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WO2012127402A4 - System and method for monitoring and controlling fuel cell power plant in a vehicle - Google Patents

System and method for monitoring and controlling fuel cell power plant in a vehicle Download PDF

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Publication number
WO2012127402A4
WO2012127402A4 PCT/IB2012/051299 IB2012051299W WO2012127402A4 WO 2012127402 A4 WO2012127402 A4 WO 2012127402A4 IB 2012051299 W IB2012051299 W IB 2012051299W WO 2012127402 A4 WO2012127402 A4 WO 2012127402A4
Authority
WO
WIPO (PCT)
Prior art keywords
hydrogen
fuel cell
cell stack
predefined
pressure
Prior art date
Application number
PCT/IB2012/051299
Other languages
French (fr)
Other versions
WO2012127402A1 (en
Inventor
Raja MUNUSAMY
Bhut Bhaveshkumar DHIRAJLAL
Original Assignee
Tata Motors Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tata Motors Limited filed Critical Tata Motors Limited
Publication of WO2012127402A1 publication Critical patent/WO2012127402A1/en
Publication of WO2012127402A4 publication Critical patent/WO2012127402A4/en

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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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling 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
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04358—Temperature; Ambient temperature of the coolant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04365—Temperature; Ambient temperature of other components of a fuel cell or fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04388—Pressure; Ambient pressure; Flow 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
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04395—Pressure; Ambient pressure; Flow of cathode 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
    • H01M8/04492—Humidity; Ambient humidity; Water content
    • H01M8/04507—Humidity; Ambient humidity; Water content of cathode 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
    • H01M8/04664—Failure or abnormal function
    • 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
    • H01M8/04701—Temperature
    • H01M8/04723—Temperature of the coolant
    • 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
    • H01M8/04701—Temperature
    • H01M8/04731—Temperature of other components of a fuel cell or fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • 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
    • H01M8/04828—Humidity; Water content
    • H01M8/04835—Humidity; Water content of fuel cell 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
    • H01M8/04955—Shut-off or shut-down of fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • H01M8/04134—Humidifying by coolants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • 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
    • H01M8/04223—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
    • H01M8/04268—Heating of fuel cells during the start-up of the 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
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

A system and a method to monitor and control malfunctioning associated with operating parameters of the fuel cell power plant in a vehicle. The system comprises a fuel cell stack to provide power supply to the vehicle. A hydrogen storage system interfaced with a control unit to store and supply hydrogen fuel at predefined state to the fuel cell stack. An air subsystem provides air supply to the fuel cell stack. A thermal management system controls temperature of the fuel cell stack. A control unit monitors and control the hydrogen and air supply, and temperature of the fuel cell stack with in specified limits.

Claims

1 AMENDED CLAIMS received by the International Bureau on 1 1 September 2012 (1 1.09.2012) We claim
1. A system to monitor and control fuel cell power plant 100 in a vehicle comprising:
a fuel cell stack 102 to provide power supply to the vehicle 122;
hydrogen storage system (104, 106) interfaced with a control unit to store and supply hydrogen fuel at predefined state to the fuel cell stack;
an air subsystem 108 interfaced with the control unit to provide air supply to the fuel cell stack;
thermal management system (110, 112 and 114) interfaced with the control unit to control temperature of the fuel cell stack;
wiring harness 118 to provide connectivity between plurality of equipments of the fuel cell power plant; and
the control unit to monitor and control the hydrogen and air supply, and temperature of the fuel cell stack.
2. The system as claimed in claim 1, wherein the hydrogen storage system comprises:
hydrogen storage and regulation system 106 to store and dispense the hydrogen fuel based on power requirement of the vehicle;
hydrogen subsystem 104 to supply the hydrogen fuel to the fuel cell stack at predefined state through a solenoid valve and a humidification system via hydrogen circulation line from the hydrogen storage system.
3. The system as claimed in claim 1, wherein the hydrogen storage and regulation system 106 comprises:
a hydrogen cylinder for storing hydrogen gas;
pressure relief valve to monitor the pressure of hydrogen;
electrically activated solenoid valve to supply the hydrogen to the fuel cell stack; pressure regulator and a dome loaded regulator to regulate the pressure of hydrogen and there by control the flow rate of hydrogen;
plurality of sensor interface blocks for mounting plurality of sensors.
4. The system as claimed in claim 1, wherein the hydrogen subsystem 104 comprises:
a hydrogen recirculation blower connected to the fuel cell stack for re-circulating the hydrogen through a humidification system; 2 a hydrogen purging and diffusing system to remove condensed water and other impurities from the fuel cell stack.
5. The system as claimed in claim 1, wherein the fuel cell power plant consists of plurality of pressure transducers to measure pressure of hydrogen in the fuel cell stack.
6. The system as claimed in claim 1 , wherein the fuel cell power plant consists of plurality of temperature and humidity sensors interfaced with the control unit to measure temperature and humidity of the fuel cell stack.
7. The system as claimed in claim 1, wherein the thermal management system comprises: a radiator 110 connected to an inlet of the fuel cell stack 102, said radiator 1 10 consisting of plurality of fans ranging between 1 to 12 for reducing heat from the fuel cell stack 102;
a coolant pump 112 connected to the fuel cell stack 102 through the radiator 110 to circulate coolant to the fuel cell stack;
a temperature sensor connected to an outlet of the fuel cell stack, said temperature sensor measures temperature of the coolant coming out of the fuel cell stack;
heater and water dispensing system is connected to the coolant pump to heat the coolant for faster start up of fuel cell power system requiring at ambient temperature; a humidifier system is connected to the heater and water dispensing system and the fuel cell stack to control humidity.
8. The system as claimed in claim 7, wherein the controller switches ON the heater to heat the coolant if the temperature is less than 40° C.
9. A method of monitoring and controlling fuel cell power plant in a vehicle, said method comprising acts of:
estimating current value based on power demand of the vehicle and auxiliaries of the fuel cell power plant;
generating control signals by the controller for predefined parameters of corresponding components of the fuel cell plant based on the current value and sensor inputs;
monitoring the predefined parameters using plurality of corresponding sensors and comparing the predefined parameter values with predefined values; 3 maintaining the predefined parameters with in specified limits else generating alarm to alert and switch OFF system if the parameters value exceeds predefined values by varying the operating conditions to control the fuel cell power plant.
10. The method as claimed in claim 9, wherein the predefined parameters are at least one of hydrogen pressure, air pressure, air and hydrogen humidity's, and coolant temperature.
11. The method as claimed in claim 9, wherein the control signals comprises of air compressor RPM for air subsystem component, coolant pump RPM for thermal management and hydrogen recirculation blower controller signal for hydrogen subsystem and control signal for water dosing pump of humidifier system.
12. The method as claimed in claim 9, wherein the components of the fuel cell plant comprises air compressor for providing air supply, coolant pump for supplying coolant to the fuel cell stack, hydrogen recirculation blower for re-circulating the hydrogen and water dosing pump for dosing water for humidification.
13. The method as claimed in claim 9, wherein the predefined value of the coolant temperature ranges between 65°C to 75°C.
14. The method as claimed in claim 9, wherein the predefined value of the hydrogen pressure ranges between 0 to 320 kPa, air pressure ranges between 0 to 300 kPa, and relative humidity of air and hydrogen varies between 65 to 100%.

4

STATEMENT UNDER ARTICLE 19 (1)

The Applicant acknowledges the receipt of the ISR&WO dated 1 1th July, 2012 issued by the European Patent Office with respect to the aforementioned matter and herewith wishes to respond to the objections raised by the learned Authorized Officer are under Article 19, along with claim amendments.

The Applicant states that the instant invention discloses a system to monitor and control fuel cell power plant (FCPP) in a vehicle and a method thereof. The system comprises a fuel cell stack to provide power supply to the vehicle; hydrogen storage to store and supply hydrogen at predefined state to the fuel cell stack, and is interfaced with a control unit. An air subsystem interfaced with the control unit, to supply air to the fuel cell stack; a thermal management system interfaced with the control unit, to control temperature of the fuel cell stack. A wiring harness is provided for connectivity between plurality of equipments of the FCPP and the control unit to monitor and control the hydrogen and air supply and temperature of the fuel cell stack.

The hydrogen storage system comprises a hydrogen storage and regulation system (HSRS) for storing and dispensing hydrogen based on power requirement of the vehicle; and hydrogen subsystem for supplying the hydrogen to the fuel cell stack at predefined state through a solenoid valve and a humidification system via hydrogen circulation line from the hydrogen storage system. The HSRS comprises a pressure relief valve to monitor the pressure of hydrogen, an electrically activated solenoid valve to supply the hydrogen to the fuel cell stack, a pressure regulator and a dome loaded regulator to regulate the pressure of hydrogen and control the flow rate of hydrogen. The hydrogen subsystem comprises a hydrogen recirculation blower for re-circulating the hydrogen through a humidification system, and hydrogen purging and diffusing system to remove condensed water and other impurities from the fuel cell stack. Also, the instant invention discloses a method of monitoring and controlling fuel cell power plant in a vehicle, comprising estimating current value based on power demand of the vehicle and auxiliaries of the fuel cell power plant, generating control signals using a controller for predefined parameters of the fuel cell plant based on the current value and sensed inputs from a sensor. Also, the method comprises monitoring and controlling the predefined parameters with predefined values, such that the predefined parameters are maintained within specified limits and generating alarm to alert and switching OFF the system if the parameters value exceeds predefined values. The predefined parameters are one of hydrogen pressure, air pressure, air and hydrogen humidity's and coolant temperature. The cited documents do not talk about method and system as disclosed in the instant invention.

The Applicant is of the opinion that the claims amendments are successful in overcoming the novelty, inventiveness and clarity issues raised by the learned Authorized Officer. Therefore, the learned Authorized Officer is requested to consider the same and issue a favourable International Preliminary Report on Patentability.

***

PCT/IB2012/051299 2011-03-24 2012-03-19 System and method for monitoring and controlling fuel cell power plant in a vehicle WO2012127402A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN873MU2011 2011-03-24
IN873/MUM/2011 2011-03-24

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WO2012127402A4 true WO2012127402A4 (en) 2012-11-15

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CN108470928A (en) * 2017-02-20 2018-08-31 武汉众宇动力系统科技有限公司 Fuel system and its detection method for unmanned plane fuel cell
CN107017421B (en) * 2017-03-09 2024-03-19 北京交通大学 Fuel real-time monitoring and recycling device of fuel cell automobile
CN109659586B (en) * 2018-12-28 2023-05-26 佛山索弗克氢能源有限公司 Hydrogen power generation and energy storage device and starting method thereof
JP7420598B2 (en) * 2020-03-09 2024-01-23 本田技研工業株式会社 Gas control system and gas control method
IT202000005917A1 (en) * 2020-03-19 2021-09-19 Metatron S P A FUEL CELL SYSTEM AND ELECTRONIC FUEL PRESSURE REGULATOR FOR SUCH SYSTEM
CN111430750B (en) * 2020-04-02 2023-02-17 重庆大学 Intelligent control system for anode pressure of fuel cell automobile stack
CN113707919B (en) * 2021-07-27 2022-12-27 武汉海亿新能源科技有限公司 Method and system for distinguishing, regulating and controlling internal humidity of fuel cell system stack
CN113991145B (en) * 2021-10-27 2023-06-30 广东电网有限责任公司 Power generation cell pile reactor air inlet dynamic water management system and control method thereof

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DE10110419A1 (en) * 2000-03-08 2003-10-23 Honda Motor Co Ltd The fuel cell system
JP4147924B2 (en) * 2002-12-03 2008-09-10 日産自動車株式会社 Fuel cell system
US7919210B2 (en) * 2004-06-30 2011-04-05 GM Global Technology Operations LLC Thermoelectric augmented fuel cell system

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