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:
Mar. 29, 2005
Filed:
Sep. 21, 2001
Martin Keller, Winterthur, CH;
Andreas Ruegge, Winterthur, CH;
Martin Keller, Winterthur, CH;
Andreas Ruegge, Winterthur, CH;
Sulzer Hexis AG, Winterthur, CH;
Abstract
The method for operating a fuel cell battery (1) comprises an analysis of an integrity state of the battery. This integrity state is determined by means of measurement of operating parameters and a programmed evaluation of the measurement data. The battery is controlled for the purpose of reliable operation in such a manner that the maximum electrical output power is subjected to a limitation which is dependent on the integrity state or an interruption of the operation is initiated. The integrity state can be characterized by at least two parameters, in particular a parameter pair C, d. From a relationship which contains the parameters an internal electrical resistance (R) of the battery can be calculated on the one hand and a statement on the quality of the battery can be derived on the other hand.