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:
Jun. 13, 2023
Filed:
Jun. 21, 2021
Applicant:
Transportation Ip Holdings, Llc, Norwalk, CT (US);
Inventor:
David Zielinski, Erie, PA (US);
Assignee:
Transportation IP Holdings, LLC, Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/20 (2006.01); F02M 63/00 (2006.01); F02D 41/40 (2006.01); B61L 3/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/20 (2013.01); B61L 3/006 (2013.01); F02D 41/401 (2013.01); F02D 41/406 (2013.01); F02M 63/0015 (2013.01); F02D 2200/021 (2013.01);
Abstract
Methods and systems are provided for detection of a closing time for a solenoid valve. In one example, a method may include monitoring a current of the solenoid valve, filtering the current, and determining the closing time of the solenoid valve based on each of the current and the filtered current. In some examples, the solenoid valve may be an electrically-actuated fuel injection valve. In some examples, determining the closing time may include using the filtered current to determine an inflection point of the current.