Not all devices based automatic transfer movement in modern cars on one principle at work, but the technical aspects, including differ greatly, and in any case, each principle has its advantages and disadvantages.
Automatic transmission adapter
In this type of transfer of automatic transmissions spin a high degree of comfort torque converter provides When you start to walk and transmission; so it is compatible with high turnover and strong motor torque values.
But Juergen Greiner, director of the German ZF company specialized in the production of transmissions, said that although the transmission signal adapter provides the highest standards of comfort when you start to walk and maneuvers, but it is not commensurate with the high-speed motor sports.
He said Professor Carsten Stael, of gears Research and Development Center at the University of Munich transmissions technical devices, that one of the disadvantages of the transmission signal adapter also with regard to efficiency; where it is part of the engine's power in its components.
But this is offset by the negative aspects of modern low fuel consumption of models equipped with this type of transmissions compared to cars equipped with manual transmission movement.
Vector dual clutch automatic transmission
Enjoy automatic transmission dual clutch, which is known to the Volkswagen company simply as (DSG), the benefits are similar to the transmission signal adapter with respect to comfort and efficiency.
The disadvantage of this type of transmission devices, as indicated by Stael, that the transmission process is not only sequentially, which does not allow the acceleration process across several speeds.
The advantage of the automatic transmission dual clutch shoulder high number of laps the engine is larger than the transmission signal adapter. For this reason, Greiner believes that these kinds of transmissions commensurate with strong mathematical models and engines that spin high number of laps.
Vector seamless movement
With Transmission Smooth No speeds are transport them, but are constantly changing ratio interlock. He said the German expert Stael that this type of transmission devices less efficient compared mated modern automatic transmission, as well as being a waste part of the engine's power.
Transfer smooth motion devices not very popular because of the acoustic characteristics, in addition to the number of laps the engine does not follow the speed and acceleration of the car, which is not used by a lot of drivers.
The advantage of this type of transmission equipment to reduce the car's fuel consumption rates are ideal, because the engine is often in the range of the number of laps the engine, which is the most economical. And producers, who rely on this type of transmission devices, Audi, Toyota, Nissan and Subaru companies.
The scope of use
BMW rely on the automatic transmission and dual clutch automatic transmission signal adapter, thanks to the advantages of installation and weight and comfort desired area when you start to walk, and economic fuel consumption.
While the company believes Mercedes preference for automatic transfer devices with adapters movement with rear-wheel drive cars and automatic transmission with double clutch drive models and the front because of its compact design.