What does Continuously Variable Transmission (CVT) mean?
2 Answers
Continuously Variable Transmission (CVT) utilizes only two sets of pulleys for gear shifting. It achieves speed variation by altering the contact radius of the drive belt between the driving pulley and the driven pulley. Advantages and disadvantages of CVT: 1. Advantages: Excellent fuel economy, simple and convenient operation, high comfort level, smooth connection, high transmission efficiency, and a wide working speed ratio range. 2. Disadvantages: Low transmission efficiency and limited torque conversion range, although the introduction of electronic control technology in recent years has improved these issues. Complex structure and difficult to repair. Classification of CVT: 1. Variable-angle CVT. 2. CVT (Continuously Variable Transmission).
A CVT (Continuously Variable Transmission) is a type of automatic transmission without fixed gears. To put it simply, it uses two conical pulleys and a belt or chain to change gears. The pulleys can widen or narrow, allowing the gear ratio to change continuously, unlike conventional automatic transmissions that have noticeable gear shifts. When driving, it feels exceptionally smooth, especially in city traffic—acceleration is as natural as flowing water, without the jerky sensation of traditional transmissions. This is because the engine always stays within its most efficient RPM range, unlike conventional transmissions that require frequent shifting. Although its simple structure makes maintenance relatively easy, the belt may wear out over time, leading to slight slippage. However, automakers have improved durability by using chains instead. I recommend beginners try it—it’s easy to handle and can help save about 10% on fuel. The only downside is that the engine sound might feel monotonous during high-speed acceleration. Overall, it’s a great choice for modern cars pursuing smoothness and fuel efficiency.
