WO2022233567A1 - System for supplying energy to a fuel cell-operated motor vehicle - Google Patents

System for supplying energy to a fuel cell-operated motor vehicle Download PDF

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Publication number
WO2022233567A1
WO2022233567A1 PCT/EP2022/060255 EP2022060255W WO2022233567A1 WO 2022233567 A1 WO2022233567 A1 WO 2022233567A1 EP 2022060255 W EP2022060255 W EP 2022060255W WO 2022233567 A1 WO2022233567 A1 WO 2022233567A1
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WO
WIPO (PCT)
Prior art keywords
fuel cell
motor vehicle
hydrogen
hydrogen tank
cell motor
Prior art date
Application number
PCT/EP2022/060255
Other languages
German (de)
French (fr)
Inventor
Bernd Stuke
Olaf Ohlhafer
Original Assignee
Robert Bosch Gmbh
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Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2022233567A1 publication Critical patent/WO2022233567A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/58—Auxiliary devices
    • B60D1/62—Auxiliary devices involving supply lines, electric circuits, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03309—Tanks specially adapted for particular fuels
    • B60K2015/03315—Tanks specially adapted for particular fuels for hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0161—Details of mounting arrangements for transport with wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0178—Cars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells

Definitions

  • the present invention relates to a system for supplying energy to a fuel cell motor vehicle.
  • the current network of hydrogen filling stations in Germany only comprises around 100 stations. This means that the individual gas stations are sometimes very far apart.
  • the vehicle can remain standing on the open road. Refueling away from the stationary hydrogen filling stations is not possible today, so the vehicle has to be towed to the next hydrogen filling station.
  • DE 10 2019 211 494 A1 discloses a system for supplying a first vehicle with hydrogen from a second vehicle.
  • a traffic control system transmits the duration of the stop to a communication unit in the vehicles.
  • the vehicles also communicate with each other via the communication unit.
  • a need for energy is transmitted from the first vehicle to the second vehicle.
  • the hydrogen of the second vehicle via a connection system to the first vehicle.
  • the object on which the invention is based is to provide a system with which the range of a fuel cell motor vehicle can be increased easily and quickly.
  • the invention provides a system for supplying a fuel cell motor vehicle with energy, comprising a separate additional hydrogen tank which can be fixed to the fuel cell motor vehicle via a fastening device, and a hydrogen connection is provided for connecting the additional hydrogen tank to the fuel cell motor vehicle .
  • the fuel cell motor vehicle has a fuel cell which uses the electrical energy obtained from hydrogen for an electric motor to drive the fuel cell motor vehicle.
  • a separate additional hydrogen tank is understood to mean a hydrogen tank which is independent of the fuel cell motor vehicle and can be used in addition to an on-board hydrogen tank.
  • the fastening device includes any device with which the additional hydrogen tank can be detached from the fuel cell motor vehicle and attached to it in a non-destructive manner. This ensures that the additional hydrogen tank can be easily and quickly detached and connected to the fuel cell motor vehicle. This makes it possible for such an additional hydrogen tank to be brought via a service or picked up at a collection point and used directly. A distance to the nearest hydrogen filling station can thus be bridged. In addition, such an additional hydrogen tank can be taken along from the outset in order to quickly and easily increase the range of the fuel cell motor vehicle.
  • the fastening device is formed by a trailer hitch of the fuel cell motor vehicle.
  • a trailer hitch as a fastening device for the additional hydrogen tank has the advantage that many vehicles are already equipped with such a trailer hitch. It is therefore not necessary to construct and provide a separate fastening device on the vehicle. As a result, such a system can be provided economically.
  • the additional hydrogen tank is arranged in a separate motor vehicle trailer, via which it can be fixed to the fuel cell motor vehicle.
  • the motor vehicle trailer is preferably connected to the fuel cell motor vehicle via the trailer hitch. However, it is also possible to connect this to the fuel cell motor vehicle with a separate attachment.
  • a significantly larger quantity of hydrogen can be accommodated in the motor vehicle trailer than in the on-board hydrogen tank. This significantly increases the range of the fuel cell motor vehicle.
  • handling of the additional hydrogen tank is made easier by the mobile motor vehicle trailer.
  • the additional hydrogen tank can be accommodated in existing trailer systems, for example, so that a separate trailer system does not have to be designed. As a result, such a motor vehicle trailer can be provided economically with an additional hydrogen tank.
  • the motor vehicle trailer preferably has control devices with which the pressure to the hydrogen connection can be controlled to the required pressure of the fuel cell.
  • a control device With such a control device, an additional control device in the fuel cell motor vehicle can be dispensed with.
  • a retrofit of existing fuel cell motor vehicles is thereby simplified.
  • due to the lower pressure there is no need for high-pressure lines, especially in the area of the hydrogen connection. This increases the security of such a system.
  • the fuel cell motor vehicle has a detection device with which a connected additional hydrogen tank can be detected, so that the hydrogen from the additional hydrogen tank can be fed to the fuel cell.
  • a detection device can include, for example, a sensor on the hydrogen connection or a pressure sensor in the hydrogen path.
  • the detection device also has devices with which a faulty connected hydrogen connection can be detected.
  • a device can include a pressure sensor in the hydrogen path, for example.
  • a drop in pressure due to the incorrectly connected hydrogen connection can be detected in the hydrogen path.
  • Such a facility also increases the security of such a system.
  • FIG. 1 a side view of an embodiment of the invention is shown.
  • the figure shows a fuel cell motor vehicle 14 which has a trailer hitch 18 .
  • a separate motor vehicle trailer 22 Connected to the trailer hitch 18 is a separate motor vehicle trailer 22, which can be coupled or uncoupled as needed.
  • an additional hydrogen tank 26 is arranged, via which the fuel cell motor vehicle 14, in addition to the on-board hydrogen tank, can be supplied with hydrogen in order to get to the next hydrogen filling station, or to increase the range of the fuel cell motor vehicle 14 .
  • a hydrogen connection 30 is provided in order to connect the additional hydrogen tank 26 arranged in the motor vehicle trailer 22 for hydrogen supply to the fuel cell motor vehicle 14 .
  • a regulating device 34 is arranged in the motor vehicle trailer 22 which reduces the pressure of the hydrogen coming from the additional hydrogen tank 26 . This eliminates the need for high-pressure lines.
  • a sensor is arranged in the hydrogen connection 30, with which a connected additional
  • Hydrogen tank 26 is detectable. This opens a hydrogen path from the hydrogen connection 30 to the fuel cell, so that the fuel cell can be supplied with hydrogen from the additional hydrogen tank 26 .
  • a pressure sensor (not shown here) can be arranged in the hydrogen path to the fuel cell, with which a pressure loss due to an incorrectly connected hydrogen connection 30 at the hydrogen connection 30 can be detected. As a result, the security of such a system can be increased.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel Cell (AREA)

Abstract

The invention relates to a system for supplying energy to a fuel cell-operated motor vehicle (14), comprising a separate additional hydrogen tank (26) which can be fastened to the fuel cell-operated motor vehicle (14) via a fastening device (18), a hydrogen connection (30) being provided to connect the additional hydrogen tank (26) to the fuel cell-operated motor vehicle (14).

Description

Beschreibung description
Titel: Title:
System zum Versorgen eines Brennstoffzellen- Kraftfahrzeugs mit Energie System for supplying energy to a fuel cell motor vehicle
Die vorliegende Erfindung betrifft ein System zum Versorgen eines Brennstoffzellen- Kraftfahrzeugs mit Energie. The present invention relates to a system for supplying energy to a fuel cell motor vehicle.
Stand der Technik State of the art
Aus dem Stand der Technik sind Personenkraftwagen mit Brennstoffzellenantrieb bekannt. Eine Wasserstoffspeicherung im jeweiligen Personenkraftwagen erfolgt in der Regel in einem Drucktank, welcher an einer Wasserstoff-Zapfsäule mit Wasserstoff befüllbar ist. Passenger vehicles with fuel cell drives are known from the prior art. Hydrogen is usually stored in the respective passenger vehicle in a pressure tank, which can be filled with hydrogen at a hydrogen pump.
Das heutige Netz der Wasserstoff-Tankstellen in Deutschland umfasst lediglich rund 100 Stationen. Damit liegen die einzelnen Tankstellen zum Teil sehr weit voneinander entfernt. Wird andererseits bei einem Wasserstofffahrzeug nicht rechtzeitig Wasserstoff nachgetankt, so kann das Fahrzeug auf freier Strecke stehen bleiben. Ein Nachtanken abseits der stationären Wasserstofftankstellen ist heute nicht möglich, so dass das Fahrzeug bis zur nächsten Wasserstofftankstelle abgeschleppt werden muss. The current network of hydrogen filling stations in Germany only comprises around 100 stations. This means that the individual gas stations are sometimes very far apart. On the other hand, if hydrogen is not refueled in a hydrogen vehicle in good time, the vehicle can remain standing on the open road. Refueling away from the stationary hydrogen filling stations is not possible today, so the vehicle has to be towed to the next hydrogen filling station.
Die DE 10 2019 211 494 Al offenbart ein System zur Versorgung eines ersten Fahrzeuges mit Wasserstoff eines zweiten Fahrzeuges. Dazu wird während eines erzwungenen Stopps durch einer Verkehrsregelanlage die Dauer des Stopps an eine Kommunikationseinheit der Fahrzeuge übermittelt. Über die Kommunikationseinheit kommunizieren die Fahrzeug zusätzlich untereinander. Dabei wird von dem ersten Fahrzeug ein Bedarf an Energie an das zweite Fahrzeug übermittelt. Nach einem Abklären der Kosten wird der Wasserstoff des zweiten Fahrzeuges über ein Verbindungs-System an das erste Fahrzeug übertragen. DE 10 2019 211 494 A1 discloses a system for supplying a first vehicle with hydrogen from a second vehicle. For this purpose, during a forced stop, a traffic control system transmits the duration of the stop to a communication unit in the vehicles. The vehicles also communicate with each other via the communication unit. In this case, a need for energy is transmitted from the first vehicle to the second vehicle. After clarifying the costs, the hydrogen of the second vehicle via a connection system to the first vehicle.
Die der Erfindung zugrunde liegende Aufgabe liegt darin, ein System bereitzustellen, mit welchem die Reichweite eine Brennstoffzellen- Kraftfahrzeugs einfach und schnell vergrößert wird. The object on which the invention is based is to provide a system with which the range of a fuel cell motor vehicle can be increased easily and quickly.
Die Aufgabe wird gelöst durch den Gegenstand des Patentanspruchs 1. Bevorzugte Ausführungsformen sind den abhängigen Ansprüchen zu entnehmen. The object is solved by the subject matter of patent claim 1. Preferred embodiments can be found in the dependent claims.
Offenbarung der Erfindung Disclosure of Invention
Die Erfindung gibt ein System zum Versorgen eines Brennstoffzellen- Kraftfahrzeugs mit Energie, umfassend einen separaten Zusatz-Wasserstofftank, welcher über eine Befestigungsvorrichtung an dem Brennstoffzellen- Kraftfahrzeug fixierbar ist, und wobei zum Verbinden des Zusatz- Wasserstofftanks mit dem Brennstoffzellen- Kraftfahrzeug ein Wasserstoffanschluss vorgesehen ist. The invention provides a system for supplying a fuel cell motor vehicle with energy, comprising a separate additional hydrogen tank which can be fixed to the fuel cell motor vehicle via a fastening device, and a hydrogen connection is provided for connecting the additional hydrogen tank to the fuel cell motor vehicle .
Das Brennstoffzellen- Kraftfahrzeug weist dabei eine Brennstoffzelle auf, welche die aus Wasserstoff gewonnene elektrische Energie für einen Elektromotor zum Antrieb des Brennstoffzellen- Kraftfahrzeugs verwendet. Unter einem separaten Zusatz-Wasserstofftank wird ein Wasserstofftank verstanden, welcher unabhängig von dem Brennstoffzellen- Kraftfahrzeug ist und zusätzlich zu einem bordeigenen Wasserstofftank verwendet werden kann. The fuel cell motor vehicle has a fuel cell which uses the electrical energy obtained from hydrogen for an electric motor to drive the fuel cell motor vehicle. A separate additional hydrogen tank is understood to mean a hydrogen tank which is independent of the fuel cell motor vehicle and can be used in addition to an on-board hydrogen tank.
Die Befestigungsvorrichtung umfasst dabei jede Vorrichtung, mit welcher der Zusatz- Wasserstofftank zerstörungsfrei vom Brennstoffzellen- Kraftfahrzeug gelöst und mit diesem befestigt werden kann. Dadurch wird ein einfaches sowie schnelles Lösen und Verbinden des Zusatz- Wasserstofftanks mit dem Brennstoffzellen- Kraftfahrzeugs gewährleistet. Dadurch wird ermöglicht, dass ein solcher Zusatz- Wasserstofftank über einen Service gebracht oder an einer Abholstelle abgeholt werden kann und direkt verwendbar ist. Eine Entfernung zu einer nächsten Wasserstofftankstelle kann dadurch überbrückt werden. Zusätzlich kann ein solcher Zusatz-Wasserstofftank von vornherein mitgenommen werden, um die Reichweite des Brennstoffzellen- Kraftfahrzeugs schnell und einfach zu erhöhen. The fastening device includes any device with which the additional hydrogen tank can be detached from the fuel cell motor vehicle and attached to it in a non-destructive manner. This ensures that the additional hydrogen tank can be easily and quickly detached and connected to the fuel cell motor vehicle. This makes it possible for such an additional hydrogen tank to be brought via a service or picked up at a collection point and used directly. A distance to the nearest hydrogen filling station can thus be bridged. In addition, such an additional hydrogen tank can be taken along from the outset in order to quickly and easily increase the range of the fuel cell motor vehicle.
In einer bevorzugten Ausführung der Erfindung ist die Befestigungsvorrichtung durch eine Anhängerkupplung des Brennstoffzellen- Kraftfahrzeugs gebildet. Eine Verwendung der Anhängerkupplung als Befestigungsvorrichtung für den Zusatz- Wasserstofftank hat den Vorteil, dass bereits viele Fahrzeuge mit einer solchen Anhängerkupplung ausgerüstet sind. Es muss somit keine separate Befestigungsvorrichtung konstruiert und an dem Fahrzeug vorgesehen werden. Dadurch kann ein solches System wirtschaftlich bereitgestellt werden. In a preferred embodiment of the invention, the fastening device is formed by a trailer hitch of the fuel cell motor vehicle. Using the trailer hitch as a fastening device for the additional hydrogen tank has the advantage that many vehicles are already equipped with such a trailer hitch. It is therefore not necessary to construct and provide a separate fastening device on the vehicle. As a result, such a system can be provided economically.
In einer weiteren bevorzugten Ausführung der Erfindung ist der Zusatz- Wasserstofftank in einem separaten Kraftfahrzeuganhänger angeordnet, über welchen dieser an dem Brennstoffzellen- Kraftfahrzeug fixierbar ist. Vorzugsweise wird der Kraftfahrzeuganhänger über die Anhängerkupplung mit dem Brennstoffzellen- Kraftfahrzeug verbunden. Es ist jedoch auch möglich diesen mit einer separaten Befestigung mit dem Brennstoffzellen- Kraftfahrzeug zu verbinden. In a further preferred embodiment of the invention, the additional hydrogen tank is arranged in a separate motor vehicle trailer, via which it can be fixed to the fuel cell motor vehicle. The motor vehicle trailer is preferably connected to the fuel cell motor vehicle via the trailer hitch. However, it is also possible to connect this to the fuel cell motor vehicle with a separate attachment.
In dem Kraftfahrzeuganhänger kann zudem eine deutlich größerer Wasserstoffmenge untergebracht werden, als im bordeigenen Wasserstofftank. Die Reichweite des Brennstoffzellen- Kraftfahrzeugs wird dadurch erheblich erhöht. Zudem wird ein Handling des Zusatz-Wasserstofftanks durch den fahrbaren Kraftfahrzeuganhänger erleichtert. Der Zusatz-Wasserstofftank kann dabei beispielsweise in bestehende Anhängersysteme untergebracht werden, so dass ein eigenes Anhängersystem nicht entworfen werden muss. Dadurch kann ein solcher Kraftfahrzeuganhänger mit einem Zusatz-Wasserstofftank wirtschaftlich bereitgestellt werden. In addition, a significantly larger quantity of hydrogen can be accommodated in the motor vehicle trailer than in the on-board hydrogen tank. This significantly increases the range of the fuel cell motor vehicle. In addition, handling of the additional hydrogen tank is made easier by the mobile motor vehicle trailer. The additional hydrogen tank can be accommodated in existing trailer systems, for example, so that a separate trailer system does not have to be designed. As a result, such a motor vehicle trailer can be provided economically with an additional hydrogen tank.
Vorzugsweise weist der Kraftfahrzeuganhänger Regeleinrichtungen auf, mit welchen der Druck zum Wasserstoffanschluss auf den erforderlichen Druck der Brennstoffzelle regelbar ist. Mit einer solchen Regeleinrichtung kann auf eine zusätzliche Regeleinrichtung im Brennstoffzellen- Kraftfahrzeug verzichtet werden. Ein nachrüsten bestehender Brennstoffzellen- Kraftfahrzeuge wird dadurch vereinfacht. Zudem kann durch den geringeren Druck auf Hochdruckleitungen, insbesondere im Bereich des Wasserstoffanschlusses verzichtet werden. Dadurch wird die Sicherheit eines solchen Systems erhöht. The motor vehicle trailer preferably has control devices with which the pressure to the hydrogen connection can be controlled to the required pressure of the fuel cell. With such a control device, an additional control device in the fuel cell motor vehicle can be dispensed with. A retrofit of existing fuel cell motor vehicles is thereby simplified. In addition, due to the lower pressure, there is no need for high-pressure lines, especially in the area of the hydrogen connection. This increases the security of such a system.
In einer vorteilhaften Weiterbildung weist das Brennstoffzellen- Kraftfahrzeug eine Erkennungseinrichtung auf, mit welcher ein angeschlossener Zusatz- Wasserstofftank detektierbar ist, so dass der Wasserstoff des Zusatz- Wasserstofftanks der Brennstoffzelle zuleitbar ist. Eine solche Erkennungseinrichtung kann beispielsweise einen Sensor am Wasserstoffanschluss oder einen Drucksensor im Wasserstoffpfad umfassen. Dadurch wird eine Verbindung zwischen Wasserstoffanschi uss und Brennstoffzelle erst freigeschaltet, wenn ein Zusatz-Wasserstofftank angeschlossen ist. Dadurch können Fehler im Brennstoffzellensystem vorgebeugt werden, so dass die Sicherheit eines solchen System erhöht wird. In an advantageous development, the fuel cell motor vehicle has a detection device with which a connected additional hydrogen tank can be detected, so that the hydrogen from the additional hydrogen tank can be fed to the fuel cell. Such a detection device can include, for example, a sensor on the hydrogen connection or a pressure sensor in the hydrogen path. As a result, a connection between the hydrogen connection and the fuel cell is only activated when an additional hydrogen tank is connected. As a result, errors in the fuel cell system can be prevented, so that the safety of such a system is increased.
Vorteilhafterweise weist die Erkennungseinrichtung zusätzlich Einrichtungen auf, mit welchen ein fehlerhaft angeschlossener Wasserstoffanschluss detektierbar ist. Eine solche Einrichtung kann beispielsweise einen Drucksensor im Wasserstoffpfad umfassen. Dadurch kann ein Druckabfall, aufgrund des fehlerhaft angeschlossenen Wasserstoffanschlusses, im Wasserstoffpfad detektiert werden. Eine solche Einrichtung erhöht zusätzlich die Sicherheit eines solchen Systems. Advantageously, the detection device also has devices with which a faulty connected hydrogen connection can be detected. Such a device can include a pressure sensor in the hydrogen path, for example. As a result, a drop in pressure due to the incorrectly connected hydrogen connection can be detected in the hydrogen path. Such a facility also increases the security of such a system.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigt: Embodiments of the invention are shown in the drawing and explained in more detail in the following description. It shows:
Figur Seitenansicht eines Ausführungsbeispiels der Erfindung. Figure Side view of an embodiment of the invention.
In der Figur ist eine Seitenansicht eines Ausführungsbeispiels der Erfindung gezeigt. Die Figur zeigt ein Brennstoffzellen- Kraftfahrzeug 14, welches eine Anhängerkupplung 18 aufweist. Mit der Anhängerkupplung 18 verbunden ist ein separater Kraftfahrzeuganhänger 22, welcher bei Bedarf an oder abgekuppelt werden kann. In dem Kraftfahrzeuganhänger 22 ist ein Zusatz-Wasserstofftank 26 angeordnet, über welchen das Brennstoffzellen- Kraftfahrzeug 14, zusätzlich zum bordeigenen Wasserstofftank, mit Wasserstoff versorgt werden kann, um zu einer nächsten Wasserstofftankstelle zu gelangen, oder um die Reichweite des Brennstoffzellen- Kraftfahrzeugs 14 zu erhöhen. Um den im Kraftfahrzeuganhänger 22 angeordneten Zusatz-Wasserstofftank 26, zur Wasserstoffversorgung, mit dem Brennstoffzellen- Kraftfahrzeug 14 zu verbinden, ist ein Wasserstoffanschluss 30 vorgesehen. Zur Regelung des am Wasserstoffanschluss 30 anliegenden Drucks auf den für die Brennstoffzelle erforderlichen Druck, ist in dem Kraftfahrzeuganhänger 22 eine Regeleinrichtung 34 angeordnet, welchen den Druck des vom Zusatz-Wasserstofftank 26 kommenden Wasserstoffs vermindert. Dadurch kann auf Hochdruckleitungen verzichtet werden. In the figure, a side view of an embodiment of the invention is shown. The figure shows a fuel cell motor vehicle 14 which has a trailer hitch 18 . Connected to the trailer hitch 18 is a separate motor vehicle trailer 22, which can be coupled or uncoupled as needed. In the motor vehicle trailer 22, an additional hydrogen tank 26 is arranged, via which the fuel cell motor vehicle 14, in addition to the on-board hydrogen tank, can be supplied with hydrogen in order to get to the next hydrogen filling station, or to increase the range of the fuel cell motor vehicle 14 . A hydrogen connection 30 is provided in order to connect the additional hydrogen tank 26 arranged in the motor vehicle trailer 22 for hydrogen supply to the fuel cell motor vehicle 14 . In order to regulate the pressure present at the hydrogen connection 30 to the pressure required for the fuel cell, a regulating device 34 is arranged in the motor vehicle trailer 22 which reduces the pressure of the hydrogen coming from the additional hydrogen tank 26 . This eliminates the need for high-pressure lines.
In dem Ausführungsbeispiel ist in dem Wasserstoffanschluss 30 ein nicht gezeigter Sensor angeordnet, mit welchem ein angeschlossener Zusatz-In the exemplary embodiment, a sensor, not shown, is arranged in the hydrogen connection 30, with which a connected additional
Wasserstofftank 26 detektierbar ist. Dadurch wird ein Wasserstoffpfad vom Wasserstoffanschi uss 30 zur Brennstoffzelle freigeschaltet, so dass die Brennstoffzelle mit Wasserstoff des Zusatz-Wasserstofftanks 26 versorgbar ist.Hydrogen tank 26 is detectable. This opens a hydrogen path from the hydrogen connection 30 to the fuel cell, so that the fuel cell can be supplied with hydrogen from the additional hydrogen tank 26 .
In dem Wasserstoffpfad zur Brennstoffzelle kann ein hier nicht gezeigter Drucksensor angeordnet sein, mit welchem ein Druckverlust, aufgrund eines fehlerhaft angeschlossenen Wasserstoffanschlusses 30, am Wasserstoffanschi uss 30 detektierbar ist. Dadurch kann die Sicherheit eines solchen Systems erhöht werden. A pressure sensor (not shown here) can be arranged in the hydrogen path to the fuel cell, with which a pressure loss due to an incorrectly connected hydrogen connection 30 at the hydrogen connection 30 can be detected. As a result, the security of such a system can be increased.

Claims

Ansprüche Expectations
1. System zum Versorgen eines Brennstoffzellen- Kraftfahrzeugs (14) mit Energie, umfassend einen separaten Zusatz-Wasserstofftank (26), welcher über eine Befestigungsvorrichtung (18) an dem Brennstoffzellen- Kraftfahrzeug (14) fixierbar ist, und wobei zum Verbinden des Zusatz- Wasserstofftanks (26) mit dem Brennstoffzellen- Kraftfahrzeug (14) ein Wasserstoffanschluss (30) vorgesehen ist. 1. System for supplying a fuel cell motor vehicle (14) with energy, comprising a separate additional hydrogen tank (26) which can be fixed to the fuel cell motor vehicle (14) via a fastening device (18), and wherein for connecting the additional Hydrogen tanks (26) with the fuel cell motor vehicle (14), a hydrogen connection (30) is provided.
2. System nach Anspruch 1, dadurch gekennzeichnet, dass die Befestigungsvorrichtung (18) durch eine Anhängerkupplung des Brennstoffzellen- Kraftfahrzeugs (14) gebildet ist. 2. System according to claim 1, characterized in that the fastening device (18) is formed by a trailer hitch of the fuel cell motor vehicle (14).
3. System nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zusatz-Wasserstofftank (26) in einem separaten Kraftfahrzeuganhänger (22) angeordnet ist, über welchen dieser an dem Brennstoffzellen- Kraftfahrzeug (14) fixierbar ist. 3. System according to claim 1 or 2, characterized in that the additional hydrogen tank (26) is arranged in a separate motor vehicle trailer (22) via which it can be fixed to the fuel cell motor vehicle (14).
4. System nach Anspruch 3, dadurch gekennzeichnet, dass der Kraftfahrzeuganhänger (22) Regeleinrichtungen (34) aufweist, mit welchen der Druck zum Wasserstoffanschluss (30) auf den erforderlichen Druck der Brennstoffzelle regelbar ist. 4. System according to claim 3, characterized in that the motor vehicle trailer (22) has control devices (34) with which the pressure to the hydrogen connection (30) can be regulated to the required pressure of the fuel cell.
5. System nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Brennstoffzellen- Kraftfahrzeug (14) eine Erkennungseinrichtung aufweist, mit welcher ein angeschlossener Zusatz-Wasserstofftank (26) detektierbar ist, so dass der Wasserstoff des Zusatz-Wasserstofftanks (26) der Brennstoffzelle zuleitbar ist. 5. System according to any one of the preceding claims, characterized in that the fuel cell motor vehicle (14) has a detection device with which a connected additional hydrogen tank (26) can be detected, so that the hydrogen of the additional hydrogen tank (26) of the fuel cell can be routed.
6. System nach Anspruch 5, dadurch gekennzeichnet, dass die Erkennungseinrichtung zusätzlich Einrichtungen aufweist, mit welchen ein fehlerhaft angeschlossener Wasserstoffanschluss (30) detektierbar ist. 6. System according to claim 5, characterized in that the detection device additionally has devices with which a faulty connected hydrogen connection (30) can be detected.
PCT/EP2022/060255 2021-05-04 2022-04-19 System for supplying energy to a fuel cell-operated motor vehicle WO2022233567A1 (en)

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DE102016225193A1 (en) * 2016-12-15 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Device, means of transport and method for refueling a pressure tank for fuel
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JP2020041652A (en) * 2018-09-13 2020-03-19 トヨタ自動車株式会社 Trailer lending system and trailer lending method
DE102019211494A1 (en) 2019-08-01 2021-02-04 Audi Ag System for supplying a motor vehicle and motor vehicle having an energy storage unit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6755225B1 (en) * 2003-01-24 2004-06-29 Quantum Fuel Systems Technologies Worldwide, Inc. Transportable hydrogen refueling station
EP1452794A2 (en) * 2003-02-21 2004-09-01 Air Products And Chemicals, Inc. Self-contained mobile fueling station
WO2010038069A2 (en) * 2008-09-30 2010-04-08 Cpi Innovation Services Limited Mobile fuel filling trailer
DE102009036072B3 (en) * 2009-08-04 2011-04-07 Ludwig-Bölkow-Systemtechnik GmbH Method for filling e.g. hydrogen in compressed gas vehicle, involves continuing filling sequence till reaching desired pressure level in tank or discontinuing sequence if container with pressure for further filling process is not available
DE102016225193A1 (en) * 2016-12-15 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Device, means of transport and method for refueling a pressure tank for fuel
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