Appendix 4

From the free body diagram (Figure 9) and under equilibrium conditions for the CVT input wheel, where T_x represents the torque in element x,

where,

From figure 1,

From the planetary gear set,

For the CVT,

Solving for r₁ from Equation g and Equation h,

Equation 1 is obtained solving for F_BELT/1 from equations a, b, c, d, e, f and i:

Equations 2, 3 and 4 are obtained by combining the Willis equation for a planetary gear set and the dynamic relationships among the sun and the ring by the CVT and the simple train.