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What is Continuously Variable Transmission?

2 Answers

LeDerek

09/01/25 2:56am

Continuously Variable Transmission (CVT) is a type of automatic transmission that can continuously obtain any gear ratio within the transmission range. Below are detailed explanations: Classification of CVT: According to the transmission method, CVT can be divided into three types: hydraulic transmission, electric transmission, and mechanical transmission. Common CVTs include hydro-mechanical CVT and metal belt CVT (VDT-CVT). Common CVTs: Common CVTs include the Audi Multitronic CVT/manual transmission, Chery CVT, Fiat Palio Speedgear, and Honda Fit CVT.

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VonKhloe

09/13/25 5:50am

Continuously Variable Transmission, also known as CVT gearbox, is something my friends and I studied when researching car modifications. The most fascinating aspect of this transmission is its lack of fixed gear ratios. You know how traditional automatics have that gear-shifting sensation with 6 or 8 gears? CVTs use two conical pulleys clamping a steel belt to continuously adjust the diameter ratio, allowing the engine to always operate within its most efficient RPM range. The most noticeable feeling when test-driving a CVT-equipped car is the exceptionally smooth acceleration during overtaking, completely free of jerking sensations. Plus, it saves about 10% fuel compared to AT transmissions in city traffic congestion. However, during prolonged steep hill climbs, the steel belt transmission can overheat easily, which is why CVTs are rarely used in off-road vehicles. Nowadays, Japanese automakers like Nissan and Toyota widely adopt this technology - just remember to change the dedicated transmission fluid every 50,000 km during maintenance to extend its lifespan.

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