Patent ID: 8231490

Claim:
A power train of a hybrid vehicle, comprising: a first single-pinion type planetary gear set including a first sun gear, a first carrier, and a first ring gear, the first sun gear connected to a first motor generator and the first carrier directly connected to an output shaft; a second planetary gear set including a second sun gear, a second carrier, and a second ring gear, the second sun gear directly connected to a second motor generator, the second carrier directly connected to an engine, and the second ring gear directly connected to the first carrier; a first brake configured to fix the first ring gear; a second brake configured to fix the second sun gear; and a clutch configured to be rotatably engaged directly with the first ring gear and the second sun gear, wherein the first planetary gear set and the second planetary gear set are coaxially arranged in parallel, the output shaft is connected with the second ring gear through the first carrier, and the engine is connected with the second carrier through a space between the first planetary gear set and the second planetary gear set.