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:
Dec. 12, 2017
Filed:
May. 08, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
Steven Wooldridge, Manchester, MI (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Brad Alan Boyer, Canton, MI (US);
James Alfred Hilditch, Canton, MI (US);
Michael Howard Shelby, Plymouth, MI (US);
Chris Paul Glugla, Macomb, MI (US);
Benjamin Richard Petersen, Ann Arbor, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for improving engine knock tolerance, in particular when rapidly ramping in LP-EGR from low levels of EGR. Until a desired LP-EGR rate is achieved, fuel may be delivered as a split injection with at least an intake stroke injection and a compression stroke injection to compensate for the transport delay in EGR filling the intake system. Subsequently, single fuel injection may be resumed.