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Continuously Variable Transmission: A Revolutionary Design

Continuously Variable Transmissions (CVT) have two major types: one does not use a belt to transmit power, such as Toyota’s Hybrid Synergy Drive, which uses mechanical gears; another type of CVT uses belts connecting two pulleys.

The first type has the advantage of real mechanical hard connections, high efficiency and high capacity (can handle large torque), but one limitation is that the Toyota Hybrid Synergy Drive, its mechanical structure can only be used in hybrid powertrains, that transmission will not work in a traditional internal combustion engine powered car.

For the belt type CVT, it can be used in all cars with different types of power sources, and it has unlim...

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