Tag Archives: CVT

All You Need To Know About CVT Transmissions

Jeep Compass

The hydrostatic CVT is quite different from other CVTs, in that, it is not a frictional CVT system. Here, variable-displacement pumps are used to control the fluid flow to hydrostatic motors. In this system, a hydrostatic pump on the driving side is operated by the engine’s rotational motion. The rotational motion is then turned into fluid flow by the pump.

On the driven side, we have a hydrostatic motor that creates rotational motion by converting the fluid flow.

Hydrostatic transmissions, often, come with a set of planetary gears and clutches.  This results in a hybrid system referred to as a hydro-mechanical transmission. Such transmission systems allow power transfer from wheel to engine in 3 modes. First, there is the hydraulic transmission of power, which occurs at low speeds, then, we have the mechanical transmission of power, which occurs at high speeds,. In between high and low speeds, the system uses both, mechanical and hydraulic power transmission methods.

Hydro-mechanical transmission systems are used in heavy duty vehicles such as all-terrain vehicles and farm tractors.

On the whole, we have seen the various advantages of a CVT system over other transmission systems. They are more fuel efficient because of how they maintain optimum power range. They offer step-less acceleration, which eliminates the shift shock experienced in other transmission systems.

Get in touch with New Jersey State Auto Auction to get a quote on a pre-owned CVT vehicle.

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New Jersey State Auto Auction

406 Sip Avenue

Jersey City, New Jersey 07306

Phone: 201.355.4138

Website: www.NJStateAuto.com

 

 

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?

#NJSAA

#NJStateAuto

#NJStateAutoAuction

New Jersey State Auto Auction

406 Sip Avenue

Jersey City, New Jersey 07306

Phone: 201.355.4138

Website: www.NJStateAuto.com