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. 03, 2011
Filed:
Aug. 08, 2008
Kenneth P. Dudek, Rochester Hills, MI (US);
Sai S. V. Rajagopalan, Columbus, OH (US);
Stephen Yurkovich, Columbus, OH (US);
Yann G. Guezennec, Columbus, OH (US);
Shawn W. Midlam-mohler, Columbus, OH (US);
Louis A. Avallone, Milford, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Sai S. V. Rajagopalan, Columbus, OH (US);
Stephen Yurkovich, Columbus, OH (US);
Yann G. Guezennec, Columbus, OH (US);
Shawn W. Midlam-Mohler, Columbus, OH (US);
Louis A. Avallone, Milford, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Abstract
A fuel control system of an engine system comprises a pre-catalyst exhaust gas oxygen (EGO) sensor and a control module. The pre-catalyst EGO sensor determines a pre-catalyst EGO signal based on an oxygen concentration of an exhaust gas. The control module determines at least one fuel command and determines at least one expected oxygen concentration of the exhaust gas. The control module determines a final fuel command for the engine system based on the pre-catalyst EGO signal, the fuel command, and the expected oxygen concentration.