How does a Dual Clutch Transmission (DCT) work?

DCT uses two separate clutches - one for odd gears (1,3,5,7) and one for even gears (2,4,6). While driving in one gear, the next gear is pre-selected on the other shaft. During upshift, one clutch disengages while the other engages simultaneously, providing near-seamless power delivery with shift times under 100ms. This combines automatic convenience with manual efficiency. However, DCTs can be jerky at low speeds and complex/expensive to repair.