| 摘要 |
A vehicle (1) includes: an engine (10); an electrically heated catalyst (EHC) (140) electrically heatably configured for purifying exhaust gas of the engine (10); a temperature sensor (125) for sensing the temperature of the EHC (140); and an ECU (150) that controls the EHC (140) in temperature. The ECU (150) performs a first estimation process (an estimation process A) and a second estimation process (estimation processes B and C) to estimate the temperature of the EHC (140) and accordingly controls electric power applied to energize the EHC (140), the first estimation process being performed to estimate the temperature of the EHC (140) based on an output of the temperature sensor before the engine (10) starts, the second estimation process being performed to estimate the temperature of the EHC (140) based on the temperature of the exhaust gas emitted by the engine (10) after the engine (10) is started. |
