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. 15, 2021
Filed:
Mar. 31, 2020
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Ross Pursifull, Dearborn, MI (US);
Jonathan Mark Roberts, Livonia, MI (US);
Joseph Lyle Thomas, Farmington Hills, MI (US);
Paul Hollar, Belleville, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60T 7/12 (2006.01); F02D 41/40 (2006.01); F02M 69/46 (2006.01);
U.S. Cl.
CPC ...
F02D 41/401 (2013.01); F02M 69/465 (2013.01); F02D 2200/0602 (2013.01); F02D 2200/101 (2013.01);
Abstract
Methods and systems for adjusting timing of fuel injectors to reduce cylinder to cylinder air-fuel maldistribution are disclosed. In one example, fuel injection timing is adjusted as a function of pressure ratios that are based on fuel rail pressures observed during injection of fuel. The pressure ratio may be a ratio of a root-mean-square pressure and a scheduling fuel pressure.