What is the principle of dual-clutch transmission?
2 Answers
The principle of a dual-clutch transmission is that one clutch corresponds to the odd-numbered gears, while the other clutch corresponds to the even-numbered gears. When the vehicle is engaged in one gear, the other clutch and the corresponding next gear are already in a ready state. As soon as the current gear is disengaged, the next gear can be engaged immediately. Therefore, the shifting speed of a dual-clutch transmission is faster than that of a conventional automatic transmission or even a manual transmission. Advantages of dual-clutch transmission: 1. Direct shifting, minimal power loss, and low fuel consumption. 2. Through the alternating work of two sets of clutchers, seamless shifting effect is achieved.
The dual-clutch transmission sounds fancy, but its principle is actually quite simple. It's essentially two manual transmissions combined! One handles the odd gears (1, 3, 5), while the other manages the even gears and reverse (2, 4, 6, R). The key lies in having two clutch modules. For example, when you're driving in 1st gear, the clutch for 2nd gear is already prepared to take over. Once a shift is needed, the 1st gear clutch disengages immediately, and the 2nd gear clutch engages, with a speed as fast as a blink, ensuring almost no power interruption. That's why dual-clutch transmissions are praised for their quick shifts and fuel efficiency. Of course, the computer-controlled shifting logic is crucial; otherwise, it can be jerky at low speeds. This mechanism is more precise and complex than traditional automatic transmissions (the ones with torque converters) and is also more troublesome to repair.
