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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.

Patent No.:

US 10718287 B1

PDFFull Text
Date of Patent:
Jul. 21, 2020

Filed:

Aug. 25, 2016

Injection control device

Applicant:

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

Inventors:

Makoto Tanaka, Kariya, JP;

Syohei Fujita, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Nixon & Vanderhye, P.C.

Primary Examiner:

Phutthiwat Wongwian

Assistant Examiner:

Arnold Castro

Int. Cl.
CPC ...
F02D 41/20 (2006.01); F02M 51/00 (2006.01); F02M 61/10 (2006.01); F02M 51/06 (2006.01); F02D 41/40 (2006.01); F02D 41/34 (2006.01); F02D 41/36 (2006.01); F02D 45/00 (2006.01); F02D 41/14 (2006.01); F16K 31/06 (2006.01);
U.S. Cl.
CPC ...
F02D 41/20 (2013.01); F02D 41/34 (2013.01); F02D 41/36 (2013.01); F02D 41/40 (2013.01); F02D 45/00 (2013.01); F02M 51/00 (2013.01); F02M 51/06 (2013.01); F02M 51/061 (2013.01); F02M 51/0675 (2013.01); F02M 61/10 (2013.01); F02D 2041/1433 (2013.01); F02D 2041/2055 (2013.01); F02D 2041/2058 (2013.01); F02D 2200/0618 (2013.01); F16K 31/0627 (2013.01); Y02T 10/44 (2013.01);
Abstract

An injection control device controls a fuel injection valve driven by an electric power. The injection control device includes a current detection unit to detect a driving current supplied to a solenoid of the fuel injection valve, an identification unit to identify a theoretical model of the driving current in a state where a movable core moved by an electromagnetic force generated by the solenoid is at rest, and a state detection unit to detect a state of the movable core. The state detection unit detects the state of the movable core, based on a deviation between the driving current detected by the current detection unit and the theoretical model.

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