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:
Apr. 29, 2014
Filed:
Jun. 22, 2011
Pranati Yadav, La Grange Park, IL (US);
Phanindra Garimella, Bloomington, IN (US);
Joan M. Wills, Nashville, IN (US);
Daniel R. Hashbarger, Columbus, IN (US);
Ross C. Berryhill, Nashville, IN (US);
Dean H. Dringenburg, Seymour, IN (US);
Pranati Yadav, La Grange Park, IL (US);
Phanindra Garimella, Bloomington, IN (US);
Joan M. Wills, Nashville, IN (US);
Daniel R. Hashbarger, Columbus, IN (US);
Ross C. Berryhill, Nashville, IN (US);
Dean H. Dringenburg, Seymour, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
A system includes an internal combustion engine producing an exhaust stream, a particulate filtering device that treats the exhaust stream, a particulate sensor operatively coupled to the exhaust stream at a position downstream of the particulate filtering device, and a temperature sensor operatively coupled to the exhaust stream. The system includes a controller that interprets a particulate sensor particulate stability condition, interprets a particulate sensor input value and a particulate sensor temperature, compensates the particulate sensor input value in response to the particulate sensor temperature, and filters the compensated particulate sensor input value. The controller determines a soot accumulation value in response to the filtered compensated particulate sensor input value, interprets a diagnostic enable condition, and determines a particulate filter diagnostic value in response to the active diagnostic enable condition and the soot accumulation value. The controller provides the particulate filter diagnostic value to an output device.