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. 13, 2017
Filed:
Mar. 22, 2011
Jonathan T. Shibata, Whitmore Lake, MI (US);
Joshua D. Cowgill, Hartland, MI (US);
Daniel Sabathil, Seeheim-Jugenheim, DE;
David P. Sczomak, Troy, MI (US);
Jonathan T. Shibata, Whitmore Lake, MI (US);
Joshua D. Cowgill, Hartland, MI (US);
Daniel Sabathil, Seeheim-Jugenheim, DE;
David P. Sczomak, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A fuel control system includes a target rail pressure module. The target rail pressure module determines a target fuel rail pressure of a fuel rail of a direct injection engine. An offset module determines an offset value based on an engine speed of the direct injection engine and at least one of an engine load and an air per cylinder. A modifier module determines a modifier value based on a temperature of the direct injection engine. A rail pressure control module adjusts a current fuel rail pressure of the fuel rail based on the target fuel rail pressure, the offset value and the modifier value.