What is the difference between CVT and AT transmissions?
1 Answers
AT transmissions do not use a clutch for shifting, providing smooth engagement and thus easy operation. CVT transmissions eliminate the gear-shifting process of traditional automatic transmissions, delivering linear power output and exceptionally smooth driving experience. Below are the specific differences between AT and CVT: Principle Differences between AT and CVT: AT transmissions utilize a torque converter, but since its automatic torque conversion range is insufficient, multiple planetary gear sets are connected in series behind the turbine to enhance efficiency. The hydraulic control system automatically operates these planetary gears in response to engine conditions, achieving automatic torque conversion. In contrast, CVT transmissions employ a split pulley system with movable left and right halves that can move closer or apart. The conical pulleys can tighten or expand under hydraulic pressure, adjusting the width of the V-shaped groove by squeezing the steel belt. When the conical pulleys move inward to tighten, the steel belt is pushed outward from the center; conversely, it moves inward when the pulleys expand. Usage Differences between AT and CVT: AT transmissions, with their clutch-free shifting, fewer gears, and significant ratio changes, offer smooth engagement and easy operation. This not only provides convenience for drivers but also ensures comfort for passengers. CVT transmissions, lacking the traditional gear sets of automatic transmissions, eliminate the gear-shifting process entirely, thereby removing shift shock. As a result, CVT transmissions deliver linear power output, ensuring an exceptionally smooth driving experience in real-world conditions.
