Dual Clutch Transmission

With the tough CO2 targets for the near future, electric cars and hybridisation are the key elements to improve fuel efficiency. Many of those hybrids and “regular” cars too, comes with dual clutch transmission.

If you are planing to buy a new car, questions about cargo room, technology options, luxuries, cost, full efficiency and other elements will come up. One of those element is the transmission. Traditional manual transmission is not for everyone, they require knowledge and level of perfection to get the car move right.

One of the latest technical solution  for better and more efficient driving experience is car with dual clutch transmission.

What is dual clutch transmission?

The first passenger car to have a dual clutch transmission  was the 2003 Volkswagen Golf. After VW other car companies started to offer dual clutch transmission for extra cost as an option on many of their cars.

For example today the 2015 BMW M4 Coupé comes with 7-gear M dual-clutch transmission. The M Double Clutch Transmission with Drivelogic is an innovative 7-speed Double Clutch Transmission that is specially designed for the BMW M high-rev. engine.

2015 BMW M4 Coupe2015 BMW M4 Coupe

With a traditional manual transmission the clutch is engaged and disengaged, while another gear is selected. During this (while the drivers push the clutch pedal down), the flow of the power from the engine is interrupted, and this causing power drops.

Professional race car drivers can shorter this power drops to a fraction of the but second, but a dual clutch transmission  accomplish gear change even more quickly. Changing gear takes about 8 – 200 milliseconds a dual clutch transmission. This makes the car accelerate more quickly, plus it contribute better fuel efficiency by shorten this power drop to a fraction of a second.

So does a dual clutch transmission, the gear change is even quicker. On this engineering marvel changing gears will take just from 8 to 200 millisecond, depending on the shift program applied and multiple other factors.

How does dual clutch transmission work? Continue Reading…

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