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:
Jun. 05, 2012
Filed:
Jan. 29, 2009
Loren Devries, Rochester, NY (US);
Bruce J. Clingerman, Palmyra, NY (US);
Abdullah B. Alp, West Henrietta, NY (US);
Aaron Rogahn, Rochester, NY (US);
Loren Devries, Rochester, NY (US);
Bruce J. Clingerman, Palmyra, NY (US);
Abdullah B. Alp, West Henrietta, NY (US);
Aaron Rogahn, Rochester, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for performing a plausibility check of a fuel cell stack anode side pressure sensor to determine whether the pressure sensor is providing an accurate measurement. Prior to system start-up when a cathode side compressor is not providing cathode air to a fuel cell stack, and the cathode side of the stack is at ambient pressure, a pressure measurement from a differential pressure sensor between the anode side and the cathode side of the fuel cell stack is provided. The differential pressure sensor reading is added to a pressure measurement from an ambient pressure sensor, where the sum should be about the same as the pressure measurement from the anode side pressure sensor if the anode side pressure sensor is operating properly.