中英文文献翻译-双离合式自动变速器介绍

1、附录A外文文献原文Introduce dual-clutch automatic transmissionThe clutch is located in engine and transmission between engine and transmission power transfer switch, it is a kind already can transmit power, and can cut off power transmission mechanism. Its major functions is to guarantee the car can smooth s

2、tart, variable speed change Block transmission gears when reduce the impact load and prevent transmission overload. In general bus, auto shift by clutch separation and joints when, in separation and realize between mating have power transfer temporary interruption phenomenon. In the ordinary bus no

3、effect, but the clock in your car, if the clutch master bad power behind the speed will slow, affect scores.In order to solve this problem, the early 1980s, the automotive engineering will make a double clutch system transmission, abbreviation vehicles.the (English name: Direct Shift Gearbox), assem

4、bly on the car, can eliminate shifting clutch of power transfer stagnation phenomenon. For example BuJiaDi EBl6.4 Veyron new 7 speed transmission is the device for double clutch, from a gear change to another gear, time cant exceed 0.2 seconds. Now, the double clutch has been applied to general from

5、 racing cars. Audi car companys new audi TT sports car and the new audi A3 have device the vehicles.the. These car assembly vehicles.the purpose is can more smoothly than automatic transmission gear shift, wont have hysteresis phenomenon.Double on-off gearbox (DCT) also called directly shift gearbox

6、 (vehicles.the). Count down it also has the nearly 70 years of history, but for a very long time and this gearbox are unknown, and the genuine used in mass production car is not long ago things. Double on-off gearbox advantages obviously, but its internal structure by comparison is very complicated.

7、 First of all it has two clutches respectively by electronic control and push by hydraulic system, and two clutches corresponding two groups of planetary gear transmission, so also corresponding complex is divided into two parts, the center of solid shaft is responsible for aset of gear, and hollow

8、shaft responsible for another group. Visible double re-rotating the internal structure of the almost overturned thoroughly traditional gearbox form.The working principle of double on-off gearbox can be simple understanding for a clutch corresponding odd block, another clutch corresponding even block

9、. When the vehicle hangs in a block, another clutch and corresponding next shift has been located in preparation condition, when Former gears separation is immediately jointing next shift gearbox, accordingly double on-off shift speed than the average gearbox even manual gearbox faster. Besides doub

10、le on-off gearbox although internal complex, but the actual volume and weight compared with automatic transmission character and not how much more than manual gearbox, therefore equipment double on-off gearbox models not smooth too burdensome for himself.At present domestic in the sale equipment dou

11、ble on-off gearbox models numbered, representative is public its Wallace GTI, EOS leaps, and still cool and equipped with double on-off gearbox soar team and loungyee will also listed in the near future. In addition S40 also have double Volvo re-rotating version. And many of the cars are porsche ado

12、pted dual on-off gearbox.Audi the double clutch system transmission is a whole, there have been six gear, clutch and transmission assembly at the same facility, two clutch cooperate each other work. This good metaphor a car had two sets of clutch, are driver control a set, vice driver control anothe

13、r set. Are the driver hang 1 file loosen clutch pedal started, the deputy drivers advance hang pot 2 but trample clutch pedal, When the speed up ready to shift and are driver trample clutch pedal while vice driver namely loosen clutch pedal, second gear began to work. Thus omitted rotary-switching e

14、mpty flash, continuous power transfer, and a bit like the relay race. Double clutch system two sets of clutch transmission system, through computer control coordination work.When the automobile driving in a normal, a clutch and transmission of a gear are linked together, the engine power transfer to

15、 the drive wheels, Computer based on the speed and speed for driver shifting intention judgement, foresight to control another clutch with another gear gears connected, but only is in the ready state, has not yet connected with engine power. Shift when first clutch disconnect, at the same time the f

16、irst 2 clutch will have connected gears and engine joint. Besides, a clutch except gap is closed, another clutch is in the open.Two root transmission shaft respectively by first and second clutch to control and engine power connection and disconnected, are respectively responsible for 1, 3, 5 files

17、and 2, 4 and 6 shifting gear transform. Considering the parts service life, the designer chose tanker diaphragm type clutch, clutch action by the hydraulic system to control.Vehicles.the transmission is mainly to consumer demand for driving sensation and vehicle fuel-efficient double request, for ma

18、nual transmission drivers like provides the best choice. Equipped with vehicles.the engine because of fast gear conversion can arise immediately traction and greater flexibility, acceleration time than manual transmission more quick.Advantages:Power transmission coherent with higher efficiency and E

19、ditor this section,faults:Complex structure present and manufacturing cost is higher.附录B外文文献中文翻译双离合式自动变速器介绍离合器位于发动机与变速器之间，是发动机与变速器动力传递的“开关”，它是一 种既能传递动力，又能切断动力的传动机构。它的作用主要是保证汽车能平稳起步， 变速换挡时减轻变速齿轮的冲击载荷并防止传动系过载。在一般汽车上，汽车换档时 通过离合器分离与接合实现，在分离与接合之间就有动力传递暂时中断的现象。这在 普通汽车上没有什么影响，但在争分夺秒的赛车上，如果离合器掌握不好动力跟不上， 车速就

20、会变慢，影响成绩。为了解决这个问题，早在上世纪80年代，汽车工程界就弄出了一个双离合系统变 速器，简称DSG （英文全称：Direct Shift Gearbox），装配在赛车上，能消除换档离合 时的动力传递停滞现象。例如 布加迪EB16.4 Veyron的新型7速变速器是装置了双离 合器，从一个档位换到另一个档位，时间不会超过0.2秒。现在，这种双离合器已经 从赛车应用到一般跑车上。奥迪汽车公司的新型奥迪TT跑车和新奥迪A3都已经装置 了这种DSG。这些汽车装配DSG的目的是可以比自动变速器更加平顺地换档，不会 有迟滞现象。双离合变速箱（DCT）也称直接换挡变速箱（DSG）。算下来它也有近7

21、0年的历 史，但很长一段时间内这种变速箱并不为人所知，而真正应用在量产车上也是不久以 前的事情。双离合变速箱优势很明显，但其内部结构相比下非常复杂。首先它有两组 离合器分别由电子控制并由液压系统推动，而两组离合器分别对应两组行星齿轮，这 样传动轴也相应复杂的被分为两部分，中心的实心传动轴负责一组齿轮，而空心传动 轴负责另一组。可见双离合的内部构造几乎彻底颠覆了传统的变速箱形式。双离合变速箱的工作原理可以简单理解为一个离合器对应奇数挡，另一离合器对应偶数挡。 当车辆挂入一个挡位时，另一个离合器及对应的下一个挡位已经位于预备状态，只要 当双离合变速箱（DCT）前挡位分离就可以立刻接合下一个挡位，因此双离合变速箱 的换挡速度要比一般的自动变速箱甚至手动变速箱还快。此外双离合变速箱虽然内部 复杂，但实际体积和重量相比自动变速箱而言并没有比手动变速箱增加多少，因此装 备双离合变速箱的车型不会为自己平添过多的负担。目前国内在售的装备双离合变速箱的车型屈指可数，具代表性的是大众旗下的迈 腾、G