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:
Oct. 09, 2012
Filed:
Mar. 04, 2009
Kenneth J. Cinpinski, Ray, MI (US);
Donovan L. Dibble, Utica, MI (US);
Byungho Lee, Ann Arbor, MI (US);
Scot A. Douglas, Canton, MI (US);
Joseph R. Dulzo, Novi, MI (US);
Kenneth J. Cinpinski, Ray, MI (US);
Donovan L. Dibble, Utica, MI (US);
Byungho Lee, Ann Arbor, MI (US);
Scot A. Douglas, Canton, MI (US);
Joseph R. Dulzo, Novi, MI (US);
Abstract
A control system and method for controlling a fuel system of an engine includes a steady state determination module determining the engine is operating at a steady state and a memory storing a first fuel correction. A fuel pump control module commands a predetermined fuel rail pressure change. The memory stores a second fuel correction after the predetermined fuel rail pressure change. A sensor error correction module determines a fuel rail pressure sensor error based on the first fuel correction and the second fuel correction and determines a fuel rail pressure in response to the sensor error.