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:
Jul. 07, 2015
Filed:
Aug. 07, 2012
Gopal Krishna Chamarthi, Saline, MI (US);
John G. Fraser, Tecumseh, CA;
Arnold Kromberg, Howell, MI (US);
Anil Shah, Canton, MI (US);
Thomas C. Erickson, Ypsilanti, MI (US);
Brien Lloyd Fulton, West Bloomfield, MI (US);
Scott Eeley, South Lyon, MI (US);
Gopal Krishna Chamarthi, Saline, MI (US);
John G. Fraser, Tecumseh, CA;
Arnold Kromberg, Howell, MI (US);
Anil Shah, Canton, MI (US);
Thomas C. Erickson, Ypsilanti, MI (US);
Brien Lloyd Fulton, West Bloomfield, MI (US);
Scott Eeley, South Lyon, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for detecting hydrocarbon ingestion into an engine based on the simultaneous monitoring of cylinder imbalance and an elevated exhaust exotherm. Crankshaft acceleration data is monitored during steady-state and transient engine conditions while exhaust temperatures are estimated during non-regeneration conditions. Engine speed and load is limited to reduce further hydrocarbon ingestion.