Structure diagram of Volkswagen Passat engine

dct dual channel and gearbox are adopted. Volkswagen Passat adopts dct power shift, which is mainly composed of dual clutch, three-axis gear transmission, automatic shift mechanism and electro-hydraulic system. Dct transmission is different from ordinary transmission system. It is based on the traditional manual transmission (mt). The working principle of dct is as follows: 1. There are two automatic clutches in DCT transmission. A set of gears are engaged in an odd clutch to output power. Clutch 2, which has selected and engaged a group of gears before shifting to the next gear, is still in the disengaged state. 2. When shifting to the next gear, the clutch in the working state is disengaged from the gear in use and the power is disengaged. At the same time, the clutch 2 engages the pre-selected gear and starts to transmit power to the next gear. 3. During the whole shift period, the two groups of clutches work alternately to ensure that at least one group of gears is outputting power, so there is no intermittent power. That is to say, in the working process of dct transmission, there are always two gears combined together, one is working and the other is preparing for the next step. Dct power shift.