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.:
Date of Patent:
Nov. 01, 2022
Filed:
Sep. 13, 2021
Applicant:
Denso Corporation, Kariya, JP;
Inventors:
Tomoki Mori, Kariya, JP;
Kosuke Kato, Kariya, JP;
Hiroyuki Fukuda, Kariya, JP;
Yohei Suganuma, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/40 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02D 41/401 (2013.01); F02D 41/2438 (2013.01); F02D 2200/04 (2013.01); F02D 2200/0614 (2013.01); F02D 2200/0618 (2013.01); F02D 2200/50 (2013.01);
Abstract
An injection control device includes: an arithmetic unit that obtains a valve-closing time for stopping injection of fuel from a fuel injection valve based on a degree of variation in a time change of a voltage generated when the fuel injection valve is driven based on a required injection amount; an injection amount change unit that increases or decreases the required injection amount; and a learning unit that repeats injection control of the fuel to learn the valve-closing time obtained by the arithmetic unit.