Patent ID: 7603980

Claim:
An electronic throttle control apparatus comprising: a throttle valve that adjusts an amount of supply air to an internal combustion engine; a throttle position sensor that detects an opening of the throttle valve; a throttle actuator that drives the throttle valve; an accelerator position sensor that detects an operation amount of an accelerator pedal; a target throttle opening value calculating unit that calculates a target throttle opening value on the basis of an accelerator opening amount detected by the accelerator position sensor; a throttle control unit that generates an operation amount such that the target throttle opening value and the opening of the throttle valve detected by the throttle position sensor coincide with each other and outputs the operation amount to the throttle actuator to perform feedback control; and a sensor abnormality detecting unit that calculates, in an operation state in which a change in the target throttle opening value is equal to or smaller than a predetermined value, a sum of an absolute value of a change in a control deviation obtained from the target throttle opening value and the throttle position sensor detection value per a predetermined time and detects an abnormality of the throttle position sensor according to comparison of the sum of the absolute value of the change in the control deviation and a predetermined value set in advance.