Patent ID: 7448981

Claim:
A power output apparatus that outputs power to a driveshaft, said power output apparatus comprising: an internal combustion engine that outputs power and has an in-cylinder fuel injection valve for injecting a fuel into a cylinder and a port fuel injection valve for injecting the fuel in an intake port; a torque conversion unit that converts the output power of the internal combustion engine by torque conversion and transmits the converted power to the driveshaft; a target driving force setting module that sets a target driving force to be output to the driveshaft; a target power setting module that sets a target power to be output from the internal combustion engine, based on the set target driving force; a target operating state setting module that sets a target operating state of the internal combustion engine, based on the set target power, a specified allocation rate of fuel injection from the in-cylinder fuel injection valve to fuel injection from the port fuel injection valve, a first constraint, and a second constraint, where the first constraint is imposed on an operating state of the internal combustion engine with shared fuel injection from the in-cylinder fuel injection valve and from the port fuel injection valve at a predetermined first allocation rate, and the second constraint is imposed on the operating state of the internal combustion engine with shared fuel injection from the in-cylinder fuel injection valve and from the port fuel injection valve at a predetermined second allocation rate different from the first allocation rate; and a control module that controls the internal combustion engine and the torque conversion unit to drive the internal combustion engine in the target operating state with fuel injection at the specified allocation rate and to ensure output of the target driving force to the driveshaft.