VEHICLE AND METHOD FOR ENERGIZING CATALYST DEVICE

A vehicle includes: a catalyst device (140) configured to be electrically heatable for purifying exhaust gas of an internal combustion engine (10); a first temperature detection unit (125) for detecting the temperature of the catalyst device (140); a state-of-charge detection unit (120, 121) for detecting the state of charge of a power storage device (70); a second temperature detection unit (126) for detecting the temperature of the power storage device (70); a catalyst power supply device (100) receiving electric power from the power storage device (70) and supplying the catalyst device (140) with electric power for heating it; and a controller (150) controlling the catalyst power supply device (100). The controller (150) calculates first electric power that the power storage device (70) can supply based on the state of charge of the power storage device (70) and an output of the second temperature detection unit (126), and the controller (150) determines according to an output of the first temperature detection unit (125) whether to cause the catalyst power supply device (100) to supply the catalyst device (140) with the first electric power.