Patent ID: 6976470

Claim:
A control device for a throttle valve comprising: an air flow sensor for detecting a flow rate of air flowing through an intake pipe of an internal combustion engine; a motor for driving the throttle valve disposed in the intake pipe: control means for controlling driving operation of the motor; and a current sensor for detecting a current flowing into the motor, wherein the control means feedback-controls both the output of the air flow sensor and an output of the current sensor, wherein the throttle valve is controlled so that a flow rate of air passing through the throttle valve coincides with an air flow rate required for the engine, wherein the control means feedback-controls an output of the air flow sensor so that a difference between the output of the air flow sensor and the air flow rate required for the engine decreases, and wherein the current sensor averages a voltage of a driving circuit for the motor and detects a current value from a sampled value of the averaged voltage which is sampled at a predetermined timing.