Exhaust gas recirculation control device of internal combustion engine

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.