Transmission for hybrid vehicle

A transmission for a hybrid vehicle, the transmission comprising:

• a first input shaft continuously provided with power from an engine;
• a second input shaft selectively provided with power from the engine via a clutch;
• a counter shaft coupled to the first input shaft via a plurality of pairs of sub-shift gears having different gear ratios, sub-shift gears in each of the pairs of sub-shift gears being meshed with each other, wherein one pair of the plurality of pairs of sub-shift gears is selected by an engager/disengager such that the counter shaft transfers power;
• an output shaft coupled to the second input shaft via a plurality of pairs of main shift gears having different gear ratios, main shift gears in each of the pairs of main shift gears being meshed with each other, wherein one pair of the plurality of pairs of main shift gears is selected by an engager/disengager such that the output shaft transfers power;
• a first one-way clutch disposed on a path along which power is transferred from the engine to the output shaft, such that the power is only transferred from the counter shaft in a direction of the output shaft;
• a motor input shaft provided with power from a motor;
• a motor-side shift unit comprising a plurality of pairs of gears having different gear ratios, gears in each of the plurality of pairs of gears being disposed on the motor input shaft and the output shaft and meshed with each other, wherein one pair of the plurality of pairs of gears suitable to a traveling speed is selected by an engager/disengager;
• and
• a second one-way clutch disposed on a path along which power is transferred from the motor to the output shaft, such that the power is only transferred from the motor input shaft in a direction of the output shaft.