| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of properly controlling a fuel injection quantity by taking into consideration a variation in the temperature or pressure of each cylinder. SOLUTION: The control device of the internal combustion engine is applied to the internal combustion engine having a plurality of cylinders, and an estimating means estimates the temperature of each cylinder based on the pulsation of the temperature in a collecting part of exhaust gas, and a storage means predetermines and stores the temperature of each cylinder as a map value. A control means increases a post-injection quantity to the cylinder higher in the estimated temperature than the temperature stored as the map value, when an absolute value of a difference between the estimated temperature and the temperature stored as the map value is a predetermined value or higher, and reduces the post-injection quantity or stops post-injection to the cylinder lower in the estimated temperature than the temperature stored as the map value. Thus, the progress of oil dilution in the low temperature cylinder can be properly restrained. COPYRIGHT: (C)2010,JPO&INPIT |
