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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 9770980 B1

PDFFull Text
Expired
Date of Patent:
Sep. 26, 2017

Filed:

Sep. 18, 2014

System and methods for determining fuel fill level and diagnosing fill level indicator

Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Aed M. Dudar, Canton, MI (US);

Chingpo Liu, Novi, MI (US);

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorneys:

James Dottavio

McCoy Russell LLP

Primary Examiner:

Eric S McCall

Int. Cl.
CPC ...
G01M 15/04 (2006.01); B60K 15/077 (2006.01); G01M 3/02 (2006.01); G01M 3/32 (2006.01); F02M 37/00 (2006.01); F02M 25/08 (2006.01); B60K 15/03 (2006.01);
U.S. Cl.
CPC ...
B60K 15/077 (2013.01); F02M 25/0836 (2013.01); F02M 37/0064 (2013.01); G01M 3/025 (2013.01); G01M 3/3236 (2013.01); B60K 2015/03217 (2013.01); B60K 2015/03361 (2013.01);
Abstract

A method, comprising indicating an amount of a residual fuel in a fuel tank based on an initial rate of change of a fuel tank pressure during a refueling event. The initial rate of change of fuel tank pressure is proportionate to the amount of vapor dome space within the fuel tank, and thus proportionate to the amount of residual fuel left in the fuel tank. In this way, the fuel tank fill level may be accurately quantified, even during cases where the fill level indicator experiences degradation.

Find Patent Forward Citations

Dudar, Aed. (2017). System and methods for determining fuel fill level and diagnosing fill level indicator (U.S. Patent No. 9770980). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9770980

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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