Bayerische Motoren Werke Aktiengesellschaft

Martin Scherrer

Michael Bauer

Johannes Schmid

Norbert Frisch

Danilo Zimmermann

Juergen Binder

Martin Moser

Holger Hummel

Markus Koban

Bozidar Lukovic

Jochen Pflueger

Stephan Friedrich

A method for operating a fuel cell system of a motor vehicle includes the steps of: i) detecting whether a washing process of the motor vehicle in a wash facility for cleaning the exterior of the motor vehicle is taking place or is imminent and ii) reducing the supply of an oxidizing agent to a fuel cell stack of the fuel cell system when it has been detected that a washing process is taking place or is imminent.

Method for operating a fuel cell system of a motor vehicle, and motor vehicle

A control device for controlling an electric motor vehicle drive having an electric drive, a first fuel-cell-based energy source, and a second fuel-cell-free energy source, has a human-machine interface for detecting a user input for selecting an operating mode for the motor vehicle drive and a control unit. The control unit is configured to receive a selection signal from the human-machine interface indicating a user input for selecting an operating mode for the motor vehicle drive and to control the motor vehicle drive in accordance with the selection signal to transfer the same into a first operating mode in which the first energy source is operated to supply the electric drive with electrical energy or to transfer the same into a second operating mode in which the first energy source is deactivated and in which the second energy source is operated to supply the electric drive with electrical energy.

Control device and method for controlling a fuel-cell-based motor vehicle drive

An exhaust system is provided for a device having at least one fuel cell. The exhaust system includes at least one exhaust duct for transporting anode-side and/or cathode-side exhaust gas of the fuel cell, at least one air inlet for supplying air, at least one air feeding device for feeding in the supplied air, at least one heat exchanger for heating up the supplied air, a mixing region for mixing exhaust gas of the fuel cell transported by way of the exhaust duct with the supplied air and forming a mixed exhaust gas, and a mixed exhaust gas outlet for carrying the mixed exhaust gas away from the exhaust system.

Exhaust gas system and motor vehicle having an exhaust gas system

A fuel cell system, in particular for a motor vehicle, has a fuel cell stack arranged in a housing and a measure for ventilating this housing by coupling the ventilation stream to another gas stream. The ventilation stream is fed to an air stream which is conducted through a radiator of the fuel cell system. The radiator is an ambient air heat exchanger. If the ventilation stream is fed in upstream of the radiator, a venting opening in the housing can be placed in such a way that the ventilation stream is entrained to the radiator by the inflow air stream. Alternatively, the ventilation stream can be fed to an exhaust gas stream of the fuel cell stack and the latter can be fed to the outflow stream of the radiator. A sensor for determining the hydrogen content in a gas stream downstream of the point where the ventilation stream is fed may be provided. An electronic monitoring device which, on the basis of this sensor signal, draws a conclusion about hydrogen which is possibly located in a free state within the housing.

Fuel cell system having a fuel cell stack arranged in a housing, and a measure for ventilating the housing

Growing community of inventors

Poing, Germany

Martin Scherrer