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:
Sep. 06, 2016
Filed:
Sep. 12, 2012
Robert J. Moses, Farmington, NY (US);
Balasubramanian Lakshmanan, Pittsford, NY (US);
Daniel T. Folmsbee, Victor, NY (US);
Daniel I. Harris, Honeoye Falls, NY (US);
Swaminatha P. Kumaraguru, Rochester, NY (US);
Robert J. Moses, Farmington, NY (US);
Balasubramanian Lakshmanan, Pittsford, NY (US);
Daniel T. Folmsbee, Victor, NY (US);
Daniel I. Harris, Honeoye Falls, NY (US);
Swaminatha P. Kumaraguru, Rochester, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system and method for limiting voltage cycling of a fuel cell stack during a stand-by mode by providing power from a battery to the stack while the stack is turned off. The method includes monitoring the voltage of each of the fuel cells in the fuel cell stack and determining an average cell voltage of the fuel cells in the fuel cell stack. The method also determines whether the average cell voltage of the fuel cells in the fuel cell stack has fallen below a predetermined voltage value and, if so, applies a voltage potential to the fuel cell stack to increase the average cell voltage above the predetermined voltage value.