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:
Aug. 11, 2026

Filed:

Dec. 16, 2024
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Mitchell B. Juchems, Eureka, IL (US);

Daniel R. Puckett, Peoria, IL (US);

Michael Linde, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/40 (2006.01); F02D 41/30 (2006.01);
U.S. Cl.
CPC ...
F02D 41/401 (2013.01); F02D 41/30 (2013.01);
Abstract

A method includes applying a first current to a control valve having an actuated state and a resting state, the first current causing the control valve to move from the resting state to the actuated state. The method includes applying a second current that causes the control valve to remain in the actuated state, the second current having an amplitude that is lower than an amplitude of the first current. The method includes maintaining the second current for a duration. The method includes stopping the second current at an end of the duration to allow the control valve to return to the resting state. The method includes measuring a control valve return time. The method includes setting an amplitude of current for a fuel injection event based on the control valve return time.


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