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 9644561 B1

PDF
Full Text
Expired
Date of Patent:
May. 09, 2017

Filed:

Aug. 27, 2013
Applicant:

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

Inventors:

Stephen William Magner, Farmington Hills, MI (US);

Mrdjan J. Jankovic, Birmingham, MI (US);

Imad Hassan Makki, Dearborn Heights, MI (US);

James Michael Kerns, Trenton, MI (US);

Assignee:

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

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); F02D 41/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1454 (2013.01); F02D 41/0295 (2013.01); F02D 41/1441 (2013.01); F02D 41/1482 (2013.01); F02D 41/1483 (2013.01); F02D 2041/1412 (2013.01); F02D 2041/1419 (2013.01);
Abstract

Various approaches are described for air-fuel ratio control in an engine. In one example, a method include adjusting fuel injection from an anticipatory controller responsive to exhaust oxygen feedback of an exhaust gas sensor positioned upstream of an exhaust catalyst, the anticipatory controller including a first integral term and a second integral term, the second integral term correcting for past fuel disturbances. In this way, it is possible to provide fast responses to errors via the anticipatory controller, while corrected known past fueling errors, on average, via the second integral term.


Find Patent Forward Citations

Magner, Stephen. (2017). System and method to restore catalyst storage level after engine feed-gas fuel disturbance (U.S. Patent No. 9644561). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9644561

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

Loading…