| 摘要 |
First, an amount of external EGR gas is adjusted so that an amount, by which an amount of internal EGR gas is adjusted, falls within a predetermined range (S102 to S104), and, then, the amount of internal EGR gas is adjusted when the amount, by which the amount of internal EGR gas is adjusted, falls within the predetermined range (S105 to S109) in order to execute a feedback control so that an EGR rate, which indicates a proportion of EGR gas including the external EGR gas and the internal EGR gas to intake air that is supplied to the internal combustion engine, matches a target EGR rate. |
