Patent ID: 8897994

Claim:
An exhaust gas recirculation control device of an internal combustion engine, the device comprising: an EGR control valve which controls the flow rate of EGR gas and is provided in an EGR gas passage connecting an exhaust gas passage to an intake air passage; a feedback control unit which outputs a feedback control command signal to control the opening of the EGR control valve, in response to the operation conditions of the internal combustion engine; and a feed-forward control unit which outputs a feed-forward control command signal, wherein the exhaust gas recirculation control device comprises: an adding unit which adds a control command signal from the feed-forward control unit to a control command signal from the feedback control unit; and a selection unit which compares an added value obtained by the adding unit with a limitation signal for the maximum opening of the EGR control valve, and selects the command signal by which the valve opening of the EGR control valve is brought to a closed side, wherein the command signal by which the valve opening of the EGR control valve is brought to an opened side is not outputted.