ABSTRACT
A theoretical study of the energy efficiency of a gear differential with two internal or external grips in the device for speed change control, when the leading link is either a sun gear or ring gear, has been performed by determining the coefficient of performance efficiency. The control link is a carrier that can be rotated at a different angular velocity or stopped by a closed circuit hydrosystem. The analytical expressions have been obtained to determine the performance efficiency of the driving and the driven links of such transmissions, and graphic dependencies have been constructed using computer simulation.
