车公司13.Isuzu Motors Ltd.五十铃汽车公司14.Mazda Motor Corporation 马自达汽车公司15.Volvo Car Corporation 沃尔沃轿车公司16.Volvo Bus Corporation 沃尔沃巴士公司17.Porsche AG保时捷汽车公司//. Translate the following English names of cars into Chinese:1.Chevrolet Corvette; Buick Century; Cadillac Deville 雪佛兰克尔维特；别克世纪；凯迪拉克德维尔2.Ford Mustang; Ford Mendeo; Lincoln Town Car 福特野马；福特蒙迪欧；林肯城市3.Dodge Caravan; Jeep Grand Cherokee; New Yorker 道奇捷龙；吉普大切诺基；纽约人ndcruiser; Camry; Crown; Lexus陆地巡洋舰；凯美瑞；皇冠；雷克萨斯1.What are the advantages of continuously variable transmission?Because there are no gears to tie a given road speed directly to a given engine speed, the CVT can vary the engine speed as needed to access maximum power as well as maximum fuel efficiency. This allows the CVT to provide quicker acceleration than a conventional automatic or manual transmission while delivering superior fuel economy.2.What are the main components of automated manual transmission?Transmission control ECU, clutch activator, transmission actuator, operators, and sensorsII. Translate the following paragraph into Chinese ：The basic technical criteria for continuously variable transmissions are size, weight, transmission-ratio range, transfer efficiency, noise emissions and installation possibilities. With regard to these aspects, mechanical continuously variable transmissions, in the form of chain-driven transmission, have provided the best results so far.评判无级变速器的基本技术标准是尺寸、重量、传动比范围、传动效率、噪声排放和安装可能性。
教学课件 汽车专业英语(第二版)
throughout the cylinder area to keep the
水套
engine cool. There is also a drilled
internally
passageway within some blocks for the
内部地
camshaft. Many oil holes are drilled
Aish
汽车专业英语
Vocabulary Study Translation Skills Exercises
Chapter One Engine
➢ Unit 1 ➢ Unit 2 ➢ Unit 3
➢ Unit 4
➢ Unit 5
Engine Mechanical EFI System Engine Cooling and Lubrication
built within the block. These passageways, coolant 冷却液
also known as water sockets, surround the
oil pan 机油盘
cylinders. They allow coolant to circulate water socket
harmonic balancer 扭转减震器 timing gear 正时齿轮 chain belt 链(条)传动带
7. Valve Drive Mechanism It is used to transfer the camshaft lift The valve drive mechanism consists of the lifters, the pushrods and the rocker arms Lifters change the rotary motion of the camshaft to reciprocating motion to open and close the valve. Hydraulic lifters are used to reduce noise and control the valve clearance on many engines. They absorb the valve train clearance by using oil pressure inside the lifter body. Pushrods are used only on engines that have the camshaft placed within the block. Overhead camshafts do not need pushrods. Rocker arms are designed to change the direction of the cam lifting force.
汽车专业英语全套课件完整版ppt教学教程最新最全
throughout the cylinder area to keep the
水套
engine cool. There is also a drilled
internally
passageway within some blocks for the
内部地
camshaft. Many oil holes are drilled
built within the block. These passageways, coolant 冷却液
also known as water sockets, surround the
oil pan 机油盘
cylinders. They allow coolant to circulate water socket
(气缸体) 2- cylinder
(气缸) 3- crankcase area
（曲轴箱部分）
2. Cylinder Liners
The purpose of using a liner is that, if the cylinder is damaged, the liner can be removed and replaced rather easily. There
liner（发动机)气 缸套
remove 拆下 replace 取代 seal 密封，封条 leak 使渗漏 valve 气门；阀 port 孔管道 exhaust 排气 in addition 另外 intake 进气，吸入 manifold 歧管 spark 火花 plug 塞子 injector 喷油器 install 安装
consists of piston, compression rings, oil control rings, piston pin and connecting rod.(1)piston: Piston fits
《汽车专业英语读译教程》参考译文-课文A-UNIT 4 TEXT B
第4单元课文B Motronic系统的工作原理在这一部分中，我们来考察一下Motronic系统的工作情况，从而理解Motronic系统是怎样控制喷油、点火和怠速旁通系统，以便获取理想的发动机管理效果的。
1.起动控制1）起动时的燃油控制在大多数Motronic系统中，起动加浓燃油由进气道喷油器而不是单独的起动喷油器/温控定时开关来提供的。
对于起动控制，重要的输入有转速和发动机温度。
控制单元监视着起动转速，还监视着起动开始之后转动的圈数。
喷油脉冲比通常情况下要长些。
而在发动机低温时，控制单元对每一转都要输送几个较短的喷油脉冲，以便改善起动性能。
记住，在一个脉冲周期（即曲轴转动200ms的时间）中有10个毫秒级脉冲。
为了防止溢油，在经过精确的圈数之后，或者在发动机达到与温度相关的一定起动转速（如200~300r/min）之后，燃油量将会下降。
2）起动时的点火正时控制一台低温发动机以低转速起动，其点火正时将会控制在上止点（TDC）附近。
对于正常的起动转速，大的点火提前角会使发动机点火过早，从而损坏起动机。
另外，如果能起动的话，起动也将会很困难。
然而，一台低温发动机以较高转速起动，为了更好地起动，要将点火正时提前。
对于热起动，或在高的进气温度下起动，由于在活塞以起动转速下上升时，热的气缸就能着火，所以应该推迟点火正时。
推迟点火能够防止高压缩比发动机出现爆燃，这种爆燃在起动时会被起动机噪声所掩盖。
3）起动时的空气控制就像在L-Jetronic系统中一样，由于闭合角信号的加长，通常怠速稳定器的开度会加大，以便提供冷态起动所需的额外空气。
2.起动后控制起动后阶段（即在松开钥匙，使钥匙转离“起动”位置之后，发动机保持运转的5~30s 时间）受发动机温度以及控制单元内的定时电路的控制。
发动机温度越低，喷油量就越大。
发动机温度越低，喷油定时越早。
根据起动温度和起动后经过的时间，起动后校正加浓逐渐减小。
怠速稳定器维持转速不变。