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.:
Date of Patent:
Nov. 08, 2016
Filed:
May. 29, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/04 (2006.01); F02D 41/18 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02D 41/18 (2013.01); F02D 41/144 (2013.01); F02D 2200/0402 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/0411 (2013.01);
Abstract
A method for estimating the volumetric efficiency in an internal combustion engine in real time includes the following steps: (a) monitoring an oxygen percentage of gases in the intake manifold using an oxygen sensor coupled to an intake manifold; and (b) determining, via a control module, a volumetric efficiency of the internal combustion engine in real time based, at least in part, on the oxygen percentage of the gases in the intake manifold.