DE102017217880A1 - Method for parking a fuel cell system - Google Patents
Method for parking a fuel cell system Download PDFInfo
- Publication number
- DE102017217880A1 DE102017217880A1 DE102017217880.9A DE102017217880A DE102017217880A1 DE 102017217880 A1 DE102017217880 A1 DE 102017217880A1 DE 102017217880 A DE102017217880 A DE 102017217880A DE 102017217880 A1 DE102017217880 A1 DE 102017217880A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel cell
- temperature
- exhaust gas
- gas turbine
- cell system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04253—Means for solving freezing problems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/34—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04228—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during shut-down
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04303—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04492—Humidity; Ambient humidity; Water content
- H01M8/04522—Humidity; Ambient humidity; Water content of cathode exhausts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
Verfahren zum Abstellen eines Brennstoffzellensystems (1), wobei das Brennstoffzellensystem (1) eine Brennstoffzelle (2), eine Luftzuführungsleitung (3) zum Zuführen eines Oxidationsmittels in die Brennstoffzelle (2) und eine Abgasleitung (4) zum Abführen des Oxidationsmittels aus der Brennstoffzelle (2) aufweist. Ein Verdichter (11) ist in der Luftzuführungsleitung (3) angeordnet, und eine Abgasturbine (13) ist in der Abgasleitung (4) angeordnet.
Das Verfahren weist folgende Schritte auf:
a) Ermitteln (130) einer Temperatur (T) im Bereich des Brennstoffzellensystems (1)
b) Überprüfung (140) durch ein Steuergerät, ob die Temperatur (T) unterhalb einer zulässigen Grenztemperatur (TL) liegt,
c) Einleiten zumindest einer Maßnahme (150) zur Vermeidung des Festfrierens der Abgasturbine (13), wenn die Temperatur (T) unterhalb der zulässigen Grenztemperatur (TL) liegt.
A fuel cell system stopping method (1) wherein the fuel cell system (1) comprises a fuel cell (2), an air supply pipe (3) for supplying an oxidant into the fuel cell (2), and an exhaust pipe (4) for discharging the oxidizer from the fuel cell (3). 2). A compressor (11) is arranged in the air supply line (3), and an exhaust gas turbine (13) is arranged in the exhaust line (4).
The method comprises the following steps:
a) determining (130) a temperature (T) in the region of the fuel cell system (1)
b) checking (140) by a control device as to whether the temperature (T) is below a permissible limit temperature (T L ),
c) introducing at least one measure (150) to prevent the freezing of the exhaust gas turbine (13) when the temperature (T) is below the permissible limit temperature (T L ).
Description
Die Erfindung betrifft ein Verfahren zum Abstellen eines Brennstoffzellensystems, wobei das Brennstoffzellensystem insbesondere in einem Fahrzeug verwendet wird.The invention relates to a method for parking a fuel cell system, wherein the fuel cell system is used in particular in a vehicle.
Stand der TechnikState of the art
Brennstoffzellensysteme sind aus dem Stand der Technik bekannt, beispielsweise aus der Offenlegungsschrift
Offenbarung der ErfindungDisclosure of the invention
Das Abgas weist naturgemäß eine hohe Feuchtigkeit auf, so dass die Komponenten in der Abgasleitung bei niedrigen Umgebungstemperaturen dem Risiko des Festfrierens ausgesetzt sind. Erfindungsgemäß wird nun ein Verfahren bereitgestellt, welches ein Festfrieren der Abgasturbine des Brennstoffzellensystems verhindert.Naturally, the exhaust gas has a high level of moisture, so that the components in the exhaust pipe are exposed to the risk of freezing at low ambient temperatures. According to the invention, a method is now provided which prevents the exhaust gas turbine of the fuel cell system from freezing.
Dazu umfasst das Brennstoffzellensystem eine Brennstoffzelle, eine Luftzuführungsleitung zum Zuführen eines Oxidationsmittels in die Brennstoffzelle und eine Abgasleitung zum Abführen des Oxidationsmittels aus der Brennstoffzelle. Ein Verdichter ist in der Luftzuführungsleitung angeordnet, und eine Abgasturbine ist in der Abgasleitung angeordnet. Vorteilhafterweise sind Verdichter und Abgasturbine auf einer Welle angeordnet, so dass die Abgasturbine den Verdichter antreibt.
Das Verfahren weist folgende Schritte auf:
- a) Ermitteln einer Temperatur (
T ) im Bereich des Brennstoffzellensystems - b) Überprüfung durch ein Steuergerät, ob die Temperatur (
T ) unterhalb einer zulässigen Grenztemperatur (TL ) liegt, - c) Einleiten zumindest einer Maßnahme zur Vermeidung des Festfrierens der Abgasturbine, wenn die Temperatur (
T ) unterhalb der zulässigen Grenztemperatur (TL ) liegt.
The method comprises the following steps:
- a) Determining a temperature (
T ) in the area of the fuel cell system - b) Check by a control unit whether the temperature (
T ) below a permissible limit temperature (T L ) lies, - c) introducing at least one measure to avoid the freezing of the exhaust gas turbine when the temperature (
T ) below the permissible limit temperature (T L ) lies.
Vorzugsweise liegt die Grenztemperatur (
Dadurch wird ein Festfrieren der Abgasturbine bei niedrigen Temperaturen vermieden. Somit werden Frostschäden an der Abgasturbine vermieden und dadurch die Lebensdauer der Abgasturbine erhöht. Weiterhin kann das Brennstoffzellensystem bei einem Neustart schneller wieder hochgefahren werden, weil die Abgasturbine nicht erst enteist werden muss.As a result, a freezing of the exhaust gas turbine at low temperatures is avoided. Thus, frost damage to the exhaust turbine can be avoided and thereby increases the life of the exhaust gas turbine. Furthermore, the fuel cell system can be restarted faster when restarting, because the exhaust gas turbine does not have to be de-iced first.
In einer vorteilhaften Weiterbildung des Verfahrens wird das Steuergerät ausgeschaltet und nach einer Zeitspanne (Δt) wieder eingeschaltet, wenn die Temperatur (
Vorzugsweise wird die Temperatur (
Insbesondere beim Trockenblasen wird bevorzugt auch die Abgasleitung in die Maßnahme einbezogen, so dass von dort keine weitere Feuchtigkeit in die Abgasturbine gelangen kann.In particular, during dry blowing, the exhaust pipe is preferably also included in the measure, so that no further moisture can get into the exhaust gas turbine from there.
Die Ermittlung der Temperatur (
In einer vorteilhaften Ausführung des Verfahrens wird vor dem Schritt a) eine GPS-Position des Brennstoffzellensystems an eine Cloud-Funktion übertragen. Der Schritt a) wird danach mittels der Cloud-Funktion durchgeführt. Die Cloud-Funktion kann dazu beispielsweise auf einen Wetterdienst zugreifen, der für die Position des Fahrzeugs die Temperatur (
In einer alternativen vorteilhaften Ausführung ist das Brennstoffzellensystem in einem Fahrzeug angeordnet und der Schritt a) wird mittels eines Temperatursensors des Fahrzeugs durchgeführt. Vorzugsweise ist der Temperatursensor ohnehin in dem Fahrzeug angeordnet, beispielsweise zur Messung der Umgebungstemperatur. Somit kann auf die aufwändigere Temperaturmessung per GPS verzichtet werden.In an alternative advantageous embodiment, the fuel cell system is arranged in a vehicle and the step a) is performed by means of a temperature sensor of the vehicle. The temperature sensor is preferably arranged in the vehicle anyway, for example for measuring the ambient temperature. Thus, the more expensive temperature measurement via GPS can be dispensed with.
Das Brennstoffzellensystem kann in allen Ausführungen vorzugsweise dazu eingerichtet sein, eine Antriebsvorrichtung eines Kraftfahrzeugs anzutreiben.The fuel cell system may in all embodiments preferably be adapted to drive a drive device of a motor vehicle.
Figurenlistelist of figures
Weitere optionale Einzelheiten und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie Verfahren, welche in den Figuren schematisch dargestellt sind.Further optional details and features of the invention will become apparent from the following description of preferred embodiments and methods which are shown schematically in the figures.
Es zeigen:
-
1 schematisch ein Brennstoffzellensystem mit einer Turbomaschine aus dem Stand der Technik, -
2 schematisch ein Ablaufdiagramm eines erfindungsgemäßen Verfahrens zur Vermeidung des Festfrierens der Abgasturbine, -
3 schematisch ein Ablaufdiagramm eines weiteren Verfahrens zur Vermeidung des Festfrierens der Abgasturbine.
-
1 1 schematically shows a fuel cell system with a turbomachine from the prior art, -
2 1 is a schematic diagram of a method according to the invention for preventing the freezing of the exhaust gas turbine, -
3 schematically a flowchart of another method for preventing the freezing of the exhaust gas turbine.
Ausführliche Beschreibung der ErfindungDetailed description of the invention
Die Brennstoffzelle
Der Verdichter
Die Abgasturbine
Die im Folgenden beschriebenen erfindungsgemäßen Verfahren verhindern ein Festfrieren der Abgasturbine
- • Verkürzung der Startzeiten des Brennstoffzellensystems
1 . - • Weniger Energiebedarf in der Kälte.
- • Vereinfachung des Brennstoffzellensystems
1 , da kein elektrischer Heizer für dieAbgasturbine 13 benötigt wird. - • Verhinderung von unnötigen Trockenblasen der
Abgasturbine 13 , beispielsweise bei warmer Umgebung.
- • Shortening the start times of the fuel cell system
1 , - • Less energy needed in the cold.
- • Simplification of the fuel cell system
1 , as no electric heater for theexhaust gas turbine 13 is needed. - • Prevention of unnecessary dry bubbles of the
exhaust gas turbine 13 For example, in a warm environment.
Fig.2 zeigt ein schematisches Ablaufdiagramm eines erfindungsgemäßen Verfahrens zur Vermeidung des Festfrierens der Abgasturbine
Im nächsten Verfahrensschritt
Als alternative Maßnahme
Ein wiederkehrender Trocknungs- oder Rüttelvorgang ist mit dem erfindungsgemäßen Verfahren auch möglich. Somit kann beispielsweise bei einer Temperatur
In alternativen Ausführungen kann der zweite Schritt
Dazu zeigt
Im nächsten Verfahrensschritt
Unterschreitet die Temperatur
Je nach Dauer der Abstellphase muss für die Ermittlung der Temperatur
Depending on the duration of the shutdown must be for the determination of the temperature
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102012224052 A1 [0002, 0016]DE 102012224052 A1 [0002, 0016]
Claims (7)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017217880.9A DE102017217880A1 (en) | 2017-10-09 | 2017-10-09 | Method for parking a fuel cell system |
CN201880065763.0A CN111201654A (en) | 2017-10-09 | 2018-09-26 | Method for shutting down a fuel cell system |
PCT/EP2018/076083 WO2019072559A1 (en) | 2017-10-09 | 2018-09-26 | Method for shutting down a fuel cell system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017217880.9A DE102017217880A1 (en) | 2017-10-09 | 2017-10-09 | Method for parking a fuel cell system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017217880A1 true DE102017217880A1 (en) | 2019-04-11 |
Family
ID=63914988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017217880.9A Pending DE102017217880A1 (en) | 2017-10-09 | 2017-10-09 | Method for parking a fuel cell system |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN111201654A (en) |
DE (1) | DE102017217880A1 (en) |
WO (1) | WO2019072559A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019128429A1 (en) * | 2019-10-22 | 2021-04-22 | Audi Ag | Method for switching off and restarting a fuel cell device, fuel cell device and motor vehicle with a fuel cell device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012224052A1 (en) | 2012-12-20 | 2014-06-26 | Robert Bosch Gmbh | Method for detecting surge in electrically driven compressor of vehicle fuel cell system, involves detecting compressor pumping based on change in torque and target current of drive device, and target rotational speed of compressor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314820B4 (en) * | 2003-04-01 | 2016-11-24 | General Motors Corp. (N.D.Ges.D. Staates Delaware) | Method for preventing the freezing of water in the anode circuit of a fuel cell system and fuel cell system |
JP2007192179A (en) * | 2006-01-20 | 2007-08-02 | Nissan Motor Co Ltd | Pump and fuel cell system |
DE102009036199A1 (en) * | 2009-08-05 | 2011-02-17 | Daimler Ag | Method for operating a fuel cell system in a vehicle |
DE102009043569A1 (en) * | 2009-09-30 | 2011-04-07 | Daimler Ag | Method for operating a fuel cell system |
-
2017
- 2017-10-09 DE DE102017217880.9A patent/DE102017217880A1/en active Pending
-
2018
- 2018-09-26 WO PCT/EP2018/076083 patent/WO2019072559A1/en active Application Filing
- 2018-09-26 CN CN201880065763.0A patent/CN111201654A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012224052A1 (en) | 2012-12-20 | 2014-06-26 | Robert Bosch Gmbh | Method for detecting surge in electrically driven compressor of vehicle fuel cell system, involves detecting compressor pumping based on change in torque and target current of drive device, and target rotational speed of compressor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019128429A1 (en) * | 2019-10-22 | 2021-04-22 | Audi Ag | Method for switching off and restarting a fuel cell device, fuel cell device and motor vehicle with a fuel cell device |
Also Published As
Publication number | Publication date |
---|---|
CN111201654A (en) | 2020-05-26 |
WO2019072559A1 (en) | 2019-04-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102013108197A1 (en) | Automatic cold storage protection for a fuel cell system | |
DE102016110932B4 (en) | Fuel cell system with flushing device | |
DE102005004388B4 (en) | Temperature-based vehicle wake-up strategy to prevent fuel cell freezing | |
DE102017102454B4 (en) | Flushing method for a fuel cell | |
DE102014222199A1 (en) | Fuel cell system and control method for it | |
DE102009043569A1 (en) | Method for operating a fuel cell system | |
DE112011100838T5 (en) | High pressure gas supply system and fuel cell system | |
DE102015105724A1 (en) | Freezing strategy for fuel cell cathode ancillary equipment | |
DE102019104874A1 (en) | Fuel cell system, moving object with a fuel cell system and method for deriving the wind speed in a fuel cell system | |
DE102017217880A1 (en) | Method for parking a fuel cell system | |
DE102018126452A1 (en) | Fuel cell system and control method for a turbine | |
DE102011122306A1 (en) | Fuel cell system i.e. proton exchange membrane fuel cell system, for vehicle, has bypass valve arranged in exhaust pipe after fuel cell for bypassing components, where valve acts immediately up on or integrated in cathode chamber | |
DE102008043405B4 (en) | Procedure for checking the functionality of a pump | |
DE102018113318A1 (en) | Test procedure for fuel cell stacks | |
DE102011084352B4 (en) | Method and control unit for operating a line circuit for using waste heat from an internal combustion engine | |
DE102014016961A1 (en) | Method for producing an oxygen-depleted gas | |
DE102014215855A1 (en) | Method for operating a fuel cell device, fuel cell device and motor vehicle with fuel cell device | |
DE102017219600A1 (en) | Method and system for optimizing a shutdown process of a fuel cell system | |
WO2020177987A1 (en) | Method for avoiding ice pressure damage in water-filled components of a fuel cell system | |
DE102018210188A1 (en) | Coolant regeneration with photovoltaics | |
DE102014104380B3 (en) | A method of operating a blower to deliver hydrogen in a fuel cell system | |
WO2019034481A1 (en) | Method for stopping a fuel cell system | |
DE102018205886A1 (en) | The fuel cell system | |
DE102011109588A1 (en) | Method for turning-off fuel cell system in vehicle, involves operated movable components such as recirculation fan based on temperature measured by temperature sensor after preset time period from stop of fuel cell | |
DE102018205177A1 (en) | Method for taking into account frost start conditions in a restart of a fuel cell system and apparatus for carrying out the method |