Differential planetary gear device, and differential planetary gear device starting device and starting method

摘要

A differential planetary gear apparatus according to the present invention is characterized in that the differential planetary gear apparatus has a single-pinion-type structure in which one planetary gear ( 3 ) is arranged in a radial direction and one or more planetary gears ( 3 ) are arranged in a circumferential direction in a region between a sun gear ( 1 ) and a ring gear ( 2 ). Each of a drive source ( 4 ), a speed-change motive source ( 5 ), and a driven unit ( 6 ) is disposed at any one of an input side (I), an output side (O), and a speed-change side (T). The speed-change motive source ( 5 ) comprises an electric motor.