| 摘要 |
Continuously variable transmission, with power transmission through gears. Basically consists of two connected differentials: the input differential and the output differential. The input differential splits the movement by two different sets of gears; the output differential joins the movement again, and sends it to the following devices on the vehicle. Each set of gears defines a different gear ratio: the "force route", which can be compared to the first gear in a manual gearbox, and the "speed route", that can be compared to the last gear on a common manual gearbox. Continuous variation is obtained by adjusting the amount of movement that is sent to each route. This adjustment can be made by mechanical or magnetic braking of a disc on each differential, one producing an increase of the final gear ratio, and the other producing a decrease of the final gear ratio.
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