Patent ID: 6182645
Filing Date: 2001-02-06
Classification: F02D,F02M,Y02T

Abstract:
An exhaust gas recirculation control apparatus for an internal combustion engine, comprising:an outward opening type 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, a driving speed of the driving means having an inverse relation to a driving torque thereof when the control valve is opened and closed; andcontrol means for changing the driving speed of the driving means when the control valve is driven in its opening direction in accordance with a force acting on the control valve external to a driving force applied to the control valve by the driving means.