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:
Dec. 04, 2012
Filed:
Feb. 16, 2006
Thomas A. Dollmeyer, Columbus, IN (US);
Jennifer W. Rumsey, Greenwood, IN (US);
Larry J. Brackney, Columbus, IN (US);
B. Jerry Song, Columbus, IN (US);
J. Steve Wills, Columbus, IN (US);
John N. Chi, Columbus, IN (US);
John M. Mulloy, Columbus, IN (US);
Thomas A. Dollmeyer, Columbus, IN (US);
Jennifer W. Rumsey, Greenwood, IN (US);
Larry J. Brackney, Columbus, IN (US);
B. Jerry Song, Columbus, IN (US);
J. Steve Wills, Columbus, IN (US);
John N. Chi, Columbus, IN (US);
John M. Mulloy, Columbus, IN (US);
Cummins, Inc., Columbus, IN (US);
Abstract
A method and system for controlling an exhaust temperature for an internal combustion engine is disclosed. The method and system include determining a range of acceptable charge flows within the internal combustion engine to meet a desired exhaust temperature. The method and system further include controlling the charge flows to fall within the range. Control strategies to utilize the charge flow as a lever to control turbine outlet temperature are disclosed. These strategies utilize the inversion of the cylinder outlet temperature virtual sensor as well as a new turbine outlet temperature virtual sensor to determine the charge flow required to achieve the desired turbine outlet temperature given the current turbine inlet and outlet pressure, SOI, charge pressure, charge temperature, fueling, and engine speed.