EP4189759A1 - Brennstoffzellenfahrzeug und detektionssystem zum erkennen von wasserstoff in einem brennstoffzellenfahrzeug - Google Patents
Brennstoffzellenfahrzeug und detektionssystem zum erkennen von wasserstoff in einem brennstoffzellenfahrzeugInfo
- Publication number
- EP4189759A1 EP4189759A1 EP21745976.7A EP21745976A EP4189759A1 EP 4189759 A1 EP4189759 A1 EP 4189759A1 EP 21745976 A EP21745976 A EP 21745976A EP 4189759 A1 EP4189759 A1 EP 4189759A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel cell
- scavenging air
- hydrogen
- detection system
- hydrogen sensor
- 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.)
- Withdrawn
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 131
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 131
- 239000000446 fuel Substances 0.000 title claims abstract description 88
- 238000001514 detection method Methods 0.000 title claims abstract description 47
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 36
- 238000010926 purge Methods 0.000 claims abstract description 20
- 230000002000 scavenging effect Effects 0.000 claims description 101
- 150000002431 hydrogen Chemical class 0.000 claims description 94
- 239000012530 fluid Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract description 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 3
- 239000003570 air Substances 0.000 description 102
- 239000012080 ambient air Substances 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- H01M8/04298—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
- H01M8/0444—Concentration; Density
- H01M8/04447—Concentration; Density of anode reactants at the inlet or inside the fuel cell
-
- 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
- H01M8/0444—Concentration; Density
- H01M8/0447—Concentration; Density of cathode exhausts
-
- 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
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
- B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
-
- 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
- H01M8/04791—Concentration; Density
- H01M8/04805—Concentration; Density of fuel cell 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- 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
-
- 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
Definitions
- the present invention relates to a detection system for detecting hydrogen in a cavity of a fuel cell vehicle, having a fuel cell system with a fuel cell housing and a scavenging air line for scavenging the fuel cell housing and a hydrogen sensor outside the fuel cell housing, the scavenging air line having a scavenging air outlet for letting scavenging air out of the fuel cell housing.
- the invention also relates to a fuel cell vehicle with such a detection system.
- PEM fuel cell systems hydrogen is converted into electrical energy using oxygen while generating waste heat and water.
- a PEM fuel cell system generally has a plurality of stacked fuel cells, each with an anode that is each supplied with hydrogen, a cathode that is each supplied with air, and polymer electrolyte membranes that are each placed between an anode and a cathode.
- the electrical output voltage of the fuel cell system can be increased by stacking the fuel cells.
- Supply channels are located within such a stack, which supply the individual fuel cells with hydrogen and air or transport away depleted moist air and depleted anode waste gas from the fuel cell stack or the fuel cell system.
- a fuel cell stack has many meters of sealing points through which small quantities Hydrogen can leave the fuel cell stack in the form of leakage.
- the fuel cell stack is enclosed by a fuel cell housing for the defined removal of the escaping hydrogen.
- the fuel cell housing is supplied with scavenging air in a defined manner from at least one point.
- the scavenging air leaves the fuel cell housing again at at least one other point through a scavenging air line.
- the fuel cell housing is, so to speak, flushed with the flushing air.
- a hydrogen sensor is installed in or on the scavenging air line in fuel cell systems of the generic type.
- an additional hydrogen sensor must be installed in closed or semi-closed cavities, such as in an engine compartment of the fuel cell vehicle.
- both hydrogen sensors detect hydrogen or a hydrogen concentration and cause the fuel cell system to shut down when it is detected that a predefined limit value has been exceeded.
- hydrogen sensors are expensive and lead to a complex system structure in the fuel cell vehicle.
- the present invention proposes an inexpensive and simply constructed system for the reliable detection of undesired hydrogen in a fuel cell system and/or in a fuel cell vehicle.
- a detection system for detecting hydrogen in a cavity of a fuel cell vehicle is provided.
- the detection system has a fuel cell system with a fuel cell housing and a scavenging air line for scavenging the fuel cell housing, and a hydrogen sensor outside the fuel cell housing.
- the scavenging air line has a scavenging air outlet for discharging scavenging air from the fuel cell housing.
- the purge air outlet is designed to apply the purge air from the purge air line to the hydrogen sensor.
- the arrangement according to the invention of the scavenging air line or the scavenging air opening and one hydrogen sensor makes it possible to dispense with the otherwise customary hydrogen sensor within the scavenging air line and/or within the fuel cell housing.
- the costs can thus be reduced and the system structure of the fuel cell system can be simplified.
- the omission of the hydrogen sensor and the associated functional components also creates space for other functional components or allows a more compact design of the fuel cell system.
- the scavenging air outlet is preferably designed for the scavenging air from the scavenging air line to act directly on the hydrogen sensor. That is, the scavenging air outlet and/or the scavenging air line are designed and/or arranged in such a way that scavenging air that exits the scavenging air line through the scavenging air opening can reach the hydrogen sensor directly and/or at least without obstacles.
- the hydrogen sensor can be understood to mean a sensor unit with a sensor housing and a sensor surface in the sensor housing.
- a functional unit that is described here and is arranged on the hydrogen sensor therefore does not have to be arranged directly on the sensor surface, but can also be arranged on the sensor housing.
- the hydrogen sensor is configured and arranged to detect hydrogen and/or a hydrogen concentration in the purge air and in the cavity.
- the scavenging air outlet is configured for discharging the scavenging air from the fuel cell casing to the surroundings of the fuel cell casing.
- the scavenging air outlet can be understood to mean an end section of the scavenging air line or a functional component which is connected to the scavenging air line and connects the scavenging air line to the hydrogen sensor.
- the cavity can be closed or semi-closed.
- the cavity can be understood to mean an installation space, for example the engine installation space, in the fuel cell vehicle.
- the scavenging air line does not have to be designed in the form of an ideal channel, but can in principle have any geometry as long as it is suitable for directing the scavenging air out of the fuel cell housing in a targeted manner.
- the fuel cell system is not flushed by the flushing air line, but flushed using the flushing air line.
- the scavenging air line can have a scavenging air inlet section, through which scavenging air is conducted into the fuel cell housing, and a scavenging air outlet section, using which the scavenging air or treated scavenging air can be conducted out of the fuel cell housing again.
- the fuel cell system preferably includes a plurality of fuel cell stacks enclosed or substantially enclosed by the fuel cell housing.
- the hydrogen sensor can be configured in the form of a hydrogen microsensor with temperature, pressure and air humidity compensating signal evaluation.
- the scavenging air outlet in a detection system is directed towards the hydrogen sensor for direct application of the scavenging air from the scavenging air line to the hydrogen sensor.
- the hydrogen concentration in the scavenging air can be determined particularly precisely by directly aligning the scavenging air outlet and the scavenging air line with the hydrogen sensor. Mixing with other fluids can be prevented in a simple manner or at least reduced and/or adjusted to the desired amount.
- the purge air outlet can be aligned with the hydrogen sensor be understood that a normal vector of the scavenging air outlet is directed in the direction of the hydrogen sensor and/or onto the hydrogen sensor.
- a normal vector of the scavenging air outlet can be aligned orthogonally or at an obtuse angle to a normal vector of a sensor surface of the hydrogen sensor, the normal vector of the sensor surface extending in the gravitational direction or essentially in the gravitational direction when installed in the fuel cell vehicle.
- a detection system it is possible for a detection system to have a collecting means for collecting hydrogen, which is arranged on the hydrogen sensor for conducting the collected hydrogen to the hydrogen sensor. Fluid containing hydrogen, which otherwise would not be able to get to the hydrogen sensor, can also be routed to the hydrogen sensor through the collecting means, as a result of which the detection system can particularly effectively identify an undesired hydrogen leak.
- the collecting means can be designed in the shape of a funnel. Due to the funnel shape, ambient air and thus also any hydrogen can be collected in a simple, inexpensive and nevertheless effective manner and routed to the hydrogen sensor.
- the funnel-shaped collecting means tapers towards the hydrogen sensor.
- the funnel-shaped collecting means tapers counter to the direction of gravity when the detection system is installed in the fuel cell vehicle.
- the collection means is preferably designed and/or arranged coaxially and/or concentrically with the hydrogen sensor and/or with the scavenging air outlet.
- the scavenging air outlet is preferably arranged at least partially in line with the hydrogen sensor. This means that the scavenging air flowing out of the scavenging air line can hit the hydrogen sensor directly. In this way, particularly meaningful measurements of the hydrogen content in the purge air can be carried out.
- the scavenging air outlet is aimed directly or essentially directly at the hydrogen sensor.
- the fact that the scavenging air outlet is at least partially arranged in line with the hydrogen sensor can be understood to mean that an imaginary extension of the scavenging air line in the direction of a normal vector of the scavenging air outlet would at least partially impinge on the hydrogen sensor.
- a detection system may include a junction box connected to the purge air line and the hydrogen sensor for directing the purge air to the hydrogen sensor.
- the connection housing With the help of the connection housing, the scavenging air and thus also the hydrogen in the scavenging air can be routed directly to the hydrogen sensor without the scavenging air being diverted through obstacles, for example, and thus being undesirably mixed with other fluids.
- the hydrogen sensor does not have to be located directly at the purge air outlet and a meaningful measurement of the hydrogen content in the purge air can still be carried out.
- connection housing in a detection system is designed at least partially in the shape of a funnel.
- the funnel-shaped connection housing which preferably tapers towards the scavenging air outlet and correspondingly widens towards the hydrogen sensor, can act as a diffuser, through which the scavenging air flow from the scavenging air line is slowed down and can thus be detected more effectively at the hydrogen sensor.
- connection housing prefferably has at least one gas inlet opening for admitting hydrogen from the cavity into the connection housing. It can thus be ensured in a simple and effective manner that hydrogen from the area surrounding the fuel cell housing or hydrogen leaking from the fuel cell housing can continue to be determined by the hydrogen sensor.
- the connection housing preferably has a plurality of gas inlet openings or holes for admitting the hydrogen from the cavity or from Ambient air from around the fuel cell housing into the connection housing.
- the connection housing can be designed in the form of a half-shell, with the closed part of the connection housing connecting the scavenging air line and the hydrogen sensor to one another and the open part of the connection housing being the at least one gas inlet opening.
- the scavenging air line of a detection system has a nozzle and the connecting housing comprises an ejector adjacent to the nozzle with a mixing chamber for providing a fluid mixture of the scavenging air and the hydrogen from the cavity, and with a diffuser, the mixing chamber which has at least one gas inlet opening and the diffuser for supplying the fluid mixture to the hydrogen sensor is connected to the hydrogen sensor. Ambient air from the vicinity of the fuel cell housing or the leakage hydrogen contained therein can thus be sucked into the mixing chamber in an effective manner and from there passed on to or to the hydrogen sensor.
- a fuel cell vehicle is provided with a cavity and a detection system for detecting hydrogen in the cavity as described in detail above.
- the fuel cell vehicle according to the invention thus brings with it the same advantages as have been described in detail with reference to the detection system according to the invention.
- the fuel cell vehicle is preferably provided in the form of a road vehicle, in particular in the form of a car or a truck.
- FIG. 1 shows a detection system according to a first embodiment of the present invention
- FIG. 2 shows a detection system according to a second embodiment of the present invention
- FIG. 3 shows a detection system according to a third embodiment of the present invention.
- FIG. 4 shows a fuel cell vehicle with a detection system according to a preferred embodiment of the present invention.
- FIG. 1 shows a detection system 10a for detecting hydrogen 11 or a hydrogen content of a cavity fluid in a cavity 12 of a fuel cell vehicle 13 shown in FIG. 4 according to a first specific embodiment.
- the detection system 10a has a fuel cell system 15 with a fuel cell housing 16 and a scavenging air line 17 for scavenging the fuel cell housing 16 .
- the detection system 10a has a hydrogen sensor 14 outside the fuel cell housing 16 .
- the scavenging air line 17 has a scavenging air outlet 18 for discharging scavenging air 19 from the fuel cell housing 16 .
- the scavenging air outlet 18 is designed to apply the scavenging air from the scavenging air line 17 to the hydrogen sensor 14 .
- the scavenging air outlet 18 is directed towards the hydrogen sensor 14 so that the scavenging air from the scavenging air line 17 can be applied directly to the hydrogen sensor 14 .
- the scavenging air outlet 18 is arranged at a distance from the collection means 20 and from the hydrogen sensor 14 so that hydrogen 11 from the cavity 12 or fluid containing hydrogen outside the scavenging air line 17 can continue to reach the hydrogen sensor 14 without any problems.
- the detection system 10a has a collecting means 20 for collecting hydrogen or ambient air from the surroundings of the fuel cell housing 16, which contains any hydrogen.
- the collecting means 20 is arranged on the hydrogen sensor 14 for conducting the collected hydrogen or the ambient air to the hydrogen sensor 14 .
- the collecting means 20 is designed in the shape of a funnel, with the funnel shape tapering towards the hydrogen sensor 14 .
- the scavenging air outlet 18 is arranged in line with the hydrogen sensor 14 .
- An outlet opening (not shown) for letting out or discharging hydrogen 11 and/or flushing air 19 from the hydrogen sensor 14 is preferably configured on the hydrogen sensor 14 and/or on the collecting means 20 . In this way, a fluid build-up at the hydrogen sensor 14, which could lead to erroneous hydrogen detection, can be prevented.
- the detection system 10b shown has a connection housing 21, which is connected to the scavenging air line 17 and the hydrogen sensor 14 for conducting the scavenging air 19 to the hydrogen sensor 14 and, on the right in Fig. 2, an outlet opening for discharging the scavenging air 19 and the hydrogen 11 from the Connection housing 21 has.
- the connection housing 21 is designed in a funnel shape.
- the connecting housing 21 has gas inlet openings 22 for admitting hydrogen 11 or ambient air with the hydrogen contained therein from the cavity 12 into the connecting housing 21 .
- the connection housing 21 shown in FIG. 2 can in principle also be regarded as a component of the scavenging air line 17 .
- the scavenging air line 17 has a nozzle 23 .
- the connection housing 21 has a nozzle 23 adjacent ejector 24 with a mixing chamber 25 for providing a fluid mixture 27 from the purge air 19 and the hydrogen 11 from the cavity 12, and a diffuser 26 on.
- a gas inlet opening 22 is consequently configured in the mixing chamber 25 and the diffuser 26 is connected to the hydrogen sensor 14 for supplying the fluid mixture 27 to the hydrogen sensor 14 .
- the ejector 24 shown in FIG. 3 can also be regarded as a component of the scavenging air line 17 .
- the nozzle 23 can be considered part of the ejector 24 .
- FIG. 4 shows a fuel cell vehicle 13 with a cavity 12 in the form of an engine installation space and a detection system 10a for detecting hydrogen 11 in the cavity 12, as shown in FIG.
- the scavenging air line 17 does not have to extend beyond the fuel cell housing 16 but can also end flush with the fuel cell housing 16 .
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
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020209494.2A DE102020209494A1 (de) | 2020-07-28 | 2020-07-28 | Brennstoffzellenfahrzeug und Detektionssystem zum Erkennen von Wasserstoff in einem Brennstoffzellenfahrzeug |
PCT/EP2021/069805 WO2022023059A1 (de) | 2020-07-28 | 2021-07-15 | Brennstoffzellenfahrzeug und detektionssystem zum erkennen von wasserstoff in einem brennstoffzellenfahrzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4189759A1 true EP4189759A1 (de) | 2023-06-07 |
Family
ID=77051008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21745976.7A Withdrawn EP4189759A1 (de) | 2020-07-28 | 2021-07-15 | Brennstoffzellenfahrzeug und detektionssystem zum erkennen von wasserstoff in einem brennstoffzellenfahrzeug |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230268529A1 (de) |
EP (1) | EP4189759A1 (de) |
JP (1) | JP2023535191A (de) |
KR (1) | KR20230043184A (de) |
CN (1) | CN116133892A (de) |
DE (1) | DE102020209494A1 (de) |
WO (1) | WO2022023059A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10031238B4 (de) | 2000-06-27 | 2005-02-03 | Ballard Power Systems Ag | Brennstoffzellensystem und Verfahren zum Betreiben des Brennstoffzellensystems |
JP3939608B2 (ja) * | 2002-07-17 | 2007-07-04 | 本田技研工業株式会社 | 燃料電池システム |
DE102010054756B4 (de) * | 2010-12-16 | 2012-12-20 | Airbus Operations Gmbh | Brennstoffzellensystem und Verwendung eines Brennstoffzellensystems |
CN103268949B (zh) * | 2013-05-24 | 2015-04-15 | 新源动力股份有限公司 | 一种燃料电池消氢装置 |
DE102014203259A1 (de) | 2014-02-24 | 2015-08-27 | Bayerische Motoren Werke Aktiengesellschaft | Brennstoffzellensystem mit einem in einem Gehäuse angeordneten Brennstoffzellenstack sowie einer Maßnahme zur Gehäuse-Belüftung |
US20190109331A1 (en) | 2017-10-09 | 2019-04-11 | GM Global Technology Operations LLC | Fuel cell system with improved ventilation |
-
2020
- 2020-07-28 DE DE102020209494.2A patent/DE102020209494A1/de active Pending
-
2021
- 2021-07-15 CN CN202180059106.7A patent/CN116133892A/zh active Pending
- 2021-07-15 WO PCT/EP2021/069805 patent/WO2022023059A1/de active Application Filing
- 2021-07-15 US US18/006,782 patent/US20230268529A1/en active Pending
- 2021-07-15 KR KR1020237006654A patent/KR20230043184A/ko active Search and Examination
- 2021-07-15 JP JP2023504587A patent/JP2023535191A/ja active Pending
- 2021-07-15 EP EP21745976.7A patent/EP4189759A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2023535191A (ja) | 2023-08-16 |
CN116133892A (zh) | 2023-05-16 |
US20230268529A1 (en) | 2023-08-24 |
KR20230043184A (ko) | 2023-03-30 |
WO2022023059A1 (de) | 2022-02-03 |
DE102020209494A1 (de) | 2022-02-03 |
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