What is the difference between AMT and CVT
4 Answers
CVT and AMT have the following differences: 1. Different transmission methods: (1) CVT is a continuously variable transmission, which uses two sets of pulleys for speed change transmission. (2) AMT is a mechanical automatic transmission, which adds a microcomputer-controlled automatic shifting system on the basis of a manual transmission. 2. Different advantages: (1) The power output of a CVT transmission is linear, providing a very smooth driving experience. The mechanical efficiency and fuel economy of CVT transmissions are significantly better than those of conventional automatic transmissions, second only to manual transmissions, offering much better fuel efficiency. (2) AMT combines the advantages of hydraulic automatic transmissions with the high efficiency, low cost, simple structure, and ease of manufacturing of the original manual transmission gear drive.
The difference between AMT and CVT is quite obvious in terms of driving experience. I've driven a car with AMT, which is essentially a manual transmission with an automatic control system. It often has jerky shifts, like a sudden 'clunk' during acceleration, just like shifting gears in a manual transmission—not smooth at all. In contrast, CVT is exceptionally smooth, with no fixed gears, maintaining a single rhythm throughout acceleration, making it much more comfortable in traffic or on long drives. I prefer CVT for city driving because it eliminates the bumpy feeling, whereas AMT, though cheaper, can be tiring over time. Additionally, AMT has a relatively simpler structure, closer to the reliability of a traditional manual transmission, but CVT's smooth design makes it better suited for those prioritizing comfort. Overall, when choosing a car, it depends on your needs—if you want hassle-free driving, go for CVT; if you're on a budget, AMT might be the way to go.
I've researched these two transmission types, and the core difference lies in their technology. AMT is based on a manual transmission, with added electronic controls for automatic shifting. It has actual gear ratio changes, so it drives like a manual but is more user-friendly. CVT is completely different—it uses a pair of pulleys and a belt to achieve infinitely variable ratios, with no fixed gears, theoretically enabling seamless acceleration. I've experienced delays with AMT on slopes or during rapid acceleration, while CVT is smooth but may have slightly weaker power output. In terms of maintenance, AMT parts are more common and easier to repair, whereas CVT's belt system is a bit more complex. Cost-wise, AMT is significantly cheaper. After driving both, I think CVT suits city commuting, while AMT is for those who enjoy control but don't want to deal with a clutch—it's highly practical.
From a fuel-saving perspective, I've compared AMT and CVT models. AMT's fuel consumption is similar to manual transmissions—efficient but wastes energy during gear shift gaps. CVT is better optimized, maintaining the optimal RPM range continuously, making it more fuel-efficient, especially in stop-and-go city driving. My friend drives a CVT car and averages half a liter less per 100 km, saving money in the long run. Of course, AMT cars are 10,000 to 20,000 yuan cheaper when buying, suitable for those on a tight budget. Maintenance is also a factor—AMT is simpler and cheaper to maintain, while CVT repairs can be costly if the belt fails. Overall, CVT is better for prioritizing economy, but initial investment must be balanced. In the trend of new cars, more people are shifting to CVT due to stricter fuel consumption regulations.
