JP4474011B2 - Hydrogen supply device for vehicles equipped with fuel cells - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hydrogen supply device for a vehicle equipped with a fuel cell, and more particularly to a hydrogen supply device including a hydrogen supply source for supplying hydrogen to a fuel cell. Such hydrogen supply sources include high-pressure hydrogen tanks, liquid hydrogen tanks, tanks filled with hydrogen storage alloys, reformers that generate hydrogen from raw materials such as alcohol and gasoline.
[0002]
[Related technologies]
The applicant previously stated that as a hydrogen supply device that can cope with the response delay of the reformer, when the required hydrogen amount of the fuel cell cannot be satisfied by the reformer, the reformer is required to satisfy it. Has been proposed (see Japanese Patent Application No. 11-164939 and drawings), which is equipped with a hydrogen reservoir capable of storing hydrogen produced by the vessel.
[0003]
[Problems to be solved by the invention]
The amount of hydrogen required for the operation of the fuel cell, that is, the amount of hydrogen required for the fuel cell is determined by, for example, a travel mode switching device that switches the travel mode of the vehicle to the sport mode or the economy mode. The release of sufficient hydrogen from the hydrogen reservoir is necessary, for example, during vehicle acceleration. The amount of hydrogen during acceleration is different between the sports mode and economy mode, improving acceleration performance. Therefore, the former is larger than the latter.
[0004]
Therefore, it is necessary to adjust the amount of hydrogen for sufficiency for each mode and to supply hydrogen quickly in order to cope with the acceleration operation, but such a device has not been made in the prior art.
[0005]
[Means for Solving the Problems]
It is an object of the present invention to provide the hydrogen supply device that determines the amount of hydrogen for filling in accordance with the amount of hydrogen required for the fuel cell, and that can supply the sufficient amount of hydrogen to the fuel cell quickly. .
[0006]
In order to achieve the above object, according to the present invention, in a hydrogen supply apparatus including a hydrogen supply source that supplies hydrogen to a fuel cell mounted on a vehicle, the hydrogen supply source satisfies the required hydrogen amount of the fuel cell. In order to satisfy the demand, the hydrogen storage capable of storing the hydrogen supplied from the hydrogen supply source, the first means for determining the required hydrogen amount of the fuel cell, and the first Second means for determining the amount of hydrogen to be released from the hydrogen storage according to information from the means, the hydrogen storage comprising a hydrogen storage alloy for storing hydrogen supplied from the hydrogen supply source a first reservoir provided with a, are connected in series to the first storage unit, and supplies before Symbol fuel cell to store the released gaseous hydrogen from the hydrogen storage alloy of the first storage unit, a hydrogen storage alloy second storage unit without a Having the hydrogen supply device of a vehicle equipped with a fuel cell is provided.
[0007]
If comprised as mentioned above, it is possible to satisfy | fill the required amount of hydrogen of a fuel cell with the quantity of sufficient hydrogen determined according to it. That is, when the amount of hydrogen from the hydrogen supply source is a, for example, the required amount of hydrogen in the fuel cell at the time of acceleration in the economy mode is 2a, the sufficient hydrogen amount a can be supplied to the fuel cell. When the required hydrogen amount of the fuel cell at the time of mode acceleration is 3a, the sufficient hydrogen amount 2a can be supplied to the fuel cell. Moreover, since the supplied hydrogen is gaseous hydrogen stored in the second storage unit that is connected in series to the first storage unit and does not include a hydrogen storage alloy, rapid supply is possible.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
A hydrogen supply device 1 shown in FIG. 1 is mounted on an electric vehicle using a fuel cell 2 that uses hydrogen as a fuel.
[0009]
In the hydrogen supply device 1, a reformer 3 as a hydrogen supply source generates a reformed gas mainly composed of hydrogen from a raw material such as alcohol or gasoline, and its supply side is a reformed gas inlet of the fuel cell 2. Is connected to the side via a supply line 4. In the air supply pipe 5, a supercharger 8 having an air cleaner 6 and a motor 7 and an intercooler 9 are installed on the introduction side, and a lead-out side is connected to an air inlet side of the fuel cell 2. A first two-way valve V1 is installed near the fuel cell 2 in the supply line 5. A pair of connection terminals of the fuel cell 2 are connected to the vehicle drive motor 11 via a pair of conductors 10, and a pair of connection terminals of a motor driving auxiliary battery 12 are connected to the conductors 10 via a pair of conductors 13. The
[0010]
The reformed gas outlet side and the air outlet side of the fuel cell 2 are connected to the evaporator combustor 16 via the exhaust pipes 14 and 15 respectively, and the second two-way near the combustor 16 of the air exhaust pipe 15. Valve V2 is installed. One outlet side of the methanol tank 18 is connected to one inlet side of the evaporator 17 via a supply line 19, and a pump 20 is connected to the supply line 19. Further, the outlet side of the water tank 21 is connected to the other inlet side of the evaporator 17 via a supply line 22, and a pump 23 is installed in the supply line 22. The outlet side of the evaporator 17 is connected to the introduction side of the reformer 3 through a mixed steam supply pipe 24 made of methanol and moisture. The other outlet side of the methanol tank 18 is connected to a reformer start combustor 26 via another supply line 25. The pump 27 and the third second line are connected to the supply line 25 sequentially from the methanol tank 18 side. A direction valve V3 is provided. Further, in the supply line 25, the pump 27 and the third two-way valve V 3 are connected to the electric heater catalyzer 29 of the evaporator combustor 16 via a further supply line 28, and the electric heater in the supply line 28 is connected. A fourth two-way valve V4 is installed in the vicinity of the catalyzer 29. The reformer starting combustor 26 includes a heating circuit 33 having a glow plug 30, a battery 31, and a switch 32 existing between the glow plug 30 and the battery 31.
[0011]
From the reformer 3 side, the fifth two-way valve V5, the CO remover 34, the first three-way valve 3V1, the heat exchanger 35, the second three-way valve 3V2, and the flow meter 36 and a check valve V are installed. In the air supply line 5, the supply line 37 branched from the upstream side of the first two-way valve V1 in the vicinity of the fuel cell 2 is further branched into three to form the reformer start combustor 26, the reformer 3 and The sixth to eighth two-way valves V6 to V8 are connected to the CO remover 34, near the combustor 26, the reformer 3 and the CO remover 34 in the supply pipe 37, respectively. The air is used for combustion and temperature control in the combustor 26, and is used for temperature control in the reformer 3. Further, the CO remover 34 converts CO contained in the reformed gas into CO _2. Used to oxidize. The first three-way valve 3 </ b> V <b> 1 existing on the outlet side of the CO remover 34 is connected to the reformed gas discharge conduit 14 of the fuel cell 2 via the first bypass conduit 38.
[0012]
Further, in the reformed gas supply path 4, the second three-way valve 3 </ b> V <b> 2 existing on the downstream side of the heat exchanger 35 and the flow meter 36 and the check valve V are connected by a second bypass line 39. The flow meter 40, heat exchanger 41, moisture remover 42, ninth two-way valve V9, hydrogen storage-moving device 43, and tenth two-way are sequentially connected to the second bypass line 39 from the second three-way valve 3V2 side. Valve V10 and flow meter 44 are installed. The hydrogen storage-transfer device 43 has a so-called through-type tank having an inlet and an outlet. The inlet is upstream of the second bypass conduit 39 and the outlet is downstream of the second bypass conduit 39. Connected. A heating device 45 is attached to the hydrogen storage-moving device 43. The heating device 45 has a reformed gas distribution pipe 46, and the inlet side of the pipe 46 is connected between the reformer 3 and the fifth two-way valve V 5 in the reformed gas supply pipe 4. The outlet side is connected between the fifth two-way valve V5 and the CO remover 34. An eleventh two-way valve V11 is installed on the inlet side of the conduit 46.
[0013]
The hydrogen storage unit 47 stores the hydrogen generated by the reformer 3 in order to satisfy the required hydrogen amount of the fuel cell 2 when the reformer 3 cannot satisfy the first storage. Part 48 and a second storage part 50 connected in series via a connecting pipe 49 thereto. Hydrogen between the inlet of the first storage section 48 and the inlets of the ninth two-way valve V9 and the hydrogen storage-mover 43 in the second bypass conduit 39 is transferred from the hydrogen storage-mover 43 to the first storage section 48. The twelfth two-way valve V12 and the flow meter 52 are sequentially installed in the pipeline 51 from the hydrogen storage-moving device 43 side. The outlet of the second storage unit 50 is connected between the check valve V and the inlet of the fuel cell 2 in the reformed gas supply line 4 via the supply line 53. A thirteenth two-way valve V13, a flow meter 54, a regulator 55, and a flow control valve 56 are sequentially installed in the supply line 53 from the second storage unit 50 side.
[0014]
A heating circuit 60 having a heater 57, a battery 58, and a switch 59, and a cooling circuit 62 having a cooling unit 61 having a radiator, a water pump, a water tank, and the like are attached to the first storage unit 48.
[0015]
The tank of the hydrogen storage-transfer device 43 is filled with the first hydrogen storage alloy MH1. Further, the second hydrogen storage alloy MH2 is filled in the tank of the first storage unit 48 in the hydrogen storage 47. As shown in FIG. 2, the first hydrogen storage alloy MH1 has a characteristic that it absorbs hydrogen at about 60 ° C. and about 0.07 MPa, and releases about 5 MPa of hydrogen at about 200 ° C. As such a hydrogen storage alloy, for example, a LaNi _4.05 Co _0.6 Al _0.35 alloy is used. The second hydrogen storage alloy MH2 has a characteristic of storing hydrogen at 60 ° C. and about 1 MPa, and releasing hydrogen of about 2 MPa at 80 ° C. As such a hydrogen storage alloy, for example, an MmNi _4.01 Co _0.6 Mn _0.34 Al _0.05 (Mm: Misch metal) alloy is used.
[0016]
Therefore, at room temperature, the second storage unit 50 is filled with gaseous hydrogen released from the second hydrogen storage alloy MH2, and the gaseous hydrogen pressure is about 1 MPa or less. On the other hand, when the 1st storage part 48 is heated and the temperature of the 2nd hydrogen storage alloy MH2 becomes 80 degreeC or more, the gaseous hydrogen pressure in the 2nd storage part 50 is hold | maintained at a high state like about 2 MPa or more.
[0017]
The fuel cell 2, the vehicle drive motor 11, the switch 32 of the heating circuit 33 having the glow plug 30, the pumps 20, 23 and 27, the switch 59 of the heating circuit 60 having the heater 57, etc. turn on the start switch 63. Accordingly, the operation is controlled via the ECU 64, and the operation is disabled by turning off the start switch 63.
[0018]
A first means 65 for determining the required hydrogen amount of the fuel cell 2 is connected to the ECU 64. The first means 65 is, for example, a travel mode switching device, and the device 65 switches between a sport mode and an economy mode. That is, in order to improve the acceleration performance during acceleration in the sport mode, the fuel cell 2 requires more hydrogen for charging than during acceleration in the economy mode. Therefore, in the case of the sports mode, the heating circuit 60 of the first storage unit 48 in the hydrogen storage device 47 is closed and held by the control signal from the ECU 64, and the first storage unit 48 is heated. Therefore, the gas hydrogen pressure in the second storage unit 50 is kept high as described above. This increases the amount of hydrogen for sufficiency.
[0019]
On the other hand, when the mode is switched to the economy mode, it is not necessary to improve the acceleration, so the control circuit from the ECU 64 holds the heating circuit 60 of the first storage unit 48 in the hydrogen storage unit 47 in an open state. The gaseous hydrogen pressure in the second storage unit 50 is kept low as described above. As a result, the amount of hydrogen for sufficiency is smaller than that in the sport mode.
[0020]
Therefore, the ECU 64 and the heating circuit 60 constitute a second means for determining the amount of hydrogen to be discharged from the hydrogen reservoir 47 based on information from the travel mode switching device (first means) 65.
[0021]
Next, various modes will be described with reference to FIGS. 1 and 3 to 5.
[0022]
A. Start Mode Before the start of this mode, it is assumed that the gaseous hydrogen pressure in the second storage unit 50 of the hydrogen store 47 is maintained at about 1 MPa or less at room temperature. The first to thirteenth two-way valves V1 to V13 and the flow rate control valve 46 are in the “closed” state, and the first three-way valve 3V1 can supply the reformed gas to the evaporator combustor 16, that is, the combustor. On the other hand, the second three-way valve 3V2 is switched to the hydrogen storage-mover 43 side so that the reformed gas can be supplied to the hydrogen storage-transfer device 43.
[0023]
1 and 3, when the start switch 63 is turned on, the supercharger 8 is activated, the air passes through the air cleaner 6, the supercharger 8, and the intercooler 9, and the first two-way valve V1 is "open". The fuel cell 2 is supplied, and the sixth to eighth two-way valves V6 to V8 are “open” and supplied to the combustor 26, the reformer 3 and the CO remover 34 of the reformer 3, respectively. The air discharged from the fuel cell 2 is introduced into the evaporator combustor 16 when the second two-way valve V2 is “open”.
[0024]
When the electric heater catalyzer 29 of the evaporator combustor 16 is energized and its temperature rises, the pump 27 operates and the fourth two-way valve V4 is “open”, and methanol is injected into the electric heater catalyzer 29. Is combusted in the combustor 16 to heat the evaporator 17.
[0025]
The thirteenth two-way valve V13 is “open”, the supply hydrogen from the second storage unit 50 of the hydrogen storage 47 is adjusted to about 0.15 MPa by the regulator 55, and then the supply amount is adjusted by the flow control valve 56. After that, it is supplied to the fuel cell 2, which starts operation. The amount of hydrogen supplied from the second storage unit 50 is detected by the flow meter 54, and gaseous hydrogen is supplied from the first storage unit 48 as the amount of hydrogen in the second storage unit 50 decreases. Surplus hydrogen in the fuel cell 2 is introduced into the evaporator combustor 16 where it is burned and used to heat the evaporator 17.
[0026]
In the reformer starting combustor 26, the switch 32 of the heating circuit 33 having the glow plug 30 is closed and the glow plug 30 is energized. The third two-way valve V3 is “open”, methanol is injected into the combustor 26, and the reformer 3 is heated by the combustion of the methanol. When the gas temperature at the supply port of the reformer 3 is detected and reaches a predetermined value, the heating of the reformer 3 is completed, the switch 32 is opened, and the energization to the glow plug 30 is stopped.
[0027]
Methanol and water are injected into the evaporator 17 to generate a mixed steam composed of methanol and moisture, and the mixed steam is supplied to the reformer 3 for reforming.
[0028]
The reformed gas contains a considerable amount of CO, and the fifth two-way valve V5 is “open” and introduced into the CO remover 34, and then the first three-way valve 3V1 is switched to the combustor 16 side. Therefore, it is introduced into the combustor 16 through the first bypass line 38, where combustible components such as hydrogen are combusted.
[0029]
The CO concentration of the reformed gas is detected, or the CO concentration is checked from the relationship between the reformed gas temperature and the time. When the CO concentration falls below a predetermined value, the first and second three-way valves 3V1, 3V2 Switching to the fuel cell 2 side is performed, and the reformed gas is supplied to the fuel cell 2.
[0030]
The amount of reformed gas from the reformer 3 during the warm-up is not sufficient to operate the fuel cell 2, but the shortage is compensated by the hydrogen supplied from the second storage unit 50, thereby The output is stabilized. As the reformed gas amount increases, the hydrogen supply amount is gradually controlled to decrease.
[0031]
When the temperature and pressure of the reformed gas at the supply port of the reformer 3 reach about 200 ° C. and about 0.16 MPa, respectively, it is determined that the reformer 3 has reached the steady mode, and the second storage unit The thirteenth two-way valve V13 and the flow control valve 56 on the 50 side are closed, and thereafter, the operation mode shifts to the self-sustaining operation mode by the reformer 3.
[0032]
When the reformed gas passes through the heat exchanger 35 in which 50 ° C. cooling water is circulated, the temperature drops to about 80 ° C. and the pressure drops to about 0.15 MPa. Is used as fuel in the fuel cell 2.
[0033]
B. As shown in FIGS. 1 and 4, the second three-way valve 3 </ b> V <b> 2 is switched to the hydrogen storage-mover 43 side as the hydrogen storage mode starts.
[0034]
The temperature of the reformed gas in the second three-way valve 3V2 is about 80 ° C. and the pressure is about 0.15 MPa. The reformed gas is heated to 60 ° C. by the heat exchanger 41 in which 50 ° C. cooling water is circulated. Then, the moisture is removed by the moisture remover 42.
[0035]
When the ninth two-way valve V9 is “open”, a reformed gas of about 60 ° C. and about 0.07 MPa is introduced into the hydrogen storage-transfer device 43 , and the hydrogen is stored in the first hydrogen storage alloy MH1. This occlusion raises the temperature of the alloy MH1, but the temperature of the alloy MH1 is maintained at about 60 ° C. by the cooling action of the reformed gas.
[0036]
The reformed gas that has passed through the hydrogen storage-transfer device 43 is supplied to the fuel cell 2 through the check valve V when the tenth two-way valve V10 is “open”, and the operation is continued.
[0037]
The amount of hydrogen occluded in the hydrogen occlusion-mover 43 is detected based on the difference between the integrated flow rates of the flow meters 40, 44 on the inlet and outlet sides of the hydrogen occlusion-mover 43. When the hydrogen storage amount of the mobile device 43 has not reached the full state, the storage process is continued.
[0038]
When the hydrogen storage amount of the hydrogen storage-transfer device 43 reaches a full state, the second three-way valve 3V2 is switched to the fuel cell 2 side to shift to the hydrogen transfer mode.
[0039]
The ninth, tenth, and thirteenth two-way valves V9, V10, and V13 are “closed” and the twelfth two-way valve V12 is “open”, thereby allowing hydrogen to move. Further, after the eleventh two-way valve V11 is “open” and the fifth two-way valve V5 is “closed” and high-temperature reformed gas of about 200 ° C. flows through the heating device 45, the CO remover 34, heat exchange It is supplied to the fuel cell 2 through the vessel 35 and the like, and its operation is continued.
[0040]
As described above, the first hydrogen storage alloy MH1 of the hydrogen storage-transfer device 43 is heated by the exhaust heat of the reformer 3, and when the temperature rises to about 200 ° C. and the pressure rises to about 5 MPa, the stored hydrogen is released. The
[0041]
The second hydrogen storage alloy MH2 in the first storage section 48 is heated to about 60 ° C. by the heating circuit 60, and the hydrogen released from the hydrogen storage-transfer device 43 is stored in the second hydrogen storage alloy MH2 at about 60 ° C. and about 1 MPa. Is done. The temperature rise of the alloy MH2 due to the occlusion is suppressed by the cooling circuit 62, and the temperature is maintained at about 60 ° C.
[0042]
When the flow meter 52 of the moving line 51 detects that the hydrogen storage amount of the hydrogen storage-moving device 43 exceeds 70% of the full amount, the fifth two-way valve V5 is “open”, Further, the eleventh two-way valve V11 is “closed”, and the heating of the hydrogen storage-moving device 43 is stopped. From the transfer device 43, the release of hydrogen is continued by the endothermic reaction of the first hydrogen storage alloy MH1 using the residual heat. Thereby, the temperature of the hydrogen storage-moving device 43 can be lowered, and the time lag when restarting the next hydrogen storage mode can be reduced.
[0043]
When the integrated flow rate of the flow meter 52 of the moving line 51 reaches the full amount of the hydrogen storage-moving device 43, the twelfth two-way valve V12 is “closed” and the hydrogen to the first storage unit 48 is closed. The movement is stopped. At this point, the hydrogen storage amount in the first storage unit 48 is full.
[0044]
C. Acceleration Mode As shown in FIGS. 1 and 5, after the operation of the fuel cell 2 is started, the switching state of the travel mode switching device 65 is confirmed.
[0045]
When the traveling mode switching device 65 is switched to the sport mode, the first storage unit 48 is heated to 80 ° C. or more by the heater 57 and is maintained at that temperature. As a result, hydrogen is released from the second hydrogen storage alloy MH2, and the gaseous hydrogen pressure in the second storage unit 50 is maintained at about 2 MPa or more.
[0046]
On the other hand, in the economy mode, the heating is not performed.
[0047]
When the accelerator operation amount exceeds a predetermined value, the acceleration mode is entered.
[0048]
When the second three-way valve 3V2 is not switched to the fuel cell 2 side, switching to the fuel cell 2 side is performed, and the tenth two-way valve V10 is closed.
[0049]
The thirteenth two-way valve V13 is “open”, and the hydrogen for filling in the second storage unit 50 is adjusted by the regulator 55 and the flow rate control valve 56 so as to conform to the sport mode or economy mode, and then supplied to the fuel cell 2 Is done.
[0050]
Whether or not the amount of hydrogen for sufficiency is sufficient is determined using the flow meter 54. If the amount is not sufficient, the first storage unit 48 is heated until reaching a preset temperature. Be compensated.
[0051]
The acceleration mode ends when the accelerator operation amount becomes equal to or less than a predetermined value.
[0052]
As the first means, it is also possible to use a gear shift switching device instead of the travel mode switching device 65. In this case, in the 2nd speed and 3rd speed fixed mode, the first storage section 48 is heated to improve acceleration performance, while in the D4 mode, the heating is not performed.
[0053]
Further, as the first means, an electric energy remaining amount detecting device can be used in place of the traveling mode switching device 65. This device corresponds to, for example, a remaining charge detection device 66 for the amount of charge in the auxiliary battery 12 of the vehicle drive motor 11 as shown in FIG. In this case, when the remaining amount of charge is small, the first storage unit 48 is heated to reduce the assist output of the auxiliary battery 12 or improve the acceleration performance in the absence of output, The heating is not performed when the remaining amount of charge is large.
[0054]
FIG. 6 shows an example of the hydrogen reservoir 47. In this example, the small and large-diameter tanks 67 and 68 of the first and second storage parts 48 and 50 are arranged in parallel, and the inlet pipe 69 of the first storage part 48 and the outlet pipe 70 of the second storage part 50 are arranged. The outlet pipe 71 of the first storage section 48 and the inlet pipe 72 of the second storage section 50 are connected by a connection pipe 73. The small-diameter tank 67 is filled with the second hydrogen storage alloy MH2, and the tank 67 is provided with a part of the heater 57 and the cooling circuit 62, which are omitted in the drawing.
[0055]
FIG. 7 shows another example of the hydrogen storage 47. In this example, the small-diameter tank 74 of the first storage unit 48 is installed in the large-diameter tank 75 of the second storage unit 50 with a large space between the inner surface and one end of the small-diameter tank 74. Is supported by one end wall 76 of the large-diameter tank 75. An inlet pipe 77 of the small diameter tank 74 and an outlet pipe 78 of the large diameter tank 75 protrude from the end wall 76 to the outside. The small-diameter tank 74 is filled with the second hydrogen storage alloy MH2, and a filter 79 for holding the alloy MH2 in the small-diameter tank 74 and allowing hydrogen to pass therethrough is provided on the outlet side at the other end. The small-diameter tank 74 is provided with a part of the heater 57 and the cooling circuit 62, which are omitted in the drawing.
[0056]
【The invention's effect】
According to the first aspect of the present invention, when the required hydrogen amount of the fuel cell cannot be satisfied by the hydrogen supply source, the hydrogen that can be stored from the hydrogen supply source in order to satisfy the hydrogen amount is satisfied. A first means for determining the amount of hydrogen required for the fuel cell; and a second means for determining the amount of hydrogen to be discharged from the hydrogen reservoir according to information from the first means. The vessel is connected in series to the first storage part having a hydrogen storage alloy for storing hydrogen supplied from the hydrogen supply source, and from the hydrogen storage alloy of the first storage part. supplied to the fuel cell to store the released gaseous hydrogen, since it is configured to have a second storage unit having no hydrogen storage alloy, the necessary amount of hydrogen fuel cells, as determined accordingly It is satisfied by fulfillment for hydrogen amount in the amount An ability, yet can be the fulfillment for hydrogen, to provide a vehicle hydrogen supply apparatus that can be supplied quickly to the fuel cell from the second reservoir tank shaped without a hydrogen storage alloy.
[0057]
According to the second aspect of the present invention, it is possible to provide a vehicular hydrogen supply device that can rapidly supply a sufficient amount of hydrogen for the driving mode or gear shift of the vehicle.
[0058]
According to the third aspect of the present invention, it is possible to provide the vehicle hydrogen supply device that can reliably compensate for the shortage of the output of the electric energy generation source, for example, the battery, by the output of the fuel cell.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a hydrogen supply system.
FIG. 2 is a hydrogen absorption / release characteristic diagram of the first and second hydrogen storage alloys.
FIG. 3 is a flowchart of a start mode.
FIG. 4 is a flowchart of a hydrogen storage / hydrogen transfer mode.
FIG. 5 is a flowchart of an acceleration mode.
FIG. 6 is a plan view of an example of a hydrogen reservoir.
FIG. 7 is a cross-sectional plan view of another example of a hydrogen reservoir.
[Explanation of symbols]
1 ………………… Hydrogen supply device 2 ………………… Fuel cell 3 ………………… Reformer (hydrogen supply source)
47 ……………… Hydrogen storage device 48 ……………… First storage unit 50 ……………… Second storage unit 60, 64 ……… Heating circuit, ECU (second means)
65 ……………… Running mode switching device (first means)
66 ……………… Remaining charge amount detection device (first means)
MH2 ……………… Second hydrogen storage alloy

Claims (3)

In a hydrogen supply device comprising a hydrogen supply source (3) for supplying hydrogen to a fuel cell (2) mounted on a vehicle,
When the required hydrogen amount of the fuel cell (2) cannot be satisfied by the hydrogen supply source (3), it is possible to store the hydrogen supplied from the hydrogen supply source (3) to satisfy it. A hydrogen storage device (47), a first means (65, 66) for determining the amount of hydrogen required for the fuel cell (2), and the hydrogen storage device (65, 66) according to information from the first means (65, 66). 47) a second means (60, 64) for determining the amount of sufficiency hydrogen released from
The hydrogen reservoir (47), the hydrogen source first storage portion with a hydrogen storage alloy (MH2) for storing the supplied hydrogen from (3) and (48), the first storage section thereof ( connected in series to the 48), said first reservoir (supplied before Symbol fuel cell to store the released gaseous hydrogen from the hydrogen storage alloy (MH2) 48) (2), hydrogen storage alloy (MH2) A hydrogen supply device for a vehicle equipped with a fuel cell, comprising: a second storage unit (50) not provided with the fuel cell.  The hydrogen supply device for a vehicle equipped with a fuel cell according to claim 1, wherein the first means is one of a vehicle travel mode switching device (65) and a gear shift switching device.  2. The hydrogen supply apparatus for a vehicle equipped with a fuel cell according to claim 1, wherein the first means is an electric energy remaining amount detection device (66).

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