JP2007129872A - Fuel cell vehicle and fuel supplying method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the compartment space of a vehicle, reduce restriction on the design of a fuel cell stack, and increase the power of the vehicle. <P>SOLUTION: A fuel cell vehicle includes a vehicle body 60; wheels 21 rotatably supported by the vehicle body 60; the fuel cell stack placed in a wheel 21; a fuel tank 41 that is mounted in the vehicle body 60, and stores fuel to be supplied to the fuel cell stack; means for determining whether or not a connecting condition is met; and means that, when the coupling condition is met, connects the fuel cell stack and the fuel tank 41 together. Consequently, the compartment space of the vehicle can be increased and restriction on the design of the fuel cell stack can be reduced. Since the dimensions of the fuel cell stack are not limited, the power of the vehicle can be increased. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fuel cell vehicle and a fuel supply method thereof.

  Conventionally, in a fuel cell-equipped vehicle, that is, a vehicle equipped with a fuel cell, electric power generated by the stacked fuel cell is supplied as current to a drive motor, and driving the drive motor generates torque. It is supposed to be.

  For this purpose, an in-vehicle fuel cell system is provided in the vehicle, and the in-vehicle fuel cell system is a fuel tank in which high-pressure hydrogen gas or liquid hydrogen is stored, hydrogen gas is supplied from the fuel tank, and air is supplied. , A fuel cell stack constituting the fuel cell, a condenser for condensing the steam in the mixed flow composed of air, steam and water discharged from the fuel cell stack.

  By the way, since the said vehicle-mounted fuel cell system is arrange | positioned at the main body of a vehicle, ie, a vehicle main body, the indoor space of a vehicle will become narrow by that much.

Therefore, an in-vehicle fuel cell system is provided in which a fuel cell stack is disposed at the center of the axle at the lower part of the vehicle (see, for example, Patent Document 1).
JP 2001-102081 A

  However, in the conventional vehicle, since the fuel cell stack is disposed in the lower part of the vehicle, the design restrictions on the fuel cell stack are large.

  Therefore, it is conceivable to dispose the fuel cell stack and the fuel tank in the wheel. In this case, however, the dimensions of the fuel cell stack and the fuel tank are limited, so that the output of the vehicle cannot be increased.

  The present invention solves the problems of the conventional vehicle, can widen the interior space of the vehicle, can reduce the constraints on the design of the fuel cell stack, and can increase the output of the vehicle. An object of the present invention is to provide a vehicle equipped with a fuel cell and a fuel supply method thereof.

  Therefore, in the vehicle equipped with the fuel cell of the present invention, the vehicle main body, the wheel rotatably supported by the vehicle main body, the fuel cell stack disposed in the wheel of the wheel, and the vehicle main body are mounted. A fuel tank for storing fuel to be supplied to the fuel cell stack, connection condition establishment determination processing means for determining whether a connection condition is established, and the fuel cell stack when the connection condition is established And a connecting processing means for connecting the fuel tank.

  In another fuel cell vehicle according to the present invention, the connection condition establishment determination processing means determines that the connection condition is established when the fuel cell vehicle is stopped.

  Still another fuel cell-equipped vehicle of the present invention further includes an interrupting mechanism for interrupting the fuel supply path between the vehicle main body side and the wheel side.

  The intermittent mechanism is disposed between the first valve disposed on the vehicle body side, the second valve disposed on the wheel side, and the first and second valves, and a pipe line A connecting device is provided for contacting and separating.

  In still another fuel cell vehicle according to the present invention, a drive motor is disposed on the axle in the wheel.

  In the fuel supply method for a vehicle equipped with a fuel cell according to the present invention, the vehicle main body, a wheel rotatably supported by the vehicle main body, a fuel cell stack disposed in the wheel of the wheel, and the vehicle main body are mounted. The present invention is applied to a fuel cell vehicle having a fuel tank for storing fuel to be supplied to the fuel cell stack.

  Then, it is determined whether or not a connection condition is satisfied. When the connection condition is satisfied, the fuel cell stack and the fuel tank are connected.

  According to the present invention, in a fuel cell-equipped vehicle, the vehicle main body, a wheel rotatably supported by the vehicle main body, a fuel cell stack disposed in the wheel of the wheel, and the vehicle main body are mounted. A fuel tank for storing fuel to be supplied to the fuel cell stack, connection condition establishment determination processing means for determining whether a connection condition is established, and the fuel cell stack when the connection condition is established And a connecting processing means for connecting the fuel tank.

  In this case, since the fuel cell stack is disposed in the wheel of the wheel and it is not necessary to dispose a fuel tank, the vehicle interior space can be widened, and the design constraints of the fuel cell stack are reduced. be able to. Further, the size of the fuel cell stack is not limited. Therefore, the output of the vehicle can be increased.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a diagram showing an in-vehicle fuel cell system according to the embodiment of the present invention.

  In the figure, reference numeral 11 denotes a stacked fuel cell, and in this embodiment, a fuel cell stack constituting a polymer electrolyte fuel cell (PEFC). The fuel cell stack 11 is a passenger car, bus, truck, passenger car. In this embodiment, predetermined wheels among wheels of a vehicle such as a cart and a luggage cart, and in this embodiment, all wheels are mounted as an energy supply source. In this case, electric power generated by the fuel cell stack 11 is supplied as a current to a drive motor (not shown), and torque is generated by driving the drive motor so that each wheel is rotated. .

  Reference numeral 14 denotes a hydrogen gas supply system as a fuel supply system for supplying hydrogen gas as fuel to the fuel cell stack 11, and 22 denotes air as a medium to the fuel cell stack 11 and as an oxidant. , And a manifold for discharging a mixed flow of air, steam and water from the fuel cell stack 11. The fuel cell stack 11, the hydrogen gas supply system 14, and the manifold 22 constitute an in-vehicle fuel cell system.

  In the present embodiment, a polymer electrolyte fuel cell is used as the fuel cell used in the fuel cell stack 11, but instead of the polymer electrolyte fuel cell, phosphoric acid type A fuel cell (PAFC), a solid oxide fuel cell (SOFC), a hydrazine fuel cell, a direct methanol fuel cell (DMFC), or the like can be used.

  The fuel cell stack 11 includes a plurality of modules (not shown) and an insulator formed of an insulating material and disposed between the modules. The insulators constitute a pair of illustrations that constitute terminals of the fuel cell stack 11. With a terminal that is not.

  Meanwhile, in each of the modules, hydrogen in the hydrogen gas supplied by the hydrogen gas supply system 14 and oxygen contained in the air supplied through the manifold 22 are reacted to generate water, A current is generated with the reaction. For this purpose, the module is composed of an assembly formed by stacking a plurality of thin membrane unit cells constituting elements of the fuel cell stack 11 and electrically connecting them in series.

  Each unit cell is made of a solid polymer, and in the present embodiment, an air electrode composed of a diffusion layer and a fuel electrode composed of a reaction layer with an electrolyte membrane serving as a solid electrolyte that permeates ions, hydrogen ions in this embodiment. The membrane electrode assembly formed by disposing the (hydrogen electrode) and the membrane electrode assembly of the adjacent unit cell are separated from each other, and the air channel is faced to the air electrode. A separator that forms a fuel flow path facing the fuel electrode is provided, and the air flow path and the manifold 22 are communicated with each other.

  In order to promote the reaction between hydrogen and oxygen, the surface of the air electrode and the fuel electrode in contact with the electrolyte membrane contains a certain amount of a paste material obtained by mixing a platinum-based catalyst and a solid polymer with carbon. The catalyst layer is formed by uniformly dispersing in thickness. Note that an oxygen electrode may be used instead of the air electrode, and pure oxygen as a medium and as an oxidant may be supplied to the fuel cell stack 11.

  The entire surface of the separator facing the fuel electrode is adhered and sealed to the adjacent membrane electrode assembly with an adhesive. Therefore, a plurality of protrusions are formed inside the sealed portion so as to protrude in a matrix, and a plurality of horizontal fuel flow paths for supplying hydrogen gas to the fuel electrode are formed between the protrusions. The Reference numeral 71 denotes a voltage sensor (V) as a plurality of voltage detectors for detecting an electromotive voltage of the fuel cell stack 11.

  The hydrogen gas supply system 14 is connected to a fuel tank 41 as a fuel supply device in which high-pressure hydrogen gas or liquid hydrogen is stored. The hydrogen gas discharged from the fuel tank 41 is supplied to the fuel cell stack 11. A first fuel supply path 51 for supplying to the fuel cell, a second fuel supply path 52 connecting the first fuel supply path 51 and the fuel cell stack 11, and the second fuel supply path 52 A fuel return path 53 that is formed in parallel, connects between the first fuel supply path 51 and the fuel cell stack 11 and returns hydrogen gas, and is connected to the fuel return path 53 and discharges hydrogen gas. A discharge path 54 and the like are provided. The fuel tank 41 is disposed in a main body of the vehicle, that is, a predetermined portion of the vehicle main body, for example, a lower portion of the vehicle. When the high-pressure hydrogen gas is stored in the fuel tank 41, the pressure in the fuel tank 41 is about 10 atm. When the liquid hydrogen is stored in the fuel tank 41, the pressure in the fuel tank 41 is about 1 atm. Is done.

  Then, the first pressure for detecting the pressure (primary pressure) of the hydrogen gas discharged to the first fuel supply path 51 from the fuel tank 41 side to the fuel cell stack 11 side in the first fuel supply path 51. A hydrogen gas pressure sensor (P) 42 as a detector, a pressure regulating valve 43A as a first fuel supply pressure adjusting unit that adjusts the pressure of the hydrogen gas discharged to the first fuel supply path 51, and the fuel cell stack 11 An on-off valve 44A as a first fuel supply amount adjusting unit that adjusts the supply amount of hydrogen gas to the fuel, and a second fuel supply pressure adjusting unit that further adjusts the pressure of the hydrogen gas adjusted by the pressure regulating valve 43A The pressure regulating valve 43B, the on / off valve 44B as a second fuel supply amount adjusting unit for further adjusting the supply amount of hydrogen gas adjusted by the on / off valve 44A, and the fuel cell stack are adjusted by the on / off valve 44B. 11 hydrogen gas pressure sensor (P) 45 as a second pressure detector for detecting the pressure of the hydrogen gas immediately before being supplied (secondary pressure) is disposed.

  The on-off valves 44 </ b> A and 44 </ b> B not only adjust the supply amount of hydrogen gas but also supply or shut off hydrogen gas to the fuel cell stack 11. The pressure regulating valves 43A and 43B are disposed in order to lower the hydrogen gas pressure stepwise, but three or more pressure regulating valves may be disposed as necessary.

  An interrupting mechanism 30 for interrupting the first fuel supply path 51 between the vehicle main body side and the wheel side is disposed downstream of the hydrogen gas pressure sensor 45 in the first fuel supply path 51. Established. The intermittent mechanism 30 includes an on-off valve 33 as a first valve disposed on the vehicle body side, an on-off valve 34 as a second valve disposed on the wheel side, and the on-off valves 33, 34. A connecting device 35 is provided for connecting and separating the pipes.

  The fuel return path 53 is provided with a hydrogen concentration sensor (C) 46, a suction pump 47, and a check valve 48 as a fuel concentration detector from the fuel cell stack 11 side to the fuel tank 41 side. The stop valve 48 and the first fuel supply path 51 are connected. The check valve 48 allows hydrogen gas to flow from the suction pump 47 side to the hydrogen gas pressure sensor 45 side, and prevents hydrogen gas from flowing from the hydrogen gas pressure sensor 45 side to the suction pump 47 side.

  The fuel discharge path 54 is connected between the suction pump 47 and the check valve 48 in the fuel return path 53, and the check valve 55 and the discharge are sequentially connected to the fuel discharge path 54 from the fuel return path 53 side. An electromagnetic valve 56 is provided. The check valve 55 allows hydrogen gas to flow from the suction pump 47 side to the discharge electromagnetic valve 56 side, and prevents hydrogen gas from flowing from the discharge electromagnetic valve 56 side to the suction pump 47 side.

  In the present embodiment, the fuel tank 41 is used as a fuel supply device, but instead of the fuel tank 41, a hydrogen storage alloy filled with hydrogen gas is accommodated. A hydrogen storage alloy tank can be used. In that case, since the hydrogen storage alloy has the property of releasing hydrogen gas at room temperature and storing hydrogen gas at low temperature, the pressure of the hydrogen gas is adjusted only by changing the opening of the pressure regulating valves 43A and 43B. be able to. In a cold region, the vehicle is placed in a very low temperature environment, so that the hydrogen storage alloy does not release hydrogen gas. Therefore, when the temperature of the outside air becomes lower than the set value, a heater (not shown) as a heating unit is energized and the hydrogen storage alloy is heated.

  In addition, it is possible to generate and supply hydrogen gas by reforming methanol, gasoline, etc. by a reformer, but it is possible to supply a sufficient amount of hydrogen gas stably even during high-load operation of the vehicle. In order to do so, the fuel tank 41 is preferably used.

  Next, the mounting state of the fuel cell stack 11 will be described.

  FIG. 3 is a perspective view showing a mounted state of the fuel cell stack according to the embodiment of the present invention.

  In the figure, reference numeral 11 denotes a fuel cell stack that is rotatably arranged. The fuel cell stack 11 is radially arranged at an equal pitch angle in the circumferential direction of the fuel cell stack 11, and is rectangular. A plurality of stack portions Sti (i = 1, 2,..., N) formed in a rectangular parallelepiped shape by stacking unit cells having a (<) shape in the radial direction, and between the stack portions Sti Is formed with a gap 31 having a V-shaped cross section. Each stack portion Sti forms a spoke portion of the wheel 21 that is rotatably supported with respect to the vehicle body.

  Reference numeral 23 denotes a wheel made of an annular body that is rotatably arranged with respect to the vehicle body and is attached to an axle (not shown). The wheel 23 divides the wheel 21 into an inner side and an outer side in the radial direction, The fuel cell stack 11, the manifold 22 (FIG. 2), the second fuel supply path 52, the fuel return path 53, the fuel discharge path 54, the drive motor 65 as an electric machine, and the like are accommodated inside the wheel 23. A tire 24 is attached to the outside of the tire 23. The drive motor 65 is disposed on the axle of each wheel 23, is driven by receiving the current supplied from the fuel cell stack 11, generates rotation, and transmits it to the wheel. A wheel cap (not shown) is attached outside the tire 24 radially inward to surround the fuel cell stack 11, and the wheel cap damages the fuel cell stack 11 and the drive motor 65. Protect from being.

  In the present embodiment, the outer end surface Sf of each stack portion Sti functions as an air intake and manifold 22 as a supply / discharge port, and air can be taken in from the entire end surface Sf. Further, the other end surface Sr of each stack portion Sti functions as a mixed flow discharge port, and the mixed flow can be discharged from the entire end surface Sr.

  By the way, in each unit cell of each stack part Sti, it is preferable to form an air electrode inside in the radial direction and a fuel electrode outside. When current is generated using the in-vehicle fuel cell system, normally, as hydrogen ions permeate the electrolyte membrane, water moves from the fuel electrode side to the air electrode side, and the fuel electrode side tends to dry. Put in state.

  However, in the present embodiment, as the wheel 21 rotates, centrifugal force is applied to the water in the electrolyte membrane, and the wheel 21 moves from the air electrode side to the fuel electrode side. Therefore, the fuel electrode side can be prevented from drying, and the efficiency of the fuel cell stack 11 can be increased.

  In addition, a current collecting ring 32 is disposed at the center of the outer end face of the fuel cell stack 11 so as to surround the drive motor 65 and as an annular body made of a material having high electrical conductivity. The current collecting ring 32 functions as a current collecting device in addition to functioning as a presser for pressing the fuel cell stack 11 from the side surface. The current collecting ring 32 is on the positive polarity side and the current generated by the fuel cell stack 11 can be taken in with the wheel 23 on the negative polarity side.

  Thus, since the fuel cell stack 11 is disposed in the wheel 23 and the fuel tank 41 does not need to be disposed, the vehicle interior space can be widened, and the design constraints of the fuel cell stack 11 Can be reduced. Further, the size of the fuel cell stack 11 is not limited. Therefore, the output of the vehicle can be increased.

  Furthermore, since the fuel tank 41 can be disposed at one place in the vehicle main body, it becomes easy to supply hydrogen gas to the fuel tank 41. In addition, since the fuel tank 41 can be designed regardless of the dimensions of the wheel 23, the capacity of the fuel tank 41 can be increased and the cruising distance can be increased.

  Next, the mounting state of the fuel tank 41 and the hydrogen gas supply method will be described.

  FIG. 1 is a conceptual diagram showing a first state of a vehicle in an embodiment of the present invention, FIG. 4 is a perspective view showing a main part of the vehicle in the embodiment of the present invention, and FIG. 5 is in the embodiment of the present invention. Fig. 6 is a conceptual diagram showing a second state of the vehicle, Fig. 6 is a control block diagram of the vehicle in the embodiment of the present invention, Fig. 7 is a diagram showing a connection release state of the coupling device in the embodiment of the present invention, and Fig. 8 The figure which shows the connection state of the connection apparatus in embodiment of this invention, FIG. 9 is a figure which shows the state at the time of transfer to the connection cancellation | release state of the connection apparatus in embodiment of this invention.

  In the figure, 21 is a wheel, 60 is a vehicle main body, 61 is disposed on the vehicle main body 60, and a wheel support for supporting each wheel 21, 63 is an upper arm, 64 is a first lower arm, 66 is a second lower arm, 67 is a toe control arm, 72 is a spring as an urging member, and 73 is a shock absorber as an impact absorber.

  Further, 35 is an electromagnetic coupling device that selectively couples the pipes of the vehicle body 60 and the wheels 21, 41 is a fuel tank, 75 is a valve housing unit that houses the on-off valve 33 (FIG. 2), and 76 is A fuel supply pipe that extends from the on-off valve 33 toward each wheel 21 and supplies hydrogen gas to the fuel cell stack 11. The fuel supply pipe 76 is extendable and contractible at the tip thereof by a bellows. 77. Hydrogen gas from the fuel tank 41 enters the wheel 21 through the fuel supply pipe 76 and is supplied to the fuel cell stack 11.

  By the way, since each wheel 21 rotates with respect to the vehicle main body 60 while the vehicle is traveling, when the hydrogen gas is supplied from the fuel tank 41 to each fuel cell stack 11, it slides with the rotation. ) Hydrogen gas may leak at the rotating sliding part.

  Therefore, in the present embodiment, hydrogen gas is supplied from each fuel tank 41 to each fuel cell stack 11 only when the vehicle is stopped, and each fuel tank 41 when the vehicle is running. Therefore, hydrogen gas is not supplied to each fuel cell stack 11.

  For this purpose, as shown in FIG. 6, a control unit 81 is provided. The control unit 81 includes a solenoid SL1 for opening and closing the on-off valve 33, a solenoid SL2 for opening and closing the on-off valve 34, and a connecting device. At 35, a solenoid SL3 for moving the engagement / disengagement element 84 as a moving member, a drive motor (M) 65, a vehicle speed sensor 82 as a vehicle speed detection unit, and the like are connected.

  Further, as shown in FIG. 7, a tubular tube member 101 as a first connecting element and as a male element is formed to protrude from the wheel support 61 toward the vehicle body 60, The tube member 101 and each stack part Sti (FIG. 3) of the fuel cell stack 11 are communicated with each other via an on-off valve 34. An annular protrusion 102 as a first engagement portion is formed on the outer peripheral surface of the tube member 101.

  In addition, a tubular tube unit 103 as a second connecting element and as a female element is attached to the distal end of the stretchable portion 77. The pipe unit 103 is attached with a pipe member 105 and O-rings 106 and 107 as first and second seal members disposed at the end of the pipe member 105 on the side of the expansion / contraction part 77. An annular fastening ring 111 as a fastening member made of a flexible material is disposed at the distal end portion in the tube member 105 so as to be movable in the axial direction.

  The fastening ring 111 includes a tubular portion 113 and a flange portion 114 formed to project radially outward at an end of the tubular portion 113 on the wheel 21 side. An annular bulging portion 115 as a second engaging portion is formed at the end of the telescopic portion 77 so as to be engageable with the protrusion 102.

  The engagement / disengagement element 84 is movably disposed outside the pipe member 101 and the pipe unit 103 in the radial direction. The engagement / disengagement element 84 includes a movable element 121 that extends in the axial direction, and a connection formed by projecting toward the tube member 101 at the end of the movable element 121 on the tube member 101 side. The release portion 122 and the connecting portion 123 formed to protrude toward the tube unit 103 are provided at the end of the moving member 121 on the tube unit 103 side.

  A connection condition establishment determination processing unit (not shown) of the control unit 81 performs a connection condition establishment determination process, and determines whether or not the connection condition is established depending on whether or not the vehicle is stopped. Therefore, the connection condition establishment determination processing means reads the vehicle speed detected by the vehicle speed sensor 82, determines whether or not the vehicle speed is lower than a predetermined threshold (threshold value), and if the vehicle speed is lower than the threshold, the vehicle stops. If it is determined that the connection condition is satisfied and the vehicle speed is equal to or higher than the threshold, it is determined that the vehicle is traveling and the connection condition is not satisfied. When the connection condition is satisfied, a connection processing unit (not shown) of the control unit 81 performs a connection process, drives the solenoid SL3, and moves the engagement / disengagement element 84 toward the wheel 21 side. Accordingly, the connecting portion 123 is locked to a predetermined portion of the pipe member 105, in this embodiment, the end on the side of the expansion / contraction section 77, and the pipe member 105 is attached to the wheel 21 while extending the expansion / contraction section 77. Move towards the side.

  Then, as shown in FIG. 8, the pipe member 101 enters the pipe member 105, and the protrusion 102 pushes the bulging portion 115 of the cylindrical portion 113 outward in the radial direction, thereby bulging the bulging portion 115. When the tube member 101 moves over and the tip of the tube member 101 abuts on the O-ring 107, the engagement / disengagement element 84 is stopped. At this time, the outer peripheral surface of the tube member 101 is sealed by the O-ring 106, and the tip of the tube member 101 is sealed by the O-ring 107.

  In this way, the connecting device 35 can be placed in the connected state, and the fuel tank 41 and the wheel 21 are connected as shown in FIG.

  Next, fuel supply processing means (not shown) of the control unit 81 performs fuel supply processing, drives the solenoids SL1 and SL2, and opens the on-off valves 33 and 34. Accordingly, the hydrogen gas supplied from the fuel tank 41 is sent to the fuel cell stack 11.

  In this state, when the driver depresses an accelerator pedal (not shown), the drive motor 65 is driven, and the vehicle is started and run. Accordingly, when the vehicle speed becomes equal to or higher than a predetermined threshold value, the connection condition establishment determination processing means determines that the vehicle is traveling and the connection condition is not satisfied. The fuel supply processing means stops the driving of the solenoids SL1 and SL2 and closes the on-off valves 33 and 34. Accordingly, the supply of hydrogen gas to the fuel cell stack 11 is interrupted.

  Subsequently, a connection release processing means (not shown) of the control unit 81 performs a connection release process, drives the solenoid SL3, and moves the engagement / disengagement element 84 toward the expansion / contraction part 77 side. Accordingly, the connecting portion 123 is locked to a predetermined portion of the tube member 105, in the present embodiment, at the end on the wheel 21 side, and the tube member 105 is retracted while the expandable portion 77 is contracted. Move towards the side.

  Then, as shown in FIG. 9, the tube member 101 is retracted from the inside of the tube member 105, and the projection 102 spreads the bulging portion 115 of the cylindrical portion 113 outward in the radial direction, thereby As shown in FIG. 7, when the tip of the tube member 101 moves away from the tube unit 103, the engagement / disengagement element 84 is stopped.

  In this way, the connecting device 35 can be placed in the disconnected state, and the connection between the fuel tank 41 and the wheel 21 is released as shown in FIG.

  As described above, since the connection between the fuel tank 41 and the wheel 21 is released during traveling of the vehicle, the rotation of the wheel 21 is not hindered by the fuel supply pipe 76. Further, when the vehicle is running, the hydrogen gas in the fuel tank 41 is not supplied to the fuel cell stack 11, so that the hydrogen gas does not leak.

  Since the fuel supply pipe 76 and the wheel 21 are connected while the vehicle is stopped, the connection can be performed firmly. Therefore, even if the pressure of hydrogen gas is high, hydrogen gas does not leak.

  In the present embodiment, a connecting device 35 that is operated by driving the solenoid SL3 is used. Instead of the connecting device 35, a screw-type connecting device, a mechanical coupling, or the like is used. Can be used.

  Further, in the present embodiment, it is determined whether or not the connection condition is satisfied depending on whether or not the vehicle is stopped, but the connection condition is satisfied depending on whether or not the vehicle is turning. It can be determined whether or not. In that case, the connection condition establishment determination processing means reads the rudder angle detected by the rudder angle sensor as the rudder angle detector, determines whether or not the rudder angle is smaller than the threshold, and if the rudder angle is smaller than the threshold, Is determined not to turn, and it is determined that the connection condition is satisfied.

It is a conceptual diagram which shows the 1st state of the vehicle in embodiment of this invention. It is a figure which shows the vehicle-mounted fuel cell system in embodiment of this invention. It is a perspective view which shows the mounting state of the fuel cell stack in embodiment of this invention. It is a perspective view which shows the principal part of the vehicle in embodiment of this invention. It is a conceptual diagram which shows the 2nd state of the vehicle in embodiment of this invention. It is a control block diagram of the vehicle in the embodiment of the present invention. It is a figure which shows the connection cancellation | release state of the connection apparatus in embodiment of this invention. It is a figure which shows the connection state of the connection apparatus in embodiment of this invention. It is a figure which shows the state at the time of transfer to the connection cancellation | release state of the connection apparatus in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Fuel cell stack 21 Wheel 23 Wheel 30 Intermittent mechanism parts 33 and 34 On-off valve 35 Connection apparatus 41 Fuel tank 51 First fuel supply path 60 Vehicle main body 65 Drive motor 81 Control part

Claims (5)

  A vehicle main body, a wheel rotatably supported by the vehicle main body, a fuel cell stack disposed in the wheel of the wheel, and a fuel mounted on the vehicle main body and supplied to the fuel cell stack A fuel tank for storing; a connection condition establishment determination processing means for determining whether or not a connection condition is satisfied; and a connection processing means for connecting the fuel cell stack and the fuel tank when the connection condition is satisfied. A vehicle equipped with a fuel cell.   The fuel cell vehicle according to claim 1, wherein the connection condition establishment determination processing means determines that the connection condition is established when the fuel cell vehicle is stopped.   An intermittent mechanism portion for intermittently connecting the fuel supply path between the vehicle main body side and the wheel side is provided, and the intermittent mechanism portion is disposed on the wheel side, a first valve disposed on the vehicle main body side. 2. The fuel cell vehicle according to claim 1, further comprising: a second valve, and a connecting device disposed between the first and second valves for connecting and separating the pipes.   The fuel cell-equipped vehicle according to claim 1, wherein a drive motor is disposed on an axle in the wheel. A vehicle main body, a wheel rotatably supported by the vehicle main body, a fuel cell stack disposed in the wheel of the wheel, and a fuel mounted on the vehicle main body and supplied to the fuel cell stack are stored In a fuel supply method for a fuel cell-equipped vehicle having a fuel tank, it is determined whether a connection condition is satisfied, and the fuel cell stack and the fuel tank are connected when the connection condition is satisfied. A fuel supply method for a vehicle equipped with a fuel cell.

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