| 摘要 |
PROBLEM TO BE SOLVED: To effectively suppress generation of condensation water.SOLUTION: A control device 1 for an engine 10 includes: an intercooler 26 for cooling intake air; an EGR passage 33 for communicating an exhaust passage 31 with an intake passage 21 upstream of the intercooler 26; an EGR valve 24 for opening/closing the communication of the EGR passage 33; a condensation water storage section 27B for storing condensation water generated by the intercooler 26; a determination section 2 for determining whether or not an operating state of the engine 10 is within a predetermined low load operation region; and a control section 3 for fully opening the EGR valve 24 when the determination that the operating state of the engine 10 is within the predetermined low load operation region is made. When an intake temperature Ti is higher than a predetermined temperature Tth, the determination section 2 sets a region where a load Pe of the engine 10 is equal to or lower than a predetermined load value Peas the predetermined low load operation region. When the intake temperature Ti is equal to or lower than the predetermined temperature Tth, the determination section expands the predetermined low load operation region so that the predetermined load value Peincreases as the speed Ne of the engine 10 increases.SELECTED DRAWING: Figure 1 |
