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:
Jul. 19, 2011
Filed:
Dec. 12, 2008
Kenneth J. Cinpinski, Ray, MI (US);
Byungho Lee, Ann Arbor, MI (US);
Donovan L. Dibble, Utica, MI (US);
Michael J. Lucido, Northville, MI (US);
Mark D. Carr, Fenton, MI (US);
Kenneth J. Cinpinski, Ray, MI (US);
Byungho Lee, Ann Arbor, MI (US);
Donovan L. Dibble, Utica, MI (US);
Michael J. Lucido, Northville, MI (US);
Mark D. Carr, Fenton, MI (US);
Abstract
A fuel injector diagnostic system includes a fuel pump control module, a pressure sensor, and a diagnostic module. The fuel pump control module disables delivery of fuel to a fuel rail of an engine. The pressure sensor measures a first pressure of the fuel rail before an injection event and a second pressure of the fuel rail after the injection event on at least one of a plurality of injectors when the engine is running. The diagnostic module diagnoses a fault in the at least one of the injectors based on the first pressure and the second pressure.