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. 28, 2015
Filed:
Aug. 01, 2012
Manish Sinha, Pittsford, NY (US);
Daniel C. Di Fiore, Scottsburg, NY (US);
John C. Fagley, Victor, NY (US);
Steven R. Falta, Honeoye Falls, NY (US);
Manish Sinha, Pittsford, NY (US);
Daniel C. Di Fiore, Scottsburg, NY (US);
John C. Fagley, Victor, NY (US);
Steven R. Falta, Honeoye Falls, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system and method for determining whether an anode injector that injects hydrogen gas into an anode side of a fuel cell stack has failed. The method includes monitoring a voltage of the fuel cell stack and performing spectral analysis of the stack voltage to identify amplitude peaks in the stack voltage. The method further includes determining whether the spectral analysis of the stack voltage has identified an amplitude peak at a location where an amplitude peak should occur if the injector is operating properly. If no amplitude peak is identified at that location, then the method determines that the injector is not operating properly. If an amplitude peak is identified at that location, then the method compares the amplitude peak to the desired amplitude peak to identify if it is within a threshold to determine if the injector is operating properly.