Fuel cell system, vehicle with a fuel cell system and method for detecting degradation mechanisms

摘要

Fuel cell system having at least one fuel cell unit (2) for generating electrical energy, with an electrical memory for storing and delivering electrical energy, with measuring devices and / or sensors for measuring operating parameters of the fuel cell unit (2) and with an electrical load, wherein the fuel cell unit (2 ) is coupled to a diagnostic unit, characterized in that in the diagnostic unit a spatially resolved, detailed physical model for determining physical conditions in the fuel cell unit (2) based on the detected operating parameters is stored, and the diagnostic unit for performing an internal fault analysis and / or spatially resolved detection of degradation and / or for estimation of degradation probabilities within the fuel cell unit (2) performs a continuous monitoring of the physical conditions in the fuel cell unit (2).