CVT Transmission Pressures

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As we've learned in our previous articles, the CVT transmission uses two variator pulleys, to effect a perceived gear ratio change, using a steel belt. By simply changing the pulley's width, the actual perceived input to output gearing is also changed.

However, the CVT transmission pressures are an entirely different story. The reason for that is that they're really high. A quick study of the CVT, shows that its operation is very simple. The CVT uses a belt that rides on the pulley surfaces of the variators, and the clamping force on the belt is directly related, to the hydraulic pressure on the variator.

The CVT computer controls the ratios, by effecting pulse width modulated solenoids, that apply hydraulic pressure at each variator. The primary variator, pushes the secondary variator with a steel belt. With all CVT transmissions, pressure is the key component to making them work. Belt slipage within the pulley surfaces will ... Get the whole story right now in this video... Enjoy...

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