wherein the first motor generator torque controlling means controls the torque of the first motor generator so that the fluctuation of {HEAD ~ variation} in the rotation speed of the internal combustion engine is reduced, when the rotation speed of the internal combustion engine is in {TAIL ~ a resonance frequency band} 
wherein the first motor generator torque controlling means controls the torque of the first motor generator so that the fluctuation of { HEAD ~ variation } in the rotation speed of the internal combustion engine is reduced , when the rotation speed of the internal combustion engine is in { TAIL ~ a resonance frequency band }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL