EXHAUST GAS RECIRCULATION CONTROL DEVICE AND EXHAUST GAS RECIRCULATION CONTROL METHOD FOR AN INTERNAL COMBUSTION ENGINE

When an EGR control valve (21) is fixed and a valve opening degree EGRVO of the EGR control valve (21) is greater than a valve-opening threshold value EGRVOth, a limit value Qlim of the intake air amount is set to a prescribed amount Qlim1. Conversely when the EGR control valve (21) is fixed and the valve opening degree EGRVO of the EGR control valve (21) is less than or equal to the valve-opening threshold value EGRVOth, the limit value Qlim of the intake air amount is set to a prescribed amount Qlim2.