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. 26, 2014
Filed:
Mar. 13, 2012
Scot A. Douglas, Howell, MI (US);
Michael J. Paratore, Jr., Howell, MI (US);
Jason Daniel Mullins, Brighton, MI (US);
Patrick Barasa, Ann Arbor, MI (US);
Scot A. Douglas, Howell, MI (US);
Michael J. Paratore, Jr., Howell, MI (US);
Jason Daniel Mullins, Brighton, MI (US);
Patrick Barasa, Ann Arbor, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
In one exemplary embodiment of the invention, an internal combustion engine includes a fuel system in fluid communication with a cylinder to direct a fuel flow to be mixed with air in the cylinder and an exhaust system in fluid communication with the cylinder to receive an exhaust gas produced by the combustion process, wherein the exhaust system includes an oxidation catalyst, a particulate filter downstream of the oxidation catalyst. The system also includes a control module that determines an amount of energy to be provided by at least one of: a post-injection process, hydrocarbon injector, and heating device, wherein the amount of energy is based on a desired temperature at a selected location in the exhaust system, an exhaust gas flow rate, a temperature of the received exhaust gas, a flow rate and temperature of the exhaust gas at the inlet of the oxidation catalyst.