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