What is the difference between AMT and CVT in cars?
3 Answers
The difference between AMT and CVT in cars lies in the transmission method: AMT is an Automated Manual Transmission, which adds a microcomputer-controlled automatic shifting system to a manual transmission; CVT is a Continuously Variable Transmission, using two sets of pulleys for variable speed transmission. The functions of transmission fluid are: 1. Keeping the shifting system clean; 2. Lubricating the transmission device. Signs that transmission fluid needs to be changed include: 1. Vehicle shaking and gear shifting jerking; 2. The dashboard showing a transmission high-temperature warning; 3. The car stalling; 4. Unusual noises. Methods for maintaining the transmission include: 1. Regularly checking the fluid level; 2. Not skipping gears when shifting up; 3. Not forcing the transmission into neutral; 4. Not shortening the idle warm-up time; 5. Avoiding gear grinding when shifting.
AMT and CVT are two common types of automatic transmissions, with significant differences. AMT is like a manual transmission with an automated system—the computer shifts gears for you, but it has a simple structure and is much cheaper. I've driven cars with this type of transmission, and you can feel a noticeable jerk during gear shifts, especially in traffic jams or uphill drives, which can be annoying. Fortunately, repairs are inexpensive, and parts are easy to find. CVT, on the other hand, is more advanced—it has no fixed gears and uses a belt sliding on conical pulleys for smooth shifting. The driving experience is incredibly smooth, almost like gliding, with minimal vibration and significantly lower fuel consumption, making it very comfortable in urban traffic. However, CVT components like the belt are prone to wear, and maintenance costs twice as much—a single replacement can cost thousands. The acceleration response is also slightly slower, which might make you feel like the pickup isn’t as punchy. Overall, AMT is suitable for those on a tight budget, while CVT leads in comfort and efficiency.
As an ordinary user, I've driven AMT and CVT vehicles for years, with their key differences lying in performance and reliability. AMT, based on manual transmissions, has slightly slower gear shifts and minor jerks after automation, especially during starts or sudden acceleration, which can be tiring over time. However, it's cheaper, and replacing parts isn't a big concern. CVT is entirely different, offering seamless and smooth acceleration with stepless shifting, quiet and stable at high speeds, and about 10% better fuel efficiency than AMT. But its structure is more complex, with belt systems prone to overheating or wear, and major repairs can be costly. AMT has a shorter lifespan, requiring attention to gear wear after a few years, while CVT is more durable but demands frequent maintenance. Overall, AMT suits budget-conscious buyers, while CVT emphasizes safety and comfort. My family SUV with CVT gives me more peace of mind on trips. The choice depends on daily needs.
