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:
Apr. 18, 2017
Filed:
Aug. 13, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Ivan Pelizzoni, Turin, IT;
Luca Lauritano, Turin, IT;
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/38 (2006.01); F02D 41/28 (2006.01);
U.S. Cl.
CPC ...
F02D 41/3809 (2013.01); F02D 41/28 (2013.01); F02D 2041/281 (2013.01); F02D 2041/283 (2013.01); F02D 2200/0602 (2013.01); F02D 2200/0604 (2013.01);
Abstract
A method of estimating an injection pressure for an internal combustion engine of an automotive system is disclosed that is well-suited for use with a digital pressure sensor, which periodically acquires injection pressure signals. An updated injection pressure value is calculated starting from an injection pressure signal and compensated with a pressure-correcting parameter, based on an elapsed time from the injection pressure signal acquisition, an actual engine speed and an actual fuel injection quantity.