Control apparatus of internal combustion engine

A control apparatus of an internal combustion engine, comprising:

• an EGR apparatus having an EGR gas supply function to supply, to an intake passage of the internal combustion engine as an EGR gas, at least a part of an exhaust gas discharged from at least one combustion chamber of the internal combustion engine to an exhaust passage of the internal combustion engine;
• an exhaust heat recovery cooler having:
• an exhaust gas supplying function to (i) draw at least a part of the exhaust gas, which is discharged from the at least one combustion chamber, into the exhaust heat recovery cooler apparatus from the exhaust passage, (ii) cool the drawn exhaust gas by cooling water, and (iii) supply the cooled exhaust gas to the EGR apparatus as the EGR gas when an EGR control to supply the exhaust gas to the intake passage as the EGR gas by the EGR apparatus is executed;
• and
• an exhaust heat recovery function to (i) draw at least a part of the exhaust gas, which is discharged from the at least one combustion chamber, into the exhaust heat recovery cooler apparatus from the exhaust passage, (ii) cool the drawn exhaust gas by cooling water, and (iii) return the cooled exhaust gas to the exhaust passage;
• and
• an electronic control unit which controls an activation of the EGR apparatus,
• wherein the electronic control unit is configured to control a heat exchange cooling water flow rate which is a flow rate of the cooling water supplied to the exhaust heat recovery cooler apparatus, to a larger flow rate when (i) the electronic control unit controls the activation of the EGR apparatus to execute the EGR control, and (ii) the exhaust heat recovery cooler apparatus performs the exhaust heat recovery function, than when (i) the electronic control unit controls the activation of the EGR apparatus to execute the EGR control, and (ii) the exhaust heat recovery cooler apparatus does not perform the exhaust heat recovery function.