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:
May. 25, 2021
Filed:
Sep. 30, 2019
Ford Global Technologies, Llc, Dearborn, MI (US);
Brien Lloyd Fulton, Bloomfield Hills, MI (US);
Frank M. Korpics, Belleville, MI (US);
Aaron John Oakley, Chelmsford, GB;
Kirk Andrew Parrish, Grass Lake, MI (US);
Sanket Anil Gujarathi, Canton, MI (US);
Nicholas Sovis, Ypsilanti, MI (US);
Dayton Brenner, South Lyon, MI (US);
Joseph Goode, Northville, MI (US);
Nicholas John Vella, Livonia, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for identifying when an exhaust valve of an engine cylinder is not functioning as desired while the engine is being operated to raise a temperature of an exhaust system emissions control device, and in turn taking mitigating action. Thus, in one example a method comprises adjusting an amount of fuel that is provided to each of a plurality of cylinders of an engine during an exhaust stroke of the engine in response to an indication of degraded combustion stemming from a cylinder of the engine. In this way, the engine may continue to be operated to raise the temperature of the exhaust system emissions control device, while mitigating the issue of the degraded combustion.