NL2022815B1 - A method for operating a hydrogen fuel cell system in a vehicle as well as a hydrogen fuel cell system for operation in said vehicle. - Google Patents

A method for operating a hydrogen fuel cell system in a vehicle as well as a hydrogen fuel cell system for operation in said vehicle. Download PDF

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Publication number
NL2022815B1
NL2022815B1 NL2022815A NL2022815A NL2022815B1 NL 2022815 B1 NL2022815 B1 NL 2022815B1 NL 2022815 A NL2022815 A NL 2022815A NL 2022815 A NL2022815 A NL 2022815A NL 2022815 B1 NL2022815 B1 NL 2022815B1
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Netherlands
Prior art keywords
hydrogen fuel
power
fuel cells
fuel cell
fccu
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NL2022815A
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Dutch (nl)
Inventor
Evert Huijgen Jochem
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Hymove Holding B V
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Priority to NL2022815A priority Critical patent/NL2022815B1/en
Priority to EP20714301.7A priority patent/EP3947028A1/en
Priority to CN202080033603.5A priority patent/CN113795404A/en
Priority to PCT/NL2020/050199 priority patent/WO2020197389A1/en
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Publication of NL2022815B1 publication Critical patent/NL2022815B1/en

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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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and 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
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Fuel Cell (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A B S T R A C T A method for operating a hydrogen fuel cell system in a vehicle, wherein said vehicle comprises a Vehicle Control Unit, VCU, for controlling power provided to a drive train of said vehicle originating from any of a Battery Management System, BMS, comprising at least one battery, and said hydrogen fuel cell system which comprises a plurality of hydrogen fuel cells, wherein said hydrogen fuel cell system further comprises a Fuel Cell Control Unit, FCCU, and a Direct Current, DC- to-DC converter, said method comprises the steps of receiving an indication of a state of charge of said at least one battery, determining from said indication of said state of charge of said at least one battery, and from an instantaneous requested amount of power, a demand for power that is to be provided by said plurality of hydrogen fuel cells, requesting said demand for power that is to be provided by said plurality of hydrogen fuel cells, demanding an amount of current that is to be provided by said plurality of hydrogen fuel cells and supplying said demanded amount of current.

Description

Title: A method for operating a hydrogen fuel cell system in a vehicle as well as a hydrogen fuel cell system for operation in said vehicle. Description The present disclosure is related to a method for operating a hydrogen fuel cell system in a vehicle.
A hydrogen fuel cell system, in accordance with the present disclosure, comprises a plurality of hydrogen fuel cells. Each of these fuel cells may comprise a fuel cell stack and a controller. A fuel cell stack is an electrochemical cell that is able to convert the chemical energy from hydrogen fuel and oxygen into electricity. The electricity may be used, for example, to empower an electrical motor.
Hydrogen fuel cell stacks are thus not the same as regular batteries. Fuel cells work on the basis of fuel that is provided to the fuel cells, i.e. in the form of hydrogen. In a battery, electricity is generated based on chemicals that are already present in the battery.
The present disclosure is directed to the concept that a hydrogen fuel cell system is to operate alongside at least one battery, in a vehicle. Whenever the vehicle demands power, for example due to the fact that the throttle pedal is activated, the power may originate from the hydrogen fuel cell system and/or from the at least one battery.
One of the drawbacks of systems in which both the hydrogen fuel cell system and the at least one battery are operated in a vehicle is related to the life time of the battery and/or of the hydrogen fuel cell system.
It is an objective of the present disclosure to provide for a method for operating a hydrogen fuel cell system in a vehicle.
The present disclosure provides, in a first aspect, in a method for operating a hydrogen fuel cell system in a vehicle, wherein said vehicle comprises a Vehicle Control Unit, VCU, for controlling power provided to a drive train of said vehicle originating from any of a Battery Management System, BMS, comprising at least one battery, and said hydrogen fuel cell system which comprises a plurality of hydrogen fuel cells, wherein said hydrogen fuel cell system further comprises a Fuel Cell Control Unit, FCCU, and a Direct Current, DC-to-DC converter.
The method comprises the steps of:
- receiving, by said FCCU, from said VCU, an indication of a state of charge of said at least one battery; - determining, by said FCCU, from said indication of said state of charge of said at least one battery, and from an instantaneous requested amount of power, a demand for power that is to be provided by said plurality of hydrogen fuel cells; - requesting, by said FCCU, to said DC-to-DC converter, said demand for power that is to be provided by said plurality of hydrogen fuel cells; - demanding, by said DC-to-DC converter, from said FCCU, an amount of current that is to be provided by said plurality of hydrogen fuel cells; - supplying, by said FCCU, to said DC-to-DC converter, said demanded amount of current.
The inventors have found that the VCU should not be in control in demanding the amount of power that is to be supplied by the hydrogen fuel cell system.
The VCU is, typically, functionality that is physically separated from the FCCC.
The VCU may not be aware of the characteristics of the plurality of hydrogen fuel cells.
That is, the VCU may not know how to efficiently stress a hydrogen fuel cell.
As such, the inventors have found a method in which the FCCU is in charge.
The FCCU may determine, based on the state of charge of the at least one battery, how much the plurality of hydrogen fuel cells are to be stressed.
The FCCU may have in depth knowledge of the plurality of hydrogen fuel cells, which the FCCU can utilize for determining how much the hydrogen fuel cells may be stressed.
In accordance with the present disclosure, an indication of a state of charge of the at least one battery may be considered as information as to how full the at least one battery actually is.
Such information may be used by the FCCU to determine how much electrical power may be drained from the at least one battery.
The inventors have noted that the lifespan of a battery may be related to the state of charge in which the battery is kept.
As such, for example, it may be beneficial to not fully drain the battery as that could be disadvantageous for the life span of the battery.
Following the above, the FCCU determines, from the indication of the state of charge of the at least one battery and from an instantaneous requested amount of power, a demand for power that is to be provided by the plurality of hydrogen fuel cells is determined.
Here, the FCCU may consider a power-ramp up that is beneficial for the life span of the hydrogen fuel cells and may consider a power-ramp up that is beneficial for the life span of the at least one battery.
More specifically, the FCCU may follow a preferred power-ramp up curve for drawing power from the plurality of hydrogen fuel cells and may entrust the VCU to draw to remaining power, i.e. the deficient power being the difference between the instantaneous requested amount of power and the power-ramp up curve, from the at least one battery.
Following the above, the DC-to-DC converter will request the amount of current that is to be provided by the plurality of hydrogen fuel cells based on the demand of power that is to be provided by the plurality of hydrogen fuel cells.
It is noted that, in accordance with the present disclosure, the DC-to- DC controller is operated by the FCCU. As mentioned above, one of the advantages of this is that the FCCU is in control of the amount of power that is to be provided by the plurality of hydrogen fuel cells.
In an example, the step of determining comprises: - determining, by said FCCU, from said indication of said state of charge of said at least one battery and from said instantaneous requested amount of power, a demand for power that is to be provided by said plurality of hydrogen fuel cells such that an expected state of charge of said at least one battery does not fall under a predetermined threshold.
The advantage of this particular example is that the life span of the at least one battery is ensured.
In a further example, the predetermined threshold is between 30% - 55%, preferably between 45% - 55%, more preferably around 50%.
In an example, the method further comprises the steps of: - receiving, by said FCCU, from said plurality of hydrogen fuel cells fuel cell information comprising any of: - voltages of each of said plurality of hydrogen fuel cells; - voltage of said plurality of hydrogen fuel cells as a whole; - relative voltage of a weakest cell compared to an average voltage of each of said plurality of hydrogen fuel cells; wherein said step of determining comprises: - determining, by said FCCU, said demand for power that is to be provided by said plurality of hydrogen fuel cells also based on said fuel cell information.
The advantage of this particular example is that the FCCU is able to steer the plurality of fuel cells such based on information that may directly affect the life span.
In a further example, the FCCU comprises a power-up curve and a power-down curve for indicating a preferred ramping up curve for increasing power from said plurality of fuel cells and a preferred ramping down curve for reducing power from said plurality of fuel cells, respectively, and wherein said step of determining comprises: - determining, by said FCCU, said demand for power that is to be provided by said plurality of hydrogen fuel cells also based on any of said power-up curve and said power-down curve.
Preferably, the FCCU controls the amount of power to be provided by the plurality of hydrogen fuel cells such that the actually delivered power over time corresponds to the power-up curve. This ensures that the life span of the plurality of fuel cells is improved.
In a second aspect, there is provided a hydrogen fuel cell system for operation in a vehicle, wherein said vehicle comprises a Vehicle Control Unit, VCU, for controlling power provided to a drive train of said vehicle originating from any of a Battery Management System, BMS, comprising at least one battery, and said hydrogen fuel cell system which comprises a plurality of hydrogen fuel cells, wherein said hydrogen fuel cell system further comprises a Fuel Cell Control Unit, FCCU, and a Direct Current, DC-to-DC converter.
The FCCU further comprising: - receive equipment arranged for receiving, from said VCU, an indication of a state of charge of said at least one battery; - process equipment arranged for determining, from said indication of said state of charge of said at least one battery, and from an instantaneous requested amount of power, a demand for power that is to be provided by said plurality of hydrogen fuel cells; - request equipment arranged for requesting, to said DC-to-DC converter, said demand for power that is to be provided by said plurality of hydrogen fuel cells; - demand equipment arranged for demanding, from said FCCU, an amount of current that is to be provided by said plurality of hydrogen fuel cells;
- supply equipment arranged for supplying, to said DC-to-DC converter, said demanded amount of current.
It is noted that the advantages and definitions as disclosed with respect to the examples of the first aspect of the present disclosure, being the method 5 for operating a hydrogen fuel cell system in a vehicle also corresponds to the examples of the second aspect of the present disclosure, being the hydrogen fuel cell system for operation in a vehicle.
In an example, the process equipment is further arranged for determining, from said indication of said state of charge of said at least one battery and from said instantaneous requested amount of power, a demand for power that is to be provided by said plurality of hydrogen fuel cells such that an expected state of charge of said at least one battery does not fall under a predetermined threshold.
In a further example, the predetermined threshold is 50%. In another example, the receive equipment is further arranged for receiving, from said plurality of hydrogen fuel cells fuel cell information comprising any of: - voltages of each of said plurality of hydrogen fuel cells; - voltage of said plurality of hydrogen fuel cells as a whole; - relative voltage of a weakest cell compared to an average voltage of each of said plurality of hydrogen fuel cells; and wherein said process equipment is further arranged for determining said demand for power that is to be provided by said plurality of hydrogen fuel cells also based on said fuel cell information.
In a further example, the FCCU comprises a power-up curve and a power-down curve for indicating a preferred ramping up curve for increasing power from said plurality of fuel cells and a preferred ramping down curve for reducing power from said plurality of fuel cells, respectively, and wherein said process equipment is further arranged for determining said demand for power that is to be provided by said plurality of hydrogen fuel cells also based on any of said power-up curve and said power-down curve.
In a third aspect, there is provided a computer program product comprising a computer readable medium having instructions stored thereon which, when executed by a hydrogen fuel cell system cause said hydrogen fuel cell system to implement a method in accordance with any of the method examples as provided above. The above-mentioned and other features and advantages of the disclosure will be best understood from the following description referring to the attached drawings. In the drawings, like reference numerals denote identical parts or parts performing an identical or comparable function or operation. Brief description of the Figures Figure 1 schematically shows a schematic diagram illustrating the cooperation of batteries and a fuel cell system in accordance with the present disclosure.
Figure 2 schematically shows a schematic diagram illustrating a hydrogen fuel cell system in accordance with the present disclosure.
Detailed description Figure 1 schematically shows a schematic diagram 1 illustrating the cooperation of batteries 3 and a fuel cell system in accordance with the present disclosure.
The drive train of the vehicle is indicated with reference numeral 2. The drive train 2 of a vehicle is the group of components that deliver power to the driving wheels. This typically excludes the engine or motor that generates the power. In contrast, the powertrain is considered to include both the engine or motor and the drivetrain. In this particular scenario’s the power originates from either the batteries 3 or the hydrogen fuel cells, or a combination thereof.
The power delivered 12 to the drive train 2 is controlled by a Vehicle Control Unit, VCU, 9. The VCU 9 retrieves 13 power from the batteries 3 or is provided 14 with power originating from hydrogen fuel cells.
The present disclosure is directed to a method for operating a hydrogen fuel cell system in a vehicle. The fuel cell system comprises a Fuel Cell Control Unit, FCCU, 7 a Direct Current, DC to DC converter 6 and a plurality of hydrogen fuel cells.
The schematic diagram 1 denotes a single functional block referred to as batteries 3. It is noted that the present disclosure may deal with a Battery Management System, BMS, comprising at least one battery. Typically, multiple batteries may be provided for storing sufficient energy for empowering the vehicle. The batteries may be recharged by inducing electrical energy during braking of the vehicle.
The method may initiate by receiving 11, by said FCCU 7, from the VCU 9, an indication of a state of charge of the batteries 3. The inventors have noted that, in order to increase the life span of the batteries, the batteries should ideally be operated in an operating window of between 40% - 65%.
In accordance with the present disclosure, the FCCU 7 is separate from the VCU 9, and is in charge of distributing the requested power among the hydrogen fuel cells and the batteries 3. In order to do so, as mentioned above, the FCCU 7 may receive the indication of the state of charge of the batteries 3.
The FCCU 7 may then determine, from the received indication of the state of charge as well as from an instantaneous requested amount of power, a demand for power that is to be provided by the plurality of hydrogen fuel cells.
In other words, the FCCU 7 may, for example, determine how much power is to be provided by the plurality of hydrogen fuel cells such that the state of charge of the batteries 3 may not fall below a particular threshold. This improves the lifespan of the plurality of fuel cells.
Next, the FCCU 7 may request 15 at said DC-to-DC converter 6, the demand for power that is to be provided by the plurality of hydrogen fuel cells. The DC-to-DC convert then demands 16 from the FCCU 7, an amount of current that is to be provided by the plurality of hydrogen fuel cells, which is, finally, supplied 17, by the FCCU 7 to the DC-to-DC converter 6.
It is noted that the current demand is denoted with reference numeral 4, the current supply is denoted with reference numeral 8, the state of charge is denoted with reference numeral 10 and the fuel cells are denoted with reference numeral 5.
Figure 2 schematically shows a schematic diagram 51 illustrating a hydrogen fuel cell system in accordance with the present disclosure.
The hydrogen fuel cell system 51 is arranged for operation in a vehicle, wherein said vehicle comprises a Vehicle Control Unit, VCU, for controlling power provided to a drive train of said vehicle originating from any of a Battery
Management System, BMS, comprising at least one battery, and said hydrogen fuel cell system which comprises a plurality of hydrogen fuel cells, wherein said hydrogen fuel cell system further comprises a Fuel Cell Control Unit, FCCU, and a Direct Current, DC-to-DC converter. The FCCU further comprising: - receive equipment 52 arranged for receiving, from said VCU, an indication of a state of charge of said at least one battery; - process equipment 53 arranged for determining, from said indication of said state of charge of said at least one battery, and from an instantaneous requested amount of power, a demand for power that is to be provided by said plurality of hydrogen fuel cells; - request equipment 56 arranged for requesting, to said DC-to-DC converter, said demand for power that is to be provided by said plurality of hydrogen fuel cells; - demand 54 equipment arranged for demanding, from said FCCU, an amount of current that is to be provided by said plurality of hydrogen fuel cells; - Supply equipment 55 arranged for supplying, to said DC-to-DC converter, said demanded amount of current.
Other variations to the disclosed examples can be understood and effected by those skilled in the art in practicing the claimed disclosure, from a study of the drawings, the disclosure and the appended claims. In the claims, the word “comprising” does not exclude other elements or steps, and the indefinite article “a” or “an” does not exclude a plurality. A single processor or other unit may fulfil the Functions of several items recited in the claims. The mere fact that certain measures Are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. A computer program may be stored/distributed on a suitable medium, such as an optical storage medium or a solid state medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems. Any reference signs in the claims should not construed as limiting scope thereof.
The present disclosure is not limited to the examples as disclosed above, and can be modified and enhanced by those skilled in the art beyond the scope of the present disclosure as disclosed in the appended claims without having to apply inventive skills.

Claims (11)

CONCLUSIESCONCLUSIONS 1. Werkwijze voor het bedienen van een waterstofbrandstofcelsysteem in een voertuig, waarbij het voertuig omvat een voertuigstuureenheid, VCU, voor het sturen van vermogen verschaft aan een aandrijflijn van het voertuig afkomstig van een van een batterijbeheersysteem, BMS, omvattende ten minste een batterij, en het waterstofbrandstofcelsysteem welke omvat de veelheid van waterstofbrandcellen, waarin het waterstofbrandstofcelsysteem verder omvat een brandstofcelstuureenheid, FCCU, en een gelijkstroom, DC-naar-DC omzetter, waarbij de werkwijze omvat de stappen van het: - ontvangen, door de FCCU, van de VCU, van een indicatie van een toestand van lading van de ten minste ene batterij; - bepalen, door de FCCU, van de uit de indicatie van de toestand van lading van de ten minste ene batterij, en van een momentaan verzochte hoeveelheid vermogen, van een vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen; - verzoeken, door de FCCU, aan de DC-naar-DC omzetter, van de vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen; - vragen, door de DC-naar-DC omzetter, van de FCCU, van een hoeveelheid stroom die verschaft dient te worden door de veelheid van waterstofbrandstofcellen; - verschaffen, door de FCCU, naar de DC-naar-DC omzetter, van de gevraagde hoeveelheid stroom.A method of operating a hydrogen fuel cell system in a vehicle, the vehicle comprising a vehicle control unit, VCU, for controlling power provided to a powertrain of the vehicle from one of a battery management system, BMS, comprising at least one battery, and the hydrogen fuel cell system comprising the plurality of hydrogen fuel cells, wherein the hydrogen fuel cell system further comprises a fuel cell control unit, FCCU, and a direct current, DC-to-DC converter, the method comprising the steps of: receiving, by the FCCU, the VCU, of an indication of a state of charge of the at least one battery; - determining, by the FCCU, from the charge state indication of the at least one battery, and a currently requested amount of power, a demand for power to be provided by the plurality of hydrogen fuel cells; requests, by the FCCU, to the DC-to-DC converter, the demand for power to be provided by the plurality of hydrogen fuel cells; - request, by the DC-to-DC converter, from the FCCU, an amount of power to be provided by the plurality of hydrogen fuel cells; providing, by the FCCU, to the DC-to-DC converter, the requested amount of power. 2. Werkwijze volgens conclusie 1, waarin de stap van het bepalen omvat het: - bepalen, door de FCCU, uit de indicatie van de toestand van lading van de ten minste ene batterij en van de momentaan verzochte hoeveelheid van vermogen, van een vraag voor vermogen die verschaft dient te worden door de veelheid van waterstof- brandstofcellen zodanig dat de verwachte toestand van lading van de ten minste ene batterij niet onder een vooraf bepaalde drempel valt.The method of claim 1, wherein the determining step comprises: - determining, by the FCCU, from the indication of the state of charge of the at least one battery and the amount of power currently requested, of a demand for power to be provided by the plurality of hydrogen fuel cells such that the expected state of charge of the at least one battery does not fall below a predetermined threshold. 3. Werkwijze volgens conclusie 2, waarin de vooraf bepaalde drempel 20% is.The method of claim 2, wherein the predetermined threshold is 20%. 4. Werkwijze volgens een van de voorgaande conclusies, waarin de werkwijze verder de stappen omvat van het: - ontvangen, door de FCCU, van de veelheid van waterstofbrandstofcellen van waterstofbrandstofcelinformatie omvattende een van: - Spanningen van elk van de veelheid van waterstofbrandstofcellen;A method according to any preceding claim, wherein the method further comprises the steps of: - receiving, by the FCCU, the plurality of hydrogen fuel cells hydrogen fuel cell information comprising one of: - voltages from each of the plurality of hydrogen fuel cells; - spanning van de veelheid van waterstofbrandstofcellen als een geheel; - relatieve spanning van een zwakste cel vergeleken met een gemiddelde spanning van elk van de veelheid van waterstofbrandstofcellen; waarin de stap van het bepalen omvat het: - bepalen, door de FCCU, van de vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen ook gebaseerd op de brandstofcelinformatie.voltage of the plurality of hydrogen fuel cells as a whole; relative voltage of a weakest cell compared to an average voltage of each of the plurality of hydrogen fuel cells; wherein the determining step includes: determining, by the FCCU, the demand for power to be provided by the plurality of hydrogen fuel cells based also on the fuel cell information. 5. Werkwijze volgens een van de voorgaande conclusies, waarin de FCCU omvat een vermogensopwaartse curve en een vermogensneerwaartse curve voor het aangeven van een geprefereerde opwaartse curve voor het verhogen van vermogen van de veelheid van brandstofcellen en een geprefereerde neerwaartse curve voor het reduceren van vermogen van de veelheid van brandstofcellen, respectievelijk, en waarin de stap van het bepalen omvat het: - bepalen, door de FCCU, van de vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen ook gebaseerd op een van de vermogensopwaartse curve en de vermogensneerwaartse curve.A method according to any one of the preceding claims, wherein the FCCU comprises a power up curve and a power down curve for indicating a preferred up curve for increasing power of the plurality of fuel cells and a preferred down curve for reducing power of the plurality of fuel cells. the plurality of fuel cells, respectively, and wherein the determining step includes: determining, by the FCCU, the demand for power to be provided by the plurality of hydrogen fuel cells based also on one of the power up curve and the power down curve curve. 6. Waterstofbrandstofcelsysteem voor werking in een voertuig, waarin het voertuig omvat een voertuigstuureenheid, VCU, voor het sturen van vermogen verschaft aan een aandrijflijn van het voertuig afkomstig van een van een batterijpeheersysteem, BMS, omvattende ten minste een batterij, en het waterstofbrandstofcelsysteem welke omvat de veelheid van waterstofbrandstofcellen, waarin het waterstofbrandstofcelsysteem verder omvat een brandstofcelstuureenheid, FCCU, en een gelijkstroom, DC-naar-DC omzetter, en waarbij de FCCU verder omvat: - ontvangstinrichting ingericht voor het ontvangen, van de VCU, van een indicatie van een toestand van lading van de ten minste ene batterij; - verwerkinrichting ingericht voor het bepalen, uit de indicatie van de toestand van lading van de ten minste ene batterij, en uit een momentaan verzochte hoeveelheid vermogen, van een vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen; - verzoekinrichting ingericht voor het verzoeken, aan de DC-naar-DC omzetter, van de vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen;A hydrogen fuel cell system for operation in a vehicle, wherein the vehicle comprises a vehicle control unit, VCU, for controlling power provided to a powertrain of the vehicle from one of a battery management system, BMS, comprising at least one battery, and the hydrogen fuel cell system comprising the plurality of hydrogen fuel cells, wherein the hydrogen fuel cell system further comprises a fuel cell control unit, FCCU, and a direct current, DC-to-DC converter, and wherein the FCCU further comprises: - receiving device configured to receive, from the VCU, an indication of a condition of charge of the at least one battery; - processing device arranged to determine, from the indication of the state of charge of the at least one battery, and from a current requested amount of power, a demand for power to be provided by the plurality of hydrogen fuel cells; request device configured to request, from the DC-to-DC converter, the demand for power to be provided by the plurality of hydrogen fuel cells; - vraaginrichting ingericht voor het vragen, van de FCCU van een hoeveelheid van stroom die verschaft dient te worden door een veelheid van waterstofbrandstofcellen; - verschafinrichting ingericht voor het verschaffen, aan de DC-naar-DC omzetter, van de gevraagde hoeveelheid stroom.demand device configured to request, from the FCCU, an amount of power to be provided by a plurality of hydrogen fuel cells; - providing device adapted to provide, to the DC-to-DC converter, the requested amount of current. 7. Waterstofbrandstofcelsysteem volgens conclusie 8, waarin de verwerkinrichting verder is ingericht voor het bepalen, uit de indicatie van de toestand van lading van de ten minste ene batterij en uit de momentaan verzochte hoeveelheid vermogen, van een vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen zodanig dat de verwachte toestand van lading van de ten minste ene batterij niet onder een vooraf bepaalde drempel valt.The hydrogen fuel cell system of claim 8, wherein the processor is further configured to determine, from the indication of the state of charge of the at least one battery and from the currently requested amount of power, a demand for power to be provided by the plurality of hydrogen fuel cells such that the expected state of charge of the at least one battery does not fall below a predetermined threshold. 8. Waterstofbrandstofcelsysteem volgens conclusie 7, waarin de vooraf bepaalde drempel 50% is.The hydrogen fuel cell system of claim 7, wherein the predetermined threshold is 50%. 9. Waterstofbrandstofcelsysteem volgens een van de conclusies 7 tot en met 8, waarin de ontvangstinrichting verder is ingericht voor het ontvangen, van de veelheid van waterstofbrandstofcellen van brandstofcelinformatie omvattende een van: - Spanningen van elk van de veelheid van waterstofbrandstofcellen; - Spanning van de veelheid van waterstofbrandstofcellen als een geheel; - relatief vermogen van een zwakste cel vergeleken met een gemiddelde spanning van elk van de veelheid van waterstofbrandstofcellen; en waarin de verwerinrichting verder is ingericht voor het bepalen van de vraag voor vermogen die verschaft dient te worden door de veelheid van waterstof- brandstofcellen ook op basis van de brandstofcelinformatie.A hydrogen fuel cell system according to any one of claims 7 to 8, wherein the receiving device is further configured to receive the plurality of hydrogen fuel cells fuel cell information comprising one of: - voltages from each of the plurality of hydrogen fuel cells; Voltage of the plurality of hydrogen fuel cells as a whole; relative power of a weakest cell compared to an average voltage of each of the plurality of hydrogen fuel cells; and wherein the processor is further configured to determine the demand for power to be provided by the plurality of hydrogen fuel cells also based on the fuel cell information. 10. Waterstofbrandstofcelsysteem volgens een van de conclusies 7 tot en met 9, waarin de FCCU omvat een vermogensopwaartse curve en een vermogensneerwaartse curve voor het aangeven van een geprefereerde opwaartse curve voor het verhogen van vermogen van de veelheid van brandstofcellen en een geprefereerde neerwaartse curve voor het reduceren van vermogen van de veelheid van brandstofcellen respectievelijk, en waarin de verwerkinrichting verder is ingericht voor het bepalen van de vraag voor vermogen die verschaft dient te worden door de veelheid van waterstofbrandstofcellen ook op basis van de vermogensopwaartse curve en de vermogensneerwaartse curve.The hydrogen fuel cell system of any one of claims 7 to 9, wherein the FCCU includes a power up curve and a power down curve to indicate a preferred upward curve for increasing the power of the plurality of fuel cells and a preferred downward curve for the reducing power of the plurality of fuel cells respectively, and wherein the processor is further configured to determine the demand for power to be provided by the plurality of hydrogen fuel cells based also on the power up curve and the power down curve. 11. Computerprogrammaproduct omvattende een door een computer leesbaar medium met instructies daarop opgeslagen welke, wanneer uitgevoerd door een waterstofbrandstofcelsysteem bewerkstelligen dat het waterstofbrandstofcelsysteem een werkwijze implementeert volgens een van de conclusies 1 tot en met 6.A computer program product comprising a computer readable medium with instructions stored thereon which, when executed by a hydrogen fuel cell system, cause the hydrogen fuel cell system to implement a method according to any one of claims 1 to 6.
NL2022815A 2019-03-26 2019-03-26 A method for operating a hydrogen fuel cell system in a vehicle as well as a hydrogen fuel cell system for operation in said vehicle. NL2022815B1 (en)

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CN202080033603.5A CN113795404A (en) 2019-03-26 2020-03-25 Method for operating a hydrogen fuel cell system in a vehicle and hydrogen fuel cell system for operating in said vehicle
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