DCT consists of two sub-transmissions located in one transmission housing. Each sub-transmission is designed like a manual transmission with its clutch assigned to it. Depending on the engine’s torque and space, the clutches can be either a wet for high torque applications or dry design which is more economical.
When driving all gear shifts and clutch movements are electrohydraulic or electromechanically actuated. A sub-transmission is always connected with the engine through the clutch, with the other sub-transmission preselected a gear ready to be actuated. This makes the gear shifts extremely quick with no delays in selecting gears.
ADVANTAGES
More efficient than a torque converter
Fast shifting
Comfort of an automatic with the response characteristics and of manual transmission
