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:
Aug. 10, 2010
Filed:
Jun. 29, 2007
Todd Corbet, Franklin, IN (US);
Ross C. Berryhill, Nashville, IN (US);
Daniel R. Harshbarger, Columbus, IN (US);
Todd Corbet, Franklin, IN (US);
Ross C. Berryhill, Nashville, IN (US);
Daniel R. Harshbarger, Columbus, IN (US);
Cummins Filtration IP, Inc, Minneapolis, MN (US);
Abstract
A sensor diagnostic method, such as to determine rationality of one of three temperature sensors used in an exhaust aftertreatment system, includes determining the temperature difference between the first and second sensor, determining the temperature difference between the second and third sensor, determining whether the temperature differences are within an acceptable threshold range and comparing the two temperature differences to determine which sensor is in error, if any.