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. 06, 2016

Filed:

Dec. 03, 2013
Applicant:

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

Inventors:

Rommel Racelis, Ann Arbor, MI (US);

John Eric Rollinger, Sterling Heights, MI (US);

Robert Roy Jentz, Westland, MI (US);

Assignee:

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

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 35/02 (2006.01); F02D 41/24 (2006.01); F02D 9/02 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02D 41/2474 (2013.01); F02D 41/222 (2013.01); F02D 2009/0227 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/0408 (2013.01); F02D 2200/704 (2013.01); Y02T 10/40 (2013.01);
Abstract

Methods and systems are provided for estimating barometric pressure based on a reference barometric pressure and manifold pressures at two different altitudes. In one example, a method may include adjusting an operating condition of the engine based on barometric pressure during engine operation at throttle angles less than a threshold, the barometric pressure based on a current manifold pressure relative to a reference manifold pressure at a current throttle angle and reference barometric pressure. Further, the method may include adjusting a manifold pressure sensor output based on an offset of the manifold pressure sensor.


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