WO2015163024A1 - 電動車両 - Google Patents
電動車両 Download PDFInfo
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- WO2015163024A1 WO2015163024A1 PCT/JP2015/056989 JP2015056989W WO2015163024A1 WO 2015163024 A1 WO2015163024 A1 WO 2015163024A1 JP 2015056989 W JP2015056989 W JP 2015056989W WO 2015163024 A1 WO2015163024 A1 WO 2015163024A1
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- WIPO (PCT)
- Prior art keywords
- pipe
- fuel cell
- cell stack
- compressor
- intercooler
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K8/00—Arrangement or mounting of propulsion units not provided for in one of the preceding main groups
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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
- 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
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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
- 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
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- 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
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- 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
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- 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
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- 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
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- 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
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- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0411—Arrangement in the front part of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
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- 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
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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
- 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
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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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
- 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 an electric vehicle.
- a fuel cell stack that generates electric power by an electrochemical reaction between hydrogen and oxygen, a hydrogen shut-off valve disposed in a hydrogen supply path that interconnects the fuel cell stack and the hydrogen tank, and air to the fuel cell stack
- An electric vehicle is known that includes a compressor, and first closes the hydrogen cutoff valve and then stops the compressor when the vehicle collides (see Patent Document 1). That is, in Patent Document 1, the operation of the compressor is continued for a while after the vehicle collision, thereby consuming hydrogen remaining in the fuel cell stack.
- a compressor, an intercooler that cools the oxidant gas discharged from the compressor, and a fuel cell stack are housed in a housing chamber formed outward in the vehicle length direction of the passenger compartment, and the outlet of the compressor and the intercooler
- An electric vehicle is also known in which an inlet of the fuel cell is connected to each other by an upstream pipe, and an outlet of the intercooler and an inlet of an oxidant gas passage of the fuel cell stack are connected to each other by a downstream pipe.
- Patent Document 1 described above, residual hydrogen is consumed after a vehicle collision. This means that power generation is continued in the fuel cell stack even after a vehicle collision. As a result, the fuel cell stack may be maintained at a high voltage. If the fuel cell stack is at a high voltage, the operator may be electrocuted.
- a compressor that discharges oxidant gas
- an intercooler that cools oxidant gas discharged from the compressor
- a fuel cell stack that generates electric power by an electrochemical reaction between the fuel gas and the oxidant gas
- An electric vehicle in which the inlet of the gas passage is connected to each other by downstream piping, and one of the compressor and the fuel cell stack or the fuel cell stack at the time of a vehicle heavy collision in which the impact load input to the vehicle is larger than a predetermined upper limit value Compressor, intercooler and fuel cell stack so that both move relative to the intercooler.
- Compressor, intercooler and fuel cell stack so that both move relative to the intercooler.
- FIG. 1 is an overall view of a fuel cell system. It is a partial side cross section of the electric vehicle at the time of a vehicle heavy collision.
- the electric vehicle 1 includes an occupant room 2 and an accommodation room 3 formed outside the occupant room 2 in the vehicle length direction, that is, on the front side.
- the storage chamber 3 is separated from the passenger compartment 2 by a dashboard 4. A part or all of the fuel cell system A is accommodated in the accommodating chamber 3.
- FIG. 2 shows an example of the fuel cell system A.
- the fuel cell system A includes a fuel cell stack 10.
- the fuel cell stack 10 includes a plurality of fuel cell single cells stacked in the stacking direction.
- Each single fuel cell includes a membrane electrode assembly 20.
- the membrane electrode assembly 20 includes a membrane electrolyte, an anode electrode formed on one side of the electrolyte, and a cathode electrode formed on the other side of the electrolyte.
- a fuel gas flow passage for supplying fuel gas to the anode electrode an oxidant gas flow passage for supplying oxidant gas to the cathode electrode, and cooling water to the fuel cell single cell.
- a cooling water flow passage for supplying water.
- the fuel gas passage 30, the oxidant gas passage 40, and the cooling water are connected to the fuel cell stack 10.
- Each passage 50 is formed.
- a downstream fuel gas pipe 31d is connected to the inlet of the fuel gas passage 30, and the downstream fuel gas supply pipe 31 is connected to the outlet of a regulator 32 that adjusts the pressure of the fuel gas.
- An upstream fuel gas pipe 31 u is connected to the inlet of the regulator 32, and the upstream fuel gas pipe 31 u is connected to a fuel gas source 33.
- the fuel gas is formed from hydrogen and the fuel gas source 33 is formed from a hydrogen tank.
- a fuel gas cutoff valve 34 is disposed in the upstream side fuel gas pipe 31u.
- an anode off gas pipe 35 is connected to the outlet of the fuel gas passage 30.
- the fuel gas shut-off valve 34 When the fuel gas shut-off valve 34 is opened, the fuel gas in the fuel gas source 33 is supplied into the fuel gas passage 30 in the fuel cell stack 10. At this time, the gas flowing out from the fuel gas passage 30, that is, the anode off-gas flows into the anode off-gas pipe 35.
- downstream side oxidant gas pipe 41d is connected to the inlet of the oxidant gas passage 40, and the downstream side oxidant gas pipe 41d is connected to the outlet of the intercooler 42 for cooling the oxidant gas.
- An upstream side oxidant gas pipe 41u is connected to the inlet of the intercooler 42, and the upstream side oxidant gas pipe 41u is connected to the outlet of the compressor 43 that discharges the oxidant gas.
- An oxidant gas duct 44 is connected to the inlet of the compressor 43, and the oxidant gas duct 44 is connected to an oxidant gas source 45.
- the oxidant gas is formed from air and the oxidant gas source 45 is formed from the atmosphere.
- a cathode off-gas pipe 46 is connected to the outlet of the oxidant gas passage 40.
- the oxidant gas in the oxidant gas source 45 is supplied into the oxidant gas passage 40 in the fuel cell stack 10.
- the gas flowing out from the oxidant gas passage 40, that is, the cathode off gas flows into the cathode off gas pipe 46.
- FIG. 1 shows the compressor 43, the intercooler 42, the fuel cell stack 10, the upstream side oxidant gas pipe 41u, the downstream side oxidant gas pipe 41d, and the oxidant gas duct in the fuel cell system A. 44 is shown.
- the upstream side oxidant gas pipe 41u and the downstream side oxidant gas pipe 41d are referred to as an upstream side pipe 41u and a downstream side pipe 41d, respectively.
- the upstream pipe 41u is formed of an upstream first pipe part 41u1 and an upstream second pipe part 41u2 connected to each other. That is, the outlet of the compressor 43 is connected to the upstream first tube portion 41u1, the upstream first tube portion 41u1 is connected to the upstream second tube portion 41u2, and the upstream second tube portion 41u2 is connected to the inlet of the intercooler 42.
- the downstream pipe 41d is formed of a downstream first pipe part 41d1 and a downstream second pipe part 41d2 that are connected to each other.
- the outlet of the intercooler 42 is connected to the downstream first tube portion 41d1, the downstream first tube portion 41d1 is connected to the downstream second tube portion 41d2, and the downstream second tube portion 41d2 is connected to the fuel cell stack 10.
- the upstream pipe 41u or the downstream pipe 41d is formed from a single pipe portion.
- the upstream pipe 41u or the downstream pipe 41d is formed of three or more pipe portions.
- connection between the compressor 43, the intercooler 42 and the fuel cell stack 10, the upstream side pipe 41u and the downstream side pipe 41d, and the connection between the pipe parts 41u1, 41u2, 41d1, 41d2 are, for example, one in the other. This is accomplished by inserting to form an overlap and tightening a clip provided around the overlap.
- a part of the upstream side pipe 41u and the downstream side pipe 41d for example, the upstream side first pipe part 41u1 and the downstream side second pipe part 41d2 are made of a material having a relatively high rigidity, for example, a metal. Formed from.
- the remainder of the upstream side pipe 41u and the downstream side pipe 41d for example, the upstream side second pipe part 41u2 and the downstream side first pipe part 41d1 are made of a relatively flexible material, for example, resin.
- the upstream first tube portion 41u1 and the downstream second tube portion 41d2 are fixed to the fuel cell stack 10.
- the upstream second tube portion 41u2 and the downstream first tube portion 41d1 are not fixed to the fuel cell stack 10.
- the intercooler 42 is directly fixed to the frame of the electric vehicle 1, for example, the suspension member 5.
- the compressor 43 and the fuel cell stack 10 are indirectly fixed to the suspension member 5 via a mount (not shown).
- the fuel cell stack 10 is fixed to the suspension member 5 via a mount
- the compressor 43 is fixed to the fuel cell stack 10 via a mount.
- the compressor 43 is fixed to the suspension member 5 via a mount.
- the fuel cell stack 10 or the compressor 43 is fixed to another element of the fuel cell system A, for example, a motor generator, via a mount.
- the compressor 43, the fuel cell stack 10 and the intercooler 42 are provided in the housing chamber 3 as described above, one or both of the compressor 43 and the fuel cell stack 10 can move relative to the intercooler 42 at the time of a vehicle collision. That is, when the vehicle 1 collides at the front end 1a, an impact load inward in the vehicle length direction VL, that is, a rearward impact is applied to the vehicle 1. When this rearward impact load is larger than a predetermined upper limit value, that is, when a heavy vehicle collision occurs, one or both of the relatively heavy compressor 43 and the fuel cell stack 10 are detached from the mount, Move from position. On the other hand, the relatively lightweight intercooler 42 is directly fixed to the suspension member 5 and does not move. As a result, one or both of the compressor 43 and the fuel cell stack 10 move relative to the intercooler 42 due to a heavy vehicle collision.
- FIG. 3 shows a case where the compressor 43 and the fuel cell stack 10 move relative to the intercooler 42 due to a heavy vehicle collision.
- the compressor 43 and the fuel cell stack 10 move in a direction in which the front end of the fuel cell stack 10 is lifted with respect to the rear end of the fuel cell stack 10.
- the connection between the upstream first tube portion 41u1 and the upstream second tube portion 41u2 is released.
- the connection between the downstream first tube portion 41d1 and the downstream second tube portion 41d2 is released. Therefore, the upstream side pipe 41 u and the downstream side pipe 41 d communicate with the internal space 3 a of the storage chamber 3.
- the connection between the upstream first tube portion 41u1 and the upstream second tube portion 41u2 and the connection between the downstream first tube portion 41d1 and the downstream second tube portion 41d2 are performed. Only one of them will come off.
- the electric vehicle 1 includes an acceleration sensor (not shown) for detecting the acceleration of the vehicle 1.
- an acceleration sensor (not shown) for detecting the acceleration of the vehicle 1.
- the power supply to the compressor 43 is stopped, the compressor 43 is stopped, and the supply of the oxidant gas to the fuel cell stack 10 is stopped.
- the fuel gas shut-off valve 34 (FIG. 2) is closed, and the supply of the fuel gas to the fuel cell stack 10 is stopped. As a result, power generation in the fuel cell stack 10 is stopped.
- the fuel cell stack 10 is provided with a discharge device (not shown), and when it is determined that a vehicle heavy collision has occurred, the discharge device is activated to discharge the fuel cell stack 10. As a result, the voltage of the fuel cell stack 10 is reduced, and the worker can work safely.
- the airbag provided in the passenger compartment 2 is deployed, and when it is determined that no vehicle heavy collision has occurred, the air bag is The bag is not deployed.
- the movable element such as the rotor of the compressor 43 continues to move due to inertia, so that the supply of the oxidant gas from the compressor 43 does not stop immediately, that is, the oxidation from the compressor 43
- the agent gas continues to be discharged.
- fuel gas remains in the fuel cell stack 10.
- the oxidant gas discharged from the compressor 43 continues to be supplied to the fuel cell stack 10
- power generation is continued in the fuel cell stack 10.
- the fuel cell stack 10 is maintained at a high voltage.
- the upstream side pipe 41u and the downstream side pipe 41d communicate with the interior space 3a of the storage chamber 3.
- the oxidant gas is released into the internal space 3a of the storage chamber 3, that is, not supplied to the fuel cell stack 10. That is, the supply of the oxidant gas to the fuel cell stack 10 is quickly stopped at the time of a heavy vehicle collision.
- the pressure in the oxidant gas passage 40 (FIG. 2) of the fuel cell stack 10 is higher than the pressure in the internal space 3a of the storage chamber 3, the residual oxidant gas from the oxidant gas passage 40 into the internal space 3a. Leaks. As a result, power generation in the fuel cell stack 10 is quickly stopped.
- the oxidant gas passage 40 of the fuel cell stack 10 also communicates with the internal space 3a.
- air or oxidant gas in the internal space 3a may flow into the fuel cell stack 10 by convection, for example.
- the fuel cell stack 10 may continue or resume power generation.
- the amount of oxidant gas flowing into the fuel cell stack 10 from the internal space 3a is small, and even if power is generated in the fuel cell stack 10, the fuel cell stack 10 is maintained at a low voltage by the above-described discharge device.
- one or both of the upstream side pipe 41u and the downstream side pipe 41d are moved by moving one or both of the compressor 43 and the fuel cell stack 10 relative to the intercooler 42 in the event of a heavy vehicle collision.
- the connecting force between the second side pipe portion 41u2 and the connecting force between the first downstream tube portion 41d1 and the second downstream tube portion 41d2 are set.
- an oxidant gas shut-off valve is added, for example, in the downstream pipe 41d between the compressor 43 and the fuel cell stack 10, and the oxidant gas shut-off valve is closed at the time of a heavy vehicle collision, the fuel cell stack 10 is reached. It is possible to quickly stop the supply of the oxidant gas. Alternatively, if a braking device for stopping the movement of the movable element of the compressor 43 is added and the mobility of the movable element is stopped at the time of a heavy vehicle collision, the supply of the oxidant gas can be quickly stopped. However, these cases require additional costs. On the other hand, in the embodiment according to the present invention, the supply of the oxidant gas to the fuel cell stack 10 can be quickly stopped without any additional cost.
- one or both of the compressor 43 and the fuel cell stack 10 move relative to the intercooler 42 in the event of a heavy vehicle collision, thereby connecting the compressor 43 and the upstream pipe 41u.
- one or both of the compressor 43 and the fuel cell stack 10 move relative to the intercooler 42 at the time of a heavy vehicle collision, one or both of the upstream side pipe 41u and the downstream side pipe 41d become the internal space 3a of the storage chamber 3.
- one or both of the compressor 43 and the fuel cell stack 10 are moved relative to the intercooler 42 in the event of a heavy vehicle collision, so that the upstream side pipe 41u or the downstream side pipe 41d is provided.
- the wall is broken, whereby the upstream pipe 41u or the downstream pipe 41d communicates with the interior space 3a of the storage chamber 3.
- the damage in this case is different from the nature in which, for example, a motor generator collides with the upstream pipe 41u or the downstream pipe 41d and the upstream pipe 41u or the downstream pipe 41d is damaged at the time of a heavy vehicle collision.
- one or both of the upstream side pipe 41u and the downstream side pipe 41d are moved by moving one or both of the compressor 43 and the fuel cell stack 10 relative to the intercooler 42 in the event of a heavy vehicle collision. Communicates with the internal space 3a of the storage chamber 3, and the upstream side piping 41u or the downstream side piping 41d so that both the upstream side piping 41u and the downstream side piping 41d continue to be isolated from the internal space 3a except during a heavy vehicle collision. Will be formed.
- a humidifier, an intake valve, and the like are disposed between the compressor 43 and the fuel cell stack 10.
Abstract
Description
2 乗員室
3 収容室
5 サスペンションメンバ
10 燃料電池スタック
41u 上流側配管
41d 下流側配管
42 インタークーラ
43 コンプレッサ
A 燃料電池システム
Claims (3)
- 酸化剤ガスを吐出するコンプレッサと、コンプレッサから吐出された酸化剤ガスを冷却するインタークーラと、燃料ガスと酸化剤ガスとの電気化学反応により電力を発生する燃料電池スタックとを乗員室の車両長さ方向外方に形成された収容室内に収容し、
コンプレッサの出口とインタークーラの入口とを上流側配管により互いに連結すると共に、インタークーラの出口と燃料電池スタックの酸化剤ガス通路の入口とを下流側配管により互いに連結した、電動車両であって、
車両に入力される衝撃荷重があらかじめ定められた上限値よりも大きい車両重衝突時に、コンプレッサ及び燃料電池スタックの一方又は両方がインタークーラに対し相対移動するようにこれらコンプレッサ、インタークーラ及び燃料電池スタックを収容室内に設け、
車両重衝突時にコンプレッサ及び燃料電池スタックの一方又は両方がインタークーラに対し相対移動することにより上流側配管及び下流側配管の一方又は両方が収容室の内部空間に連通するように上流側配管又は下流側配管を形成した、
電動車両。 - 前記インタークーラが車両フレームに直接的に固定され、前記コンプレッサ及び前記燃料電池スタックが車両フレームにマウントを介して間接的に固定される、請求項1に記載の電動車両。
- 前記上流側配管又は前記下流側配管が互いに連結された複数の管部分から形成されており、前記車両重衝突時に前記コンプレッサ及び前記燃料電池スタックの一方又は両方が前記インタークーラに対し相対移動することによりこれら管部分同士間の連結が外れ、それにより上流側配管及び下流側配管の一方又は両方が収容室の内部空間に連通する、請求項1又は2に記載の電動車両。
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CN201580000848.7A CN105283336B (zh) | 2014-04-22 | 2015-03-10 | 电动车辆 |
US15/305,530 US9789755B2 (en) | 2014-04-22 | 2015-03-10 | Electric vehicle |
DE112015001911.1T DE112015001911B4 (de) | 2014-04-22 | 2015-03-10 | Elektrisches Fahrzeug |
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US9789755B2 (en) | 2017-10-17 |
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DE112015001911B4 (de) | 2020-12-10 |
US20170043655A1 (en) | 2017-02-16 |
DE112015001911T5 (de) | 2017-01-12 |
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