Patent ID: 8483900

Claim:
A hybrid vehicle comprising: a multi-cylinder internal combustion engine as a first power source for running the vehicle; an electric motor as a second power source for running the vehicle; a power source control unit that controls the internal combustion engine and the electric motor so as to obtain predetermined target outputs from both the internal combustion engine and the electric motor; an air-fuel ratio control unit that feedback controls an air-fuel ratio of exhaust gas of the internal combustion engine so as to obtain a target air-fuel ratio; a battery that stores electric power that is supplied to the electric motor; a state-of-charge detection unit that detects a state-of-charge of the battery; a detection unit that detects an air-fuel ratio imbalance abnormality of the internal combustion engine and identifies an abnormal cylinder that has caused the air-fuel ratio imbalance abnormality; and a correction unit that corrects a fuel injection amount of the abnormal cylinder based on a battery state-of-charge decrease amount from when the air-fuel ratio imbalance abnormality has been detected to when a predetermined time interval has elapsed after detection of the air-fuel ratio imbalance abnormality.