Verfahren zum Betrieb eines Brennstoffzellensystems mit Standby-Funktion sowie Brennstoffzellensystem mit Standby-Funktion

DE 102009001630 A1 UPAB: 20101008 NOVELTY - The method involves setting an oxygen supply (8) on a cathode inlet (15) while controlling an active supply of fuel cell, and retaining a fuel cell stack (1) at direct current network (12) to be set. Voltage of the direct current network is connected to the fuel cell stack on a predefined standby voltage level. A fuel cell system is set to a stand-by mode in a normal operation, where the supply of di-oxygen is initially started. Setting and retaining process of the stand-by voltage level is determined at another direct current network. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a fuel cell system comprising a fuel cell stack. USE - Method for operating a fuel cell system (claimed) of a motor vehicle. ADVANTAGE - The fuel cell system is operated with stand-by function with lower power requirements, high efficiency and increased driving comfort, without the need for additional active components and without any noise