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:
Jun. 09, 2015
Filed:
May. 22, 2012
Ognyan N. Yanakiev, Canton, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Cristian Taibi, Turin, IT;
Charles E. Solbrig, Ypsilanti, MI (US);
Janean E. Kowalkowski, Northville, MI (US);
Ognyan N. Yanakiev, Canton, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Cristian Taibi, Turin, IT;
Charles E. Solbrig, Ypsilanti, MI (US);
Janean E. Kowalkowski, Northville, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An internal combustion engine includes a particulate filter that is configured to treat exhaust gas. A method for monitoring the particulate filter includes employing a soot sensor to monitor the exhaust gas downstream of the particulate filter. A fault is detected in the particulate filter when accumulated soot mass indicated by the soot sensor exceeds a soot mass threshold over a course of engine operation between a first regeneration event and a second regeneration event of the particulate filter. A control module associated with operation of the internal combustion engine is notified of the fault.