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:
Jul. 18, 2023
Filed:
Mar. 09, 2017
Volkswagen Ag, Wolfsburg, DE;
Audi Ag, Ingolstadt, DE;
VOLKSWAGEN AG, Wolfsburg, DE;
AUDI AG, Ingolstadt, DE;
Abstract
The disclosure relates to a fuel cell system comprising a fuel cell stack for providing an electrical power Pdepending on a power demand, at least one auxiliary unit for operating the fuel cell stack with an electrical power consumption P, at least one consumer with an electrical power request P, and a control unit for regulating the power demand as well as a method for controlling such a fuel cell system. It is provided that the control unit is configured to selectively operate the fuel cell system in a first operating mode or in a second operating mode, whereby the fuel cell stack is turned off depending on the operating mode upon the falling below of an optimal efficiency degree operating point P(η) of the fuel cell system or a minimum operating point Pof the fuel cell stack. In particular, at least one auxiliary unit is also turned off in the first operating mode, when the optimal efficiency degree operating point decreases.