Is a 7-Speed Wet Dual-Clutch Transmission Considered a Manual Transmission?
2 Answers
7-speed wet dual-clutch transmission is not a manual transmission; it belongs to the automatic transmission category. Below are specific details about the 7-speed wet dual-clutch transmission: Introduction: The dual-clutch is installed in a sealed oil chamber. While the dry friction plates on the driving disc can provide the most direct transmission efficiency, they are also more prone to overheating. Therefore, their thermal melt resistance is inferior to that of wet clutches, resulting in a relatively smaller torque capacity. Principle: The dual-clutch consists of three similarly sized clutch plates installed coaxially in a stacked arrangement. The two outer clutch plates are connected to gears 1, 3, 5, 7 and gears 2, 4, 6, and reverse, respectively. The middle plate moves between them, engaging or disengaging with the two clutch plates to perform gear shifts.
I've driven many cars equipped with 7-speed wet dual-clutch transmissions, and this is definitely not a manual transmission. This type of transmission is automatic, with two internal clutches working alternately—one managing odd gears and the other even gears—delivering lightning-fast gear shifts without any manual clutch operation required. The wet design means the clutches are immersed in oil, providing better cooling performance, making it ideal for high-performance or high-load driving, with Volkswagen's DSG being a classic example. Driving with this transmission feels as effortless as an automatic, especially in traffic jams where it eliminates the hassle of frequent clutch pedal use, though you can still switch to manual mode for gear-shifting fun. I find its fuel efficiency typically better than traditional automatics, though maintenance costs are slightly higher, requiring attention to regular oil changes.
