KR20050020827A - Fuel cell-equipped vehicle - Google Patents

Abstract

In the fuel cell vehicle 10, the fuel cell 20 is concentrated and disposed in the lower region 15 of the front seat 14, and the secondary battery 40 is concentrated in the lower region 18 of the rear seat 17. Are arranged. In this way, since the fuel cell 20 and the secondary battery 40 are separated and arranged in the lower regions 15 and 18 of the sheets 14 and 17, the fuel cell 20 and the secondary battery having different usage environments are arranged. 40 can be operated satisfactorily. Moreover, the fuel cell 20 and the secondary battery 40 can be arrange | positioned effectively using the lower area | region 15, 18 of each sheet | seat 14 and 17 with many dead spaces.

Description

Fuel cell vehicle {FUEL CELL-EQUIPPED VEHICLE}

The present invention relates to a fuel cell vehicle having a traveling motor, a fuel cell, and a power storage device.

BACKGROUND ART Conventionally, a fuel cell vehicle is known that has a driving motor, a fuel cell and a secondary battery, and is provided with a front seat and a rear seat that can be seated by a passenger. For example, Japanese Unexamined Patent Application Publication No. 2001-113960 proposes a fuel cell mounted vehicle in which a secondary battery and a fuel cell are disposed over the vehicle body front and rear directions under the floor of the vehicle.

However, since the secondary battery and the fuel cell in which the use environment is different are arranged in close proximity, it is not preferable to operate both batteries. In addition, when the secondary battery and the fuel cell are disposed under the floor of the vehicle, it is difficult to provide sufficient space under the floor of the vehicle, and it is difficult to apply to a vehicle having a low ground height such as a sedan or a coupe.

This invention is made | formed in view of such a subject, Comprising: It is an object of this invention to provide the fuel cell mounting vehicle which can operate the electrical storage device and fuel cell which are different in a use environment favorably. It is also an object of the present invention to provide a fuel cell vehicle on which a power storage device and a fuel cell can be arranged by effectively utilizing dead space. Another object of the present invention is to provide a fuel cell vehicle that can cope with low ground clearance.

1 is a plan view of a fuel cell vehicle in accordance with the present embodiment.

2 is a schematic cross-sectional view of a fuel cell vehicle in accordance with the present embodiment.

3 is a block diagram of a fuel cell vehicle in accordance with the present embodiment;

(The best mode for carrying out the invention)

In order to make this invention clearer, preferred embodiment of this invention is described below, referring drawings. 1 is a plan view of a fuel cell vehicle in accordance with the present embodiment, FIG. 2 is a schematic sectional view of a fuel cell vehicle, and FIG. 3 is a block diagram of the fuel cell vehicle.

The fuel cell vehicle 10 of the present embodiment has a monocoque structure in which a chassis frame and a body are integrally formed, and mainly includes a driving motor 11, a front seat 14, a rear seat 17, a fuel cell 20, A secondary battery 40 and a power control unit 50 (hereinafter referred to as PCU) are provided. In addition, a frame structure may be employed instead of the monocoque structure.

The traveling motor 11 is a three-phase synchronous motor, and is arranged in the vehicle front compartment 61 together with the inverter 12 in the vicinity of the front wheel FW, that is, the passenger compartment 63, separated by a dash panel. . In this traveling motor 11, as shown in FIG. 3, the direct current output from the combustion battery 20 or the secondary battery 40 passes through the distributor 27, and is converted into three-phase alternating current by the inverter 12. Supplied. The driving motor 11 is supplied with such electric power to generate a rotational driving force, which is transmitted to the axle 46 of the front wheel FW via the differential gear 44 to travel the fuel cell vehicle 10. It is the power to let.

The front seat 14 is a seat of the front row of the two rows of seats provided in the passenger compartment 63, and consists of a driver's seat and a passenger seat. In addition, the rear seat 17 is a sheet | seat of the back row | out of these two rows of sheets, and is what is called a bench seat. Center pillars 60 and 60 are formed on the left side and the right side of the fuel cell vehicle 10 between the front seat 14 and the rear seat 17.

The fuel cell 20 is a well-known solid polymer electrolyte fuel cell, and has a stack structure in which a plurality of single cells that are structural units are stacked. In each unit cell constituting the fuel cell 20, as shown in FIG. 3, after the hydrogen gas (fuel gas) is regulated by the mass flow controller 22 in the hydrogen tank 21, the humidifier 23. Is compressed, supplied to the anode, and compressed air (oxidized gas) whose pressure is adjusted from the air compressor 13 is supplied to the cathode, whereby electromotive force is generated by a predetermined electrochemical reaction. That is, in the anode, hydrogen is separated into protons and electrons, and the protons separated from the anode conduct the solid polymer electrolyte membrane to reach the cathode, and at the same time, the electrons separated from the anode reach the cathode through the wire connected through the load. In the cathode, electromotive force is generated by an electrochemical reaction in which water combines with protons and electrons to generate water.

This fuel cell 20 is collectively arranged in the lower region 15 of the front sheet 14 as shown in FIG. 2. The lower region 15 is specifically the lower surface of the front seat 14 and the virtual vertical surface 15a and the front seat 14 including the knee joint position 16 when the passenger is seated on the front seat 14. ) Is an area surrounded by the virtual vertical surface 15b including the bottom of the seat back. Moreover, a part of this fuel cell 20 is compared with the horizontal surface (henceforth the level surface FL of a vehicle floor) containing the point which contacts the heel when a passenger seated in the driver's seat of the front seat 14 drives. It is arrange | positioned below and the remainder is arrange | positioned above the level surface FL of the vehicle floor. In this embodiment, 1/2 or more of the fuel cells 20 are disposed above the level surface FL of the vehicle floor. Here, as shown in FIG. 2, the vehicle floor is raised from the lower area of the front seat 14 than the level surface FL, and the fuel cell 20 is arrange | positioned inside the raised part, and the fuel cell 20 A part of) is disposed below the level surface FL, and the other part is disposed above the level surface FL. However, a portion of the fuel cell 20 is partially leveled by arranging the fuel floor 20 in the recessed portion of the vehicle floor in a lower portion of the front seat 14 than the level surface FL. You may arrange | position below and rest may be arrange | positioned above the level surface FL. In this case, the fuel cell 20 is disposed above the vehicle floor, that is, in the vehicle cabin. The knee joint position 16 may be determined by seating a three-dimensional manikin (adult male) on the front seat 14.

The auxiliary air stream 30 of the fuel cell 20 includes the air compressor 13 described above, the hydrogen tank 21 described above, the mass flow controller 22 described above, and the humidifier 23 described above. B) a DC / DC converter 24 for dropping output voltages from the fuel cell 20 and the secondary battery 40 to a predetermined voltage, or hydrogen gas discharged from the fuel cell 20 without reacting. A hydrogen gas circulation pump 25 to be supplied to the fuel cell 20 again, a water pump 26 for circulating cooling water to the fuel cell 20 for cooling the fuel cell 20, a fuel cell 20 and A distributor 27 for distributing the output of the secondary battery 40, a radiator 32 for dissipating the liquid refrigerant (cooling water) circulated to the fuel cell 20 by the water pump 26, and the like. In addition, the distributor 27 performs power supply to the auxiliary air stream 30 and the traveling motor 11 in one or both of the fuel cell 20 and the secondary battery 40 or by the fuel cell 20. A switching circuit for charging the secondary battery 40 or the like.

These auxiliary air streams 30 are supplied with electric power from the fuel cell 20 and the secondary battery 40 dropping down to a predetermined voltage by the DC / DC converter 24 after passing through the distributor 27. Among these auxiliary air streams, the air compressor 13 and the radiator 32 are arranged in the vehicle front chamber 61 near the front wheel FW, and the plurality of hydrogen tanks 21 are vehicles in the vicinity of the rear wheel FR. Although arranged in the rear chamber 62, the mass flow controller 22, the humidifier 23, the DC / DC converter 24, the hydrogen gas circulation pump 25, the water pump 26 and the distributor 27, In the lower region 15 of the front seat 14 in which the fuel cell 20 is arranged, they are arranged side by side on the left side (left side toward the vehicle traveling direction) of the fuel cell 20.

The secondary battery 40 has a structure in which a plurality of well-known nickel hydride secondary batteries are connected in series. The secondary battery 40 drives the driving motor 11 at the time of starting the vehicle under the control of the PCU 50, recovers regenerative power at the time of deceleration regeneration, or drives the driving motor 11 at the time of acceleration. It may be assisted or may be charged by the fuel cell 20 depending on the load. The secondary battery 40 may be a battery that can be charged and discharged. The secondary battery 40 is not limited to a nickel hydride secondary battery, and may be, for example, a nickel card secondary battery, a lithium hydrogen secondary battery, a lead acid battery, or the like. Or a capacitor.

This secondary battery 40 is collectively arranged in the lower region 18 of the rear sheet 17. Specifically, the lower region 18 is a region below the rear seat 17 and rearward of the virtual vertical surface 18a including the knee joint position 19 when the passenger is seated on the rear seat 17. Moreover, a part of this secondary battery 40 is arrange | positioned below the level surface FL of the vehicle floor, and the remainder is arrange | positioned above the level surface FL of the vehicle floor. In this embodiment, 1/2 or more of the secondary battery 40 is arrange | positioned above the level surface FL of the vehicle floor. Here, as shown in FIG. 2, the vehicle bottom is raised from the lower region of the rear seat 17 above the level surface FL, and the secondary battery 40 is disposed by arranging the secondary battery 40 inside the raised portion. A part of) is disposed below the level surface FL, and the other part is disposed above the level surface FL. However, a part of the secondary battery 40 is partially leveled by arranging the secondary battery 40 in the recessed portion of the vehicle floor in a lower portion of the rear seat 17 than the level surface FL. You may arrange | position below and rest may be arrange | positioned above the level surface FL. In this case, the secondary battery 40 is disposed above the vehicle floor, that is, in the vehicle cabin. The knee joint position 19 may be determined by seating a three-dimensional manikin (adult male) on the rear seat 17. In addition, in this embodiment, the rear side of the lower region 18 of the rear seat 17 and the vehicle rear chamber 62 overlap, but the lower region 18 of the rear seat 17 is lower than the rear seat 17. And an area surrounded by the virtual vertical surface including the virtual vertical surface 18a and the seat back lower end of the rear seat 17, and the rear side thereof may be the vehicle rear chamber 62.

The PCU 50 controls the driving force of the motor 11 for driving, and is configured as a logic circuit centering on a microcomputer, and is composed of well-known CPU, ROM, RAM, and input / output ports although not shown. The PCU 50 inputs the pedal position of the Excel pedal sensor, the output current / output voltage of the inverter 12, the residual capacity value of the secondary battery 40, or the detected values of various sensors not shown, and based on the input values. For example, the control signal for controlling the supply gas amount to the mass flow controller 22 and the air compressor 13 may be output, or the control signal for the inverter 12 or the distributor 27 may be output.

Here, while the use temperature of the fuel cell 20 is about 80 degreeC, the use temperature of the secondary battery 40 is 60 degrees C or less. In addition, while the fuel cell 20 is liquid cooling (for example, water cooling), the secondary battery 40 is air cooling, not liquid cooling. As described above, the fuel cell 20 and the secondary battery 40 have different operating environments such as use temperature and cooling method.

In the fuel cell vehicle 10 of the present embodiment configured as described above, the fuel cell 20 is disposed on both of the lower regions 15, 18 of each sheet 14, 17, or each sheet 14, 17 is provided. Instead of disposing the secondary battery 40 on both of the lower regions 15 and 18, the fuel cell 20 is collectively arranged in the lower region 15 of the front sheet 14 and the rear sheet 17 is disposed. In the lower region 18, the secondary batteries 40 are collectively arranged. In this way, since the fuel cell 20 and the secondary battery 40 are separated and arranged in the lower regions 15 and 18 of the sheets 14 and 17, the fuel cell 20 and the secondary battery having different usage environments are arranged. 40 can be operated satisfactorily. In addition, the lower regions 15 and 18 of each of the sheets 14 and 17 having a large dead space can be effectively used as a space for arranging the fuel cell 20, the secondary battery 40, and devices related thereto.

In addition, the passenger seated on the front seat 14 is not impaired in the comfort of riding around the foot by the fuel cell 20 or the like disposed in the lower region 15 of the front seat 14, and is seated on the rear seat 17. One passenger can comfortably ride around the foot even by the fuel cell 20 disposed in the lower region 15 of the front seat 14 and the secondary battery 40 disposed in the lower region 18 of the rear seat 17. It is not damaged. That is, since both the lower region 15 of the front seat 14 and the lower region 18 of the rear seat 17 are regions which do not interfere with the foot space of the passenger, the comfort of riding around the passenger's feet is not impaired. .

In addition, the driving motor 11 and the PCU 50 are disposed in the vehicle front chamber 61, and the hydrogen tank 21 for supplying hydrogen gas to the fuel cell 20 is disposed in the vehicle rear chamber 52. Therefore, the weight distribution in the vehicle front-rear direction can be optimized. Since the fuel cell vehicle 10 of the present embodiment is a front-wheel drive vehicle, the front of the vehicle is slightly heavier than the rear of the vehicle from the viewpoint of efficiently recovering regenerative power.

In addition, a part of the auxiliary air stream 30 of the fuel cell 20 (mass flow controller 22, humidifier 23, DC / DC converter 24, hydrogen gas circulation pump 25, water pump 26, Since the distributor 27 is disposed in the lower region 15 of the front seat 14 on which the fuel cell 20 is disposed, it simplifies the installation of gas piping and the like, compared to the case where they are arranged in a separate place. can do. In addition, since they are arranged side by side in the vehicle width direction longer than the fuel cell 20 and the vehicle front-rear direction in the lower region 15 of the front seat 14, the front seat 14 is lowered together with the fuel cell 20. It is easy to receive in the area | region 15.

In this embodiment, since the radiator 32, the fuel cell 20, and the secondary battery 40 are arranged in order from the front of the vehicle front-back direction, the radiator 32, the secondary battery 40, and the fuel cell ( Compared with the arrangement in the order of 20, the distance between the fuel cell 20 and the radiator 32 is shortened, and the configuration can be made compact.

In addition, in this embodiment, since the driving motor 11, the fuel cell 20, and the secondary battery 40 are arranged in order from the front of the vehicle front-back direction, the driving motor 11 and the secondary battery 40 ), Compared with the case where the fuel cells 20 are arranged in order, the wiring length of the relatively large diameter which connects the driving motor 11 and the fuel cell 20 can be shortened, and the structure of the whole apparatus can be shortened. It can be compact.

Further, since at least half of the fuel cell 20 and the secondary battery 40 are disposed above the level surface FL of the vehicle floor, the entire fuel cell 20 and the secondary battery 40 are closed. It is easier to secure the minimum ground clearance of the vehicle as compared with the case below the level surface FL of the vehicle floor.

In addition, at the time of side impact, center pillars 60 and 60 formed between the lower region 15 of the front seat 14 and the lower region 18 of the rear seat 17 among the left and right sides of the fuel cell vehicle 10. ), The fuel cell 20 or the secondary battery 40 is protected by the center pillars 60 and 60.

In addition, this invention is not limited to embodiment mentioned above at all, Needless to say that it can implement in various aspects as long as it belongs to the technical scope of this invention.

For example, in embodiment mentioned above, although two rows of sheets were provided in the vehicle front-back direction of the cabin 63, you may provide three or more rows of sheets. For example, when three rows of sheets are provided, the sheet in the last row becomes the rear sheet when the sheet in the middle row or the last row is the rear sheet, and the sheet in the last row becomes the rear sheet when the sheet in the middle row is the front sheet. Here, when the rear sheet is the last thermal sheet, it is not necessary to specifically define the rear boundary of the lower region of the rear sheet, but when the rear sheet is not the last thermal sheet (for example, the middle row sheet), the last thermal sheet In consideration of the circumference of the foot of the passenger seated at the front side, it is preferable to make the rear boundary of the lower area of the rear seat into a virtual vertical surface including the bottom of the seat back of the rear seat.

In addition, although the hydrogen tank 21 was used as a supply source which supplies hydrogen gas (fuel gas) to the fuel cell 20 in the above-mentioned embodiment, a hydrogen storage alloy may be used instead of the hydrogen tank 21, or a hydrocarbon type | system | group may be used. You may use the reformer which produces | generates a hydrogen-rich gas by reaction of fuel (for example, gasoline or methanol) and water.

Further, in the above-described embodiment, the front wheel drive car is exemplified, but the vehicle having the center tunnel does not have a hollow center tunnel raised at the level surface FL of the vehicle floor. At least a part of 30) may be disposed inside the center tunnel. In this way, since the auxiliary airflow is effectively utilized by utilizing the inside of the existing center tunnel, the passenger's riding space is not damaged.

In addition, in the above-mentioned embodiment, although the fuel cell 20 etc. were arrange | positioned in the lower region 15 of the front seat 14, and the secondary battery 40 was arrange | positioned in the lower region 18 of the rear seat 17, The fuel cell 20 and the like may be disposed in the lower region 18 of the rear sheet 17 and the secondary battery 40 may be disposed in the lower region 15 of the front sheet 14.

In the above-described embodiment, a part of the auxiliary air stream 30 (the air compressor 13 or the hydrogen tank 21) is distributed and arranged in the vehicle front chamber 61 or the vehicle rear chamber 62. You may arrange | position in the lower region 15 of the front sheet 14 or the lower region 18 of the rear sheet 17.

In addition, in the above-mentioned embodiment, although the structure which can use both the fuel cell 20 and the secondary battery 40 as a drive source of the driving motor 11 was employ | adopted (on the control, the fuel cell 20 and the secondary battery) Including the case where the driving motor 11 is driven to both sides of the 40, and the driving motor 11 is driven only by either one of the fuel cell 20 and the secondary battery 40, and the fuel cell ( A configuration in which only one of the 20) and the secondary battery 40 can be used as a driving source of the traveling motor 11 may be adopted, and for example, a configuration in which one battery can be used as a driving source of the traveling motor 11. The other battery may be used as a power source for a separate device (eg auxiliary air). Alternatively, in addition to the two batteries 20 and 40, a driving source of the driving motor 11 may be provided, and one or both of the two batteries 20 and 40 may serve to assist the driving source. Thus, the traveling motor 11 should just be comprised so that at least one of the fuel cell 20 and the secondary battery 40 can be used as a drive source.

The present invention employs the following means to achieve at least one of the objects described above. That is, the present invention is a fuel cell vehicle having a driving motor, a fuel cell, and a power storage device, and having a front seat and a rear seat for passengers to sit on,

The fuel cell is disposed collectively in the lower region of any one of the front seat and the rear seat,

The power storage device is collectively arranged in a lower region of any one of the front sheet and the rear sheet.

will be.

In the fuel cell vehicle, the fuel cell is not disposed in both the lower region of the front seat and the lower region of the rear seat, or the power storage device is disposed in both the lower region of the front sheet and the lower region of the rear seat. The fuel cells are collectively arranged in the lower region, and the power storage device is collectively arranged in the lower region of the rear seat, or the fuel cells are collectively arranged in the lower region of the rear seat, and the electrical storage device is collectively arranged in the lower region of the front seat. . Thus, since the fuel cell and the power storage device are separated and arranged in the lower region of each sheet, the fuel cell and the power storage device having different usage environments can be operated well. Moreover, the downward area | region of the sheet with many dead spaces can be utilized effectively.

Here, the "front seat" refers to the seat in front of the vehicle, and the "rear seat" refers to the seat in the rear of the vehicle. For example, when there are three rows of seats in the front and rear direction of the vehicle, the middle row or The last row of sheets is the rear sheet, and when the middle row of sheets is the front sheet, the last row of sheets is the rear sheet. In addition, although the "motor for driving" may use both a fuel cell and a power storage device as a drive source, you may use either a fuel cell and a power storage device as a drive source. In addition, as long as the electrical storage device which can charge / discharge, a "power storage device" may be any kind of device, and it may be a secondary battery or a capacitor, for example.

In the fuel cell vehicle in accordance with the present invention, the apparatus related to the fuel cell and the power storage device includes a lower region of the front seat, a lower region of the rear seat, a vehicle front chamber near the front wheel and a vehicle rear chamber near the rear wheel. It may be arrange | positioned at any one, and these apparatuses may be arrange | positioned and may be arrange | positioned dispersely. In this way, it is possible to effectively use the lower region of the seat with a lot of dead space or to use the vehicle front chamber or the vehicle rear chamber with a relatively large space for the equipment related to the fuel cell and the power storage device.

Here, "the apparatus regarding the said fuel cell and the said electrical storage device" is a driving motor which uses at least one of a fuel cell and an electrical storage device as a drive source, the control unit which controls the driving force of a traveling motor, and makes a fuel cell operate, for example. And various auxiliary devices (for example, a fuel gas supply device, an oxidizing gas supply device, and a cooling device).

In the fuel cell vehicle according to the present invention, the lower region of each of the seats may be an area that does not interfere with the foot space of the passenger. This does not impair ride comfort around the foot of the passenger.

In the fuel displaced vehicle of the present invention, the lower region of the front seat is a lower portion of the front seat and includes an imaginary vertical plane including a knee joint position when a passenger is seated on the front seat and a lower seat back of the front seat. It is an area | region enclosed by the virtual vertical surface which contains, and the lower area | region of the said rear seat | seat can also be set as the area | region back from the virtual vertical surface containing the knee joint position when the passenger seats on the said rear seat | seat. In this way, passengers seated in the front seats are not impaired in the comfort of riding around the feet by batteries placed in the lower area of the front seats, and passengers seated in the rear seats are also removed by batteries placed in the lower area of the front seats. Even if the battery is disposed below the rear seat, the riding comfort around the foot is not impaired. In the case where the rear seat is the last thermal sheet, the rear boundary of the lower area of the rear seat does not need to be specifically defined, but when the rear seat is not the last thermal sheet (for example, the middle thermal sheet), it is applied to the last thermal sheet. In consideration of the circumference of the foot of the seated passenger, it is preferable that the rear boundary of the lower area of the rear seat is a virtual vertical surface including the seat back bottom of the rear seat.

In the fuel cell vehicle in accordance with the present invention, at least a part of the auxiliary air stream of the fuel cell may be disposed in a region below the sheet on which the fuel cell is arranged. In this case, part or all of the fuel cell and the auxiliary air streams of the fuel cell are disposed in the lower region of the same sheet, so that the installation of the gas piping and the like can be simplified as compared with the case where the fuel cell and the auxiliary airflow of the fuel cell are disposed in separate places. At this time, at least a part of the auxiliary airflow of the fuel cell may be arranged in parallel with the fuel cell in the vehicle width direction in a region below the sheet on which the fuel cell is arranged. In this case, since the lower region of each sheet is generally longer in the vehicle width direction than the vehicle front-rear direction, it is easy to store a part or all of the fuel cell and its auxiliary airflow in the lower region of the sheet. In the fuel cell vehicle in accordance with the present invention, at least a part of the auxiliary air stream of the fuel cell may be disposed inside the center tunnel. In this case, when the center tunnel already exists, since the auxiliary airflow is effectively utilized by using the inside of the center tunnel, the passenger's riding space is not damaged.

Here, "auxiliary airflow of the fuel cell" refers to the equipment required for the operation of the fuel cell, for example, an oxidizing gas supply device for supplying oxidizing gas to the fuel cell, a fuel gas supply device for supplying fuel gas to the fuel cell, A humidifier for humidifying the fuel gas and supplying it to the fuel cell, a mass flow controller for adjusting the pressure and flow rate of the fuel gas supplied to the fuel cell, or the fuel gas discharged without reacting from the fuel cell is returned to the fuel cell. The fuel gas circulation pump to supply, the water pump which circulates cooling water to a fuel cell, in order to cool a fuel cell, etc. are mentioned.

In the fuel cell vehicle of the present invention, a center pillar may be formed between the lower region of the front sheet and the lower region of the rear sheet. In this case, since the center pillar receives the load at the time of side impact, the fuel cell and the power storage device are protected by the center pillar.

The present invention may be a fuel cell vehicle having a traveling motor, a fuel cell, and a power storage device, and may be arranged in the order of the traveling motor, the fuel cell, and the power storage device from the front of the vehicle in front and rear directions. This makes it possible to shorten the length of the relatively large wiring connecting the driving motor and the fuel cell as compared with the case where the driving motor, the storage battery and the fuel cell are arranged in front of the vehicle front and rear directions. The structure of the whole apparatus can be made compact.

The present invention is a fuel cell vehicle having a traveling motor, a fuel cell, and a power storage device, and may be arranged in the order of the cooling device of the fuel cell, the fuel cell, and the power storage device from the front and rear of the vehicle. . In this case, since the distance between the fuel cell and the cooling device is shorter than that of the fuel cell cooling device, the secondary battery, and the fuel cell, which is arranged in front of the vehicle front-back direction, the configuration can be made compact.

In the fuel cell vehicle in accordance with the present invention, the traveling motor may be disposed in a vehicle front chamber near the front wheel, and a fuel gas supply source for supplying fuel gas to the fuel cell may be disposed in the vehicle rear chamber near the rear wheel. This makes it possible to optimize the weight distribution in the front-rear direction of the vehicle. At this time, the control unit which controls the output of the traveling motor by controlling the electric power from the fuel cell and the power storage device may be disposed in the vehicle front chamber near the front wheel together with the traveling motor. In this way, the weight distribution in the front-rear direction of the vehicle can be further optimized. In addition, the fuel gas supply source may be a hydrogen tank (a hydrogen cylinder, a hydrogen storage alloy, or the like), or may be a reformer that generates a hydrogen-rich gas by reacting a hydrocarbon-based fuel with water.

In the fuel cell vehicle of the present invention, at least part of the fuel cell may be disposed above the level surface of the vehicle floor. This makes it easier to secure the minimum ground clearance of the vehicle as compared with the case where the entire fuel cell is disposed below the level surface of the vehicle floor. In addition, the "level surface of a vehicle floor" means the horizontal surface including the point which a passenger seated in the driver's seat touches the heel at the time of driving.

In the fuel cell vehicle in accordance with the present invention, at least part of the power storage device may be disposed above the level surface of the vehicle floor. This makes it easier to secure the minimum ground clearance of the vehicle as compared with the case where the entire power storage device is disposed below the level surface of the vehicle floor.

In the fuel cell vehicle in accordance with the present invention, the fuel cell may be disposed outside the vehicle cabin (vehicle front compartment, vehicle rear compartment, or under the vehicle floor), or may be disposed within the vehicle cabin (on the vehicle floor). The same applies to the power storage device.

The present invention can be used in the automotive industry.

Claims (17)

A fuel cell vehicle having a driving motor, a fuel cell and a power storage device, and having a front seat and a rear seat for passengers to sit on, The fuel cell is disposed collectively in the lower region of any one of the front seat and the rear seat, The power storage device is a fuel cell vehicle in which the power storage device is collectively arranged in a lower region of any one of the front seat and the rear seat. The apparatus according to claim 1, wherein the devices related to the fuel cell and the power storage device are disposed in any one of a lower region of the front seat, a lower region of the rear seat, a vehicle front chamber near the front wheel, and a vehicle rear chamber near the rear wheel. Fuel cell vehicle. The fuel cell vehicle according to claim 1 or 2, wherein the lower region of each seat is an area which does not interfere with the foot space of the passenger. The virtual vertical surface according to any one of claims 1 to 3, wherein the lower region of the front seat is a lower portion of the front seat and includes a knee joint position when a passenger is seated on the front seat. An area surrounded by a virtual vertical surface including a lower seat back, and a lower area of the rear seat is an area below the virtual vertical plane including the knee joint position when the passenger is seated on the rear seat. Fuel cell vehicle. The fuel cell vehicle according to any one of claims 1 to 4, wherein at least a part of the auxiliary air stream of the fuel cell is disposed in a region below the sheet on which the fuel cell is arranged. 6. The fuel cell vehicle according to claim 5, wherein at least a part of the auxiliary airflow of the fuel cell is arranged in parallel with the fuel cell in the vehicle width direction in a region below the seat where the fuel cell is arranged. The fuel cell vehicle according to any one of claims 1 to 6, wherein at least a part of the auxiliary unit of the fuel cell is disposed inside the center tunnel. The fuel cell vehicle according to any one of claims 1 to 7, wherein a center pillar is formed between a lower region of the front sheet and a lower region of the rear sheet. A fuel cell vehicle having a running motor, a fuel cell, and a power storage device, A fuel cell vehicle in which the traveling motor, the fuel cell, and the power storage device are arranged in order from the front of the vehicle in front and rear directions. As a fuel cell vehicle having a traveling motor, a fuel cell, and a power storage device, A fuel cell vehicle in which fuel cell cooling devices, fuel cells, and power storage devices are arranged in front of the vehicle in front and rear directions. The fuel cell vehicle according to any one of claims 1 to 10, wherein at least one of the fuel cell and the power storage device is disposed in a vehicle cabin. The method according to any one of claims 1 to 11, The driving motor is disposed in the vehicle front compartment near the front wheel, The fuel gas supply vehicle for supplying fuel gas to the fuel cell is disposed in a vehicle rear chamber near the rear wheel. 13. The vehicle front compartment according to claim 12, further comprising a control unit for controlling the output of the traveling motor by controlling electric power from the fuel cell and the power storage device, wherein the control unit is located near the front wheel together with the traveling motor. A fuel cell vehicle in which the fuel cell is disposed. The fuel cell vehicle according to claim 12, wherein the fuel gas supply source is a hydrogen tank. The fuel cell vehicle according to any one of claims 1 to 14, wherein at least part of the fuel cell is disposed above the level surface of the vehicle floor. The fuel cell vehicle according to any one of claims 1 to 15, wherein at least part of the power storage device is disposed above the level surface of the vehicle floor. The fuel cell vehicle according to any one of claims 1 to 16, wherein the power storage device is a secondary battery or a capacitor.