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:
Dec. 01, 2015
Filed:
Nov. 15, 2011
Rafat F. Hattar, Milford, MI (US);
Jeffrey M. Hutmacher, Fowlerville, MI (US);
Paul D. Donar, Fenton, MI (US);
Matthew Timothy Hamilton, Novi, MI (US);
Rafat F. Hattar, Milford, MI (US);
Jeffrey M. Hutmacher, Fowlerville, MI (US);
Paul D. Donar, Fenton, MI (US);
Matthew Timothy Hamilton, Novi, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A pressure diagnostic system includes a pressure error calculating module that generates a pressure error based on a first pressure signal and a second pressure signal. A difference calculating module generates a desired pressure difference based on a current desired pressure and a prior desired pressure. A lag filter module applies lag filter to the pressure error to generate a lag filtered pressure error. A fault module selectively generates a fault based on the lag filtered pressure error.