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. 02, 2011
Filed:
Mar. 06, 2008
Applicant:
Ravishankar Ramamurthy, Livonia, MI (US);
Inventor:
Ravishankar Ramamurthy, Livonia, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 23/00 (2006.01); F02D 43/00 (2006.01); F01N 3/00 (2006.01); F01N 5/04 (2006.01); F01N 3/02 (2006.01); F01N 3/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbocharger protection system for an engine system that includes a particulate filter and a turbocharger comprises a delta pressure estimator that estimates a pressure difference in a particulate filter. A pressure factor estimator module estimates a pressure factor based on the difference and barometric pressure. A fuel limit estimator module protects the turbocharger by selectively limiting fuel injection to the engine based on the pressure factor.