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:
Aug. 03, 2021
Filed:
Jan. 11, 2013
Audi Ag, Ingolstadt, DE;
Sitaram Ramaswamy, West Hartford, CT (US);
Michael L. Perry, Glastonbury, CT (US);
AUDI AG, Ingolstadt, DE;
Abstract
A technique is disclosed of modified shutdown of a fuel cell power plant () having a fuel eel! stack assembly () contained with and supplying electrical power to a mobile vehicle (). The -vehicle characteristically proceeds at intervals to a station. () containing one or more resources (A,B,C, etc) utilized by the fuel cell power plant, for resupply thereof. One such, resource provided at/by the station is electrical energy (A), aid operation of the fuel cell power plant () is controlled to utilize the availability of that electrical energy (A) to maintain, an active protective Hydrogen On condition for greatly extended intervals, for example many hours to several days or longer, via a Power On mode of operation. The Power On mode maintains at least a low level of hydrogen introduction and circulation sufficient to maintain a predetermined presence, e.g., pressure, of hydrogen at the fuel cell stack assembly ().