Research on Transmission Characteristics of Hydromechanical Continuously Variable Transmission of Tractor

Table 3

Equation of efficiency calculation for ranges HM2 and HM4.

Elements	Torque equation considering power losses
	HM2	HM4	HM2	HM4
	Engine
Pump
Motor
PGM
PGM
Intermediate shaft
Output shaft
Torque ratio
Efficiency