Power output apparatus, method of controlling power output apparatus, and automobile with power output apparatus mounted thereon

摘要

The procedure of the invention sets a revolution speed at an efficient drive point, which is selected among drive points of an engine fulfilling a target power Pe* to be output from the engine, to a tentative revolution speed Netmp1 of the engine. The procedure also calculates a revolution speed that satisfies both a torque demand Tr* to be output to a drive shaft and a charge limit Win of a battery or an electric accumulator and sets the calculated revolution speed to a tentative revolution speed Netmp2 of the engine. The procedure sets the grater between the tentative revolution speed Netmp1 and the tentative revolution speed Netmp2 to a target revolution speed Ne* of the engine and controls the engine and two motors. This arrangement ensures output of a required braking force in response to a driver's accelerator-off action, while taking into account the charge limit of the electric accumulator.