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:
Jan. 08, 2013
Filed:
Mar. 17, 2010
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 saturation determination module, an adjustment factor generation module, and a fuel control module. The saturation determination module determines when a first exhaust gas oxygen (EGO) sensor is saturated, wherein the first EGO sensor is located upstream from a catalyst. The adjustment factor generation module generates an adjustment factor for an integral gain of a fuel control module when the first EGO sensor is saturated. The fuel control module adjusts a fuel command for an engine based on differences between expected and measured amounts of oxygen in exhaust gas produced by the engine, a proportional gain, the integral gain, and the integral gain adjustment factor.