What does CVT continuously variable transmission mean?
2 Answers
CVT is a type of car transmission, also known as a continuously variable transmission, which literally translates to continuously variable transmission. CVT does not have specific gears, but the change in speed ratio is different from the gear-shifting process of an automatic transmission—it is continuous, so power transmission is sustained and smooth. The advantage of CVT is that it has a wide working speed ratio range, allowing it to operate at an economically ideal speed, reducing fuel consumption. The disadvantage is that the steel belt cannot transmit excessive torque, otherwise it will slip.
CVT (Continuously Variable Transmission) means the gearbox has no fixed gears and can continuously change the gear ratio. I understand it works through a system of two pulleys and a belt: the pulley diameters adjust based on speed and throttle input, making acceleration smooth like skating, without any jerky shifts. The biggest advantage of this design is fuel efficiency, as the engine always operates at its most economical RPM, whether driving in the city or on the highway. However, a downside is that acceleration may feel sluggish, often called the "rubber band effect," lacking the quick gear-shifting sensation of traditional transmissions. It's commonly found in most small family cars and hybrids, such as Toyota or Honda models. Maintenance-wise, watch out for belt wear—if frequently towing heavy loads or neglecting oil changes, it may lead to slipping or unusual noises. Overall, CVT prioritizes comfort and fuel economy, making it ideal for daily driving.
