| 摘要 |
PURPOSE:To prevent a feeling of physical disorder and a feeling of uncomfortableness from being generated by correcting an intake air amount so that the lower is an intake air temperature the less is the intake air amount adjusted by an intake air amount adjusting means. CONSTITUTION:In a predetermined operation region such as an idle operation region, an intake air amount adjusting means 13 is controlled by a feedback control means 41 being based on an engine speed detected by a speed detecting means 37, feedback controlling the engine speed to a target value. While in warning up time from a very low temperature start, a temperature sensing valve increases its opening increasing an intake air amount from a bypass passage, and the adjusting means 13 prevents its feedback correction amount from its excessiveness, ensuring controllability, increasing an intake air amount and improving very low temperature startability. Here being based on an intake air temperature detected by an intake air temperature detecting means 32, a correcting means 42 performs correction such that the lower is the intake air temperature the intake air amount in charge of the adjusting means 13 is the less corrected. Consequently, a feedback correction amount is decreased, and a fluctuation is decreased of the intake air amount in the transfer time from a feedback zone to an open zone. |
