Robert Bosch

Sriganesh Sriram

Christoph Zimmer

Jochen Braun

Volker Imhof

Sebastian Gerwinn

Stephan Strahl

Fuel cell unit () in the form of a fuel cell stack () for electrochemical generation of electrical energy, comprising fuel cells () having anodes, cathodes, proton-exchange membranes, gas diffusion layers and bipolar plates, the fuel cell unit () comprising at least one latent heat storage device () with a phase change material () to prevent water from freezing in the fuel cells () or delay such freezing.

Fuel cell unit

The invention relates to a method for checking at least two sensors within an anode path () of a fuel cell system (), having the steps of shutting down the fuel cell system (); closing the shut-off valve () and the purge valve (); opening an internal valve (); detecting the pressure values by means of at least two sensors () within the anode path; checking whether the pressure values of the at least two sensors () differ.

Method for checking at least one sensor within the anode path of a fuel cell system

A device and method are disclosed for operating a fuel cell system having a fuel cell stack. Data are provided that map input variables of the fuel cell system and a position of a cell of the fuel cell stack on a voltage of the cell. A model is trained to map the input variables of the fuel cell system and the position of a cell of the fuel cell stack on a probability distribution for a prediction of a voltage of the cell. Instantaneous input variables of the fuel cell system are determined. A probability for the voltage of the cell or for a total voltage of the fuel cell stack is determined for a cell of the fuel cell stack based on the input variables using the model based on the probability distribution. A state of the fuel cell system is determined based on the probability.

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Ludwigsburg, Germany

Sriganesh Sriram