What are the differences between a 7-speed wet dual-clutch transmission and a CVT transmission?
2 Answers
The differences between a 7-speed wet dual-clutch transmission and a CVT transmission are: 1. Different structure: The internal structure of a 7-speed wet dual-clutch transmission is similar to that of a manual transmission; a CVT transmission only has two pulleys and a steel belt inside. 2. Different working principles: The development of the 7-speed wet dual-clutch transmission is based on the manual transmission, with two sets of clutches controlling the even-numbered and odd-numbered gears respectively; the CVT transmission relies on the friction between the pulleys and the steel belt to transmit power. The functions of the transmission are: 1. To change the transmission ratio to meet the traction needs under different driving conditions; 2. To enable reverse driving; 3. To interrupt the power transmission to the drive wheels when the engine starts, idles, the car shifts gears, or needs to stop for power output.
I really enjoy the thrill of driving. The 7-speed wet dual-clutch transmission shifts gears super fast, just like an upgraded manual transmission with seamless power delivery. When taking high-speed corners, you can feel that crisp acceleration and the push-back sensation. The wet design with oil cooling lubrication makes the system more heat-resistant and wear-resistant. CVT transmissions are completely different—they have no fixed gears and rely solely on a belt sliding on conical pulleys, resulting in a silky smooth and quiet acceleration process, almost like an electric car, making it especially comfortable in congested traffic. However, when you floor the throttle, there's a noticeable lag, lacking the excitement of a spirited drive. In terms of fuel efficiency, both are decent, with CVTs generally being slightly more economical. Maintenance-wise, CVT belts can wear out and may lead to expensive repairs, while dual-clutch transmissions occasionally have minor jerks but offer better stability. When choosing a car, I lean more toward dual-clutch transmissions because they bring more driving fun and precise control.
