Planetary coupler gear structure for electrical drive system of motor car, has first planetary gear whose web is connected to sun gear of second planetary gear, and internal gear is connected to abortive web of second planetary gear

摘要

The gear structure has a first planetary gear (11) with element that is driven when an element of a second planetary gear (12) is driven off. The sun gear (11a) of first planetary gear is set as a driving element. The web (11c) of the first planetary gear is connected to the sun gear (12a) of second planetary gear. The internal gear (11d) of the first planetary gear is connected to the abortive web (12c) of the second planetary gear. The internal gear (12d) of second planetary gear is fixed to the housing.