Patent ID: 7899588

Claim:
An externally chargeable electric/hybrid vehicle, comprising: a battery for supplying electrical power to a motor; a generator that generates electrical power using a driving force of an engine and charges the battery with generated electrical power; and an external charging unit that supplies electrical power from an external power supply device to the battery so as to charge the battery, the externally chargeable electric/hybrid vehicle traveling in a travel mode of either an EV mode in which the vehicle travels not by the driving force of the engine but by a driving force of the motor, or an HV mode in which the vehicle travels using at least one of the driving force of the motor and the driving force of the engine, wherein the externally chargeable electric/hybrid vehicle further includes: a charged amount measuring unit that measures externally charged electrical energy supplied from the external charging unit to the battery; and a travel mode determination unit that determines whether the vehicle travels in the EV mode or the HV mode, based on the externally charged electrical energy, and the externally chargeable electric/hybrid vehicle travels in a travel mode according to a result determined by the travel mode determination unit.