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:
Jun. 01, 2021
Filed:
Jul. 02, 2020
Ford Global Technologies, Llc, Dearborn, MI (US);
Douglas Raymond Martin, Canton, MI (US);
John Eric Rollinger, Troy, MI (US);
Tyler Kelly, Plymouth, MI (US);
Julia Helen Buckland Seeds, Commerce Township, MI (US);
Joshua Schumaker, Dearborn, MI (US);
Adam J. Richards, Royal Oak, MI (US);
Joseph Lyle Thomas, Farmington Hills, MI (US);
John Erik Mikael Hellstrom, Ann Arbor, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for controlling engine knock. In one example, a method may include decreasing intake valve lift at a first set of cylinders where knock is indicated and increasing intake valve lift at a second set of cylinders where knock is not indicated. A stoichiometric air-to-fuel ratio is thereby maintained.