At Volkswagen's 2014 Innovation Workshop, the German giant decided to go to infinity and beyond as they showcased the world's first 10-speed DSG dual-clutch transmission. Ever since since the first Volkswagen dual-clutch gearbox introduced in 2003, the DSG has been the benchmark as no other automatic shifts faster, and no other automatic operates more fuel-efficiently. Now Volkswagen is presenting a newly developed 10-speed DSG for engines with up to 550 Nm of torque. The highly efficient layout of its gear ratios contribute towards further lowering of CO2 emissions.
The new DSG gearbox is based on similar mechanics like in the current 7-speed version and it’s size is also identical. This means the new gearbox can easily fit in Volkswagen MQB platform. According to the German car manufacturer, the tenth gear’s long ratio reduces CO2 emissions and ensures lesser fuel consumption. With this DSG, future SUVs may not even need to gearboxes with separate low and high ratios. The 10-speed DSG also promises smoother gear shifts than the current version.
Volkswagen also unveiled a new 2-litre, four-cylinder TDI engine, which has an output of 238 bhp and powers the recently revealed European version of the Passat. With a power density of 118 bhp per litre displacement, it is the most powerful four-cylinder TDI that has ever been put into production. It also has an impressive top speed of 238 km/h. Volkswagen revealed that an intelligent advanced development of this TDI could increase its power to 268 bhp by the use of a variable valve train, which further optimises gas exchange cycles. This is known as an electric booster.
The new engine would use a stop/start system that deactivates at speeds below 7 km/h using a special coasting function. It also shuts off at higher speeds when the driver steps off the gas. Volkswagen said, this can significantly improve fuel economy when the driver adopts "an anticipatory style of driving".
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