An engine torque of a combustion engine 2, in which an efficiency characteristic can be selected from those in a lean state and in a stoichiometric state, and {HEAD ~ a motor torque} of a generator/motor 3 are transmitted to a driving output system as {TAIL ~ a driving torque} 
are transmitted as
An engine torque of a combustion engine 2 , in which an efficiency characteristic can be selected from those in a lean state and in a stoichiometric state , and { HEAD ~ a motor torque } of a generator / motor 3 are transmitted to a driving output system as { TAIL ~ a driving torque }
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 OTH OTH OTH OTH OTH OTH REL REL OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL