新能源汽车专业英语最新版精品课件第8章
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新能源汽车专业英语1-1
The decline of the electric vehicle was brought about by several major developments, such as a better system of roads in America By the 1920s, lower gasoline car price than electric cars due to the initiation of mass production of internal combustion engine vehicles by Henry Ford, the discovery of Texas crude oil and the invention of the electric starter in 1912 eliminating the need for the hand crank*1.
1.1 The Development of Electric Vehicles
The early electric vehicles, such as the 1902 Wood's Phaeton (Figure 1.1), were little more than electrified horseless carriages. The Phaeton had a range of 18 miles, a top speed of 14 mph and cost $2,000.
疑难句子分析
*1 The decline of the electric vehicle was brought about by several major developments, such as a better system of roads in America By the 1920s, lower gasoline car price than electric cars due to the initiation of mass production of internal combustion engine vehicles by Henry Ford, the discovery of Texas crude oil and the invention of the electric starter in 1912 eliminating the need for the hand crank.
1.1 The Development of Electric Vehicles
The early electric vehicles, such as the 1902 Wood's Phaeton (Figure 1.1), were little more than electrified horseless carriages. The Phaeton had a range of 18 miles, a top speed of 14 mph and cost $2,000.
疑难句子分析
*1 The decline of the electric vehicle was brought about by several major developments, such as a better system of roads in America By the 1920s, lower gasoline car price than electric cars due to the initiation of mass production of internal combustion engine vehicles by Henry Ford, the discovery of Texas crude oil and the invention of the electric starter in 1912 eliminating the need for the hand crank.
汽车专业英语电子课件Unit 8
An auto air conditioning system automatically regulates the temperature of the interior to a set temperature. The Fig.8.2 shows how an air conditioning system work. When the operating mode is set to AUTO and the temperature is set, the sensors detect the ambient air temperature, interior temperature, and the set temperature. Then, the computer automatically controls the outlet temperature, blower speed, and the outlet position in order to attain the set temperature.
Text A Air Conditioning
Text A Air Conditioning
Vehicle air conditioning uses both the heater core and the evaporator to regulate the temperature in accordance with the opening of the air-mix damper and the opening of the water valve.
Unit 8
Body Eletioning
Since the advent of the automotive air conditioning system in the 1940’s, many things have undergone extensive change. Improvements, such as computerized automatic temperature control (which allow you to set the desired temperature and have the system adjust automatically) and improvements to overall durability, have added complexity to today’s modern air conditioning system.
Text A Air Conditioning
Text A Air Conditioning
Vehicle air conditioning uses both the heater core and the evaporator to regulate the temperature in accordance with the opening of the air-mix damper and the opening of the water valve.
Unit 8
Body Eletioning
Since the advent of the automotive air conditioning system in the 1940’s, many things have undergone extensive change. Improvements, such as computerized automatic temperature control (which allow you to set the desired temperature and have the system adjust automatically) and improvements to overall durability, have added complexity to today’s modern air conditioning system.
专业英语课件Electric Vehicles 电动汽车
• Throttle by wire:
– This system helps accomplish vehicle propulsion by means of an electronic throttle without any cables from the accelerator pedal to the throttle valve of the engine. In electric vehicles, this system controls the electric motors by sensing the accelerator pedal input and sending commands to the power inverter modules.
dollars), CalTech’s cost $600
EVs 101
1970 - Clean Air Car Race
• 50+ cars raced from MIT to Caltech using many alternative powertrains
• CalTech – Regenerative braking • Boston Electric Car Club – Battery
• 1910’s
– Mass-produced Ford cars undercut hand-built EV’s
– EV’s persist as status symbols and utility vehicles until Great Depression
Ford Electric #2
EVs 101
Kinds of Electric Vehicles
Locomotives
– This system helps accomplish vehicle propulsion by means of an electronic throttle without any cables from the accelerator pedal to the throttle valve of the engine. In electric vehicles, this system controls the electric motors by sensing the accelerator pedal input and sending commands to the power inverter modules.
dollars), CalTech’s cost $600
EVs 101
1970 - Clean Air Car Race
• 50+ cars raced from MIT to Caltech using many alternative powertrains
• CalTech – Regenerative braking • Boston Electric Car Club – Battery
• 1910’s
– Mass-produced Ford cars undercut hand-built EV’s
– EV’s persist as status symbols and utility vehicles until Great Depression
Ford Electric #2
EVs 101
Kinds of Electric Vehicles
Locomotives
汽车专业英语教程多媒体教学课件Unit 8 section 1
汽车电气设备
Unit 8 Automotive Chassis
汽车底盘
The automotive chassis a framework used to assemble auto components on it， it is composed of power train system， running gear ， steering system and braking system．Its function is to accept motive power of engine ， and to make
2A3ssembly；上控制阀体总成 7—Control Valve Channel
Plate Assembly；控制阀体油
道盖2板4 总成
8—Control Solenoid Valve
Assembly；电磁控制阀总成
9—Manual Valve；手动阀
10—manual Shift Detent
6—Parking Brake；驻车制动器 7—Driveshaft；传动轴 8—Drive Axle；驱动桥 9—Rear Suspension；后悬架 10—Rear Wheel；后轮 11—Frame；车架 12—Steering Wheel；转向盘
Fig. 8-1
3 2 1
4 5
6
13
12
9—Hub；轮毂 10—Transfer case；分 动器
11—Transmission；变 速器
12—Driveshaft；传动轴 13—Front Drive Axle； 前驱动桥
14—Brake；制动器
Section 1 Power Train System
Unit 8 Automotive Chassis
汽车底盘
The automotive chassis a framework used to assemble auto components on it， it is composed of power train system， running gear ， steering system and braking system．Its function is to accept motive power of engine ， and to make
2A3ssembly；上控制阀体总成 7—Control Valve Channel
Plate Assembly；控制阀体油
道盖2板4 总成
8—Control Solenoid Valve
Assembly；电磁控制阀总成
9—Manual Valve；手动阀
10—manual Shift Detent
6—Parking Brake；驻车制动器 7—Driveshaft；传动轴 8—Drive Axle；驱动桥 9—Rear Suspension；后悬架 10—Rear Wheel；后轮 11—Frame；车架 12—Steering Wheel；转向盘
Fig. 8-1
3 2 1
4 5
6
13
12
9—Hub；轮毂 10—Transfer case；分 动器
11—Transmission；变 速器
12—Driveshaft；传动轴 13—Front Drive Axle； 前驱动桥
14—Brake；制动器
Section 1 Power Train System
新能源汽车专业英语最新版精品课件第4章第3节
Figure 4.20 Positive split mode
4.2 Passenger Car Hybrid Drive 乘用车混合动 力传动系统
· Negative Split Mode. This mode is used during highway
driving when the ICE has to be on but the HV battery pack does not need to be charged. The generator motor is being used to consume electrical energy to reduce engine speed. The traction motor can operate as a motor or a generator.
4.2 Passenger C4.19 Series mode
Operation The Ford hybrid
transaxle operates in one of four modes, as follows: ·Series Mode. When the vehicle is stationary and the ICE is running, the transaxle will enter this mode. The ICE is running to charge the batteries or for climate control reasons. See Figure 4.19.
·Acceleration. During acceleration and other high-load
conditions, such as climbing a hill, current from the battery module is converted to alternating current by the MDM (motor drive module) and supplied to the IMA motor, which then functions as a motor. Both the gasoline engine and the electric motor work together to maximize vehicle acceleration.
4.2 Passenger Car Hybrid Drive 乘用车混合动 力传动系统
· Negative Split Mode. This mode is used during highway
driving when the ICE has to be on but the HV battery pack does not need to be charged. The generator motor is being used to consume electrical energy to reduce engine speed. The traction motor can operate as a motor or a generator.
4.2 Passenger C4.19 Series mode
Operation The Ford hybrid
transaxle operates in one of four modes, as follows: ·Series Mode. When the vehicle is stationary and the ICE is running, the transaxle will enter this mode. The ICE is running to charge the batteries or for climate control reasons. See Figure 4.19.
·Acceleration. During acceleration and other high-load
conditions, such as climbing a hill, current from the battery module is converted to alternating current by the MDM (motor drive module) and supplied to the IMA motor, which then functions as a motor. Both the gasoline engine and the electric motor work together to maximize vehicle acceleration.
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
汽车专业英语教程多媒体教学课件Unit 8 section 2
Section 2 Running Gear
行驶系
Automobile running gear is an assembly to bear and install various parts，
transmits and supports various loads in and below vehicle，so that guarantees normal running of vehicle．The running gear is constituted by frame （ automobile body），axle，suspension， vehicle wheel ， etc. as is shown in Figure 8-16．
4 5
6
Fig. 8-20
11，13—Side Member；纵粱 12，14—Cross Member；横梁
Ladder-Type Frame 12 11
13 14 X Frame
Platform Type Frame
Backbone-Type Frame
Fig. 8-20
There are two basic types of axle：dead axles and live axle．The dead axle does not rotate，the wheel rotates on it．Fig. 8-
14—Steering Arm；转 向节臂
15—U-Bolt； U形螺栓
5 4
3
2 1
Fig. 8-18
6
7 8 9 10
1—Stabilizer Bar；横向稳 定杆
2—Lower Arm；下横臂 3—Front Suspension；前 悬架
行驶系
Automobile running gear is an assembly to bear and install various parts，
transmits and supports various loads in and below vehicle，so that guarantees normal running of vehicle．The running gear is constituted by frame （ automobile body），axle，suspension， vehicle wheel ， etc. as is shown in Figure 8-16．
4 5
6
Fig. 8-20
11，13—Side Member；纵粱 12，14—Cross Member；横梁
Ladder-Type Frame 12 11
13 14 X Frame
Platform Type Frame
Backbone-Type Frame
Fig. 8-20
There are two basic types of axle：dead axles and live axle．The dead axle does not rotate，the wheel rotates on it．Fig. 8-
14—Steering Arm；转 向节臂
15—U-Bolt； U形螺栓
5 4
3
2 1
Fig. 8-18
6
7 8 9 10
1—Stabilizer Bar；横向稳 定杆
2—Lower Arm；下横臂 3—Front Suspension；前 悬架
新能源汽车英语讲稿ppt课件
internal combustion energy, or
even higher; the chemical reaction
progress of fuel-cell does not
produce harmful exhaust; running
smoothly, no noise, so the fuel-cell
transport vehicles.
Advantage: Gas single component,
high purity, uniform mixing with air
and burned completely, CO and
particulate emissions are low, the
The development trend of automobile industry
clean-energy vehicle
Classificatio n
Development Status
Problems Summary
2
Classification
Hybrid Electric Vehicle
Methanolfueled car
Pure Electric Vehicle
cleanenergy vehicle
Natural gas and liquefied petroleum gas
vehicle
Fuel-cell Vehicle
Hydrogenpowered Vehicle
3
Development Status
engine starting at low temperature
and better running performance.
汽车专业英语 PPT-Unit8
6．A cylinder pressure gauge is an important tool to diagnose the cylinder pressure in the engine． ( E )
Part One Warming ups of auto repair and detect and make a match．
1．A car was hung in the repair shop, maybe there is something wrong with the chassis． ( C )
2．This is an auto emergency kit, and we can see many tools such as wench, screwdriver． ( F )
√ thousand, million) were ever made．
Part Two Listening
Task 1 :
Listen to a challenging passage and decode the message by finding out the correct choices in the brackets according to what you have heard．
wax hood injector sound decision face with broken down tip consult organization inquire resolution
v． 给……上蜡 n． 汽车发动机罩 n． 喷油器, 喷射器 adj．合理的; 可靠的; 健全的, 健康的 n． 决定, 决心; 决议
A. diagnostic tester B. program card slot C. engine performances analyzer D. auto multi-meter E. oxygen sensor F. test cable G. auto faults decoder H. four-channel oscilloscope I. auto diagnostic computer J. temperature sensor
Part One Warming ups of auto repair and detect and make a match．
1．A car was hung in the repair shop, maybe there is something wrong with the chassis． ( C )
2．This is an auto emergency kit, and we can see many tools such as wench, screwdriver． ( F )
√ thousand, million) were ever made．
Part Two Listening
Task 1 :
Listen to a challenging passage and decode the message by finding out the correct choices in the brackets according to what you have heard．
wax hood injector sound decision face with broken down tip consult organization inquire resolution
v． 给……上蜡 n． 汽车发动机罩 n． 喷油器, 喷射器 adj．合理的; 可靠的; 健全的, 健康的 n． 决定, 决心; 决议
A. diagnostic tester B. program card slot C. engine performances analyzer D. auto multi-meter E. oxygen sensor F. test cable G. auto faults decoder H. four-channel oscilloscope I. auto diagnostic computer J. temperature sensor
新能源汽车专业英语最新版精品课件第2章第2节
module pack electrode electrolyte separator parameter
['mɒdju:l] [pæ k] [ɪ'lektrəʊd] [ɪ'lektrəlaɪt] ['sepəreɪtə(r)] [pə'ræmɪtə(r)]
回顾
ampere-hour (Ah) capacity calendar life cycle life deep-cycle battery depth of discharge (DoD) double-layer capacitor
负极
nickel-cadmium (Ni-Cd) battery 镍镉(Ni-Cd)电池
2.2 Construction and Principle 结构与原理
nickel-metal hydride (NiMH) battery oxidation-reduction reaction
participate in
Chapter 2 Power Batteries of EVs 电动汽车动力电池
本章学习内容 本章学习目标 本章难点重点
2.1 Basic Terminology and Types of Power Batteries 动力电池的基本术语和类型（2学时） 2.2 Construction and Principle 结构与原理 2.3 Battery Management and Cooling Systems 电池管 理与冷却系统（2学时） 2.4 Battery Charging Technology 电池充电技术 2.5 Service and Testing 维护与测试（2学时）
回顾
Battery Terminology
汽车专业英语教程多媒体教学课件Unit 8 section 3
目前使用的转
向机构有以下几 种：“齿轮齿条 式”转向器是大 部分生产厂家采 用的形式；“循 环球式”是过去 最受欢迎的形式， 依靠循环球在蜗 杆和滚道间滚动； 另一种在进口车 中曾经流行的形 式是“蜗轮齿扇 式”；其他传动 机构有“曲柄指 销式”和“蜗轮 蜗杆式”。
In automobile steering system，the ste-
On most cars，it takes three to four
complete revolutions of the steering
wheel to make the wheels turn from lock to lock．The steering ratio is the
汽车转向系统
可按转向的能源 不同分为手动转 向系统和动力转 向系统两类。手 动转向系统是依 靠驾驶员操纵转 向盘的转向力来 实现车轮转向的， 主要由转向操纵 机构（包括转向 盘、转向轴等）、 转向器、转向传 动机构（包括转 向横拉杆、转向 节臂、转向节、 转向轮等）组成， 如图8-25所示。
Under the control of the driver ， the
Fig. 8-28
转向柱总成
The function of steering gear is that
converts the rotational motion of the
steering wheel into the linear motion needed to turn the wheels，and provides a gear reduction，making it easier to turn the wheels．
steering wheel gear assembly in basic of manual steering system（see Figure 8-26）．The power steering system is used in general in current automobile．
电动汽车电力专业英语 英文PPT
电力中外101 高九千方 李斌
一、Background 二、Definition 三、Classification
四、Working principle 五、Advantages and disadvanges 六、Practical app酸雨
How do we solve that?
❖ 电动汽车是指以车载电源为动力， 用电机驱动车轮行驶，符合道路交 通、安全法规各项要求的车辆。由 于对环境影响相对传统汽车较小， 其前景被广泛看好。
Large-scale electric transport
Metros
Trams
electric locomotives
Trolleybuses
Seden
（ FCEV ）
Current 电流
Storage battery
蓄电池
Power Conditioner 电力调节器
电动车工作原理
Motor 电动机
power transmission system 动力传动系统
To drive the car
驱动汽车行驶
1
non-pollution, low noise
EV Bus
Small scale electric vehicles
电动汽车类型
蓄电池 电动汽车
Battery Electric Vehicle
（ BEV ）
混合动力汽车
Hybrid Electric Vehicle
（ HEV ）
燃料电池汽车
FUEL CELL Electric Vehicle
Electric vehicles
!!!
An electric vehicle (EV), also referred to as an electric drive vehicle, uses one or more electric motors or traction motors for propulsion.
一、Background 二、Definition 三、Classification
四、Working principle 五、Advantages and disadvanges 六、Practical app酸雨
How do we solve that?
❖ 电动汽车是指以车载电源为动力， 用电机驱动车轮行驶，符合道路交 通、安全法规各项要求的车辆。由 于对环境影响相对传统汽车较小， 其前景被广泛看好。
Large-scale electric transport
Metros
Trams
electric locomotives
Trolleybuses
Seden
（ FCEV ）
Current 电流
Storage battery
蓄电池
Power Conditioner 电力调节器
电动车工作原理
Motor 电动机
power transmission system 动力传动系统
To drive the car
驱动汽车行驶
1
non-pollution, low noise
EV Bus
Small scale electric vehicles
电动汽车类型
蓄电池 电动汽车
Battery Electric Vehicle
（ BEV ）
混合动力汽车
Hybrid Electric Vehicle
（ HEV ）
燃料电池汽车
FUEL CELL Electric Vehicle
Electric vehicles
!!!
An electric vehicle (EV), also referred to as an electric drive vehicle, uses one or more electric motors or traction motors for propulsion.
汽车使用英语第八课
❖ 5、Only after the vehicle speed was over 20 km/h did the trouble occur.
只有当车速在20 km/h以上的时候，故障才出现。
❖ 6、It is the experience accumulated little by little during our maintenance career that make a real sense.
[7ri:in5stC:l]
v. 重新安装
学习目标
❖ 1、知识目标： 掌握发动机实际维修的操作流程。
❖ 2、技能目标： 掌握英语描述汽车的实际维修过程的习惯
用法。
Notes to Text
❖ 1、According to what the driver said, firstly had a drive test which confirmed the driver’s description that during acceleration, the output power of the engine is insufficient likely caused by poor fuel supply. 根据司机的描述，首先开车测试，证明了司机所说，在加速 过程中，发动机的输出动力不足，好像是由燃油供应不足引 起。
the dynamic data stream. The result was within the accepted range. At this time, all of us were confused, but after consulting with other staff, we were still suspicious of the fuel supply. So we linked a fuel-pressure gauge to the fuel rail again and drove the car to have a road test. During acceleration, we found that the gauge arm dropped a little. After coming back, we disassembled the fuel pump from the fuel tank and found that the screen was seriously clogged. At last, we talked with the driver knowing that his car has run for more than 200,000 km without any services for the fuel tank.
只有当车速在20 km/h以上的时候，故障才出现。
❖ 6、It is the experience accumulated little by little during our maintenance career that make a real sense.
[7ri:in5stC:l]
v. 重新安装
学习目标
❖ 1、知识目标： 掌握发动机实际维修的操作流程。
❖ 2、技能目标： 掌握英语描述汽车的实际维修过程的习惯
用法。
Notes to Text
❖ 1、According to what the driver said, firstly had a drive test which confirmed the driver’s description that during acceleration, the output power of the engine is insufficient likely caused by poor fuel supply. 根据司机的描述，首先开车测试，证明了司机所说，在加速 过程中，发动机的输出动力不足，好像是由燃油供应不足引 起。
the dynamic data stream. The result was within the accepted range. At this time, all of us were confused, but after consulting with other staff, we were still suspicious of the fuel supply. So we linked a fuel-pressure gauge to the fuel rail again and drove the car to have a road test. During acceleration, we found that the gauge arm dropped a little. After coming back, we disassembled the fuel pump from the fuel tank and found that the screen was seriously clogged. At last, we talked with the driver knowing that his car has run for more than 200,000 km without any services for the fuel tank.
汽车专业英语Unit8
电动助力转向最早应用在微型汽车上，1988年2月日本铃木公司首次在其Cervo车上 装备，目前电动助力转向系统主要应用在轿车上，并逐渐从微型轿车向更大型轿车和 商务车发展]。其优点有： 1 EPS能在各种行驶工况下提供最佳助力，减小由路面不平所引起的对转向系统 的扰动，改善汽车的转向特性，减轻汽车低速行驶时的转向操纵力，提高汽车高速行 驶时的转向稳定性，进而提高汽车的主动安全性。并且可通过设置不同的转向手力特 性来满足不同使用对象的需要。 2 EPS只在转向时电动机才提供助力(不像HPS，即使在不转向时，油泵也一直运 转)，因而能减少燃料消耗。 3 由于直接由电动机提供助力，电动机由蓄电池供电，因此EPS能否助力与发动 机是否起动无关，即使在发动机熄火或出现故障时也能提供助力。 4 EPS取消了油泵、皮带、皮带轮、液压软管、液压油及密封件等，其零件比 HPS大大减少，因而其质量更轻、结构更紧凑，在安装位置选择方面也更容易，并且 能降低噪声。 5 EPS没有液压回路，比HPS更易调整和检测，装配自动化程度更高，并且可以 通过设置不同的程序，快速与不同车型匹配，因而能缩短生产和开发周期。 6 EPS不存在渗油问题，消除了液压助力中液压油泄漏问题，可大大降低保修成 本，减小对环境的污染，改善了环保性。 7 EPS比HPS具有更好的低温工作性能。 电动助力转向目前已成为世界汽车技术发展的研究热点之一。
1.方向盘 2.转向轴 3.转向中间轴 4.转 向油管 5.转向油泵 6.转向油罐 7.转向节臂 8.转向 横拉杆 9.转向摇臂 10.整体式转向器 11.转向直拉杆 12. 转向减振器
虽然传统转向系统工作最可靠，但是也存在很多固有的缺 点，传统转向系统由于方向盘和转向车轮之间的机械连接 而产生一些自身无法避免的缺陷：①汽车的转向特性受驾 驶员驾驶技术的影响严重；②转向传动比固定，使汽车转 向响应特性随车速、侧向加速度等变化而变化，驾驶员必 须提前针对汽车转向特性幅值和相位的变化进行一定的操 作补偿，从而控制汽车按其意愿行驶。这就变相地增加了 驾驶员的操纵负担，使汽车转向行驶存在很大的不安全隐 患；③液压助力转向系统经济性差，一般轿车每行驶一百 公里要多消耗0.3~0.4升的燃料；另外，存在液压油泄漏 问题，对环境造成污染，在环保性能被日益强调的今天， 无疑是一个明显的劣势。
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8.1 Overview of Fuel Cell technology 燃料电池技术概述 Figure 8.1 A schematic diagram of a proton exchange membrane fuel cell
8.1 Overview of Fuel Cell technology 燃料电池技术概述
8.1 Overview of Fuel Cell technology 燃料电池技术概述
·Catalyst Layers. There is one catalyst layer on either side of the membrane. It is on the catalyst surface where the electrochemical reactions take place*1. The most commonly used catalyst is platinum or platinum alloy. The anode, cathode, membrane, and two catalyst layers are usually sealed together to form a single membrane electrode assembly (MEA).
diffuse durability
humidifier humidity oxidant phosphoric platinum porous promising
[dɪ'fju:s] [ֽdjʊərə'bɪlətɪ]
vi.传播，分散 n.耐久性，持久性
[hju:'mɪdɪfaɪə(r)] n.增湿器，加湿器
Figure 8.2 A fuel-cell stack
8.1 Overview of Fuel Cell technology 燃料电池技术概述
Operation of Fuel Cell In operation, hydrogen gas is fed to the fuel cell. It
Chapter 8 Fuel Cell Powered Hybrid 燃料电池汽车
本章学习内容
8.1 Overview of Fuel Cell technology 燃料电池技术概述 Classification, Construction,Operation
8.2 Fuel Cell Electric Vehicle and Fuel Cell Hybrid Electric Vehicle 燃料电池电动汽车与燃料电 池混合动力电动汽车Components,Layout,GMHydroGen4
8.1 Overview of Fuel Cell technology 燃料电池技术概述
8.1.1 Classification of Fuel Cell
Many types of fuel cell are available, such as proton exchange membrane (polymer electrolyte membrane) fuel cell, solid oxide fuel cell, phosphoric acid fuel cell, alkaline fuel cell, and molten carbonate fuel cell. For vehicle applications, the proton exchange membrane fuel cell (PEMFC) is considered to be the most promising. This is because it has high power density, long life, and low corrosion, and operates in a reasonable temperature range（80℃ 100℃）.
本章学习目标
1. 掌握燃料电池的结构原理； 2. 了解燃料电池电动汽车的布置；
本章难点重点
重点：燃料电池的结构及工作原理 难点：燃料电池的构造
8.1 Overview of Fuel Cell technology 燃料电池技术概述
New Words and Phrases
alloy anode atmospheric carbonate conductivity corrosion diagram
diffuses through the gas diffusion layer and the anode and comes into contact with the catalyst surface. On the catalyst surface, electrochemical reactions take place. The hydrogen is split into electrons (e-) and hydrogen protons (H+). The flow of electrons from the anode to the cathode, and through the bipolar plates, forms electric current, which is used to drive an external load, such as an electric motor or a bulb. The hydrogen protons pass through the proton exchange membrane and interact with the electrons and oxygen in an electrochemical process at the catalyst surface on the cathode side.
·Electrolyte. The PEMFC uses proton exchange membrane as the electrolyte. The requirements for the membrane are high proton conductivity, high chemical and thermal stability, good durability, and low cost. The membrane currently in wide use is made of perfluorosulfonate (全氟磺酸盐) material.
[hju:ˈmɪdəti]
n.湿度
['ɒksɪdənt]
n.氧化剂
[fɒs'fɒrɪk]
adj.磷的，含磷的
ห้องสมุดไป่ตู้
['plætɪnəm]
n.铂，白金
['pɔ:rəs]
adj.能穿透的，多孔性的
['prɒmɪsɪŋ]
adj.有前途的，有希望的
8.1 Overview of Fuel Cell technology 燃料电池技术概述
8.1 Overview of Fuel Cell technology 燃料电池技术概述
These elements above mentioned form an individual cell. A fuel-cell stack is made up of hundreds of individual cells connected in series. The fuel cells are placed end to end in the stack, much like slices in a loaf of bread, as shown in Figure 8.2. Automotive fuel-cell stacks contain more than 400 cells in their construction.
[ֽælɔɪ]
n.合金
['ænəʊd]
n.阳极
[ֽætməs'ferɪk] adj.大气的
['kɑ:bəneɪt]
n.碳酸盐
[ֽkɒndʌk'tɪvətɪ] n.传导性，导电性
[kə'rəʊʒn] ['daɪəgræm]
n.腐蚀，侵蚀 n.图表，图解，示意图
8.1 Overview of Fuel Cell technology 燃料电池技术概述
8.1 Overview of Fuel Cell technology 燃料电池技术概述
A fuel cell is a device that directly converts the chemical energy of a fuel into electrical energy, in the form of low-voltage direct current electricity. The most common fuel used in the fuel cell is hydrogen (H2). Fuel cells that convert the chemical energy of methanol (CH3OH) directly into electrical energy have also been developed. The oxidant for the fuel cell is usually atmospheric oxygen (O2).
8.1 Overview of Fuel Cell technology 燃料电池技术概述
·Bipolar Plates. These are commonly made of graphite or conducting metal (such as coated titanium). Gas flow channels are machined into the plates to provide inlets for the hydrogen gas and air, as well as outlets for excess hydrogen gas for recirculation and for water produced in the fuel cell.