外文翻譯--汽車變速器

1、<p><b>　　附 錄 A</b></p><p>　　The output of the engine speed is very high, the maximum power and the maximum torque in a certain speed area appears. In order to bring into full play the bes

2、t performance engine, it must have a variable speed device, to coordinate the speed of the engine and the actual speed. Transmission can be in the course of driving in the car, and the engine between different ratios of

3、produce, through the shift can make the engine to the best in the dynamic properties of state. The three main transmissio</p><p>　　1. On a wide range of vehicle driving speed change the size of the car and t

4、he size of the torque on the drive wheels. As the car driving conditions, car speeds of the different requirements and drive torque to a wide range of change. For example in the way to speed should be able to 100 km/h, a

5、nd in the urban district, speed in 50 km/h often to the left. Empty car in a flat roads, driving resistance is very small, then, when the carrying the uphill, driving resistance and very big. And the car </p><

6、p>　　2. Achieve drive backward. The car engine crankshaft are generally only to a direction, and the car sometimes need to be able to drive back, therefore, often used in the transmission of setting reverse to realize

7、the car drive backward. </p><p>　　3. Achieve gap when clutch engaging, gearbox can not power output. For example can guarantee the engine when cut loose from the clutch driver's seat. </p><p&g

8、t;　　Transmission speed transmission mechanism and variable speed by operation of two parts. Variable speed transmission's main function is to change the torque and speed of numerical and direction; Operation's ma

9、in function is to control the transmission mechanism, realize the transmission ratio of the transformation, namely transmission shift to realize speed torque. </p><p>　　Mechanical transmission main applicati

10、on the gear transmission principle of slow down. Say simply, there are a number of different transmission ratio of gear, and the car down the behavior of the shift, that is through manipulation institutions make the diff

11、erent gear shift work. As in low speed, let the transmission ratio of big gear pair work, at high speed, let small gear transmission ratio. </p><p>　　From now on the market have different models of transmiss

12、ion to see, the main configuration can be divided into: the manual transmission (MT), automatic transmission (AT), manual/automatic transmission (AMT), step-less transmission (CVT). </p><p>　　1. The manual t

13、ransmission (MT) manual transmission contains array gear according to different driving conditions, drivers through the transmission control mechanisms to manually choose which a group of gear transmission, change the tr

14、ansmission ratio, to change speed and purpose. Because there is a shift change when gear synchronous "problem", now a lot of gearbox are adopting synchronizer, in order to improve the smooth shift. Characterist

15、ics: the shift to direct, for drivers to provide more d</p><p>　　2. Automatic transmission (AT) automatic transmission mechanism of planetary gear speed. It can according to the accelerator pedal degree and

16、the speed change to automatic variable speed, and drivers but simply to control the accelerator control can reduce the speed, the difficulty of driving. Will tell commonly, car commonly used automatic transmission has th

17、e following kinds of types: hydraulic automatic transmission, hydraulic transmission automatic transmission, power transmission automatic </p><p>　　3. Step-less transmission (CVT) step-less transmission is c

18、omposed of two groups of variable speed the plate and a belt of. Therefore, it is simple in structure than traditional automatic transmission, smaller. In addition, it is free to change gear ratios, so as to realize the

19、full speed stepless speed change of the vehicle to make smooth, without the traditional transmission shift at the "" feeling. Features: the realization of uninterrupted power output, the dynamic performance and

20、 economic p</p><p><b>　　附 錄B</b></p><p>　　發(fā)動機(jī)的輸出轉(zhuǎn)速非常高，最大功率及最大扭矩在一定的轉(zhuǎn)速區(qū)出現(xiàn)。為了發(fā)揮發(fā)動機(jī)的最佳性能，就必須有一套變速裝置，來協(xié)調(diào)發(fā)動機(jī)的轉(zhuǎn)速和車輪的實際行駛速度。變速器可以在汽車行駛過程中，在發(fā)動機(jī)和車輪之間產(chǎn)生不同的變速比，通過換擋可以使發(fā)動機(jī)工作在其最佳的動力性能狀態(tài)下。變速器主要

21、有一下三種功用1.在較大范圍內(nèi)改變汽車行駛速度的大小和汽車驅(qū)動輪上扭矩的大小。由于汽車行駛條件不同，要求汽車行駛速度和驅(qū)動扭矩能在很大范圍內(nèi)變化。例如在高速路上車速應(yīng)能達(dá)到100km/h，而在市區(qū)內(nèi)，車速常在50km/h左右?？哲囋谄街钡墓飞闲旭倳r，行駛阻力很小，則當(dāng)滿載上坡時，行駛阻力便很大。而汽車發(fā)動機(jī)的特性是轉(zhuǎn)速變化范圍較小，而轉(zhuǎn)矩變化范圍更不能滿足實際路況需要。2.實現(xiàn)倒車行駛 。汽車發(fā)動機(jī)曲軸一般都是只能向一個方向轉(zhuǎn)動的