Patent ID: 9212631
Filing Date: 2015-12-15
Classification: F02D,F02M,Y02T

Abstract:
1. A control apparatus of an internal combustion engine for recirculating part of exhaust gas discharged into an exhaust passage from the internal combustion engine into an intake passage as an EGR gas, comprising: an EGR pipe having an EGR passage formed therein, the EGR passage having the exhaust passage held in communication with the intake passage; a first valve provided in the EGR passage in the vicinity of the exhaust passage and operative to take a desired state between an opened state and a closed state, the first valve being operative to shut off the EGR gas from being flowed into the EGR passage when the first valve is in the closed state; a second valve provided in the EGR passage between the intake passage and the first valve to take a desired state between an opened state and a closed state to adjust an amount of the EGR gas flowing into the intake passage; a foreign matter detection unit that detects a foreign matter adhered to the second valve; a switching unit that switches the first valve from the opened state to the closed state on the condition that the foreign matter detection unit detects the foreign matter adhered to the second valve; and a driving unit that drives the second valve between the opened state and the closed state, the driving unit being operative to drive the second valve between the opened state and the closed state on the condition that the foreign matter detection unit detects the foreign matter adhered to the second valve to have the switching unit switch the first valve from the opened state to the closed state.