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:
Sep. 03, 2019

Filed:

Mar. 03, 2017
Applicant:

Woodward, Inc., Fort Collins, CO (US);

Inventors:

Kamran Eftekhari Shahroudi, Fort Collins, CO (US);

Suraj Nair, Fort Collins, CO (US);

Assignee:

Woodward, Inc., Fort Collins, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/04 (2006.01); G01R 17/00 (2006.01); F16K 37/00 (2006.01); F02D 41/20 (2006.01); F02D 41/24 (2006.01); H01F 7/18 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
G01R 19/04 (2013.01); F02D 41/20 (2013.01); F02D 41/248 (2013.01); F02D 41/2422 (2013.01); F02D 41/2467 (2013.01); F16K 37/0083 (2013.01); G01R 17/00 (2013.01); H01F 7/1805 (2013.01); F02D 41/2096 (2013.01); F02D 41/221 (2013.01); F02D 2041/2037 (2013.01); F02D 2041/2048 (2013.01); F02D 2041/2055 (2013.01); F02D 2200/063 (2013.01); F02D 2200/0618 (2013.01); H01F 7/1844 (2013.01);
Abstract

The subject matter of this specification can be embodied in, among other things, a method for characterizing a fluid injector that includes receiving a collection of waveform data, identifying a pull locus, determining a detection threshold level value, identifying a first subset of the collection of data representative of a selected first electrical waveform of the collection of electrical waveforms, identifying an opening value, identifying a representative closing value, identifying an anchor value, identifying a second subset of the collection of data based on the collection of data, the pull locus, the first subset, and the opening value, identifying a maximum electrical value, identifying an opening locus based the collection of data, the anchor value, and the maximum electrical value, identifying a hold value, and providing characteristics associated with the fluid injector comprising the pull locus, the opening locus, the hold value, the anchor value, and the representative closing value.


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