Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2016132998
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection control device which can further accurately determine whether a learning value for correcting a pilot injection amount is normal or abnormal.SOLUTION: A first learning value estimation line indicating a magnitude of a learning value with respect to the number of calculations of the learning value is calculated on the basis of an already-calculated learning value, and a learning value allowable range Awithin which a succeedingly-calculated new learning value Cshould be fallen is defined by using the first learning value estimation line. The first learning value estimation line indicates an inclination which shows how the learning value is changed with each repetition. Accordingly, the accuracy of the learning value allowable range Awithin which the succeedingly-calculated new learning value Cshould be fallen can be enhanced by using the first learning value estimation line. Therefore, it becomes possible to further accurately perform determination for determining whether a calculated new learning value is normal or abnormal on the basis of the set learning value allowable range A.SELECTED DRAWING: Figure 8
Inventors:
ITO HIROYASU
Application Number:
JP2015006178A
Publication Date:
July 25, 2016
Filing Date:
January 15, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02D45/00; F02D41/38; F02D41/40
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo