CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To optimize an operation load relating to future estimation of variation of heat quantity per a unit time and reliability of an estimated value, in correcting a target value of a DPF temperature by using a reference governor to satisfy a restriction on the variation of heat quantity per the unit time of the DPF.SOLUTION: A reference governor calculates a future estimated value of variation of heat quantity per a unit time of a DPF by using a model of a closed loop system including an internal combustion engine and a feedback controller. Here, the reference governor changes a calculation period according to a margin so that the more the margin of the estimated value to a restriction on the variation of heat quantity per the unit time of the DPF is, the longer the calculation period relating to the future estimation is.