WO2013114699A1 - 燃料電池車両 - Google Patents

燃料電池車両 Download PDF

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Publication number
WO2013114699A1
WO2013114699A1 PCT/JP2012/079238 JP2012079238W WO2013114699A1 WO 2013114699 A1 WO2013114699 A1 WO 2013114699A1 JP 2012079238 W JP2012079238 W JP 2012079238W WO 2013114699 A1 WO2013114699 A1 WO 2013114699A1
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WO
WIPO (PCT)
Prior art keywords
hydrogen
fuel cell
turned
cell system
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/079238
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English (en)
French (fr)
Japanese (ja)
Inventor
洋平 高田
章徳 本間
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to DE112012005804.6T priority Critical patent/DE112012005804B4/de
Priority to CN201280068027.3A priority patent/CN104066612B/zh
Priority to JP2013556200A priority patent/JP5817848B2/ja
Priority to US14/363,006 priority patent/US9108529B2/en
Priority to GB1407102.1A priority patent/GB2512756B/en
Priority to IN4875CHN2014 priority patent/IN2014CN04875A/en
Publication of WO2013114699A1 publication Critical patent/WO2013114699A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • 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
    • H01M8/0444—Concentration; Density
    • H01M8/04447—Concentration; Density of anode reactants at the inlet or inside the fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04664—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
    • H01M8/04858—Electric variables
    • H01M8/04949—Electric variables other electric variables, e.g. resistance or impedance
    • H01M8/04953—Electric variables other electric variables, e.g. resistance or impedance of auxiliary devices, e.g. batteries, capacitors
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/80—Time limits
    • 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
    • B60L2250/00—Driver interactions
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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
    • B60L2250/00—Driver interactions
    • B60L2250/12—Driver interactions by confirmation, e.g. of the input
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • 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
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    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the present invention relates to a fuel cell vehicle in which driving wheels are driven by a motor using electric power generated by a fuel cell system.
  • Patent Document 1 discloses detection of hydrogen leakage when power generation of a fuel cell system is stopped.
  • Patent Document 2 discloses detection of hydrogen leakage when the system is in a dormant state.
  • Patent Document 3 discloses a system for detecting an abnormality such as hydrogen leakage. In the technologies disclosed in these Patent Documents 1 to 3, the power source of the device for detecting hydrogen leakage is always turned on.
  • JP 2005-223535 A Japanese Patent Laid-Open No. 2004-4013 Japanese Patent Laid-Open No. 2004-214027
  • a fuel cell vehicle is equipped with a fuel cell system (including a hydrogen tank and piping) and a motor, generates electric power by the fuel cell system, and drives the motor to drive the drive wheels to travel. It is.
  • a fuel cell vehicle it is necessary to mount a hydrogen leakage sensor for detecting hydrogen and monitor the leakage of hydrogen from the fuel cell system.
  • a hydrogen leakage sensor for detecting hydrogen and monitor the leakage of hydrogen from the fuel cell system.
  • the hydrogen leak sensor and the control device for detecting hydrogen by the hydrogen leak sensor maintain the power supply, and hydrogen leaks even after the ignition is turned off. It needs to be detected.
  • the power source of the hydrogen leakage sensor and the control device is maintained for a long time even after the ignition is turned off, the amount of power stored in the control capacitor that supplies power to these sensors decreases. Therefore, the vehicle may not be able to run the next time when the vehicle is driven by turning on the ignition switch.
  • An object of the present invention is to make it possible to detect the hydrogen leaked from the fuel cell system during traveling even after the traveling is stopped, and to reduce the power consumption of the capacitor that generates the power supply for control.
  • a driving wheel, a motor that drives the driving wheel, a fuel cell system that generates electric power and supplies the electric power to the motor, and electric power generated by the fuel cell system are supplied to the motor.
  • a fuel cell vehicle comprising a battery that stores electricity to supply, a hydrogen leakage sensor that detects the presence or absence of hydrogen leaking from the fuel cell system, the fuel cell system and the battery are controlled, and the hydrogen
  • a first control unit that determines whether or not the hydrogen is leaked by a leakage sensor; a power storage unit that stores power to be supplied to the hydrogen leakage sensor and the first control unit; and when the ignition is turned off, Unless the hydrogen leak is detected by the hydrogen leak sensor, the hydrogen leak sensor and the first control from the power storage unit for a predetermined time period. Maintaining the power supply to, then a fuel cell vehicle, characterized in that it comprises a second control unit that stops the power supply.
  • Another aspect of the present invention is that in the form of (1), the fact that the hydrogen leak detector continues to detect hydrogen leaking from the fuel cell system after the ignition is turned off is the fact of the leak. It is further characterized by further comprising a first notifying unit for notifying.
  • (3) Another embodiment of the present invention is the configuration of (2), further comprising a storage amount detection sensor that detects a storage amount of the storage unit, wherein the second control unit is the storage amount detection sensor. When the detected power storage amount falls below a predetermined constant value, the power to the hydrogen leak sensor and the control unit is maintained during the predetermined constant time or during notification by the first notification unit. The supply is stopped.
  • the history storage unit stores a history of the fact of hydrogen leakage, and prohibits the vehicle from traveling.
  • the travel prohibition unit is further provided.
  • (1) it is possible to detect the hydrogen leaked from the fuel cell system during traveling of the fuel cell vehicle even after the traveling is stopped, and to reduce the power consumption of the capacitor that generates the control power source. Can be.
  • (2) it is possible to know that a person around the fuel cell vehicle is leaking hydrogen from the fuel cell system, and it is possible to respond appropriately.
  • FIG. 1 is a block diagram showing electrical connection of the fuel cell vehicle 1 according to the present embodiment.
  • the fuel cell vehicle 1 drives drive wheels 12 by a motor 11.
  • the fuel cell system 13 generates electric power.
  • the high voltage battery 14 stores the electric power generated by the fuel cell system 13.
  • the electric power generated by the fuel cell system 13 or the stored electric power of the high voltage battery 14 is converted into an alternating current by the inverter 15, and the motor 11 is driven by the alternating current power.
  • the hydrogen leakage sensor 16 is a sensor for detecting leakage of hydrogen used in the fuel cell system 13.
  • the 12V battery 21 is a battery for supplying a 12V DC power source 27 to each unit as a control power source, and constitutes a power storage unit.
  • the 12V battery 21 is charged via the DC / DC converter 22 using the high voltage battery 14 as a power source.
  • the voltage sensor 25 has a function as a charge amount detection sensor that detects the voltage of the 12V battery 21 and detects the charge amount of the 12V battery 21.
  • the vehicle controller 23 is a control device mainly composed of a microcomputer, and controls each part intensively.
  • the vehicle controller 23 can communicate with the fuel cell system 13, the high voltage battery 14, the inverter 15, and the like by CAN (Controller Area Network), and can control these devices.
  • the vehicle controller 23 implement
  • the vehicle controller 23 implement
  • the indicator 26 can display various messages to the driver by a control signal from the vehicle controller 23.
  • the outside buzzer 28 can generate a warning sound.
  • the vehicle outside buzzer 28 implements a first notification unit.
  • the indicator 26 implements a second notification unit.
  • the DC / DC relay 31 is a relay for connecting or disconnecting the line 32 connecting the high voltage battery 14 and the DC / DC converter 22. When the DC / DC relay 31 is turned on, the 12V battery 21 can be charged with the power of the high voltage battery 14.
  • the high voltage relay 33 is a relay for connecting or disconnecting between the line 34 and the line 32 that connect the fuel cell system 13 and the inverter 15. When the high voltage relay 33 is turned on, the high voltage battery 14 can be charged with the generated power of the fuel cell system 13 and the power of the high voltage battery 14 can be supplied to the motor 11. The high voltage relay 33 is turned on and off by outputting a control signal from the vehicle controller 23.
  • the self-holding relay 35 is a relay for supplying control power from the DC power supply 27 to the vehicle controller 23, the fuel cell system 13, the high voltage battery 14, the inverter 15, or the like, or stopping the supply.
  • the self-holding relay 35 is turned on / off by outputting a control signal from the vehicle controller 23.
  • the switching element 41 composed of a transistor is an element for turning on and off the self-holding relay 35.
  • the hydrogen leakage sensor 16 obtains electric power from the DC power supply 27 via the vehicle controller 23, is driven by a control signal from the vehicle controller 23, and is grounded via the vehicle controller 23. Further, the detection signal of the voltage sensor 25 is also taken into the vehicle controller 23. Next, the contents of the control executed by the vehicle controller 23 will be described. 2 and 3 are flowcharts showing the contents of the control.
  • the vehicle controller 23 controls the gate of the switching element 41 of the control signal.
  • the self-holding relay 35 is kept on (step S2), and the power source of the vehicle controller 23 is kept on.
  • whether or not hydrogen has leaked from the fuel cell system 13 at the hydrogen leak sensor 16 when the ignition switch 42 was previously turned off is stored as a history in the nonvolatile memory of the vehicle controller 23 (details will be described later).
  • the vehicle controller 23 reads out the history information, and displays a warning on the indicator 26 if a history indicating that hydrogen has leaked is recorded (step S2).
  • the alarm notification may be performed not only by displaying the indicator 26 but also by voice or the like.
  • the vehicle controller 23 determines whether or not there is a hydrogen leak in the fuel cell system 13 when the vehicle 1 was started last time based on the read history (step S3).
  • the vehicle controller 23 determines whether or not hydrogen leak in the fuel cell system 13 can be detected by the hydrogen leak sensor 16 (Step S4).
  • the vehicle controller 23 activates the entire system of the vehicle 1 and sets the vehicle 1 in a travelable state (Step S5). That is, the motor 11 can be driven by electric power supplied from the fuel cell system 13 and the high voltage battery 14.
  • step S3 when there was a hydrogen leak in the fuel cell system 13 at the previous start of the vehicle 1 (Y in step S3), or when a hydrogen leak was detected after turning on the ignition switch 42 (step (Y of S4), the vehicle controller 23 performs the display which warns of hydrogen leakage on the indicator 26 (step S6). In this case, the system of the vehicle 1 cannot be started (step S6). That is, the vehicle controller 23 disables the vehicle 1 from running by preventing the power supply from the fuel cell system 13 and the high voltage battery 14 to the motor 11.
  • the vehicle controller 23 records in the nonvolatile memory of the vehicle controller 23 the history of the occurrence of an abnormality that the hydrogen leak of the fuel cell system 13 has been detected. Then, the self-holding relay 35 is turned off by turning off the control signal to the switching element 41 (step S16), and the vehicle controller 23 itself is also turned off.
  • step S5 After the entire system of the vehicle 1 is activated and the vehicle 1 is allowed to travel (step S5), when hydrogen leakage is detected by the hydrogen leakage sensor 16 (Y in step S8), the vehicle controller 23 displays an indicator. A display to warn of hydrogen leakage is given to 26 (step S9). In this case, the vehicle controller 23 turns off the traveling system of the vehicle 1 so that the vehicle 1 cannot travel (step S9). That is, the vehicle controller 23 stops the motor 11 and stops power supply from the fuel cell system 13 and the high voltage battery 14 to the motor 11. After that, when the ignition switch 42 is turned off (Y in step S10), the vehicle controller 23 records in the nonvolatile memory of the vehicle controller 23 the history of the occurrence of an abnormality that the hydrogen leak of the fuel cell system 13 has been detected. Then, the self-holding relay 35 is turned off by turning off the control signal to the switching element 41 (step S16), and the vehicle controller 23 itself is also turned off.
  • the vehicle controller 23 turns off the ignition switch 42 (Y in Step S11) and then turns off the traveling system of the vehicle 1.
  • the vehicle 1 is brought into a state where it cannot travel (step S12). That is, the vehicle controller 23 stops the motor 11 and stops power supply from the fuel cell system 13 and the high voltage battery 14 to the motor 11.
  • the control signal is continuously transmitted from the vehicle controller 23 to the switching element 41 to maintain the self-holding relay 35 in the on state, thereby holding the power supply of the vehicle controller 23 (step S12).
  • the detection state of hydrogen leakage of the fuel cell system 13 by the hydrogen concentration sensor 16 is continued (step S12).
  • the vehicle controller 23 blows the buzzer 28 outside the vehicle to notify people around the fuel cell vehicle 1 ( Step S14). Thereafter, when the hydrogen leak in the fuel cell system 13 is no longer detected and the hydrogen leak has converged (Y in step S15), the vehicle controller 23 records the occurrence of an abnormality that the hydrogen leak in the fuel cell system 13 has been detected. Is stored in the non-volatile memory of the vehicle controller 23, the control signal to the switching element 41 is turned off to turn off the self-holding relay 35 (step S16), and the vehicle controller 23 itself is also turned off.
  • step S15 the vehicle controller 23 detects that the voltage of the 12V battery 21 detected by the voltage sensor 25 falls below a preset lower limit value. It is determined whether or not there is (step S17). When the voltage of the 12V battery 21 is lower than the preset lower limit value (Y in step S17), the vehicle controller 23 uses the occurrence of an abnormality that the hydrogen leak of the fuel cell system 13 has been detected as a history to the vehicle controller 23.
  • the self-holding relay 35 is turned off by storing in its own nonvolatile memory and turning off the control signal to the switching element 41 (step S16), and the vehicle controller 23 itself is also turned off.
  • step S13 if hydrogen leakage of the fuel cell system 13 is not detected in step S13 (N in step S13), the vehicle controller 23 has passed a predetermined time after turning off the traveling system in step S12. Whether or not (step S18).
  • this predetermined time has elapsed (Y in step S18)
  • the vehicle controller 23 stores in the nonvolatile memory of the vehicle controller 23 as a history that the hydrogen leak of the fuel cell system 13 has not been detected, and the switching element By turning off the control signal to 41, the self-holding relay 35 is turned off (step S16), and the vehicle controller 23 itself is also turned off.
  • Step S18 when the predetermined time has not elapsed (N in Step S18), the vehicle controller 23 proceeds to Step S13 until the voltage of the 12V DC power supply 27 falls below a predetermined lower limit value (Y in Step S19).
  • the hydrogen leak of the fuel cell system 13 is continuously detected (N in step S19). This certain time is a time required for hydrogen leak detection, and is calculated by conducting an experiment.
  • the vehicle controller 23 maintains the power supply to the vehicle controller 23 (step S12), even if the ignition switch 11 is turned off (Y in step S11), while the fuel cell system.
  • the power to the vehicle controller 23 is turned off (step S16). Therefore, it is possible to reduce the power consumption of the 12V battery 21 that generates the control DC power supply 27 while allowing the hydrogen generated from the fuel cell system 13 during the traveling of the fuel cell vehicle 1 to be detected even after the traveling is stopped. Can be.
  • the vehicle controller 23 detects a hydrogen leak (Y in step S13), as long as the hydrogen leak does not converge, in principle, a warning of the occurrence of hydrogen leak is notified to the people around the fuel cell vehicle 1 (step S14). 15), the passengers can know that hydrogen is leaking from the fuel cell system 13, and can respond appropriately. Further, even during this alarm (N in Steps S14 and S15), the vehicle controller 23, when the voltage of the 12V battery 21 is below the preset lower limit (Y in Step S17), Since the power to 23 is also turned off, overdischarge of the 12V battery 21 can be prevented.
  • the vehicle controller 23 stores the fact of hydrogen leakage as a history (step S16) and displays it as an alarm on the indicator 26 (step S2). Can be notified to the occupant. Further, even if the hydrogen leakage from the fuel cell system 13 generated during the traveling of the vehicle 1 once converges, there is a high possibility that the hydrogen leakage will occur again if the traveling of the vehicle 1 is started. Therefore, if there is a fact of hydrogen leakage while the ignition switch 42 is turned off after starting the vehicle 1 last time (Y in step S3), the vehicle controller 23 prevents the vehicle from running (step S6), The recurrence of leakage can be prevented.
  • the vehicle controller 23 drives the self-holding relay 35 for a certain period of time (step S18).
  • a capacitor is provided, and the capacitor is charged by the 12V battery 21 or the like. This may be used as a power source for the vehicle controller 23 after the ignition switch 42 is turned off. This is because if the capacitor is consumed after the ignition switch 42 is turned off, the vehicle controller 23 is turned off and the 12V battery 21 is not further consumed.
  • the same control can be performed using the 12V power source stepped down from the high voltage battery 14. .
  • the same control can be performed using 12V that is stepped down from the high voltage battery 14.

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  • Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel Cell (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
PCT/JP2012/079238 2012-02-02 2012-11-12 燃料電池車両 Ceased WO2013114699A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE112012005804.6T DE112012005804B4 (de) 2012-02-02 2012-11-12 Brennstoffzellenfahrzeug
CN201280068027.3A CN104066612B (zh) 2012-02-02 2012-11-12 燃料电池车辆
JP2013556200A JP5817848B2 (ja) 2012-02-02 2012-11-12 燃料電池車両
US14/363,006 US9108529B2 (en) 2012-02-02 2012-11-12 Fuel cell vehicle
GB1407102.1A GB2512756B (en) 2012-02-02 2012-11-12 Fuel cell vehicle
IN4875CHN2014 IN2014CN04875A (en:Method) 2012-02-02 2012-11-12

Applications Claiming Priority (2)

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JP2012-021006 2012-02-02
JP2012021006 2012-02-02

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JP (1) JP5817848B2 (en:Method)
CN (1) CN104066612B (en:Method)
DE (1) DE112012005804B4 (en:Method)
GB (1) GB2512756B (en:Method)
IN (1) IN2014CN04875A (en:Method)
WO (1) WO2013114699A1 (en:Method)

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DE112012005804B4 (de) 2021-08-12
US9108529B2 (en) 2015-08-18
CN104066612A (zh) 2014-09-24
GB2512756B (en) 2016-09-28
IN2014CN04875A (en:Method) 2015-09-18
JP5817848B2 (ja) 2015-11-18
CN104066612B (zh) 2016-07-06
GB2512756A (en) 2014-10-08
DE112012005804T5 (de) 2014-10-16
JPWO2013114699A1 (ja) 2015-05-11
GB201407102D0 (en) 2014-06-04

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