Contact model for toroidal type continuously variable transmissions

Abstract

Toroidal type Continuously Variable Transmissions (T-CVT) are mechanical transmission systems where torque is transferred by means of traction forces. This transmission type holds, slip and high contact pressures that affects its performance. Therefore, it is important to analyse the contact behaviour of this transmission to maximize the transferable power and life of the component, with the lowest power loss as possible. In this paper, a contact model to compute T-CVT efficiency is presented.