Tag Archives: Discs

The Variations Of CVT Transmissions

Nissan Versa CVT Transmission

For starters, we have what is known as the Toroidal CVT system. This particular system uses power rollers instead of belts and discs. Though the parts seem very different, they are basically different versions of what you find in the belt and pulley system. In the end what you get is still a Continuously Variable Transmission.

In a Toroidal CVT,

  • One disc is connected to the engine, just like a driving pulley.
  • The second disc is connected to the drive shaft, just like the driven pulley.
  • Rollers, positioned between the discs, function like belts. They are responsible for transmitting power.

The wheels in this system rotate along their axes. They rotate around a horizontal axis and tilt (in/out) around a vertical axis. This allows the wheels to come in contact with the discs.

When the wheels come in contact with the center of the driving disc, they should contact the rim of the driven disc. This cause speed to reduce and torque to increase. In the opposite scenario, the speed increases and the torque goes down. So, with the wheels simply tilting, we have incremental changes in gear ratio.  This ultimately results in instant changes of the gear ratio.

A CVT transmission is a dream to drive; even if it’s in a used car. So, why don’t you get in touch with New Jersey State Auto Auction and find yourself a nice, pre-owned CVT vehicle?

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