![]() ![]() One of these transmissions also accommodates the reverse gear for backing up.Īs you drive a vehicle with a dual-clutch transmission – depending on the gear you select – one of the internal transmissions becomes engaged with the engine and powers the automobile. As a rule, one of the transmissions houses the even-numbered gears while the other controls the odd-numbered gears. But with a dual-clutch transmission, electronics (computers) control clutch engagement by issuing commands to the internal hydraulics of the transmission.Įach of the 2 clutches is linked with one or the other of the 2 internal transmissions. The traditional manual transmission requires you to use a clutch pedal for clutch engagement. How Does a DCT (Dual Clutch Transmission) Work?Ī dual-clutch gearbox comes with 2 clutches but has no clutch pedal. Several other performance-oriented automobiles also use dual-clutch transmissions. The PDK dual-clutch transmission has become a staple in most Porsche streetcars. That was how this vehicle was heavily heralded as one of the best cars of all time. A 962 vehicle with a PDK transmission won its first World Sports Prototype Championship race in 1986 at Monza, Italy. The automotive company used this transmission with profound success with its 962 race cars. Porsche is one of the first automotive companies to develop the Porsche Doppelkupplungsgetriebe (PDK) transmission in the 1980s. The idea began to take shape in the 1980s, with racing as the impetus, much like most automotive improvements. But at the time, the Second World War prevented the engineer from implementing this brilliant idea. He eventually invented the concept on which the modern-day dual-clutch transmissions are built. In the late 1930s, just before World War II, the French engineer searched keenly for an efficient way of automating gear selection in vehicles. Most DCT enthusiasts regard Adolphe Kégresse as the father of the dual-clutch transmission. The Short History/Evolution of Dual Clutch Transmissions This is why dual-clutch transmission is sometimes referred to as a hybrid transmission system, i.e., not fully manual or fully automatic. Drivers can use paddle shifters to manually shift gears if they like. ![]() Most vehicles with a dual-clutch transmission are also equipped with a manual mode. The dual-clutch transmissions make the swap automatically. These gears go in order – like with sequential transmissions – but do not rely on the driver to tell it precisely when to switch gears. One of the clutch discs is for odd-numbered gears, while the other is for even-numbered gears. The computers conveniently do away with the need for you to change gears, making the entire process automated manually. Each of these gears is operated by separate clutches.ĭual-clutch transmissions are designed to combine the ease-of-use and smooth transitions that automatic transmissions are loved for with the performance benefits that manual transmissions bring to the table.ĭual-clutch transmissions operate smoothly via several in-built transmission control modules or computers. In other words, dual-clutch transmissions are automated manual transmissions with 2 sets of gears. They are currently gaining a lot of favor since they offer higher performance and much better fuel economy than regular automatics. A dual-clutch transmission (DCT) refers to a particular type of AMT (Automated Manual Transmission), i.e., one that uses 2 clutches to ‘preload’ the next gear before shifting. ![]()
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