POWER TRAIN OF HYBRID VEHICLE

摘要

A power transmission device of a hybrid vehicle is provided to decrease length by driving a chain with a sprocket outside a ring gear of a planetary gear mechanism, and to adjust the deceleration gear ratio easily by placing second, third and fourth shaft power transmission device gears in a generator. A power transmission device of a hybrid vehicle includes a first shaft in which an engine, a generator(110), a motor(112) and a planetary gear mechanism between the generator and the motor are installed, a second shaft in which a second shaft driven gear(120) connected to the first shaft by receiving power from the planetary gear mechanism and a second shaft drive gear(122) connected to the second shaft driven gear and turned are mounted, a third shaft in which a third shaft driven gear(130) connected to the second shaft by receiving power from the second shaft driven gear and a third shaft drive gear(132) connected to the third shaft driven gear and turned are mounted, and a fourth shaft connected to a differential ring gear(140) engaged with the third shaft drive gear and connected to the third shaft and a differential unit(142). A sprocket drive gear is integrally formed in an outer periphery of a ring gear of the planetary gear mechanism.