Electronic throttle control apparatus

摘要

An electronic throttle control apparatus is provided with an electronic throttle (1) including a throttle valve (4) which is opened and closed by a motor (5), and a microcomputer (11) which controls the motor (5). The microcomputer (11) calculates a deviation between a target opening degree which is set by detection of an accelerator sensor (8) and an actual opening degree which is detected by a throttle sensor (6) to calculate a motor control amount in accordance with the deviation and a control gain in correspondence to the deviation. The microcomputer (11) sets a control gain which becomes smaller as the deviation becomes larger, and limits the control gain by the previous control gain at a time when the control gain is larger than the previous control gain. The microcomputer (11) cancels the limit of the control gain when a calculated speed of change of the actual opening degree becomes lower than a predetermined value. <IMAGE>