DE10215913C1 - Fuel cell system for automobile propulsion drive has defective fuel cell unit decoupled with blocking of medium flows through decoupled fuel cell unit - Google Patents
Fuel cell system for automobile propulsion drive has defective fuel cell unit decoupled with blocking of medium flows through decoupled fuel cell unitInfo
- Publication number
- DE10215913C1 DE10215913C1 DE10215913A DE10215913A DE10215913C1 DE 10215913 C1 DE10215913 C1 DE 10215913C1 DE 10215913 A DE10215913 A DE 10215913A DE 10215913 A DE10215913 A DE 10215913A DE 10215913 C1 DE10215913 C1 DE 10215913C1
- Authority
- DE
- Germany
- Prior art keywords
- fuel cell
- decoupled
- cell unit
- unit
- 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.)
- Expired - Fee Related
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Classifications
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- 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
- H01M8/04664—Failure or abnormal function
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to fuel cells
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- 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
- H01M8/04246—Short circuiting means for defective fuel cells
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- 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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04955—Shut-off or shut-down of fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
-
- 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
- H01M8/04231—Purging of the reactants
-
- 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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell reactants
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
Abstract
Description
Die Erfindung betrifft insbesondere ein Brennstoffzellensystem nach dem Oberbegriff des Anspruchs 1.The invention particularly relates to a fuel cell system according to the preamble of claim 1.
Aus der DE 30 43 692 C2 ist ein Brennstoffzellensystem be kannt, bei dem jede Brennstoffzelle bzw. Brennstoffbatterie eine eigene Gasversorgung aufweist, und zwar um einen ge räuscharmen Betrieb zu ermöglichen und um auf eine voluminöse Leistungselektronik verzichten zu können.From DE 30 43 692 C2 is a fuel cell system be knows where each fuel cell or fuel battery has its own gas supply, by a ge allow quiet operation and to get on a voluminous Power electronics can do without.
Aus der DE 197 46 616 C1 ist ein Brennstoffzellensystem be kannt, bei dem einzelne Zellen in einem Störfall überbrückt werden können, um einen Weiterbetrieb des Systems auch bei Be schädigung einer Einzelzelle zu erlauben.From DE 197 46 616 C1 is a fuel cell system be which bridges individual cells in a fault can be used to continue operation of the system even at Be damage to a single cell.
Der Erfindung liegt insbesondere die Aufgabe zugrunde, ein Brennstoffzellensystem mit einer vorteilhaften Notbetriebs funktion bereitzustellen. Sie wird gemäß der Erfindung durch die Merkmale des Anspruchs 1 gelöst. Weitere Ausgestaltungen ergeben sich aus den Unteransprüchen.The invention is in particular the object of a Fuel cell system with an advantageous emergency operation function. It is according to the invention by the features of claim 1 solved. Further embodiments emerge from the dependent claims.
Die Erfindung geht aus von einem Brennstoffzellensystem mit mehreren Brennstoffzelleneinheiten, insbesondere zum Antrieb eines Kraftfahrzeugs, bei dem zumindest eine Brennstoffzellen einheit durch wenigstens eine Auskoppeleinheit im Störfall auskoppelbar ist, wobei die Auskoppeleinheit wenigstens ein Absperrelement zur Unterbrechung zumindest eines Mediumstroms durch die auskoppelbare Brennstoffzelleneinheit aufweist.The invention is based on a fuel cell system a plurality of fuel cell units, in particular for driving a motor vehicle, in which at least one fuel cell unit by at least one decoupling unit in case of failure can be decoupled, wherein the decoupling at least one Shut-off element for interrupting at least one medium flow comprising by the decoupled fuel cell unit.
Es wird vorgeschlagen, daß das Absperrelement von einem Klap penventil gebildet ist, das zu einer von einem Aktuator ver anlassten Schließung und zur manuellen Öffnung vorgesehen ist. Defekte Brennstoffzelleneinheiten können sicher von intakten Brennstoffzelleneinheiten isoliert und das Brennstoffzellen system kann mit den restlichen, noch intakten Brennstoffzel leneinheiten mit reduzierter Leistung weiter betrieben werden, wodurch insbesondere bei Kraftfahrzeugen ein Notfahrbetrieb sichergestellt werden kann. Es wird eine partielle Abschaltung ermöglicht. Die Brennstoffzelleneinheit kann dabei von einer einzelnen Brennstoffzelle oder von mehreren Brennstoffzellen gebildet sein.It is proposed that the shut-off of a Klap penventil is formed, which ver to one of an actuator initial closure and manual opening is provided. Defective fuel cell units can certainly be left intact Fuel cell units isolated and the fuel cell system can work with the remaining, still intact fuel cell operating units with reduced power, whereby in particular motor vehicles emergency operation can be ensured. It will be a partial shutdown allows. The fuel cell unit can from a single fuel cell or of several fuel cells be formed.
Die Auskoppeleinheit kann mit verschiedenen, dem Fachmann als sinnvoll erscheinenden Bauteilen ausgestattet sein. Insbeson dere besitzt die Auskoppeleinheit jedoch wenigstens ein Schaltelement zur elektrischen Überbrückung der auskoppelbaren Brennstoffzelleneinheit und wenigstens ein Absperrelement zur Unterbrechung zumindest eines Mediumstroms durch die auskop pelbare Brennstoffzelleneinheit. Es kann eine ungewünschte Le ckage zumindest weitgehend vermieden und ein geschlossener Stromkreis sichergestellt werden.The decoupling unit can with different, the expert than be equipped appear reasonable components. Insbeson However, the decoupling unit has at least one Switching element for the electrical bridging of the decoupled Fuel cell unit and at least one shut-off for Interruption of at least one medium flow through the auskop removable fuel cell unit. It can be an unwanted Le ckage at least largely avoided and a closed Circuit ensured.
Das Schaltelement kann ebenfalls von verschiedenen, dem Fach mann als geeignet erscheinenden Bauteilen, insbesondere elekt rischen und elektronischen Umschaltelementen gebildet sein. Vorteilhaft wird das Schaltelement jedoch von einem Relais ge bildet, wodurch dieses als kostengünstiges und bewährtes Stan dardbauteil ausgeführt werden kann. Das Schaltelement kann auch von einem Halbleiterelement gebildet werden. The switching element can also be different, the tray man appear as suitable components, in particular elekt be formed and electronic switching elements. However, the switching element is advantageous ge of a relay forms, making this as inexpensive and proven Stan can be executed dardbauteil. The switching element can also be formed by a semiconductor element.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschla gen, daß der auskoppelbaren Brennstoffzelleneinheit zumindest zwei Absperrelemente zugeordnet sind. Dabei können in einem Mediumkanal oder in mehreren Mediumkanälen strömungstechnisch vor und nach der Brennstoffzelleneinheit ein Absperrelement vorgesehen sein und/oder es können in mehreren Mediumkanälen vor oder nach der Brennstoffzelleneinheit Absperrelemente vor gesehen sein. Es kann ein Durchmischen von Medien und ein Rückfluß eines Mediums oder mehrerer Medien in die defekte Brennstoffzelleneinheit sicher vermieden werden. Dabei können bei einem Störfall stets sämtliche Absperrelemente aktiviert werden oder es können abhängig von detektierten Störungen nur einzelne Absperrelemente gezielt aktiviert werden.In a further embodiment of the invention is vorla conditions that the decoupled fuel cell unit at least two shut-off elements are assigned. It can in one Medium channel or in several medium channels fluidically before and after the fuel cell unit a shut-off be provided and / or it can in several medium channels before or after the fuel cell unit shut-off before be seen. It can be a media mix and a Reflux of one or more media into the defective ones Fuel cell unit safely avoided. It can in the event of a malfunction, all shut-off elements are always activated or it may depend on detected interference only individual shut-off elements are activated specifically.
Das Absperrelement kann von verschiedenen Bauteilen gebildet sein, wie beispielsweise von einem Schieber, einem Kegelven til, einem Absperrhahn usw. Nach der Brennstoffzelleneinheit können insbesondere auch Rückschlagventile vorgesehen sein. Besonders vorteilhaft wird das Absperrelement jedoch von einem Klappenventil gebildet. Bei einem Klappenventil kann vorteil haft eine Druckdifferenz zur Betätigung desselben und zur Un terstützung der Dichtheit genutzt werden. Es kann besonders vorteilhaft ein kostengünstiger und platzsparender Aktuator eingesetzt und eine hohe Funktionssicherheit erzielt werden.The shut-off element can be formed by various components be, such as from a slider, a Kegelven til, a stopcock, etc. After the fuel cell unit In particular, non-return valves may be provided. However, the shut-off is particularly advantageous from a Flap valve formed. In a flap valve can advantage Adhesive a pressure difference to the operation of the same and Un Support the tightness can be used. It can be special advantageous a cost-effective and space-saving actuator used and high reliability can be achieved.
Ferner wird vorgeschlagen, daß die auskoppelbare Brennstoff zelleneinheit wenigstens ein Entlüftungselement aufweist. Ein unerwünschter Druck in der Brennstoffzelleneinheit kann ver mieden und insbesondere kann eine vorteilhafte Druckdifferenz für das Klappenventil erreicht werden.It is also proposed that the decoupled fuel Cell unit comprises at least one venting element. On undesirable pressure in the fuel cell unit can ver and in particular can avoid a favorable pressure difference be achieved for the flapper valve.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbe schreibung. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Beschreibung und die Ansprüche ent halten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages will be apparent from the following Zeichbebe scription. In the drawing, an embodiment of the Invention shown. The description and claims ent hold numerous features in combination. The specialist will expediently consider the features individually and to summarize meaningful further combinations.
Es zeigt: It shows:
Fig. 1 ein schematisch dargestelltes Brennstoffzellensystem, Fig. 1 shows a schematically illustrated fuel cell system,
Fig. 2 ein schematisch dargestelltes Klappenventil im geöffne ten Zustand, Fig. 2 shows a schematically illustrated flapper valve in geöffne th state,
Fig. 3 das Klappenventil aus Fig. 2 im geschlossenen Zustand und Fig. 3, the flap valve of Fig. 2 in the closed state and
Fig. 4 eine konstruktive Ausführung des Klappenventils aus Fig. 2 im zerlegten Zustand. Fig. 4 shows a structural design of the flap valve of Fig. 2 in the disassembled state.
Fig. 1 zeigt ein schematisch dargestelltes Brennstoffzellensy stem mit vier Brennstoffzelleneinheiten 10, 11, 12, 13 zum An trieb eines nicht näher dargestellten Kraftfahrzeugs. Jede der vier Brennstoffzelleneinheiten 10, 11, 12, 13 ist durch je weils eine Auskoppeleinheit 14, 15, 16, 17 von den restlichen Brennstoffzelleneinheiten 10, 11, 12, 13 im Störfall auskop pelbar. Fig. 1 shows a schematically illustrated Brennstoffzellensy system with four fuel cell units 10 , 11 , 12 , 13 for driving a non-illustrated motor vehicle. Each of the four fuel cell units 10 , 11 , 12 , 13 is by each case a decoupling unit 14 , 15 , 16 , 17 of the remaining fuel cell units 10 , 11 , 12 , 13 auskop pelbar in case of failure.
Jede der Auskoppeleinheiten 14, 15, 16, 17 besitzt ein von ei nem Relais gebildetes Schaltelement 18, 19, 20, 21 zur elek trischen Überbrückung der jeweils zugeordneten Brennstoffzel leneinheit 10, 11, 12, 13. Ferner besitzt jede der Auskoppel einheiten 14, 15, 16, 17 sechs Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa zur Unterbrechung eines Kühlmittelstroms MK, eines Wasserstoffstroms MH2 und eines Luftstroms ML durch die jeweils zugeordnete Brennstoffzelleneinheit 10, 11, 12, 13. Die Me dienströme MK, MH2, ML sind in Kanälen geführt, wobei die Ab sperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa in den Kanälen strö mungstechnisch jeweils vor und nach der jeweiligen Brennstoff zelleneinheit 10, 11, 12, 13 angeordnet sind. Bei einem Stör fall kann ein Durchmischen der Medien in der defekten Brenn stoffzelleneinheit 10, 11, 12, 13 und es kann ein Zurückströ men eines Mediums oder mehrere Medien in die Brennstoffzellen einheit 10, 11, 12, 13 sicher vermieden werden.Each of the coupling-out units 14 , 15 , 16 , 17 has a switching element formed by egg nem relay 18 , 19 , 20 , 21 for elec trical bridging of the respective assigned fuel cell leneinheit 10 , 11 , 12 , 13th Further, each of the decoupling units 14 , 15 , 16 , 17 six shut-off K Kz , K Ka ; K H2z , K H2a ; K Lz , K La for interrupting a coolant flow M K , a hydrogen flow M H2 and an air flow M L through the respective associated fuel cell unit 10 , 11 , 12 , 13th The Me dienströme M K , MH 2 , M L are guided in channels, the Ab blocking elements K Kz , K Ka ; K H2z , K H2a ; K Lz , K La flow in the channels each before and after the respective fuel cell unit 10 , 11 , 12 , 13 are arranged. In a sturgeon case, a mixing of the media in the defective fuel cell unit 10 , 11 , 12 , 13 and it can be a Rückströ men of a medium or more media in the fuel cell unit 10 , 11 , 12 , 13 safely avoided.
Die Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa werden von Klap penventilen gebildet (Fig. 2, 3 und 4). Die Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa besitzen jeweils in einem Gehäuse 29 eine um eine Achse 26 schwenkbare Klappe 27, die über einen elektromagnetischen Aktuator 28 in ihrer Öffnungsstellung ge halten wird (Fig. 2). Die Klappe 27 liegt in ihrer Öffnungs stellung vollständig außerhalb einer Hauptströmung des jewei ligen Mediumstroms M.The shut-off elements K Kz , K Ka ; K H2z , K H2a ; K Lz , K La are formed by folding pen valves ( Figures 2, 3 and 4). The shut-off elements K Kz , K Ka ; K H2z , K H2a ; K Lz , K La each have in a housing 29 a pivotable about an axis 26 flap 27 , which will hold ge via an electromagnetic actuator 28 in its open position ( Fig. 2). The flap 27 is in its open position completely outside a main flow of jewei time medium flow M.
Tritt ein Störfall in einer der Brennstoffzelleneinheiten 10, 11, 12, 13 auf, beispielsweise in der Brennstoffzelleneinheit 10, werden zuerst sämtliche, der Brennstoffzelleneinheit 10 zugeordnete Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa ge schlossen. In jedem Absperrelement KKz, KKa; KH2z, KH2a; KLz, KLa der Auskoppeleinheit 14 wird die Arretierung der Klappe 27 durch den Aktuator 28 gelöst, und die Klappe 27 wird durch den jeweiligen Mediumstrom M bzw. durch eine Druckdifferenz im je weiligen Absperrelement K bzw. KKz, KKa; KH2z, KH2a; KLz, KLa in ihre Schließstellung geschwenkt (Fig. 3). Die Klappe 27 kann dabei durch eine nicht näher dargestellte Ventilfeder in ihrer Bewegung unterstützt sein. In der Schließstellung wird die Klappe 27 durch den Mediumdruck in ihre Schließrichtung bela stet. Die Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa werden ausschließlich im Störfall betätigt und sind bei der Behebung des Störfalls manuell zu öffnen.If an accident occurs in one of the fuel cell units 10 , 11 , 12 , 13 , for example in the fuel cell unit 10 , first all shut-off elements K Kz , K Ka assigned to the fuel cell unit 10 become . K H2z , K H2a ; K Lz , K La ge closed. In each shut-off element K Kz , K Ka ; K H2z , K H2a ; Lz K, K La of the decoupling unit 14 is released the locking of the flap 27 by the actuator 28 and the flap 27 is determined by the respective current medium M, or by a pressure difference in each weiligen shutter K or K Kz, K Ka; K H2z , K H2a ; K Lz , K La is pivoted into its closed position ( FIG. 3). The flap 27 can be supported by a valve spring, not shown in their movement. In the closed position, the flap 27 is stet by the medium pressure in their closing direction. The shut-off elements K Kz , K Ka ; K H2z , K H2a ; K Lz , K La are only operated in the event of a fault and must be opened manually when the accident is rectified.
Sind alle Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa geschlos sen, wird die defekte Brennstoffzelleneinheit 10 durch das Schaltelement 18 elektrisch überbrückt, so daß das Brennstoff zellensystem mit den restlichen, noch intakten Brennstoffzel leneinheiten 11, 12, 13 mit reduzierter Leistung weiter be trieben werden kann.Are all shut-off K Kz , K Ka ; K H2z , K H2a ; K Lz , K La CLOSED Sen, the defective fuel cell unit 10 is electrically bypassed by the switching element 18 , so that the fuel cell system with the remaining, still intact Brennstoffzel leneinheiten 11 , 12 , 13 with reduced power can continue to be operated.
Um in einem Störfall einen ungewünschten Druck in der defekten Brennstoffzelleneinheit 10, 11, 12 oder 13 vermeiden zu kön nen und ein vorteilhaftes Druckgefälle, insbesondere für die zugeordneten Absperrelemente KKz, KKa; KH2z, KH2a; KLz, KLa, ein stellen zu können, besitzt jede Brennstoffzelleneinheit 10, 11, 12, 13 ein Entlüftungsventil 22, 23, 24, 25 (Fig. 1).In order to avoid an undesired pressure in the defective fuel cell unit 10 , 11 , 12 or 13 in an accident NEN and an advantageous pressure gradient, in particular for the associated shut-off K Kz , K Ka ; K H2z , K H2a ; K Lz , K La , each fuel cell unit 10 , 11 , 12 , 13 has a venting valve 22 , 23 , 24 , 25 ( FIG. 1).
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10215913A DE10215913C1 (en) | 2002-04-11 | 2002-04-11 | Fuel cell system for automobile propulsion drive has defective fuel cell unit decoupled with blocking of medium flows through decoupled fuel cell unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10215913A DE10215913C1 (en) | 2002-04-11 | 2002-04-11 | Fuel cell system for automobile propulsion drive has defective fuel cell unit decoupled with blocking of medium flows through decoupled fuel cell unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10215913C1 true DE10215913C1 (en) | 2003-10-02 |
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| DE10215913A Expired - Fee Related DE10215913C1 (en) | 2002-04-11 | 2002-04-11 | Fuel cell system for automobile propulsion drive has defective fuel cell unit decoupled with blocking of medium flows through decoupled fuel cell unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010005415A1 (en) * | 2008-07-09 | 2010-01-14 | Utc Power Corporation | Fuel cell stack conditioned to operate safely with failed cells |
| WO2010112672A1 (en) * | 2009-04-02 | 2010-10-07 | Wärtsilä Finland Oy | Method and arrangement for controlling fuel cell system efficiency |
| WO2013152835A1 (en) * | 2012-04-12 | 2013-10-17 | Daimler Ag | Device for supplying a fuel cell with fuel |
| EP3208876A1 (en) * | 2016-02-18 | 2017-08-23 | Hyundai Motor Company | Air shut-off valve apparatus for fuel cell system |
| US10658687B2 (en) | 2016-12-14 | 2020-05-19 | Hyundai Motor Company | Air shut-off valve apparatus for fuel cell system and method of controlling same |
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2002
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| DE3043692C2 (en) * | 1980-11-19 | 1985-07-11 | Ingenieurkontor Luebeck Prof. Gabler Nachf. Gmbh, 2400 Luebeck | DC electrical power source |
| JPH02250272A (en) * | 1989-03-24 | 1990-10-08 | Fuji Electric Co Ltd | Partial cell short circuit structure of fuel cell stack |
| DE19746616C1 (en) * | 1997-10-22 | 1999-01-21 | Forschungszentrum Juelich Gmbh | Damaged cell bridging method in fuel cell stack |
| DE19907369A1 (en) * | 1999-02-20 | 2000-08-24 | Forschungszentrum Juelich Gmbh | Fuel cell current source for portable electrical device e.g. torch or computer, has diode across each fuel cell for protection against individual fuel cell failure |
| DE19943248A1 (en) * | 1999-09-10 | 2001-03-15 | Xcellsis Gmbh | Method for operating a fuel cell system and arrangement for carrying out the method |
| DE10010985A1 (en) * | 2000-03-07 | 2001-09-20 | Daimler Chrysler Ag | Fuel cell system operating method has individual fuel cells or fuel cell stacks switched into and out of operation for matching required power output |
| DE10201893A1 (en) * | 2001-01-18 | 2002-09-19 | Toyota Motor Co Ltd | On-board fuel cell system and method for controlling the same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010005415A1 (en) * | 2008-07-09 | 2010-01-14 | Utc Power Corporation | Fuel cell stack conditioned to operate safely with failed cells |
| US9065126B2 (en) | 2008-07-09 | 2015-06-23 | Audi Ag | Fuel cell stack conditioned to operate safely with failed cells |
| WO2010112672A1 (en) * | 2009-04-02 | 2010-10-07 | Wärtsilä Finland Oy | Method and arrangement for controlling fuel cell system efficiency |
| WO2013152835A1 (en) * | 2012-04-12 | 2013-10-17 | Daimler Ag | Device for supplying a fuel cell with fuel |
| EP3208876A1 (en) * | 2016-02-18 | 2017-08-23 | Hyundai Motor Company | Air shut-off valve apparatus for fuel cell system |
| US9911991B2 (en) | 2016-02-18 | 2018-03-06 | Hyundai Motor Company | Air shut-off valve apparatus for fuel cell system |
| US10658687B2 (en) | 2016-12-14 | 2020-05-19 | Hyundai Motor Company | Air shut-off valve apparatus for fuel cell system and method of controlling same |
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