The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 23, 2021

Filed:

May. 28, 2021
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Kosuke Kato, Kariya, JP;

Yasumasa Ishikawa, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); F02D 41/20 (2006.01); F02D 41/22 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/38 (2013.01); F02D 41/1454 (2013.01); F02D 41/20 (2013.01); F02D 41/221 (2013.01); F02D 2041/2034 (2013.01); F02D 2041/2058 (2013.01); F02D 2041/224 (2013.01);
Abstract

An injection control device includes: a fuel injection quantity command value output unit that outputs a command value for a fuel injection quantity of the fuel injection valve; a fuel injection quantity correction unit that calculates an A/F correction amount and corrects the command value of the fuel injection quantity; and a controller that executes current control on the fuel injection valve. The controller executes current area correction. The injection control device further includes an area correction abnormality determination unit that determines an area correction abnormality. The area correction abnormality determination unit changes the abnormality determination value.


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