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:
May. 29, 2012
Filed:
Nov. 24, 2009
Jason Meyer, Dayton, OH (US);
Shawn W. Midlam-mohler, Columbus, OH (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Stephen Yurkovich, Columbus, OH (US);
Yann G. Guezennec, Upper Arlington, OH (US);
Jason Meyer, Dayton, OH (US);
Shawn W. Midlam-Mohler, Columbus, OH (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Stephen Yurkovich, Columbus, OH (US);
Yann G. Guezennec, Upper Arlington, OH (US);
Abstract
An engine control system includes a proportional correction module and a variable proportional gain determination module. The proportional correction module generates a proportional correction for a fuel command to an engine based on a variable proportional gain and a difference between expected and measured amounts of oxygen in exhaust gas produced by the engine. The variable proportional gain determination module determines the variable proportional gain based on a nominal gain and an amount of time since a polarity of the difference has changed, wherein the nominal gain is based on engine operating parameters.