How Does a Dual-Clutch Transmission Work?

[CollinLee]

The working principle of a dual-clutch transmission is as follows: 1. A dual-clutch transmission uses two clutches, but does not have a clutch pedal. Advanced electronic and hydraulic systems control the clutches in the same way as a standard automatic transmission. However, in a dual-clutch transmission, each clutch operates independently. One clutch controls the odd-numbered gears (first, third, fifth, and reverse), while the other clutch controls the even-numbered gears (second, fourth, and sixth). This allows gear shifts to occur without interrupting the power transmission from the engine to the transmission. 2. At the core of a dual-clutch transmission is a transmission shaft composed of two parts. Unlike a conventional manual transmission, which places all gear wheels on a single input shaft, a dual-clutch transmission distributes the odd and even gear wheels onto two separate input shafts. The outer shaft is hollow, providing space for the nested inner shaft. The hollow outer shaft delivers power to the second and fourth gears, while the inner shaft supplies power to the first, third, and fifth gears.