Design method of high efficiency power split type differential planetary mechanism including CVT

Abstract

This paper investigates the power split type differential planetary mechanism (SDM) that includes CVT and is possible to operate in high efficiency region. There are two regions indicating high efficiency in the coordinate, horizontal axis of which is ω_1/ω_3 and vertical axis ω_2/ω_3,where ω_3 is angular velocity of input shaft of planetary system, ω_1 and ω_2 are velocities of other two shafts of it. The paper shows planetary mechanism possible to set operating point in the high efficiency region. Using CVT as an apparatus to realize operation in high efficiency region, SDM having high efficiency can be obtained.