What does CVT mean?

[OLane]

CVT (Continuously Variable Transmission), directly translated as continuously variable transmission, commonly known as the stepless transmission, as the name implies, does not have specific gears. In operation, it is similar to an automatic transmission, but the change in speed ratio differs from the gear-shifting process of an automatic transmission; it is continuous, thus ensuring smooth and uninterrupted power delivery. In a CVT transmission system, traditional gears are replaced by a pair of pulleys and a steel belt. Each pulley is actually a V-shaped structure composed of two conical discs. The engine shaft connects to the small pulley, which drives the large pulley via the steel belt. Key points to note are as follows: 1. Theoretically, a CVT transmission system can have an unlimited number of gears, allowing for more flexible gear settings. It is easier to achieve a balance between gear ratio, speed ratio, performance, fuel consumption, and exhaust emissions compared to traditional transmission systems. 2. The mechanical efficiency and fuel economy of a CVT transmission are significantly better than those of a conventional automatic transmission, second only to manual transmissions, offering much better fuel efficiency. 3. Compared to traditional automatic transmissions, its cost is slightly higher, and improper operation increases the likelihood of issues.