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:
Feb. 26, 2019

Filed:

Mar. 19, 2015
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Kosuke Nakano, Kariya, JP;

Hiroshi Katsurahara, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/24 (2006.01); F02D 41/34 (2006.01); F02M 51/06 (2006.01); F02M 65/00 (2006.01); F02M 45/02 (2006.01); F02D 41/40 (2006.01);
U.S. Cl.
CPC ...
F02D 41/2467 (2013.01); F02D 41/34 (2013.01); F02M 51/061 (2013.01); F02M 65/005 (2013.01); F02D 41/402 (2013.01); F02M 45/02 (2013.01); Y02T 10/44 (2013.01);
Abstract

A fuel injection control device is a control device controlling an injection of fuel by a fuel injector and includes: a setting part that sets a request injection quantity of an injection quantity requested of the fuel injector; a dividing part that divides the request injection quantity set by the setting part into a specified injection quantity and an adjusting injection quantity other than the specified injection quantity; an injection performing part that performs a dividing injection of an adjusting injection and a partial lift injection by the fuel injector, the adjusting injection injecting the adjusting injection quantity of fuel, the partial lift injection finishing a lift of a valve body of the fuel injector in a partial lift state before the valve body reaching a full lift position and injecting the specified injection quantity of fuel; and a learning part that learns an injection characteristic of the fuel injector at the time of the partial lift injection.


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