Patent ID: 7565939

Claim:
A power output apparatus that outputs power to a driveshaft, said power output apparatus comprising: an internal combustion engine that is driven to output power; an electric power-mechanical power input output mechanism that is connected with an output shaft of the internal combustion engine and with the driveshaft and outputs at least part of the power of the internal combustion engine to the driveshaft through input and output of electric power and mechanical power; an accumulator unit that transmits electric power to and from the electric power-mechanical power input output mechanism; an intake air flow regulation unit that regulates an intake air flow into the internal combustion engine; and a control module that controls the intake air flow regulation unit to supply a preset idling intake air flow in a preset very low temperature range, which is set to a greater value than a value in an ordinary temperature range, to the internal combustion engine immediately after its start and attain an idling operation of the internal combustion engine when a temperature of the accumulator unit is in the preset very low temperature range, and corrects the idling intake air flow to make a rotation speed of the internal combustion engine in the idling operation sufficiently approach to a predetermined idling rotation speed, after the correction of the idling intake air flow, said control module controlling the internal combustion engine with reflection of the correction of the idling intake air flow and controlling the electric power-mechanical power input output mechanism to generate electric power by using the power of the internal combustion engine and to charge the accumulator unit with the generated electric power within an input limit of the accumulator unit.