Patent ID: 6293249
Filing Date: 2001-09-25
Classification: F02D

Abstract:
A control unit of an internal combustion engine, the control unit comprising:an accelerator opening sensor for detecting a value corresponding to an opening of an accelerator in accordance with an amount of depression of an acceleration pedal;a throttle-valve opening sensor for detecting an opening of a throttle valve disposed in a suction passage of the engine;a motor for opening and closing the throttle valve in accordance with the value corresponding to the accelerator opening and the value corresponding to the throttle-valve opening;commanded value setting means for setting a commanded value of the opening of the throttle valve in accordance with the accelerator opening value;first controlled variable setting means for setting a first controlled variable of the throttle valve in accordance with the commanded value;second controlled variable setting means for setting a second controlled variable in accordance with the first controlled variable of the throttle valve when the difference between a present opening of the throttle valve and a previous opening of the throttle valve is smaller than a predetermined value; andcontrolled variable output means for outputting the first and second controlled variables to the motor for opening the throttle valve until the opening reaches the commanded value.