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. 24, 2012
Filed:
Sep. 25, 2009
Andrew W. Osburn, Nashville, IN (US);
Mert Geveci, Bloomington, IN (US);
Richard J. Gustafson, Columbus, IN (US);
Erik L. Piper, Columbus, IN (US);
Andrew W. Osburn, Nashville, IN (US);
Mert Geveci, Bloomington, IN (US);
Richard J. Gustafson, Columbus, IN (US);
Erik L. Piper, Columbus, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
A method is disclosed for adjusting a target EGR mass flow in response to a current charge flow and target EGR fraction. The method includes interpreting an air-fuel ratio and a target air-fuel ratio. The method further includes interpreting a charge flow and a target EGR fraction. The method further includes determining an adjusted target EGR mass flow based on the air-fuel ratio, the target air-fuel ratio, the charge flow, and the target EGR fraction. The method further includes controlling an actuator based on the adjusted target EGR mass flow.