What are the benefits of a dual-clutch transmission?
1 Answers
The advantage of a dual-clutch transmission is fast acceleration and fuel efficiency. DSG (Direct-Shift Gearbox) is a transmission commonly used by Volkswagen. Here is a detailed introduction to the dual-clutch transmission: 1. Principle: A dual-clutch transmission has two clutches. Clutch I is responsible for 1st, 3rd, 5th gears, and reverse, while Clutch II is responsible for 2nd, 4th, and 6th gears. Simply put, in automatic mode, when starting in 1st gear, Clutch II is already prepared to shift to 2nd gear. When the car reaches a certain RPM, Clutch II shifts to 2nd gear, and Clutch I prepares for 3rd gear, and so on. The entire shifting process takes less than 0.2 seconds, making it faster than manual shifting. In manual mode, it can also perform skip-shifting. 2. Advantages: Conventional automatic transmissions have a torque converter with hydraulic transmission, which causes some power loss during acceleration, though this disappears at higher speeds. However, the DSG transmission is fully engaged, ensuring no power loss whether during acceleration or at high speeds. That said, dual-clutch transmissions are more technologically advanced, so maintenance costs are significantly higher than those of conventional transmissions.