To reliably perform traveling by output of drive force required for the traveling when supplying a vaporized fuel to an intake system of an internal combustion engine.

When performing purge control of an engine, an engine is operated by a self-sustained operation at an idle rotation speed Nidl to perform the traveling by torque from a motor within a range of input/output limits Win, Wout of a battery until a vapor concentration Cv is estimated (S150, S160, S190 to S230). The vapor concentration Cv is thereby properly estimated. Further, when executing purge control of the engine, on and after the estimation of the vapor concentration Cv, the engine is operated by a load operation to perform the traveling so that travel request power Pd* is output from the engine in response to the travel request power Pd* (S240 to S300). The request torque Tr* is thereby reliably output by a drive shaft to perform the traveling.