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. 05, 2016
Filed:
Sep. 04, 2012
Dean R. Kwapis, White Lake, MI (US);
Rafat F. Hattar, Royal Oak, MI (US);
Maher El-jaroudi, Canton, MI (US);
Timothy J. Braman, Williamston, MI (US);
Dean R. Kwapis, White Lake, MI (US);
Rafat F. Hattar, Royal Oak, MI (US);
Maher El-Jaroudi, Canton, MI (US);
Timothy J. Braman, Williamston, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An engine control system includes a fuel system including a first fuel pump in fluid communication with a fuel tank and a second fuel pump in fluid communication with the first fuel pump. A pump control module selectively turns on the first fuel pump when a door opens before an engine is started, the engine is not cranking and a rail pressure of the first fuel pump is less than a predetermined rail pressure.