| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device for an internal combustion engine capable of appropriately controlling the flow rate of exhaust gas introduced into an intake air passage in an internal combustion engine having a plurality of EGR passages. SOLUTION: The exhaust gas recirculation device for the internal combustion engine 1 having a low pressure EGR passage 20 having a low pressure EGR valve 23 and a high pressure EGR passage 21 having a high pressure EGR valve 24 is provided with an intake air temperature sensor 32 arranged in the intake air passage 3 of the downstream of an exhaust gas introduction position of the low pressure EGR passage 20, stores a temperature of intake air at a time of adaptation for adjusting an opening of the low pressure EGR valve 23 to introduce the exhaust gas of a target flow rate into the intake air passage 3 via the low pressure EGR passage 20 as a reference value, and corrects a correlation of the opening of the low pressure EGR valve 23 and the flow rate of exhaust gas introduced into the intake passage 3 via the low pressure EGR passage 20 based on a difference between the reference value and the temperature of intake air detected by the intake air temperature sensor 32 when the opening of the low pressure EGR valve 23, an opening of the high pressure EGR valve 24 and the operation state of the internal combustion engine 1 are put into a state of adaptation. COPYRIGHT: (C)2009,JPO&INPIT
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