POWER TRANSMISSION APPARATUS OF HYBRID ELECTRIC VEHICLE

A power transmission apparatus for a hybrid electric vehicle may include an input shaft receiving an engine torque, first and second planetary gear sets respectively having first to third rotation elements fourth to sixth rotation elements, a first shaft fixedly connected to the first rotation element and the motor-generator and selectively connectable to the input shaft, a second shaft fixedly connected to the second and sixth rotation elements and selectively connectable to the input shaft, a third shaft fixedly connected to the third rotation element and selectively connectable to the transmission housing, a fourth shaft fixedly connected to the fourth rotation element and selectively connectable to the transmission housing, a fifth shaft fixedly connecting the fifth rotation element and an output gear and selectively connectable to the third shaft, and a plurality of engagement elements including at least one clutch and at least one brake.