Patent ID: 8584649

Claim:
An engine control apparatus including a throttle actuator driving opening/closing of a throttle valve; throttle opening detection means for detecting an actual opening of the throttle valve; and control means for controlling feedback of the throttle actuator by using a predetermined control gain so that the actual opening of the throttle valve that is detected by the throttle opening detection means becomes a target opening, wherein the control means comprises: an idle stop/start control unit provided with idle stop/start determination means for inputting at least an engine cooling water temperature, vehicle speed, and brake information and determining execution of idle stop/start, and target opening setting means for setting a target opening in an idle stop/start control period; and a throttle control unit provided with proportional gain correction coefficient operation means for correcting a proportional gain that is used in a throttle opening feedback control operation to a value that is larger than a proportional gain outside the idle stop/start control period in an engine idle stop/start control period that is determined by the idle stop/start determination means, throttle opening feedback control means for performing a throttle opening feedback control operation based on an opening deviation between a target opening and an actual opening by using a control gain including the corrected proportional gain, and PWM driving means for inputting an operation amount to a motor that is output from the throttle opening feedback control means and outputting a voltage that is in proportion to the operation amount to the motor.