Patent ID: 9695767
Date: 2017-07-04
CPC Classifications: F02D

Claim:
1. A control device for an internal combustion engine, the control device comprising: an air-fuel ratio detector provided in an exhaust passage of the internal combustion engine and configured to detect an air-fuel ratio of exhaust gas of the internal combustion engine; and an electronic control unit programmed to (a) predict whether vapors have been produced in fuel in a fuel supply device at the time of a start of the internal combustion engine on the basis of a lubricant temperature and coolant temperature of the internal combustion engine and a stop time of the internal combustion engine, (b) execute air-fuel ratio feedback control for bringing the air-fuel ratio in the internal combustion engine close to a target air-fuel ratio by controlling a fuel injection amount of the fuel supply device, the fuel supply device injecting fuel into a combustion chamber of the internal combustion engine, on the basis of the air-fuel ratio detected by the air-fuel ratio detector, and (c) increase the fuel injection amount and decrease a feedback gain in the air-fuel ratio feedback control when the electronic control unit predicts that vapors have been produced as compared with when the electronic control unit predicts that vapors have not been produced.