Dual Clutch Transmission _ Seminar Report, PPT, PDF for Mechanical

April 2, 2018 | Author: Sachin Yadav | Category: Manual Transmission, Automatic Transmission, Transmission (Mechanics), Clutch, Land Vehicles


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11/27/2016Dual Clutch Transmission | Seminar Report, PPT, PDF for Mechanical Home (../index.php) / Mechanical (mechanical seminar topics.php) / Dual Clutch Transmission Published on Jan 10, 2016 Abstract The report introduces and describes the technology of “Dual Clutch Transmission”, which is a relatively new technology. It has the advantage of both automatic and manual gears. It helps the driver to control the clutch without a clutch pedal, hence giving him a smoother driving. The technology has been used by various car manufactures and is gaining a large market. Introduction A dual-clutch transmission offers the function of two manual gearboxes in one. When a driver wants to change from one gear to another in a standard stick-shift car, he first presses down the clutch pedal. This operates a single clutch, which disconnects the engine from the gearbox and interrupts power flow to the transmission. Then the driver uses the stick shift to select a new gear, a process that involves moving a toothed collar from one gear wheel to another gear wheel of a different size. Devices called synchronizers match the gears before they are engaged to prevent grinding. Once the new gear is engaged, the driver releases the clutch pedal, which re-connects the engine to the gearbox and transmits power to the wheels. So, in a conventional manual transmission, there is not a continuous flow of power from the engine to the wheels. Instead, power delivery changes from on to off to on during gearshift, causing a phenomenon known as "shift shock" or "torque interrupt." For an unskilled driver, this can result in passengers being thrown forward and back again as gears are changed. A dual-clutch gearbox, by contrast, uses two clutches, but has no clutch pedal. Sophisticated electronics and hydraulics control the clutches, just as they do in a standard automatic transmission. In a DCT, however, the clutches operate independently. One clutch controls the odd gears (first, third, fifth and reverse), while the other controls the even gears. http://www.seminarsonly.com/mech%20&%20auto/dual-clutch-transmission-seminar-report-ppt.php 1/5 com/mech%20&%20auto/dual-clutch-transmission-seminar-report-ppt. This type of transmission is sometimes called a sequential manual transmission. PPT. In 1939. A manual-style transmission operated by computer is often called an automated transmission rather than an automatic. Manual transmissions are characterized by gear ratios that are selectable by locking selected gear pairs to the output shaft inside the transmission. only allow the driver to select the next-higher or next-lower gear. although automobile manual transmissions have been built with as few as two and as many as eight gears. Conversely. Dual Clutch Transmissions The man who invented the dual-clutch gearbox was a pioneer in automotive engineering. which he hoped to use on the legendary Citroën "Traction" vehicle.It wasa type of vehicle equipped with endless rubber treads allowing it to drive off-road over various forms of terrain. In 1986. adverse business circumstances prevented further development. or PDK. Both Audi and Porsche picked up on the dual-clutch concept. such as those commonly mounted on motorcycles and some types of racing cars. Unfortunately. Sequential transmissions are commonly used in auto racing for their ability to make quick shifts.php 2/5 . Contemporary automobile manual transmissions typically use four to six forward gears and one reverse gear. although its use was limited at first to racecars.seminarsonly. Automatic transmissions that allow the driver to manually select the current gear are called Manumatics. PDF for Mechanical Manual Transmission Manual transmissions often feature a driver-operated clutch and a movable gear stick. most automatic transmissions feature epicyclic (planetary) gearing controlled by brake bands and/or clutch packs to select gear ratio. a Porsche 962 won the Monza 1000 Kilometer World Sports Prototype Championship race the first win for a car http://www. AdolpheKégresse is best known for developing the half-track.11/27/2016 Dual Clutch Transmission | Seminar Report. Kégresse conceived the idea for a dual-clutch gearbox. Most automobile manual transmissions allow the driver to select any forward gear ratio ("gear") at any time. but some. The 956 and 962C racecars included the Porsche Dual Klutch. DCT seems to be the next manual. Volkswagen has been a pioneer in dual-clutch transmissions. and the Seat Altea. Audi also made history in 1985 when a Sport quattro S1 rally car equipped with dual-clutch transmission won the Pikes Peak hill climb. Previous (mechanical seminar topics.11/27/2016 Dual Clutch Transmission | Seminar Report. however.com/mech%20&%20auto/dual-clutch-transmission-seminar-report-ppt. It is also the best transmission for the high end performance cars and racing cars where cost is an issue.while eliminating more or less the jolts produced by manual gear shifting. without altering engine performance in any way. With so many advantages of Dual Clutch transmission over the manual.seminarsonly. has not been feasible until recently. European automobiles equipped with DCTs include the Volkswagen Beetle. Commercialization of the dual-clutch transmission. It can be described as the best solution to improve acceleration: 1-100 km/hr figures. a race up the 4. and Jetta as well as the Audi TT and A3. atleast for beginners. Touran. Golf. Toledo and Leon.300-meter-high mountain. PDF for Mechanical equipped with the PDK semi-automatic paddle-shifted transmission.php 0 Share 48 3/5 . PPT. as discussed before. 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