Exhaust gas recirculation control apparatus for internal combustion engine

An exhaust gas recirculation control apparatus for an internal combustion engine, comprising:

• an outward opening control valve for adjusting a flow rate of an exhaust gas recirculated through an exhaust gas recirculation passage of the internal combustion engine, the control valve being arranged so that an exhaust gas pressure is exerted on the control valve in a closing direction thereof;
• driving means for opening and closing the control valve, wherein, when the control valve is opened and closed, a driving speed of the driving means is inversely related to a driving torque thereof;
• and
• control means for setting the driving speed of the driving means, when the control valve is opened from a fully closed position, in accordance with a pressure difference between an exhaust gas pressure and an intake pressure acting on the control valve.

An exhaust gas recirculation control apparatus for an internal combustion engine, comprising:

• an outward opening control valve for adjusting a flow rate of an exhaust gas recirculated through an exhaust gas recirculation passage of the internal combustion engine, the control valve being arranged so that an exhaust gas pressure is exerted on the control valve in a closing direction thereof;
• driving means for opening and closing the control valve, the driving means having a driving speed inversely related to a driving torque thereof when the control valve is opened and closed;
• and
• control means for setting the driving speed of the driving means, when opening the control valve from a fully closed position, to a first speed and, after the control valve has been partially opened, setting the driving speed to a second speed faster than the first speed.