| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine that precisely and accurately determines operation of a master vac without adding a new detector or without being affected by variations of the internal combustion engine or detectors. <P>SOLUTION: A controller (59) includes: an air-intake pipe pressure estimator (59A) for estimating pressure of an air-intake pipe; and a master vac operation determiner (59B) for calculating a differential value between the air-intake pipe pressure detected by an air-intake pipe pressure detector (54) and the air-intake pipe pressure estimated by the air-intake pipe pressure estimator (59A), and determining, when the calculated differential value is more than or equal to a preset threshold value, that the master vac (64) is in operation. <P>COPYRIGHT: (C)2012,JPO&INPIT |
