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What is the difference between CVT continuously variable transmission and 7-speed dual-clutch transmission?

2 Answers

VonDaisy

07/28/25 5:25pm

CVT continuously variable transmission and 7-speed dual-clutch transmission differ in the following aspects: 1. Different structures (1) The CVT continuously variable transmission has only two cone pulleys and a steel belt inside; (2) The internal structure of the 7-speed dual-clutch transmission is similar to that of a manual transmission, except that it has an additional set of clutches and a shift control mechanism compared to a manual transmission. 2. Different principles (1) The working principle of the CVT continuously variable transmission relies on the friction between the cone pulleys and the steel belt to transmit power; (2) The working principle of the 7-speed dual-clutch transmission involves connecting two sets of clutches to two input shafts, with both shifting and clutch operations being achieved through an integrated mechatronic module that combines electronic and hydraulic components for power transmission.

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LaVincent

08/11/25 11:41pm

As someone who frequently drives to work in the city, I find the CVT (Continuously Variable Transmission) incredibly smooth to drive. The acceleration is as seamless as ice skating, not to mention fuel-efficient, and it doesn't jerk back and forth annoyingly in traffic jams. However, the downside is that it's too gentle—when you step on the gas, the RPM soars but the speed doesn't pick up quickly, making it feel as dull as driving an electric car. On the other hand, the 7-speed dual-clutch transmission offers clear gear shifts that are lightning-fast, delivering instant push-back sensation when you hit the throttle, making highway overtaking exhilarating. But at low speeds, the clutch engagement can be noticeably jerky, causing discomfort and dizziness. For daily commuting, the CVT is steady and hassle-free; if you prefer excitement, go for the dual-clutch, but be prepared for low-speed discomfort. I've also noticed that modern cars tend to favor CVTs for their fuel efficiency and eco-friendliness, while dual-clutch transmissions are more common in sports models—each has its pros and cons.

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