Automobile Brake System汽车制动系统
The braking system is the most important system in cars. If the brakes fail, the result can be disastrous. Brakes are actually energy conversion devices, which convert the kinetic energy (momentum) of the vehicle into thermal energy (heat).When stepping on the brakes, the driver commands a stopping force ten times as powerful as the force that puts the car in motion. The braking system can exert thousands of pounds of pressure on each of the four brakes.
Two complete independent braking systems are used on the car. They are the service brake and the parking brake.
The service brake acts to slow, stop, or hold the vehicle during normal driving. They are foot-operated by the driver depressing and releasing the brake pedal. The primary purpose of the brake is to hold the vehicle stationary while it is unattended. The parking brake is mechanically operated by when a separate parking brake foot pedal or hand lever is set.
The brake system is composed of the following basic compone nts: the “master cylinder” which is located under the hood, and is directly connected to the brake pedal, converts driver foot’s mechanical pressure into hydraulic pressure. Steel “brake lines” and flexible “brake hoses” connect the master cylinder to the “slave cylinders” located at each wheel. Brake fluid, specially designed to work in extreme conditions, fills the system. “Shoes” and “pads” are pushed by the slave cylinders to contact the “drums” and “rotors” thus causing drag, which (hopefully) slows th e car.
The typical brake system consists of disk brakes in front and either disk or drum brakes in the rear connected by a system of tubes and hoses that link the brake at each wheel to the master cylinder (Figure).
Basically, all car brakes are friction brakes. When the driver applies the brake, the control device forces brake shoes, or pads, against the rotating brake drum or disks at wheel. Friction between the shoes or pads and the drums or disks then slows or stops the wheel so that the car is braked.
In most modern brake systems (see Figure 15.1), there is a fluid-filled cylinder, called master cylinder, which contains two separate sections, there is a piston in each section and both pistons are connected to a brake pedal in the driver’s compartment. W hen the brake is pushed down, brake fluid is sent from the master cylinder to the wheels.
At the wheels, the fluid pushes shoes, or pads, against revolving drums or disks. The friction between the stationary shoes, or pads, and the revolving drums or disks slows and stops them. This slows or stops the revolving wheels, which, in turn, slow or stop the car.
The brake fluid reservoir is on top of the master cylinder. Most cars today have a transparent r reservoir so that you can see the level without opening the cover. The brake fluid level will drop slightly as the brake pads wear. This is a normal condition and no cause for concern. If the level drops noticeably over ashort period of time or goes down to about two thirds full, have your brakes checked as soon as possible. Keep the reservoir covered except for the amount of time you need to fill it and never leave a cam of brake fluid uncovered. Brake fluid must maintain a very high boiling point. Exposure to air will cause the fluid to absorb moisture which will lower that boiling point.
The brake fluid travels from the master cylinder to the wheels through a series of steel tubes and reinforced rubber hoses. Rubber hoses are only used in places that require flexibility, such as
at the front wheels, which move up and down as well as steer. The rest of the system uses non-corrosive seamless steel tubing with special fittings at all attachment points. If a steel line requires a repair, the best procedure is to replace the compete line. If this is not prac tical, a line can be repaired using special splice fittings that are made for brake system repair. Y ou must never use copper tubing to repair a brake system. They are dangerous and illegal.
Drum brakes, it consists of the brake drum, an expander, pull back springs, a stationary back plate, two shoes with friction linings, and anchor pins. The stationary back plate is secured to the flange of the axle housing or to the steering knuckle. The brake drum is mounted on the wheel hub. There is a clearance between the inner surface of the drum and the shoe lining. To apply brakes, the driver pushes pedal, the expander expands the shoes and presses them to the drum. Friction between the brake drum and the friction linings brakes the wheels and the vehicle stops. To release brakes, the driver release the pedal, the pull back spring retracts the shoes thus permitting free rotation of the wheels.
Disk brakes, it has a metal disk instead of a drum. A flat shoe, or disk-brake pad, is located on each side of the disk. The shoes squeeze the rotatin g disk to stop the car. Fluid from the master cylinder forces the pistons to move in, toward the disk. This action pushes the friction pads tightly against the disk. The friction between the shoes and disk slows and stops it. This provides the braking action. Pistons are made of either plastic or metal. There are three general types of disk brakes. They are the floating-caliper type, the fixed-caliper type, and the sliding-caliper type. Floating-caliper and sliding-caliper disk brakes use a single piston. Fixed-caliper disk brakes have either two or four pistons.
The brake system assemblies are actuated by mechanical, hydraulic or pneumatic devices. The mechanical leverage is used in the parking brakes fitted in all automobile. When the brake pedal is depressed, the rod pushes the piston of brake master cylinder which presses the fluid. The fluid flows through the pipelines to the power brake unit and then to the wheel cylinder. The fluid pressure expands the cylinder pistons thus pressing the shoes to the drum or disk. If the pedal is released, the piston returns to the initialposition, the pull back springs retract the shoes, the fluid is forced back to the master cylinder and braking ceases.
The primary purpose of the parking brake is to hold the vehicle stationary while it is unattended. The parking brake is mechanically operated by the driver when a separate parking braking hand lever is set. The hand brake is normally used when the car has already stopped. A lever is pulled and the rear brakes are approached and locked in the “on” position. The car may now be left without fear of its rolling away. When the driver wants to move the car again, he must press a button before the lever can be released. The hand brake must also be able to stop the car in the event of the foot brake failing. For this reason, it is separate from the foot brake uses cable or rods instead of the hydraulic system.
Anti-lock Brake System
Anti-lock brake systems make braking safer and more convenient, Anti-lock brake systems modulate brake system hydraulic pressure to prevent the brakes from locking and the tires from skidding on slippery pavement or during a panic stop.
Anti-lock brake systems have been used on aircraft for years, and some domestic car were offered with an early form of anti-lock braking in late 1990’s. Recently, several automakers have introduced more sophisticated anti-lock system. Investigations in Europe, where anti-lock brakin g systems have been available for a decade, have led one manufacture to state that the number of
traffic accidents could be reduced by seven and a half percent if all cars had anti-lock brakes. So some sources predict that all cars will offer anti-lock brakes to improve the safety of the car.
Anti-lock systems modulate brake application force several times per second to hold the tires at a controlled amount of slip; all systems accomplish this in basically the same way. One or more speed sensors generate alternating current signal whose frequency increases with the wheel rotational speed. An electronic control unit continuously monitors these signals and if the frequency of a signal drops too rapidly indicating that a wheel is about to lock, the control unit instructs a modulating device to reduce hydraulic pressure to the brake at the affected wheel. When sensor signals indicate the wheel is again rotating normally, the control unit allows increased hydraulic pressure to the brake. This release-apply cycle occurs several time per second to “pump” the brakes lik e a driver might but at a much faster rate.
In addition to their basic operation, anti-lock systems have two other things in common. First, they do not operate until the brakes are applied with enough force to lock or nearly lock a wheel. At all other times, the system stands ready to function but does not interfere with normal braking. Second, if the anti-lock system fail in any way, the brakes continue to operate without anti-lock capability. A warning light on the instrument panel alerts the driver when a problem exists in the anti-lock system.
The current Bosch component Anti-lock Braking System (ABSⅡ), is a second generation design wildly used by European automakers such as BWM, Mercedes-Benz and Porsche. ABSⅡsystem consists of : four wheel speed sensor, electronic control unit and modulator assembly.
A speed sensor is fitted at each wheel sends signals about wheel rotation to control unit. Each speed sensor consists of a sensor unit and a gear wheel. The front sensor mounts to the steering knuckle and its gear wheel is pressed onto the stub axle that rotates with the wheel. The rear sensor mounts the rear suspension member and its gear wheel is pressed onto the axle. The sensor itself is a winding with a magnetic core. The core creates a magnetic field around the winding, and as the teeth of the gear wheel move through this field, an alternating current is induced in the winding. The control unit monitors the rate o change in this frequency to determine impending brake lockup.
The control unit’s function can be divided into three parts: signal processing, logic and safety circuitry. The signal processing section is the converter that receives the alternating current signals form the speed sensors and converts them into digital form for the logic section. The logic section then analyzes the digitized signals to calculate any brake pressure changes needed. If impending lockup is sensed, the logic section sends commands to the modulator assembly.
Modulator assembly
The hydraulic modulator assembly regulates pressure to the wheel brakes when it receives commands from the control utuit. The modulator assembly can maintain or reduce pressure over the level it receives from the master cylinder, it also can never apply the brakes by itself. The modulator assembly consists of three high-speed electric solenoid valves, two fluid reservoirs and a turn delivery pump equipped with inlet and outlet check valves. The modulator electrical connector and controlling relays are concealed under a plastic cover of the assembly.
Each front wheel is served by electric solenoid valve modulated independently by the control unit. The rear brakes are served by a single solenoid valve and modulated together using the select-low principle. During anti-braking system operation, the control unit cycles the solenoid valves to either hold or release pressure the brake lines. When pressure is released from the brake
lines during anti-braking operation, it is routed to a fluid reservoir. There is one reservoir for the front brake circuit. The reservoirs are low-pressure accumulators that store fluid under slight spring pressure until the return delivery pump can return the fluid through the brake lines to the master cylinder.
汽车制动系统
制动系统是汽车中最重要的系统。如果制动失灵，结果可能是损失惨重的。制动器实际就是能量转换装置，它将汽车的动能（动量）转化成热能（热量）。当驾驶员踩下制动踏板，所产生的制动力是汽车运动时动力的10倍。制动系统能对四个刹车系统中的每个施加数千磅的力。
每辆汽车上使用两个完全独立的制动系统，即行车制动器和驻车制动器。
行车制动器起到减速、停车、或保持车辆正常行驶。制动器是由司机用脚踩、松制动器踏板来控制的。驻车制动器的主要作用就是当车内无人的时候，汽车能够保持静止。当独立的驻车制动器—踏板或手杆，被安装时，驻车制动器就会被机械地操作。
制动系统是由下列基本的成分组成:位于发动机罩下方，而且直接地被连接到制动踏板的“制动主缸”把驾驶员脚的机械力转变为液压力。钢制的“制动管路”和有柔性的“制动软管”把制动主缸连接到每个轮子的“制动轮缸”上。制动液, 特别地设计为的是工作在极端的情况，填充在系统中。“制动盘”和“衬块”是被制动轮缸推动接触“圆盘”和“回转体”如此引起缓慢的拖拉运动, (希望)使汽车减慢速度。
典型的制动系统布置有前后盘式，前盘后鼓式，各个车轮上的制动器通过一套管路系统连接到制动主缸上。
基本上讲，所有的汽车制动器都是摩擦制动器。当司机刹车时，控制装置会迫使制动蹄，或制动衬片与车轮处的旋转的制动鼓或制动盘接触。接触后产生的摩擦使车轮转动减慢或停止，这就是汽车的制动。
在最基本的制动系统中，有一个制动主缸，这个主缸内部填充制动液，并包含两个部分，每个部分里都有一个活塞，两个活塞都连接驾驶室里的制动踏板。当制动踏板被踩下时，制动液会从制动主缸流入轮缸。在轮缸中，制动液推动制动蹄或制动衬片与旋转的制动鼓或制动盘接触。静止的制动蹄或制动衬片与旋转的制动鼓或制动盘之间产生摩擦力使汽车的运动逐渐减缓或停止。
制动液的装置位于主缸的顶部。目前大多数的车都有一个容易看见的装制动液的装置，为的是不用打开盖子就可以看得见制动液的油面。随着制动踏板的运动制动液就会缓慢的下降，正常情况下是这样的。如果制动液在很短的时间内下降得明显或者下降了三分之二，那么就要尽快的检查你的制动系统了。保持制动液装置充满制动液除非你需要维修它，制动液必须保持很高的沸点。位于在空气中的制动液就会吸收空气中的潮气引起制动液低于沸点。制动液通过一系列的管路从主缸到达各车轮。橡胶软管只用在需要弹力的地方，比如应用在前轮。在车的行进中上下来回运动。系统的其它部分在所有的连接点上都应用了无腐蚀性的无缝钢管。如果钢线需要修理的话，最好的方法就是代替这条线。如果这不符合实际，那么为了制动系统可以用特殊的装置修理它。你不可以用铜管来修理制动系。它们是危险也是不正确的。
鼓式制动器包括制动鼓，一个轮缸，回拉弹簧，一个制动底版，两个带摩擦层的制动蹄。制动底版固定在轮轴外部的法兰或转向节。制动鼓固定在轮毂上。制动鼓的内部表面与制动蹄的内层之间有空隙。要使用制动器时，司机就要踩下踏板，这时轮缸扩大制动片，对其施加压力，是制动蹄触碰制动鼓。制动鼓与摩擦片之间产生的摩擦制动了车轮，从而使汽车停
止。要释放制动器时，司机松开踏板，回拉弹簧拉回制动片，这样车轮会自由转动。
盘式制动器包括制动盘而不是鼓，在它的两面上各有一个薄的制动片或叫盘式制动器的制动片。制动片是靠挤住旋转的制动盘来停住汽车。制动主缸里流出的制动液迫使活塞向里部的金属盘移动，这便使摩擦片紧紧地贴住制动盘。这时制动片与制动盘产生的摩擦使汽车减速、停止，出现了制动行为。活塞分金属或塑料。盘式制动器主要有三种，即：浮动卡钳型、固定卡钳型和滑动卡钳型。浮动卡钳型和滑动卡钳型盘式制动器使用单活塞。固定卡钳型盘式制动器既可以使用两个活塞有可以使用四个活塞。
制动系统是由机械能，液压能或气压能装置驱动的。在机械杠杆适合所有的汽车的驻车制动器中使用。当踩下制动踏板时，杠杆就会推动制动器主缸的活塞给制动液施加压力，制动液通过油管流入轮缸。制动液的压力施加到轮缸活塞以使制动片被压到制动鼓或制动盘上。如果松开踏板，活塞回到原来的位置上，回拉弹簧拉回制动片，制动液返回制动主缸，这样制动停止。
驻动制动器的主要作用是车内无人时，使汽车静止不动。如果车内安装的是独立的驻车制动器，那么驻车制动器是由司机手动的控制。驻车制动器正常是当车已经停止时使用的。向后拉手闸，并把手柄卡在正确的位置上。现在，即使离开汽车也不用害怕它会自己滑走。如果司机要再次启车时，他必须在松开手杆之前按下按钮。在行车制动器失灵的情况下，手闸必须能停住车。正因为这样，手闸与脚闸分开，手闸使用的是绳索或杠杆而不是液力系统。防抱死制动系统是使汽车制动更安全、更方便的制动装置，它既有调节制动系统的压力来防止车轮被完全抱死的功能，又有防止轮胎在滑的路面上行驶或紧急停车时的滑动。
防抱死制动系统最早应用在航空飞行器上，而且在二十世纪90年代一些国内的汽车内也安装了这种系统。近来，几个汽车制造商引进了更为复杂的防抱死系统。欧洲使用这种系统已有几十年的时间，通过对其的调查，一位汽车制造商坦言，如果所有的汽车都安装上防抱死制动系统，那么交通事故的发生率会降低7.5%。同时，一些权威人士预测这种系统会提高汽车的安全性。
防抱死制动系统可以在一秒钟内调节几次制动时车轮上的受力，使车轮的滑移受到控制，而且所有的系统基本上都以相同的方式完成。每个车轮都会有一个传感器，电子控制装置能连续检测来自车轮传感器传来的脉冲电信号，并将它们处理转换成和轮速成正比的数值；如果其中一个传感器的信号不断下降，那么这就表明了相应的轮胎趋于抱死，这时电子控制装置向该车轮的制动器发出降低压力的指令。当信号显示车轮转速恢复正常时，电子控制装置会增加制动器的液压。这种循环像司机一样调节制动器，但它的速度更快，达到了每秒循环数次。
防抱死制动系统除了上面基本操作，还有两个特点。首先，当制动系统的压力上升到使轮胎抱死或即将抱死的时候，防抱死制动系统才会启动；当制动系统在正常情况下，防抱死制动系统停止运作。其次，如果防抱死制动系统有问题时，制动器会独立地继续运行。但控制板上的指示灯亮起提醒司机系统出现问题。
目前欧洲汽车生产商，如：宝马、奔驰、宝时捷等广泛使用的是波许（Bosch）防抱死制动系统。这种系统基本组成包括车轮转速传感器，电子控制装置和调节装置。
每个有一个向电子控制装置发出车轮转动情况的信号的传感器，它一般由磁感应传感头和齿圈组成。前面的传感器安在轮毂上，齿圈安在轮网上。后面的传感器安在后部的监测系统上，齿圈安在轮轴上。传感器本身是缠绕电磁核的电线圈，电磁核才线圈的周围产生磁场。当齿圈的齿移动到磁场时，就会改变线圈的电流。电子控制装置会监测这种变化，然后判断车轮是否即将抱死。
电子控制装置有三个作用，即：信号的处理，编辑和安全防护。信号的处理起到转换器的作用，它是将接受的脉冲电信号处理转换成数值，为编辑做准备。编辑就是分析这些数
值，计算出需要制动压力。如果检测出车轮即将抱死，电控装置就会计算出数值向调节装置发出指令。
调节装置
当接受到电子控制装置的指令后，液压执行装置会调节制动轮缸的液压的大小。调节装置能保持或减小来自制动主缸的液压，而装置本身是不能启用制动器的。这种装置有三个高速率的电磁阀，两个油液存储器和一个带有内外检测阀的传动泵。调节装置中的电子连接器隐藏在塑料盖下。
每个电磁阀都是其独立控制的，并作用于前轮。后部的制动轮缸受到一个电磁阀控制，并依照------的原理进行调节。当防抱死制动系统运行时，电子控制装置会使电磁阀循环运作，这样既能收回又能释放制动器的压力。当压力释放时，它会释放到液压单元。前部的制动器电路有一个单元。存储器低压存储器，它在低压下存储油液，直到回流泵打开，油液流经制动轮缸进入制动主缸。
FINANCIAL INNOV ATION Like other industries, the financial industry is in business to earn profits by selling its products. If a soap company perceives that there is a need in the marketplace for a laundry detergent with fabric softener, it develops a product to fit the need .Similarly, in order to maximize their profits, financial institutions develop new products to satisfy their own needs as well as those of their customers; in other words, innovation-which can be extremely beneficial to the economy-is driven by the desire to get (or stay) rich. This view of the innovation process leads to the following simple analysis: A chance in the financial institutions for innovations that are likely to be profitable. Starting in the 1960s, individuals and financial institutions operating in financial markets were confronted with drastic changes in the economic environment: Inflation and interest rates climbed sharply and became hard to predict, a situation that changed demand conditions in financial markets. Computer technology advanced rapidly, which changed supply conditions. In addition, financial regulations became especially inconvenient. Banking institution discovers many old ways of doing business being able to not have earned money again; they provide the masses finance with service and financial products sale neither well. Many financial intermediary is discovered they have no way to raise having arrived at a fund, but these self that will not a suspense of business right away with original tradition finance implement. For existing under new economy environment, research and development puts up banking institution be obliged to being able to satisfy customer need moreover the new product being able to gain a profit of and serving, this process is called financial engineering. In their case, necessity was the mother of innovation. Our discussion of why financial innovation occurs suggests that there are three basic types of financial innovations: Escapism to responding to needing condition change, to the small advantages supplying with condition change and to controlling. We have had one now understandable that banking institution is innovative for instance the cause institutions, let’s look at examples of how financial institutions in their search for profits have produced financial innovations of the three basic types. 1
Automobile Brake System The braking system is the most important system in cars. If the brakes fail, the result can be disastrous. Brakes are actually energy conversion devices, which convert the kinetic energy (momentum) of the vehicle into thermal energy (heat).When stepping on the brakes, the driver commands a stopping force ten times as powerful as the force that puts the car in motion. The braking system can exert thousands of pounds of pressure on each of the four brakes. Two complete independent braking systems are used on the car. They are the service brake and the parking brake. The service brake acts to slow, stop, or hold the vehicle during normal driving. They are foot-operated by the driver depressing and releasing the brake pedal. The primary purpose of the parking brake is to hold the vehicle stationary while it is unattended. The parking brake is mechanically operated by when a separate parking brake foot pedal or hand lever is set. The brake system is composed of the following basic c omponents: the “master cylinder” which is located under the hood, and is directly connected to the brake pedal, converts driver foot’s mechanical pressure into hydraulic pressure. Steel “brake lines” and flexible “brake hoses” connect the master cylinder to the cylinders” located at each wheel. Brake fluid, specially designed to work in extreme conditions, fills the system. “Shoes” and “pads” are pushed by cylinders to contact the “drums” and “rotors” thus causing drag, which (hopefully) slows the car. The typical brake system consists of disk brakes in front and either disk or drum brakes in the rear connected by a system of tubes and hoses that link the brake at each wheel to the master cylinder (Figure).
汽车全部零部件英文翻译 车轮系统 Wheeling System 轮毂 Wheel Hub 轮胎 Tire 轮胎汽门嘴 Tire Valve 轮圈 Wheel Disk 轮圈盖 Wheel Cover 车轮系统 Wheeling System 电装品 Electrical Parts 电瓶 Battery 中央门控 Central Door Lock 分电盘 Distributor 火星塞 Spark Plug 汽车用电子钟 Digital Clock 汽车音响 Car Audio 防盗器 Car Burglar Alarm 雨刷及雨刷连杆 Wiper / Linkage 保险丝座Fuse Seat 保险丝 Fuse 洗涤壶 Windshield Washer 配线 Wire Harness 马达类 Motor 高压线组 Ignition Cable 喇叭 Horn 发电机Alternator (Components) 开关类 Switch 蜂鸣器 Buzzer 预热塞 Glow Plug 仪表 Combination Meter 灯泡 Bulb 灯类 Lamp 点火线圈 Ignition Coil 继电器 Relay 倒车雷达 Reverse Sensor 电池充电器 Battery Charger
闪光器 Flasher 省电器 Energy Saving Unit 端子 Terminal 电动座椅装置 Power Seat Unit 马达零件 Motor Components 电装品 Electrical Parts 汽车用光盘 Car CD 汽车用液晶显示器 Car LCD 调整器 Regulator 整流器 Rectifier 电子点火器 Ignition Module 倒车显示器 Rear View Display 定速器 Cruise Controller HID车灯安定器组合 HID Ballast Complete Set for Headlights LED 灯 LED Lamp 车灯控制器 Lighting Controller 点火线圈模块 Ignition Coil Module 外装品 Exterior Parts 水箱饰罩 Radiator Grille 天线 Antenna 车身护条 Side Protector 防撞护垫 Bumper Pad 后视镜 Door Mirror 装饰贴纸、标志Ornament Mark 轮弧 Fender Trim 挡泥板 Mud Guard 扰流板 Spoiler 前防撞杆 Guard Assy (Front) 后防撞杆 Grard Assy (Rear) 内装品 Interior Parts 仪表板 Instrument Panel 中央置物箱 Console 孔塞 Grommet Plug 地毯 Floor Mat
Automobile Brake System汽车制动系统 The braking system is the most important system in cars. If the brakes fail, the result can be disastrous. Brakes are actually energy conversion devices, which convert the kinetic energy (momentum) of the vehicle into thermal energy (heat).When stepping on the brakes, the driver commands a stopping force ten times as powerful as the force that puts the car in motion. The braking system can exert thousands of pounds of pressure on each of the four brakes. Two complete independent braking systems are used on the car. They are the service brake and the parking brake. The service brake acts to slow, stop, or hold the vehicle during normal driving. They are foot-operated by the driver depressing and releasing the brake pedal. The primary purpose of the brake is to hold the vehicle stationary while it is unattended. The parking brake is mechanically operated by when a separate parking brake foot pedal or hand lever is set. The brake system is composed of the following basic components: the “master cylinder” which is located under the hood, and is directly connected to the brake pedal, converts driver foot’s mechanical pressure into hydraulic pressure. Steel “brake lines” and flexible “brake hoses” connect the master cylinder to the “slave cylinders” located at each wheel. Brake fluid, specially designed to work in extreme conditions, fills the system. “Shoes” and “pads” are pushed by the slave cylinders to contact the “drums” and “rotors” thus causing drag, which (hopefully) slows the c ar. The typical brake system consists of disk brakes in front and either disk or drum brakes in the rear connected by a system of tubes and hoses that link the brake at each wheel to the master cylinder (Figure). Basically, all car brakes are friction brakes. When the driver applies the brake, the control device forces brake shoes, or pads, against the rotating brake drum or disks at wheel. Friction between the shoes or pads and the drums or disks then slows or stops the wheel so that the car is braked.
汽车英语单词常用缩写 汽车英语单词常用缩写 CVVT是英文ContinueVariableValveTiming的缩写，翻译成中 文就是连续可变气门正时机构 TSI是Turbo-charging，涡轮增压;Super-charging，机械增压 和Injection，燃油直喷,三个关键特色的首字母缩写。 DSG(DirectShiftGearbox)中文表面意思为“直接换挡变速器”。 ABS即英文AntilockBrakingSystem的缩写，意为“防抱死制动 系统” 4WD即英文FourWheeldrive的缩写，意为“四轮驱动系统” 4WS即英文FourWheelSteer的'缩写，意为“四轮转向系统”。 SRS即英文SupplementalRestraintSystem的缩写，意为“汽车 安全气囊” MPV的全称是Multi-PurposeVehicle，即多用途汽车 GPS即英文GlobalPositionsystem的缩写，意为“全球导航系统” EGR即英文ExhaustGasRecycle的缩写，意为“废气再循环系统” ATF即英文AutomaticTransmissionFluid的缩写，意为“自动 变速器油”。 ECT即英文EmissionControlSystem的缩写，意为“电子控制自 动变速器” PPS英文ProgressivePowerSteering的缩写，意为“电子控制 液压动力转向系统”
VIN即英文VehicleIdentificationNumber的缩写，意为“机动 车身份条形码” OBD即英文OnB0ardDiagnostics的缩写，意为“车载诊断系统” ASR即英文AccelerationSlipRegulation的缩写，意为“汽车 驱动防滑控制系统” VSC即英文VehicleStabilityControl的缩写，意为“汽车稳定 控制系统” TWC即英文ThreeWayCatalyticConverter的缩写，意为“三元 催化转换器” ISC是“怠速控制系统”
汽车系统英文对照大全 A 涡轮增压是turbo，机械增压是supercharger，而燃油分层直喷Fuel Stratified Injection缩写是fsi AFS：自适应照明系统主动前轮转向系统 AYC：主动偏航控制系统主动横摆控制系统 ASC：主动式稳定控制系统自动稳定和牵引力控制车轮打滑控制 ABS：防抱死制动系统 ASR：防滑系统 ASL：音量自动调节系统排档自动锁定装置 AUX：音频输入端口 ADS：自适应减振系统 ACC：自适应巡航控制系统车距感应式定速巡航控制系统 AWD：全时四轮驱动系统 ACD：主动中央差速器 AMT：电子自动变速箱电控机械式自动变速器 All-Speed TCS:全速段牵引力控制系统 ACIS：电子控制进气流程系统丰田可变进气歧管系统 ABD：自动制动差速系统 AGF：亚洲吉利方程式国际公开赛 AUTO：自动切换四驱 ASC+T：自动稳定和牵引力控制系统 ABC：主动车身控制 AXCR：亚洲越野拉力赛 ARP：主动防侧翻保护 AFM：动态燃油管理系统 APEAL：新车满意度中国汽车性能、运行和设计调研 AT：自动变速器 Asian festival of speed：亚洲赛车节 AOD：电子控制按需传动装置 AACN：全自动撞车通报系统 ARTS：智能安全气囊系统 AWS：后撞头颈保护系统 AIAC：奥迪国际广告大赛 AVS：适应式可变悬架系统 Audi AAA：奥迪认证轿车 ATA：防盗警报系统 ALS：自动车身平衡系统 ARS：防滑系统 ASPS：防潜滑保护系统 ASS：自适应座椅系统
AQS：空气质量系统 AVCS：主动气门控制系统 ASF：奥迪全铝车身框架结构 A-TRC：主动牵引力控制系统 AHC：油压式自动车高调整 AMG：快速换档自动变速箱 AHS2：“双模”完全混合动力系统 AI：人工智能换档控制 APRC：亚太汽车拉力锦标赛 ARTS：自适应限制保护技术系统 ACU：安全气囊系统控制单元 AP：恒时全轮驱动 AZ：接通式全轮驱动 ASM：动态稳定系统 AS：转向臂 APC：预喷量控制 Active Light Function：主动灯光功能 ACE：高级兼容性设计 Audi Space Frame：奥迪全铝车身技术AWC：全轮控制系统 ASTC：主动式稳定性和牵引力控制系统 B BA：紧急制动辅助系统 BEST：欧盟生物乙醇推广项目 Brake Energy Regeneration：制动能量回收系统BLIS：盲区信息系统 BAS：制动助力辅助装置BRIDGESTONE：普利司通轮胎 Biometric immobilizer：生物防盗系统 BCI：蓄电池国际协会国际电池大会BAR：大气压 BDC：下止点 BBDC：北京奔驰-戴克汽车新工厂 B：水平对置式排列多缸发动机 BF：钢板弹簧悬架 BCM：车身控制模块 BCS：博世汽车专业维修网络 BMBS：爆胎监测与制动系统 BFCEC：北京福田康明斯发动机有限公司
毕业设计（论文）外文翻译 AUTOMOTIWE FINAL DRIVE FINAL DRIVE A final drive is that part of a power transmission system between the drive shaft and the differential. Its function is to change the direction of the power transmitted by the drive shaft through 90 degrees to the driving axles. At the same time. it provides a fixed reduction between the speed of the drive shaft and the axle driving the wheels. The reduction or gear ratio of the final drive is determined by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. In passenger vehicles, this speed reduction varies from about 3:1 to 5:1. In trucks it varies from about 5:1 to 11:1. To calculate rear axle ratio, count the number of teeth on each gear. Then divide the number of pinion teeth into the number of ring gear teeth. For example, if the pinion gear has 10 teeth and the ring gear has 30 (30 divided by 10), the rear axle ratio would be 3:1. Manufacturers install a rear axle ratio that provides a compromise between performance and economy. The average passenger car ratio is 3.50:1. The higher axle ratio, 4.11:1 for instance, would increase acceleration and pulling power but would decrease fuel economy. The engine would have to run at a higher rpm to maintain an equal cruising speed. The lower axle ratio. 3:1, would reduce acceleration and
汽车内饰件常见英语翻译
01-零件（Part） 一、零件总成(Parts Assembly) 1、发动机舱系统（Engine Compartment System） 1.引擎盖隔音垫Hood 2.前围前隔音垫Dashout 2、乘员舱饰件系统（Passenger Compartment System） 1.主地毯Carpet 2.顶棚Headliner 3.前围后隔音垫Dashinner 4.脚垫Mat 5.衣帽架Package Tray 6.中通道隔音垫Tunnel Insulator 7.座椅靠背地毯Seat Back Carpet 3、行李箱饰件系统（Trunk Trim System） 1.侧饰板Side trim 2.备胎盖Trunk
Carpet 3.内饰板Decklid Trim 4、外饰系统（Exterior Trim Systems） 1.密封条Sealing 2.轮罩Wheel House 3.防水膜Water Shield 二、外协件（Outsourcing Parts） 1.塑料固定扣（尼龙扣）Plastic Fixed Buckle (Nylon Buttons) 2.塑料尾部连接块卡扣Plastic Tail Connection Buckle 3.塑料尾部连接块顶端卡扣Plastic Tail Top Connection Buckle 4.金属连接扣Metal Connection Buckle 5.塑料保险带扣Plastic Seat Belts Buckle 6.组合卡子Combination Bands 7.尼龙拉手Nylon Shake Hander
个人资料 name 姓名 alias 别名 pen name 笔名 date of birth 出生日期 birth date 出生日期 born 出生于 birth place 出生地点 age 年龄 native place 籍贯 province 省 city 市 autonomous region 自治区prefecture 专区 county 县 nationality 民族，国籍citizenship 国籍 duel citizenship 双重国籍address 地址 current address 目前地址present address 目前地址permanent address 永久地址postal code 邮政编码 home phone 住宅电话 office phone 办公电话business phone 办公电话Tel.电话 sex 性别 male 男
female 女 height 身高 weight 体重 marital status 婚姻状况family status 家庭状况married 已婚 single/unmarried 未婚divorced 离异 separated 分居 number of children 子女人数none 无 street 街 lane 胡同，巷 road 路 district 区 house number 门牌 health 健康状况 health condition 健康状况blood type 血型 short-sighted 近视 far-sighted 远视 color-blind 色盲 ID card No.身份证号码 date of availability 可到职时间available 可到职membership 会员，资格president 会长 vice-president 副会长director 理事 standing director 常务理事
附录 Automobile Brake System The braking system is the most important system in cars. If the brakes fail, the result can be disastrous. Brakes are actually energy conversion devices, which convert the kinetic energy (momentum) of the vehicle into thermal energy (heat).When stepping on the brakes, the driver commands a stopping force ten times as powerful as the force that puts the car in motion. The braking system can exert thousands of pounds of pressure on each of the four brakes. Two complete independent braking systems are used on the car. They are the service brake and the parking brake. The service brake acts to slow, stop, or hold the vehicle during normal driving. They are foot-operated by the driver depressing and releasing the brake pedal. The primary purpose of the brake is to hold the vehicle stationary while it is unattended. The parking brake is mechanically operated by when a separate parking brake foot pedal or hand lever is set. The brake system is composed of the following basic component s: the “master cylinder” which is located under the hood, and is directly connected to the brake pedal, converts driver foot’s mechanical pressure into hydraulic pressure. Steel “brake lines” and flexible “brake hoses” connect the master cylinder to the “slave cylinders” located at each wheel. Brake fluid, specially designed to work in extreme conditions, fills the system.
01-零件（Part） 一、零件总成(Parts Assembly) 1、发动机舱系统（Engine Compartment System） 1.引擎盖隔音垫Hood 2.前围前隔音垫Dashout 2、乘员舱饰件系统（Passenger Compartment System） 1.主地毯Carpet 2.顶棚Headliner 3.前围后隔音垫Dashinner 4.脚垫Mat 5.衣帽架Package Tray 6.中通道隔音垫Tunnel Insulator 7.座椅靠背地毯Seat Back Carpet 3、行李箱饰件系统（Trunk Trim System） 1.侧饰板Side trim 2.备胎盖Trunk Carpet 3.内饰板Decklid Trim 4、外饰系统（Exterior Trim Systems） 1.密封条Sealing 2.轮罩Wheel House 3.防水膜Water Shield 二、外协件（Outsourcing Parts） 1.塑料固定扣（尼龙扣）Plastic Fixed Buckle (Nylon Buttons) 2.塑料尾部连接块卡扣Plastic Tail Connection Buckle 3.塑料尾部连接块顶端卡扣Plastic Tail Top Connection Buckle 4.金属连接扣Metal Connection Buckle 5.塑料保险带扣Plastic Seat Belts Buckle 6.组合卡子Combination Bands 7.尼龙拉手Nylon Shake Hander 8.塑料拉手Plastic Handle 9.索环Lasso 10.拉索组件Lasso Components 11.阅读灯面板组件Reading Lamp Panel Components 12.遮阳板组件Sunshading Board Components
汽车系统英文大全 A AFS：自适应照明系统主动前轮转向系统 AYC：主动偏航控制系统主动横摆控制系统 ASC：主动式稳定控制系统自动稳定和牵引力控制车轮打滑控制ABS：防抱死制动系统 ASR：防滑系统 ASL：音量自动调节系统排档自动锁定装置 AUX：音频输入端口 ADS：自适应减振系统 ACC：自适应巡航控制系统车距感应式定速巡航控制系统 AWD：全时四轮驱动系统 ACD：主动中央差速器 AMT：电子自动变速箱电控机械式自动变速器 All-Speed TCS:全速段牵引力控制系统 ACIS：电子控制进气流程系统丰田可变进气歧管系统 ABD：自动制动差速系统 AGF：亚洲吉利方程式国际公开赛 AUTO：自动切换四驱 ASC+T：自动稳定和牵引力控制系统 ABC：主动车身控制 AXCR：亚洲越野拉力赛 ARP：主动防侧翻保护 AFM：动态燃油管理系统 APEAL：新车满意度中国汽车性能、运行和设计调研 AT：自动变速器 Asian festival of speed：亚洲赛车节 AOD：电子控制按需传动装置 AACN：全自动撞车通报系统 ARTS：智能安全气囊系统 AWS：后撞头颈保护系统 AIAC：奥迪国际广告大赛 AVS：适应式可变悬架系统 Audi AAA：奥迪认证轿车 ATA：防盗警报系统 ALS：自动车身平衡系统 ARS：防滑系统 ASPS：防潜滑保护系统 ASS：自适应座椅系统 AQS：空气质量系统 AVCS：主动气门控制系统 ASF：奥迪全铝车身框架结构 A-TRC：主动牵引力控制系统
AHC：油压式自动车高调整 AMG：快速换档自动变速箱 AHS2：“双模”完全混合动力系统 AI：人工智能换档控制 APRC：亚太汽车拉力锦标赛 ARTS：自适应限制保护技术系统 ACU：安全气囊系统控制单元 AP：恒时全轮驱动 AZ：接通式全轮驱动 ASM：动态稳定系统 AS：转向臂 APC：预喷量控制 Active Light Function：主动灯光功能 ACE：高级兼容性设计 Audi Space Frame：奥迪全铝车身技术 AWC：全轮控制系统 ASTC：主动式稳定性和牵引力控制系统 B BA：紧急制动辅助系统 BEST：欧盟生物乙醇推广项目 Brake Energy Regeneration：制动能量回收系统BLIS：盲区信息系统 BAS：制动助力辅助装置 BRIDGESTONE：普利司通轮胎 Biometric immobilizer：生物防盗系统 BCI：蓄电池国际协会国际电池大会 BAR：大气压 BDC：下止点 BBDC：北京奔驰-戴克汽车新工厂 B：水平对置式排列多缸发动机 BF：钢板弹簧悬架 BCM：车身控制模块 BCS：博世汽车专业维修网络 BMBS：爆胎监测与制动系统 BFCEC：北京福田康明斯发动机有限公司 C CCS：智能定速巡航控制系统 CSI：中国售后服务满意度调研 CVVT：连续可调气门正时 CVT：无级变速器 CZIP：清洁区域内部组件 CCC：全国汽车场地锦标赛 CVTC：连续可变气门正时机构连续可变配气正时
各种工具toolbox 工具箱 bench 工作台 vice, clamp 虎钳(美作:vise) saw 锯 bow saw 弓锯 circular saw 圆锯(美作:buzzsaw) compass saw, scroll saw 钢丝锯fretsaw 细锯 handsaw 手锯 chisel 口凿 cold chisel, burin 冰凿 gouge, firmer gouge 半圆凿 plane 刨子 moulding plane 型刨 jack plane 粗刨 rabbet plane 槽刨 drawknife 刮刀 scraper 三角刮刀 rasp 粗锉 file 锉 square 尺
miter 斜槽规 scriber 近线尺 set square, triangle 三角板brace 手拉曲柄锉 hand drill 手钻 drill, bit 钻,有柄钻 gimlet, auger 钻,无柄钻countersink 锥口钻 gauge, marking gauge 量规hammer 锤 mallet 木槌 nail 钉 brad 平头钉 tack, stud 圆头钉 screw 螺丝钉 screwdriver 螺丝刀,改锥screw tap 螺丝攻 nail puller 拔钉器 ruler 尺 tape measure 卷尺 folding ruler 折尺sandpaper, emery paper 砂纸
toolbox 工具箱 bench 工作台 vice, clamp 虎钳(美作:vise) saw 锯 bow saw 弓锯 circular saw 圆锯(美作:buzzsaw) compass saw, scroll saw 钢丝锯fretsaw 细锯 handsaw 手锯 chisel 口凿 cold chisel, burin 冰凿 gouge, firmer gouge 半圆凿plane 刨子 moulding plane 型刨 jack plane 粗刨 rabbet plane 槽刨 drawknife 刮刀 scraper 三角刮刀 rasp 粗锉 file 锉 square 尺 miter 斜槽规
Brake systems We all know that pushing down on the brake pedal slows a car to a stop. But how does this happen? How does your car transmit the force from your leg to its wheels? How does it multiply the force so that it is enough to stop something as big as a car? Brake Image Gallery Layout of typical brake system. See more brake images. When you depress your brake pedal, your car transmits the force from your foot to its brakes through a fluid. Since the actual brakes require a much greater force than you could apply with your leg, your car must also multiply the force of your foot. It does this in two ways: ?Mechanical advantage (leverage) ?Hydraulic force multiplication The brakes transmit the force to the tires using friction, and the tires transmit that force to the road using friction also. Before we begin our discussion on the components of the brake system, we'll cover these three principles: ?Leverage ?Hydraulics ?Friction Leverage and Hydraulics In the figure below, a force F is being applied to the left end of the lever. The left end of the lever is twice as long (2X) as the right end (X). Therefore, on the right end of the lever a force of 2F is available, but it acts through half of the distance (Y) that the left end moves (2Y). Changing the relative lengths of the left and right ends of the lever changes the multipliers.