WO2008072793A1 - 燃料電池システム及び燃料電池システムの起動方法 - Google Patents
燃料電池システム及び燃料電池システムの起動方法 Download PDFInfo
- Publication number
- WO2008072793A1 WO2008072793A1 PCT/JP2007/074602 JP2007074602W WO2008072793A1 WO 2008072793 A1 WO2008072793 A1 WO 2008072793A1 JP 2007074602 W JP2007074602 W JP 2007074602W WO 2008072793 A1 WO2008072793 A1 WO 2008072793A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- turned
- cell system
- power
- switch
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
- H01M16/006—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers of fuel cells with rechargeable batteries
-
- 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
-
- 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
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/31—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for starting of 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
- 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
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
-
- 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
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/34—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by heating
-
- 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
-
- 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
- H01M8/04225—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 during start-up
-
- 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
-
- 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
- H01M8/04925—Power, energy, capacity or load
-
- 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
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
- 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
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Definitions
- the present invention relates to a fuel cell system and a fuel cell system activation method, and more particularly to a fuel cell system that supplies power to a load at the time of activation and a fuel cell system activation method.
- a fuel cell is installed in a vehicle because it has little impact on the environment.
- the fuel cell is a fuel cell stack in which a plurality of single cells are combined, so that a desired voltage and current can be taken out.
- the fuel cell supplies a fuel gas such as hydrogen to the anode side of the fuel cell stack, supplies an oxidizing gas containing oxygen such as air to the cathode side, and the like at an appropriate temperature. Necessary electric power can be taken out by electrochemical reaction through the electrolyte membrane.
- the fuel cell system is operated by a fuel cell auxiliary machine such as a pump that supplies fuel gas, an air compressor (ACP) that supplies oxidizing gas, and a cooling water circulation pump that controls the temperature of the fuel cell stack.
- a sensor such as a cell monitor that detects the voltage, temperature, etc. of each unit cell constituting the fuel cell stack is required.
- it is necessary to supply power to these auxiliary machines, and consideration is given to the timing.
- the fuel cell resistance measurement is performed after IG is turned on, the resistance of the fuel cell is measured, and then READY is set to supply power to the mobile phone.
- An apparatus is disclosed.
- the Japanese International Publication No. 0 3/0 9 6 0 1 pamphlet discloses that the gas sensor is turned on and off from IG on, and then fuel gas is supplied to generate electricity. ing.
- Japanese Unexamined Patent Application Publication No. 2 0 0 4-1 7 8 9 9 8 describes that when a start switch corresponding to an ignition switch is turned on as a control device for a fuel cell vehicle, Close the switch (ON), measure the temperature and cell voltage of the fuel cell, and if these are low, turn the power from the fuel cell to the auxiliary machine to start the dredging, then close the main switch (ON) And supplying electric power to the motor.
- a load such as an auxiliary device for the fuel cell.
- the power is supplied from a power source other than the fuel cell, that is, a power storage device such as a low-voltage battery. Therefore, when the capacity of a power storage device such as a secondary battery is small or the state of charge is not sufficient, the power supply to the load at the start of the fuel cell system cannot be sufficiently performed, or at that stage The state of charge of the battery will drop considerably.
- Japanese Laid-Open Patent Publication No. 2 0 0 5-3 3 2 7 0 2 and Japanese International Publication No. 0 3/0 9 6 0 0 1 pamphlet resistance measurement is performed prior to start-up, and Although it is described that power is supplied in the evening, there is no mention of limiting the power supplied from the power storage device at startup.
- Japanese Laid-Open Patent Publication No. 2 0 0 4-1 7 8 9 9 8 describes the limitation of power or the suppression of power consumption, all of which relate to the power of the fuel cell itself, from the power storage device. There is no mention of power supply restrictions.
- the use state of the power storage device is not studied as a restriction on power supply to the load at the time of starting the fuel cell system.
- An object of the present invention is to provide a fuel cell system and a fuel cell system activation method capable of suppressing power consumption of a power storage device at the time of activation of the fuel cell system. Another object is to provide a fuel cell system and a method for starting the fuel cell system that can suppress power supply to the load at the time of starting the fuel cell system. The following measures contribute to at least one of these objectives. Disclosure of the invention
- the fuel cell system according to the present invention shifts to the first control state when instructed to shift to the first control state in the second control state that is the standby state of the first control state.
- the reduction instruction is preferably input when the state of the fuel cell system reaches a predetermined condition.
- the fuel cell system instructs the first operating element that instructs the start of the control system that is the first control state, and the transition to the travelable state by the fuel cell that is the second control state.
- Power consumption suppression means for stopping the power supply from the power storage device to the auxiliary equipment for the fuel cell for a period from when the second operating element is turned on after the elapse of time.
- the said power consumption suppression means stops the electric power supply from the said electrical storage apparatus to the fluid pump for the said fuel cells.
- the said power consumption suppression means further stops the electric power supply from the said electrical storage apparatus to the cell monitor which monitors the state of the said fuel cell.
- the fuel cell system includes: a first operating element that gives an instruction to supply power to an auxiliary machine for the fuel cell through a transmission line as an instruction to start the fuel cell; and a power generation state of the fuel cell.
- a first operating element that gives an instruction to supply power to an auxiliary machine for the fuel cell through a transmission line as an instruction to start the fuel cell
- a power generation state of the fuel cell In a waiting period from when the first operator is turned on to when the second operator is turned on, arbitrarily after the first operator is turned on.
- Power consumption suppression means for stopping power supply from the power transmission line for a period from when the set standby period has elapsed until the second operator is turned on.
- the method for starting the fuel cell system includes a step of starting the control controller when the first operator is turned on, and a transition to a travelable state by the fuel cell.
- the fuel cell system has an operation element that instructs the start of the second control state that shifts to the first control state when the shift to the first control state is instructed, In the second control state, the power consumption at the standby load is reduced by inputting a reduction instruction to reduce the power consumption to the load.
- the fuel cell system includes a first operating element that instructs to start the control system, A second operating element for instructing a transition to a travelable state by the fuel cell, and during the waiting period from when the first operating element is turned on until the second operating element is turned on, The power supply from the power storage device to the auxiliary equipment for the fuel cell is stopped for a period from when the arbitrarily set standby period elapses after the child is turned on until the second operator is turned on.
- the fuel cell system is started, it is possible to suppress wasteful power consumption of the power storage device until the second operator is turned on.
- power consumption suppression means power supply from the power storage device to the fluid pump for the fuel cell is stopped. More preferably, the power supply from the power storage device to the cell monitor that monitors the state of the fuel cell is stopped. Since it is not instructed to shift to the travelable state by the fuel cell until the second operation element is turned on, the above configuration can suppress wasteful power consumption of the power storage device.
- the fuel cell system has a first operating element that gives an instruction to supply power to the auxiliary equipment for the fuel cell through a transmission line as an instruction to start the fuel cell, and the fuel cell And a second operating element for instructing the transition to the power generation state, and in a standby period from when the first operating element is turned on to when the second operating element is turned on.
- the period from the time when the first controller is turned on to the time when the second controller is turned on after the arbitrarily set standby period elapses from the transmission line to the auxiliary equipment for the fuel cell. Stop power supply.
- FIG. 1 is a configuration diagram of a fuel cell system according to an embodiment of the present invention.
- FIG. 2 is a diagram showing details of blocks related to the 14 V battery in the fuel cell system according to the embodiment of the present invention.
- FIG. 3 is a flowchart showing a procedure for suppressing power consumption when the fuel cell system is started in the embodiment according to the present invention.
- FIG. 4 is a time chart showing the on / off timing of each switch of the fuel cell system in the embodiment according to the present invention.
- the fuel cell system is configured with a bidirectional voltage converter between the fuel cell stack and the secondary battery pack.
- an element having a power distribution function is provided.
- a secondary battery pack, and the power distributor may supply power to the load.
- 14 VDC / DC comparator, 14 V battery, system main relay, etc. are included in the components of the fuel cell system, but some of these elements are omitted. It may be a system. Also, this is a system with other elements added.
- a 14 V battery is used as the power source to supply to the load such as an auxiliary device for the fuel cell.
- any power source other than the fuel cell may be used. Good.
- a low-voltage battery other than 14 V may be used, and in some cases, a high-voltage secondary battery may be used.
- a power storage means such as a capacitor may be used.
- the secondary battery or power storage device broadly refers to a power storage means that can be charged and discharged, such as a battery and a capacitor.
- the power source supplied to the auxiliary equipment for the fuel cell is a power storage device in a broad sense.
- the fuel cell is described as being mounted on a vehicle, it may be a stationary fuel cell. In this case, as means for supplying electric power to the load other than the fuel cell, electric power may be supplied from the outside via a transmission line called a grid.
- FIG. 1 is a configuration diagram of the fuel cell system 10.
- Fuel cell system 1 0 is a high voltage secondary battery 1 2, system main relay 1 4, 14 VDC / DC comparator 1 6, high voltage secondary battery side smoothing capacitor 1 8, voltage converter 20, a fuel cell-side smoothing capacitor 22, and a fuel cell stack 24.
- the output of the 14 V DC C DC converter 16 is connected to the 14 V battery 26.
- the contents of block 30 related to 14 V battery 26 will be described in detail later with reference to FIG.
- the MZ G inverter 8 is connected between the positive and negative buses on the fuel cell side, and the MZ G inverter 8 is for vehicles.
- Motor generator (MZ G) 6 is connected.
- High-voltage secondary battery 1 2 is a combination of multiple lithium-ion cells or multiple nickel-hydrogen cells, resulting in a high-voltage battery of about 2800 V to 400 V, for example, about 2 88 V This is a battery pack.
- the system main relay 14 is a relay for turning on and off the high voltage power line on the high voltage secondary battery 12 side. Considering relay welding when cutting off high-voltage power, one relay is provided on each of the positive and negative buses. In addition, another relay with a current limiting resistor is installed on either side of the bus. This relay with a current limiting resistor has a function of turning it on and gradually charging it.
- VDC ZDC converter 16 is a voltage converter that adjusts high voltage power to a low voltage of 14 V and supplies it to a 14 V battery 26 that is a low voltage power supply. In the case of bi-directional operation, the power from the 14 V battery 26 can be returned to the high voltage side in case of an emergency.
- the high voltage secondary battery side smoothing capacitor 18 has a large capacity that has the function of absorbing fluctuations in the voltage between the positive and negative electrode buses on the high voltage secondary battery 1 2 side and suppressing pulsation as DC power. It is a capacitor.
- the voltage converter 20 is a high voltage having a function of performing voltage conversion between the high voltage power on the high voltage secondary battery side and the high voltage power on the fuel cell stack 24 side to exchange power. Bidirectional voltage converter for use.
- the fuel cell-side smoothing capacitor 22 is a large-capacity capacitor having a function of absorbing fluctuations in the voltage between the positive and negative electrode buses on the fuel cell side and suppressing pulsation as DC power.
- the fuel cell stack 24 is configured to take out a high voltage of about 20 to 40 V, for example, about 2 8 8 V, by combining a plurality of unit cells called fuel cells. It is a kind of assembled battery.
- each fuel battery cell supplies hydrogen as a fuel gas to the anode side, supplies air as an oxidizing gas to the force sword side, and is necessary for battery chemical reaction through an electrolyte membrane that is a solid polymer membrane. It has a function to extract electric power.
- a load such as a fuel cell auxiliary machine described later.
- hydrogen is supplied to the fuel cell stack 24 from a hydrogen storage device (not shown).
- a hydrogen storage device a hydrogen tank, a hydrogen storage alloy, or the like can be used.
- FIG. 2 is a diagram showing details of the block 30 related to the 14 V battery 26 in the fuel cell system 10.
- the 14 battery 26 is a low voltage secondary battery constituted by a lead storage battery or the like, that is, a power storage device. In the following, description will be made using the symbols in FIG.
- FC is an abbreviation of Fuel C e 1 1 and indicates a fuel cell.
- the FC auxiliary equipment 4 4 is connected between the positive and negative buses in the arrangement between the fuel cell side smoothing capacitor 2 2 and the fuel cell stack 2 4. 6 and a high voltage power supply from the fuel cell stack 24 side.
- 1 4 V battery 2 6 and each of these groups are connected with IG switch 3 2, accessory switch 3 4, switch 3 6, FC inverter Evening switch 3 8 will be provided.
- Accessories etc. 40 is a group of a plurality of elements such as a writer, audio, navigation device, etc. mounted on the vehicle.
- 1 Accessory switch 3 4 is provided between 4 V battery 2 6 and accessory 4 0.
- the accessory switch 3 4 is provided with an operation unit in the passenger compartment. When the operation unit is operated by a driver or the like and the accessory switch 3 4 is turned on, power is supplied to the accessory 40 or the like. Can be used.
- the controller 4 2 is a group that can be divided into a sensor 'air conditioner 4 6 and a controller 4 8.
- the sensor is for detecting the state of each element in the fuel cell system 10.
- 4 includes a flow meter for the fuel gas supplied to 4, a flow meter for the oxidizing gas, a water temperature meter for the cooling water, and so on.
- Air conditioners and the like include fans, heat sinks and refrigerant circulation pumps used for air conditioning in the passenger compartment.
- the controller 48 has a function of generally controlling the operation of each element of the fuel cell system 10, particularly a function of performing start control of the fuel cell system 10.
- a controller 48 can be composed of an in-vehicle computer.
- the in-vehicle computer can be configured with a chip of a microphone processor.
- the controller 48 can be composed of an independent computer, but its function can be used for other in-vehicle computers.
- the function of the controller 48 may be given to the hybrid CPU.
- the controller 4 8 has a power supply system control module 4 9 that controls the entire operation of the fuel cell system 10 and, in particular, an FC start command module 5 0 that gives a start command to the FC auxiliary equipment 4 4 etc.
- a power consumption suppression module 51 that controls the operation of the switch 38, which will be described later, and suppresses power consumption at startup.
- IG switch 3 2 is provided between 4 V battery 2 6 and controller 4 2.
- IG is an abbreviation for IG nition, which originally means ignition of an internal combustion engine, and is not necessarily an appropriate term in the fuel cell system 10, but for those skilled in the art, speaking of an innovation switch, It has been used for many years to mean an activation switch. Therefore, here too, the term IG switch is used as it is for the operator as the vehicle start switch.
- the IG switch 3 2 is provided with an operation section in the passenger compartment. When the operation section is operated by a driver or the like and the IG switch 3 2 is turned on, power is supplied to the controller 4 2 or the like. 8 starts and the fuel cell system control program is launched.
- the IG switch 3 2 is a switch for instructing activation of the vehicle control system, and is a switch that is first operated by a driver or the like when the vehicle is activated. In particular, it can be called the first switch or the first operator.
- the accessory switch 3 4 is provided separately from the IG switch 3 2. However, the accessory switch 3 4 is activated at the same time as the IG switch 3 2. 2 and accessories 40 may be launched.
- a start switch 3 6 is provided between the 14 V battery 2 6 and the controller 4 8. As shown in Figure 2, the ON / OFF signal 5 2 of the start switch 3 6 is transmitted to the controller 48, and when the controller 4 8 detects that the switch 3 6 is turned on, the FC With the function of the start command module 50, the FC start command signal 54 is output to the FC auxiliary equipment 44.
- the start switch 3 6 is provided with an operation section in the passenger compartment. When the operation section is operated by the driver or the like and the start switch 3 6 is turned on, the FC auxiliary machine 4 4 Start command signal 54 is output. When the FC start command signal 5 4 is output to the FC auxiliary machine 4 4, the FC auxiliary machine 4 4 is started on the assumption that other necessary conditions are satisfied.
- the start switch 3 6 is a switch that is operated next by the driver or the like after the IG switch 3 2 is turned on, it is distinguished from other switches, in particular, the second switch or This can be called the second operator.
- the auxiliary equipment for FC 4 4 is an electrical device used to operate the fuel cell stack 2 4.
- an air compressor (ACP) 70 that compresses oxidant gas and supplies it to the fuel cell stack 24, hydrogen, a hydrogen pump 7 that feeds hydrogen, which is fuel gas, into the fuel cell stack 24 2.
- ACP air compressor
- each inverter circuit 60, 62, 64 for driving these is included.
- a cell monitor that monitors the voltage, temperature, etc. of each unit cell constituting the fuel cell stack 24
- F C auxiliary machines 4 4 are also included in F C auxiliary machines 4 4 as electrical equipment used to operate the fuel cell stack 2 4.
- FC inverter switch 3 8 is provided between the 4 V battery 2 6 and the FC auxiliary machine 4 4. As shown in Fig. 2, FC inverter switch 38 supplies or supplies 14 V battery 26 power to inverter circuit 60, 62, 64 and cell monitor 66. This switch has a function of stopping the operation. Unlike the other IG switch 3 2, accessory switch 3 4, and start switch 3 6 described in Fig. 2, the FC inverse switch 3 8 consumes the controller 4 8 regardless of the driver's operation. It is controlled by the function of the power suppression module 51. Here, the function content of the power consumption suppression module 51 will be described. Power consumption suppression module 5 1 is based on the ON / OFF signal of IG switch 3 2 and the ON / OFF signal of switch 3 6.
- FC inverter switch 3 8 ON / OFF control signal 5 6 is output.
- the first switch, IG switch 3 2 In the waiting period from when the first switch is turned on until the start switch 36 is turned on, the second switch is turned on after an arbitrarily set waiting period has passed since the first switch was turned on. It has a function to stop the power supply from the 14 V battery 26 to the FC auxiliaries, etc. 4 until it is turned on.
- the IG switch 3 2 that is the first operator is a switch that gives an instruction to start the vehicle
- the start switch 3 6 that is the second operator is a transition to the vehicle travelable state by the fuel cell. It is a switch that indicates Now, let the vehicle runnable state be the first control state, and the standby state of the first control state, that is, the standby state of shifting to the first control state when an instruction to shift to the first control state is input
- IG switch 32 which is the first operator, is an operator for instructing the start of the second control state
- start switch 36 which is the second operator, is the first controller. This is an operator that instructs the transition to the 1 control state.
- the on / off control signal 56 output from the power consumption suppression module 51 is supplied to a load such as an FC auxiliary machine 44 under a predetermined condition in the standby state that is the second control state.
- This is a means for outputting a reduction instruction for reducing the power consumption of the device. That is, here, after the IG switch 3 2 that is the first operator is turned on and enters a standby state, the start switch 3 6 that is the second operator is turned on and an instruction to move to the runnable state is issued. In this waiting period, the on / off control signal 56 is turned off under the predetermined condition that a waiting period arbitrarily set after the first switch is turned on passes. The on / off control signal 56 turns off as a reduction instruction to reduce power consumption to the load.
- the FC auxiliary machinery 4 4 is an electrical device used to operate the fuel cell stack 24. Therefore, it is not necessary to start until the start switch 36 is turned on by an operation of the driver or the like and an instruction to shift to the vehicle travelable state by the fuel cell is instructed. If this is to start FC auxiliary equipment 4 4 when IG switch 3 2 is turned on, if start switch 3 6 is turned on immediately after that, it is possible to shift to the vehicle ready state at an early stage. However, if the start switch 3 6 is not turned on for a while after the IG switch 3 2 is turned on, the operation of the FC auxiliary machine 4 4 during that time becomes useless.
- IG Switch 3 2 When the switch is turned on, it waits for the start switch 3 6 to be turned on to start up the 4 4, but if the elapsed time from the on of the IG switch 3 2 is long, the FC auxiliary machine 4 once Stop supplying power to 4 and wait for the start switch 3 6 to turn on, then restart supplying power to the FC auxiliary equipment 4 4. As a result, when the fuel tank system 10 is started, the power consumed by the 4 V battery 2 6 is wasted by the FC auxiliary equipment 4 4 until the start switch 3 6 as the second switch is turned on. Can be suppressed.
- FIG. 3 is a flowchart showing a procedure for suppressing power consumption when the fuel cell system 10 is started. Each of these procedures corresponds to each processing procedure of the power consumption suppression program included in the corresponding fuel cell system control program.
- FIG. 4 is a time chart showing the on / off timing of each switch of the fuel cell system 10. In Fig. 4, the horizontal axis shows the time with the same origin, and the vertical axis shows on / off of each switch.
- the first step in the procedure for suppressing power consumption when starting up the fuel cell system 10 is to determine whether or not the IG switch 3 2 is turned on (S 10).
- the process of S 1 0 is repeated until it is determined that the IG switch 3 2 is turned on.
- the FC inverter evening switch 3 8 is turned on (S 1 2 )
- These functions are actually turned on at the same time as the controller 48 starts up when the power of the 14 V battery 2 6 is supplied to the controller 48, or at the same time. This is executed by outputting the off control signal 5 6 to the FC imperial switch 3 8 as an on signal. As a result, the auxiliary equipment for FC etc. 4 4 are activated.
- the start switch 36 is turned on (S 14). Normally, since the start switch 3 6 is not turned on at the same time as the IG switch 3 2 is turned on, the elapsed time t after the IG switch 3 2 is turned on is set as a predetermined waiting time t. (S 1 6). Wait time t. Can be set arbitrarily, but can be set to 5 sec, for example. Elapsed time t is standby time t. When is less than Return to S 1 4.
- Elapsed time t is standby time t. If it is determined that the switch 3 6 is turned on before reaching (S 1 4), the procedure of FIG. 3 ends. In other words, the FC Inverter evening switch 3 8 remains on. When the elapsed time t reaches the standby time t 0 before it is determined that the start switch 3 6 is turned on, the FC inverter evening switch 3 8 is turned off (S 1 8). This is shown in Figure 4. This function is executed by outputting the on / off control signal 56 as an off signal to the FC inverter 38 by the function of the power consumption suppression module 51 of the controller 48. As a result, the power supply from the 14 V battery 26 is stopped for the FC auxiliary machines 4 4.
- the second control state which is the standby state of the first control state
- the second control state that shifts to the first control state is opened.
- the power consumption at the standby load can be reduced by inputting a reduction instruction for reducing the power consumption at the load.
- the transition from the second control state to the first control state from the standby state in which the power source of the fuel cell storage device or the like and the vehicle driving motor are electrically disconnected, they are electrically
- a switching element such as a relay is used for electrical connection and disconnection as described above.
- the driving acceleration Even if an operation is input from an accelerator operator such as an accelerator pedal, the driving motor is driven in accordance with the operation of the accelerator operation from the second control state as a standby state in which the driving motor is not driven and acceleration is not generated.
- a transition to the first control state such as a driving mode to be driven may be made.
- the transition from the second control state to the first control state can be input via a so-called shift lever or the like that specifies the travel mode.
- the fuel cell is not supplied with fuel gas or oxidant gas and is not in the power generation state, and the fuel cell is supplied with fuel gas and oxidant gas to the first control state where the fuel cell is in the power generation state. It may be a transition. According to such a configuration, even in a stationary fuel cell, power can be saved under a predetermined condition.
- the first control state and the second control state are used in a broad sense including the system control state, the control state of the traveling mechanism, the power generation control state, and the like.
- the transition from the second control state to the first control state is continuous, such as when the state transitions or when the state transitions, in addition to shifting from one state to another state. It can include changes in state.
- the second operation element is turned on and a standby state is issued until an instruction to shift to the runnable state is issued.
- the predetermined condition was that a waiting period arbitrarily set after the first switch was turned on during the period.
- an instruction to reduce power at the load is input when the state of the fuel cell system reaches a predetermined condition.
- the predetermined condition in addition to the cumulative time after the transition to the second control state reaches the predetermined time, power is supplied to the load during the second control state. It is possible to detect the amount of electricity stored in the electricity storage device and issue an instruction to reduce the power when the amount of electricity stored has decreased to a predetermined amount.
- the standby state of the first control state is the first control state according to the instruction. This is a control mode that can be transferred to. It is preferable to limit the case where the transition to the first control state is possible only when the state is in the second control state. That is, the first control state may be configured to be able to shift only through the second control state. '' Industrial applicability
- the fuel cell system and the fuel cell system activation method according to the present invention can be used for a fuel cell system mounted on a vehicle or the like, a stationary fuel cell system, or the like.
Landscapes
- Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/446,509 US9048500B2 (en) | 2006-12-15 | 2007-12-14 | Fuel cell system with controlled standby power |
CN2007800446148A CN101627497B (zh) | 2006-12-15 | 2007-12-14 | 燃料电池系统和燃料电池系统的启动方法 |
DE112007002656.1T DE112007002656B4 (de) | 2006-12-15 | 2007-12-14 | Brennstoffzellensystem und Brennstoffzellensystemstartverfahren |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-337748 | 2006-12-15 | ||
JP2006337748A JP5109362B2 (ja) | 2006-12-15 | 2006-12-15 | 燃料電池システム及び燃料電池システムの起動方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008072793A1 true WO2008072793A1 (ja) | 2008-06-19 |
Family
ID=39511793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/074602 WO2008072793A1 (ja) | 2006-12-15 | 2007-12-14 | 燃料電池システム及び燃料電池システムの起動方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9048500B2 (ja) |
JP (1) | JP5109362B2 (ja) |
KR (1) | KR101109713B1 (ja) |
CN (1) | CN101627497B (ja) |
DE (1) | DE112007002656B4 (ja) |
WO (1) | WO2008072793A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009044953A (ja) * | 2007-07-18 | 2009-02-26 | Honda Motor Co Ltd | 発電装置を搭載した自動車 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009051252A1 (ja) * | 2007-10-17 | 2009-04-23 | Toyota Jidosha Kabushiki Kaisha | 燃料電池システム |
JP4380766B2 (ja) | 2007-10-17 | 2009-12-09 | トヨタ自動車株式会社 | 燃料電池システム |
US8150671B2 (en) * | 2009-04-30 | 2012-04-03 | GM Global Technology Operations LLC | Portable USB power mode simulator tool |
JP5392166B2 (ja) * | 2010-04-02 | 2014-01-22 | トヨタ自動車株式会社 | 燃料電池システム |
KR101305759B1 (ko) | 2011-10-27 | 2013-09-06 | 엘에스산전 주식회사 | 전기자동차의 전원 공급 시스템 |
JP6197764B2 (ja) | 2014-08-08 | 2017-09-20 | トヨタ自動車株式会社 | 電動車両 |
KR101637833B1 (ko) * | 2015-05-18 | 2016-07-07 | 현대자동차주식회사 | 연료전지 스택 성능 회복 방법 및 장치 |
JP6329202B2 (ja) * | 2016-06-08 | 2018-05-23 | 本田技研工業株式会社 | 燃料電池車両及びその起動方法 |
KR101846687B1 (ko) * | 2016-07-21 | 2018-04-09 | 현대자동차주식회사 | 연료전지 차량의 재시동 시스템과 제어기 및 재시동 방법 |
KR102399476B1 (ko) * | 2017-05-23 | 2022-05-17 | 현대자동차주식회사 | 연료전지의 시동 제어방법 및 시스템 |
DE102020112830A1 (de) * | 2020-05-12 | 2021-11-18 | Bayerische Motoren Werke Aktiengesellschaft | Steuereinheit und Verfahren zum Betrieb eines Druckbehälter-Ventils eines Druckbehälters |
CN114597453B (zh) * | 2020-12-03 | 2023-11-10 | 中国科学院大连化学物理研究所 | 一种燃料电池系统的热待机运行控制方法、燃料电池系统、存储介质以及电子装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002050378A (ja) * | 2000-08-07 | 2002-02-15 | Mitsubishi Electric Corp | 電気自動車用燃料電池の起動制御装置 |
JP2004022460A (ja) * | 2002-06-19 | 2004-01-22 | Nissan Motor Co Ltd | 燃料電池車両の起動制御装置 |
JP2004192820A (ja) * | 2002-12-06 | 2004-07-08 | Toyota Motor Corp | 燃料電池自動車 |
JP2005073464A (ja) * | 2003-08-27 | 2005-03-17 | Toyota Motor Corp | 燃料電池車両の始動装置及び始動方法 |
JP2005229706A (ja) * | 2004-02-12 | 2005-08-25 | Toyota Motor Corp | 車両の制御装置 |
JP2006114364A (ja) * | 2004-10-15 | 2006-04-27 | Toyota Motor Corp | 電源制御装置、電源制御方法及び電源制御装置を備えた車両 |
JP2006333552A (ja) * | 2005-05-23 | 2006-12-07 | Toyota Motor Corp | 電源システム |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10028331C2 (de) | 2000-06-05 | 2002-11-07 | Vodafone Ag | Brennstoffzellensystem und Verfahren zum Hochfahren eines Brennstoffzellensystems sowie Verwendung des Brennstoffzellensystems |
DE10028329C2 (de) | 2000-06-05 | 2003-06-26 | Atecs Mannesmann Ag | Brennstoffzellensystem und Verfahren zum Ein-/Abschalten eines Brennstoffzellensystems |
DE10059416A1 (de) | 2000-11-30 | 2002-06-13 | Xcellsis Gmbh | Vorrichtung und Verfahren zum Starten eines Fahrzeugs |
JP4267570B2 (ja) | 2002-05-14 | 2009-05-27 | 本田技研工業株式会社 | ヒータ内蔵型ガスセンサの作動開始方法および作動停止方法 |
JP3879635B2 (ja) | 2002-09-06 | 2007-02-14 | 日産自動車株式会社 | 移動体用燃料電池パワープラントシステム |
JP3935056B2 (ja) | 2002-11-27 | 2007-06-20 | 本田技研工業株式会社 | 燃料電池車両の制御装置 |
JP2004192172A (ja) | 2002-12-10 | 2004-07-08 | Hitachi Ltd | 情報処理装置の電力制御方式 |
DE10258865B4 (de) | 2002-12-17 | 2019-12-12 | Robert Bosch Gmbh | Brennstoffzellenanlage mit einer Startvorrichtung |
JP4480965B2 (ja) | 2003-07-30 | 2010-06-16 | 株式会社リコー | 画像形成装置 |
JP4720105B2 (ja) | 2004-05-20 | 2011-07-13 | 日産自動車株式会社 | 燃料電池診断装置及び燃料電池診断方法 |
CN101156270B (zh) * | 2005-02-25 | 2011-05-18 | 日本电气株式会社 | 燃料电池系统 |
-
2006
- 2006-12-15 JP JP2006337748A patent/JP5109362B2/ja not_active Expired - Fee Related
-
2007
- 2007-12-14 CN CN2007800446148A patent/CN101627497B/zh not_active Expired - Fee Related
- 2007-12-14 KR KR1020097012181A patent/KR101109713B1/ko active IP Right Grant
- 2007-12-14 DE DE112007002656.1T patent/DE112007002656B4/de not_active Expired - Fee Related
- 2007-12-14 US US12/446,509 patent/US9048500B2/en not_active Expired - Fee Related
- 2007-12-14 WO PCT/JP2007/074602 patent/WO2008072793A1/ja active Search and Examination
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002050378A (ja) * | 2000-08-07 | 2002-02-15 | Mitsubishi Electric Corp | 電気自動車用燃料電池の起動制御装置 |
JP2004022460A (ja) * | 2002-06-19 | 2004-01-22 | Nissan Motor Co Ltd | 燃料電池車両の起動制御装置 |
JP2004192820A (ja) * | 2002-12-06 | 2004-07-08 | Toyota Motor Corp | 燃料電池自動車 |
JP2005073464A (ja) * | 2003-08-27 | 2005-03-17 | Toyota Motor Corp | 燃料電池車両の始動装置及び始動方法 |
JP2005229706A (ja) * | 2004-02-12 | 2005-08-25 | Toyota Motor Corp | 車両の制御装置 |
JP2006114364A (ja) * | 2004-10-15 | 2006-04-27 | Toyota Motor Corp | 電源制御装置、電源制御方法及び電源制御装置を備えた車両 |
JP2006333552A (ja) * | 2005-05-23 | 2006-12-07 | Toyota Motor Corp | 電源システム |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009044953A (ja) * | 2007-07-18 | 2009-02-26 | Honda Motor Co Ltd | 発電装置を搭載した自動車 |
Also Published As
Publication number | Publication date |
---|---|
DE112007002656T5 (de) | 2009-10-29 |
US20100310953A1 (en) | 2010-12-09 |
CN101627497A (zh) | 2010-01-13 |
JP2008152984A (ja) | 2008-07-03 |
KR101109713B1 (ko) | 2012-03-02 |
CN101627497B (zh) | 2012-06-13 |
JP5109362B2 (ja) | 2012-12-26 |
DE112007002656B4 (de) | 2020-08-06 |
US9048500B2 (en) | 2015-06-02 |
KR20090082281A (ko) | 2009-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5109362B2 (ja) | 燃料電池システム及び燃料電池システムの起動方法 | |
US8859158B2 (en) | System and method for controlling operation of fuel cell hybrid system by switching to battery power in response to idle stop condition | |
US8008801B2 (en) | Vehicle power supply device | |
JP3911435B2 (ja) | 電源システムおよびその制御方法 | |
CN101809797B (zh) | 燃料电池系统 | |
CN110015211B (zh) | 一种混合动力汽车燃料电池系统的控制方法 | |
JP4724207B2 (ja) | 燃料電池車両 | |
CN102598380B (zh) | 燃料电池系统及其控制方法 | |
JP2009089536A (ja) | 電源システム | |
JP5061555B2 (ja) | 燃料電池システム及び燃料電池の始動方法 | |
WO2017104319A1 (ja) | 燃料電池搭載車両システム、及び燃料電池搭載車両システムの制御方法 | |
US9713964B2 (en) | Output controller for fuel cell | |
JP4569350B2 (ja) | 電動機システム及び電動機システムの制御方法 | |
JP2008312418A (ja) | 燃料電池搭載車両 | |
JP2007149450A (ja) | 燃料電池システム、並びに移動体及びその始動方法 | |
JP2007335151A (ja) | 燃料電池車両の電力制御装置 | |
JP2009059610A (ja) | 燃料電池システム、および、電気自動車 | |
JP2014166109A (ja) | 2電源負荷駆動システム及び燃料電池自動車 | |
JP5352038B2 (ja) | 動力供給システム | |
JP2003157870A (ja) | 電源システムおよび電源システムの制御方法 | |
JP3719205B2 (ja) | 電源装置 | |
JP7272162B2 (ja) | 燃料電池車 | |
JP6167864B2 (ja) | 燃料電池システムおよび燃料電池車両、燃料電池システムの制御方法 | |
JP2008016256A (ja) | 車両用制御装置 | |
JP2004014160A (ja) | 動力装置と動力装置の運転方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780044614.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07851009 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 12446509 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120070026561 Country of ref document: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020097012181 Country of ref document: KR |
|
RET | De translation (de og part 6b) |
Ref document number: 112007002656 Country of ref document: DE Date of ref document: 20091029 Kind code of ref document: P |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07851009 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) |