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. 17, 2007
Filed:
Jan. 17, 2006
Qi MA, Farmington Hills, MI (US);
Stephen Yurkovich, Columbus, OH (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Stephen K. Fulcher, Clovis, NM (US);
Qi Ma, Farmington Hills, MI (US);
Stephen Yurkovich, Columbus, OH (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Stephen K. Fulcher, Clovis, NM (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A fuel control system for regulating fuel to cylinders of an internal combustion engine during an engine start and crank-to-run transition includes a first module that determines a raw injected fuel mass based on a utilized fuel fraction (UFF) model and a nominal fuel dynamics (NFD) and a second module that regulates fueling to a cylinder of the engine based on the raw injected fuel mass until a combustion event of the cylinder. Each of the UFF and NFD models is calibrated based on data from a plurality of test starts-that are based on a pre-defined test schedule.