wherein {TAIL ~ the first motor generator torque} controlling {HEAD ~ 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 the rotation speed of the internal combustion engine is in a resonance frequency band 
wherein { TAIL ~ the first motor generator torque } controlling { HEAD ~ 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 the rotation speed of the internal combustion engine is in a resonance frequency band
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH