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:
Jan. 29, 2019
Filed:
Feb. 16, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Stefano Nieddu, Turin, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of calculating an angular position of a crankshaft at the occurrence of a fuel injection event includes integrating a first polynomial function, and integrating a second polynomial function. The integrated second polynomial function is then divided by the integrated first polynomial function to calculate the angular position of the crankshaft at the occurrence of the fuel injection event. The calculated angular position of the crankshaft at the occurrence of the fuel injection event may then be correlated to an absolute angular position of the crankshaft, relative to a Top Dead Center position of the crankshaft. The calculated angular position of the crankshaft at the occurrence of the fuel injection event may be used to adjust the injection timing of future fuel injection events.