JP2010144771A - Device for filling fuel and system for filling fuel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten fuel gas filling time by supplying the fuel gas of appropriate flow rate from an accumulator suitable for temperature and pressure of a filling destination. <P>SOLUTION: The device for filling fuel includes: a plurality of accumulators 20A-20C storing hydrogen of different pressures; shut off valves 21A-21C for shutting off or allowing supply of hydrogen from the accumulator 20A-20C; a regulating valve 22 regulating flow rate of hydrogen supplied from the accumulator 20 which is allowed to supply hydrogen out of the accumulators 20; a communication part 26 receiving fuel tank information relating to temperature and pressure of a fuel tank 30 of a fuel cell vehicle 3; and a control part 27 changing over the accumulator 20 which is allowed to supply hydrogen by controlling the shut off valves 21A-21C and the regulating valve 22 according to the temperature and pressure included in the received fuel tank information, and regulating the flow rate of hydrogen supplied form the accumulator 20 which is allowed to supply hydrogen. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fuel filling device and a fuel filling system.

The fuel cell system uses, as an energy source, a fuel cell that receives supply of a reaction gas, a fuel gas and an oxidizing gas, and generates electric power by an electrochemical reaction of the reaction gas. The fuel gas supplied to the fuel cell is filled into the fuel tank of the fuel cell system from the fuel filling device. Patent Document 1 below discloses a fuel filling device including a plurality of pressure accumulators that store fuel gases compressed at different pressures. In this fuel filling device, the fuel gas is filled into the fuel tank of the fuel cell system in order from the pressure accumulator in which the pressure of the stored fuel gas is low.
JP 2008-64160 A

  By the way, when filling the fuel gas, it is necessary to fill the fuel tank so that the temperature in the fuel tank does not exceed the specified temperature for safety reasons. Therefore, in the above-described conventional fuel filling device, the constant in the fuel tank is set with a small margin so that the temperature in the fuel tank does not exceed the specified temperature during filling in consideration of various conditions during filling. It will be filled with the flow rate of. However, since the temperature in the fuel tank varies depending on the environmental conditions at that time, filling with a constant flow rate set to a small amount in consideration of safety, the filling time is longer than the time that can be filled if originally intended. Can be significantly longer.

  The present invention has been made to solve the above-described problems caused by the prior art, and an object of the present invention is to provide a fuel filling device and a fuel filling system that can shorten the filling time of fuel gas.

  In order to solve the above-described problems, a fuel filling device according to the present invention includes a plurality of pressure accumulators having different pressures of fuel gas to be stored, and a fuel gas supply from the pressure accumulator, which is cut off or allowed, respectively. A valve mechanism for adjusting the flow rate of the fuel gas supplied from one pressure accumulator allowed to supply the fuel gas, a receiving unit for receiving information on the temperature and pressure of the fuel gas filling destination, By controlling the valve mechanism according to the temperature and pressure included in the information received by the receiving unit, the accumulator allowed to supply fuel gas is switched, and the accumulator allowed to supply fuel gas. And a control unit that adjusts the flow rate of the fuel gas supplied from the vehicle.

  According to the present invention, the temperature and pressure of the fuel gas filling destination can be received, and the valve mechanism can be controlled according to the received temperature and pressure. It is possible to supply fuel gas at an optimal flow rate from the pressure accumulator. Therefore, the fuel gas filling time can be shortened.

  In the fuel filling apparatus, the receiving unit may receive information on the temperature and pressure of the filling destination of the fuel gas measured while switching the accumulator that is allowed to supply the fuel gas.

  As a result, the temperature and pressure measured when the supply of the fuel gas is temporarily stopped can be acquired, so that the flow rate of the fuel gas can be controlled based on the temperature and pressure with less error. The accuracy of flow control can be improved.

  The fuel filling device further includes a storage unit that stores a flow rate of fuel gas corresponding to temperature and pressure for each of the accumulators, and the control unit includes the temperature and pressure included in the information received by the receiving unit. The flow rate of the fuel gas is determined by referring to the storage unit using and the flow rate of the fuel gas supplied from the pressure accumulator allowed to supply the fuel gas is adjusted using the determined flow rate of the fuel gas. It is good as well.

  As a result, the optimum flow rate of the fuel gas corresponding to the temperature and pressure can be stored in advance for each pressure accumulator, so that the fuel gas supplied from the pressure accumulator allowed to supply the fuel gas is flowed to the optimum flow rate. It is possible to quickly perform the processing to be controlled.

  In the fuel filling device, when the controller switches the accumulator allowed to supply the fuel gas, the pressure of the stored fuel gas is higher than the accumulator allowed to supply the fuel gas at the present time. It is good also as switching to another high pressure accumulator.

  A fuel filling system according to the present invention includes the fuel filling device and a moving body having a fuel tank filled with fuel gas supplied from the fuel filling device.

  According to the present invention, the temperature and pressure of the fuel tank that is the filling destination of the fuel gas can be received, and the valve mechanism can be controlled according to the received temperature and pressure. It is possible to supply fuel gas at an optimal flow rate from a pressure accumulator suitable for pressure. Therefore, the fuel gas filling time can be shortened.

  In the fuel filling system, the moving body measures the pressure of the fuel gas filled in the fuel tank and the flow path for allowing the fuel gas to flow into the fuel tank from the connection portion with the fuel filling device. A pressure sensor for measuring, a temperature sensor for measuring a temperature of the fuel gas filled in the fuel tank, a pressure measured by the pressure sensor, and information including a temperature measured by the temperature sensor And a transmission unit.

  As a result, the moving body can transmit the temperature and pressure of the fuel gas filled in the fuel tank to the fuel filling device. Therefore, the fuel filling device uses the valve mechanism based on the temperature and pressure received from the moving body. Can be controlled.

  In the fuel filling system, the pressure sensor may be provided in the flow path.

  Thereby, compared with the case where a pressure sensor is provided in a fuel tank, since it becomes possible to narrow the durable temperature range of a pressure sensor, the quality and measurement accuracy of a pressure sensor can be improved.

  According to the present invention, the fuel gas filling time can be shortened.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a fuel filling device and a fuel filling system according to the present invention will be described with reference to the accompanying drawings.

  First, with reference to FIG. 1, the structure of the fuel filling system in this embodiment is demonstrated. FIG. 1 is a configuration diagram schematically showing a fuel filling system in the present embodiment.

  As shown in the figure, the fuel filling system 1 includes a fuel filling device 2 and a fuel cell vehicle 3 (moving body) equipped with the fuel cell system.

  The fuel filling device 2 is, for example, a hydrogen station, and a plurality of pressure accumulators 20A to 20C, a plurality of shut-off valves 21A to 21C and a regulating valve 22 constituting a valve mechanism, a nozzle 23, a communication unit 26, and a control Part 27. A gas pipe 24 is connected between the pressure accumulator 20 and the adjustment valve 22, and a gas supply pipe 25 is connected between the adjustment valve 22 and the nozzle 23.

  The pressure accumulators 20A to 20C are tanks that store hydrogen as fuel gas compressed to a high pressure. The pressure of hydrogen stored in each of the pressure accumulators 20A to 20C is set to be different from each other, and is set so that the pressure of hydrogen increases in the order of the pressure accumulator 20A, the pressure accumulator 20B, and the pressure accumulator 20C. . Note that it is not always necessary to set the pressures of all the accumulators to different pressures, but it is necessary to set the pressures of at least some of the accumulators to pressures different from the pressures of other accumulators.

  The shutoff valves 21A to 21C are valves that shut off or allow the supply of hydrogen from the pressure accumulators 20A to 20C, respectively. The shut-off valves 21 </ b> A to 21 </ b> C open only one shut-off valve 21 and close the other shut-off valves 21 in accordance with an instruction from the control unit 27 when supplying hydrogen. Thereby, hydrogen can be supplied from one pressure accumulator 20 corresponding to one shut-off valve 21 opened. By controlling the opening and closing of the shutoff valves 21A to 21C in this way, it is possible to switch the pressure accumulator 20 that supplies hydrogen.

  The regulating valve 22 is a valve that regulates the flow rate of hydrogen supplied from any one of the pressure accumulators 20. The adjustment valve 22 adjusts the flow rate of hydrogen by changing the valve opening degree of the valve body in accordance with an instruction from the control unit 27 when supplying hydrogen. The nozzle 23 is a connecting portion that is coupled to a receptacle 31 of the fuel cell vehicle 3 described later when hydrogen is supplied to the fuel cell vehicle 3.

  The gas pipe 24 has a plurality of branch pipes connected to the pressure accumulators 20 </ b> A to 20 </ b> C and a junction pipe that joins these branch pipes and connects to the adjustment valve 22. A gas flow path for flowing hydrogen from the pressure accumulators 20 </ b> A to 20 </ b> C toward the regulating valve 22 is formed by the gas pipe 24. The gas supply pipe 25 forms a gas flow path for flowing hydrogen from the regulating valve 22 toward the nozzle 23.

  The communication unit 26 physically includes a communication interface that performs wireless communication such as infrared communication. The communication unit 26 transmits and receives various types of information exchanged between the fuel filling device 2 and the fuel cell vehicle 3. Examples of the various information include a measurement request signal transmitted from the fuel filling device 2 to the fuel cell vehicle 3 and a measurement result signal transmitted from the fuel cell vehicle 3 to the fuel filling device 2. The measurement request signal includes information for requesting that the temperature and pressure of the fuel tank 30 of the fuel cell vehicle 3 be measured and transmitted. The measurement result signal includes fuel tank information related to the measurement result of the temperature and pressure of the fuel tank 30 of the fuel cell vehicle 3.

  The control unit 27 physically includes, for example, a CPU, a memory 271, and an input / output interface. The memory 271 includes a ROM that stores control programs and control data processed by the CPU, and a RAM that is mainly used as various work areas for control processing. These elements are connected to each other via a bus. The input / output interface is connected to the communication unit 26 and the like, and is connected to various drivers for driving the shutoff valves 21A to 21C and the regulating valve 22 and the like. The CPU executes various control processes in the fuel filling device 2 by processing various information transmitted / received via the communication unit 26 using various data in the RAM in accordance with a control program stored in the ROM. . In addition, the CPU controls the entire fuel filling device 2 by outputting control signals to various drivers via the input / output interface.

  The control unit 27 controls the shutoff valves 21 </ b> A to 21 </ b> C and the regulating valve 22 using the temperature and pressure of the fuel tank included in the measurement result signal received via the communication unit 26.

  Specifically, the control unit 27 determines the pressure accumulator 20 that stores hydrogen at a pressure larger than the pressure included in the measurement result signal as the pressure accumulator 20 that supplies hydrogen to the fuel cell vehicle 3. The control unit 27 opens the shut-off valve 21 corresponding to the determined pressure accumulator 20 and closes the shut-off valves 21 corresponding to the other pressure accumulators 20. When a plurality of target accumulators 20 are present when determining the accumulator 20 for supplying hydrogen, for example, the accumulator 20 having the smallest pressure may be selected, or the received temperature and pressure may be selected. It is good also as selecting the accumulator 20 with which the filling time calculated based on this becomes the minimum.

  The controller 27 uses the temperature and pressure included in the fuel tank information to refer to the valve opening map stored in advance in the memory, and opens the valve opening of the regulating valve 22 corresponding to the pressure accumulator 20 that supplies hydrogen. To decide. The valve opening map is a table that stores the valve opening of the regulating valve 22 in association with the temperature and pressure for each of the pressure accumulators 20A to 20C. The valve opening map is obtained in advance through experiments or the like and stored in the memory 271 of the control unit 27. The Each element registered in the valve opening map has a relationship that the valve opening decreases as the temperature increases, and the valve opening increases as the pressure increases. Each element is set so that the temperature is within a range in which safety can be ensured and the filling time is as short as possible.

  Specifically, the value of each element is set so that the slopes of the graphs A to C shown in FIG. 2 are as steep as possible. FIG. 2 is a graph illustrating the pressure change in the fuel tank during filling. The horizontal axis shown in FIG. 2 indicates the time required for filling, and the vertical axis indicates the pressure in the fuel tank 30. A graph A portion shown in FIG. 2 shows a change in pressure in the fuel tank when filling from the pressure accumulator 20A, and a graph B portion shows a change in pressure in the fuel tank when filling from the pressure accumulator 20B. A graph C portion shows a change in pressure in the fuel tank when the pressure accumulator 20C is filled. A portion where the pressure change between the graph A portion and the graph B portion and between the graph B portion and the graph C portion is 0 indicates a pressure change when the accumulator 20 is switched. Pm is the pressure when the fuel tank 30 is fully filled, and Tf is the time required for full filling.

  The control unit 27 adjusts the hydrogen supply flow rate by controlling the adjustment valve 22 with the valve opening determined using the valve opening map as the target valve opening.

  The control unit 27 sends the measurement request signal to the fuel cell via the communication unit 26 before starting the supply of hydrogen to the fuel cell vehicle 3 and when switching the pressure accumulator 20 that supplies hydrogen to the fuel cell vehicle 3. Transmit to the vehicle 3 side.

  As a switching condition when determining whether or not to switch the accumulator 20, for example, the supply amount of hydrogen from the accumulator 20 is reduced to a predetermined supply amount or less, or supply by the accumulator 20 is performed. For example, a predetermined time has elapsed since the start. This predetermined time is obtained from, for example, a filling amount per unit time obtained from the pressure of the pressure accumulator 20 and the valve opening of the regulating valve 22 and a target filling amount when the fuel tank 30 is filled from the pressure accumulator 20. be able to.

  When switching the pressure accumulator 20, the control unit 27 switches the pressure of the stored hydrogen to another pressure accumulator 20 higher than the pressure accumulator 20 that is allowed to supply hydrogen at the present time. Note that it is not always necessary to switch to the pressure accumulator 20 having a higher pressure. For example, when the pressure accumulator 20 having the same pressure exists, the accumulator 20 having the same pressure may be switched.

  When the end condition is satisfied, the control unit 27 closes all the shut-off valves 21A to 21C and ends the supply of hydrogen to the fuel cell vehicle 3. The termination condition corresponds to, for example, that the total supply amount of hydrogen from each pressure accumulator 20 has reached the target filling amount when filling the fuel tank 30, or that a failure has occurred in the fuel filling device 2. .

  The fuel cell vehicle 3 is equipped with a fuel cell system, and the fuel cell system includes a fuel tank 30, a receptacle 31, a communication unit 33, and a control unit 34. A gas supply pipe 32 is connected between the fuel tank 30 and the receptacle 31.

  The fuel tank 30 is a tank that is filled with hydrogen supplied from the fuel filling device 2. A temperature sensor T for measuring the temperature in the fuel tank 30 is attached to the valve of the fuel tank 30.

  The receptacle 31 is a connection part that couples the nozzle 23 of the fuel filling device 2 when the fuel tank 30 is filled with hydrogen.

  The gas supply pipe 32 forms a gas flow path for flowing hydrogen from the receptacle 31 toward the fuel tank 30. A pressure sensor P for measuring the pressure of hydrogen filled in the fuel tank 30 is attached to the gas supply pipe 32. Here, when the pressure of hydrogen is measured by the pressure sensor P attached to the gas supply pipe 32 while filling with hydrogen, the pressure fluctuates due to the influence of the hydrogen flowing through the gas supply pipe 32. It becomes difficult to measure. In view of such a problem, in this embodiment, the pressure is measured at the timing when the measurement request signal transmitted before the start of hydrogen supply when the hydrogen supply amount becomes 0 and when the pressure accumulator 20 is switched is received. Thereby, since the pressure can be measured when the supply of hydrogen is temporarily stopped, the pressure of hydrogen can be accurately measured using the pressure sensor P attached to the gas supply pipe 32. It becomes.

  The pressure sensor P may be attached to the valve of the fuel tank 30. However, when the pressure sensor P is attached to the gas supply pipe 32, there are the following merits. First, since the environmental temperature range of the gas supply pipe 32 is smaller than the environmental temperature range in the fuel tank 30, it becomes possible to narrow the serviceable temperature range of the pressure sensor P, and the quality and measurement accuracy of the pressure sensor P can be reduced. Can be improved. Second, by monitoring the measurement result of the pressure sensor P other than at the time of fuel filling, it becomes possible to detect the gas leakage of the gas supply pipe 32 and improve the safety of the fuel cell vehicle 3. . Third, since the structure of the valve of the fuel tank 30 can be simplified, it is possible to reduce the size and cost of the valve.

  The communication unit 33 physically includes a communication interface that performs wireless communication such as infrared communication. The communication unit 33 transmits and receives various information exchanged between the fuel filling device 2 and the fuel cell vehicle 3. Various information is the same as the various information transmitted / received by the communication part 26 of the fuel filling apparatus 2 mentioned above.

  The control unit 34 physically includes, for example, a CPU, a memory, and an input / output interface. The memory includes a ROM that stores a control program and control data processed by the CPU, and a RAM that is mainly used as various work areas for control processing. These elements are connected to each other via a bus. The input / output interface is connected to the communication unit 33, the temperature sensor T, the pressure sensor P, and the like, and is connected to various drivers for driving the power consuming device of the fuel cell system. The CPU processes various information transmitted / received via the communication unit 26, values measured by the temperature sensor T and the pressure sensor P, and the like using various data in the RAM in accordance with a control program stored in the ROM. Thus, various control processes in the fuel cell vehicle 3 are executed. The CPU controls the entire fuel cell vehicle 3 by outputting control signals to various drivers via the input / output interface.

  The control unit 34 is measured by the current temperature and pressure sensor P measured by the temperature sensor T every time the measurement request signal transmitted from the fuel filling device 2 is received via the communication unit 33. Get the current pressure. The control unit 34 transmits the fuel tank information including the acquired temperature and pressure as a measurement result signal to the fuel filling device 2 side via the communication unit 33.

  Here, the fuel cell system mounted on the fuel cell vehicle 3 includes, for example, a fuel cell that generates power through an electrochemical reaction upon receiving supply of air as an oxidizing gas and hydrogen as a fuel gas, and air as a fuel cell. Air piping system that supplies fuel, a hydrogen piping system that supplies hydrogen to the fuel cell, a power system that charges and discharges system power, a cooling system that circulates and supplies cooling water to the fuel cell, and overall control of the entire system And a control system. The fuel tank 30 and the receptacle 31 are included in the hydrogen piping system, and the communication unit 33 and the control unit 34 are included in the control system.

  Next, the fuel filling process in the fuel filling system 1 will be described with reference to FIG. This fuel filling process is started, for example, when a filling start button provided in the fuel filling device 2 is pressed.

  First, the control unit 27 of the fuel filling device 2 transmits a measurement request signal for requesting measurement and transmission of the temperature and pressure of the fuel tank 30 via the communication unit 26 (step S101).

  Subsequently, the control unit 34 of the fuel cell vehicle 3 receives the current measurement values from the temperature sensor T and the pressure sensor P when the measurement request signal transmitted in step S101 is received via the communication unit 33. Obtain (step S102).

  Subsequently, the control unit 34 of the fuel cell vehicle 3 transmits a measurement result signal including fuel tank information related to the temperature and pressure acquired in step S102 via the communication unit 33 (step S103).

  Subsequently, when the control unit 27 of the fuel filling device 2 receives the measurement result signal transmitted in step S103 via the communication unit 26, the control unit 27 uses the pressure included in the received measurement result signal to generate fuel. An accumulator 20 that supplies hydrogen to the battery vehicle 3 is determined, and a valve opening map is referred to using the temperature and pressure included in the received fuel tank information, and the adjustment valve corresponding to the accumulator 20 that supplies hydrogen 22 is determined (step S104).

  Subsequently, the control unit 27 of the fuel filling device 2 opens only the shutoff valve 21 corresponding to the pressure accumulator 20 that supplies the hydrogen determined in step S104, and sets the determined valve opening to the target valve opening. By controlling the regulating valve 22, the supply of hydrogen to the fuel cell vehicle 3 is started (step S105).

  Subsequently, the control unit 27 of the fuel filling device 2 determines whether or not the end condition is satisfied (step S106). If this determination is YES (step S106; YES), the fuel filling process is terminated.

  On the other hand, when it is determined in step S106 that the end condition is not satisfied (step S106; NO), the control unit 27 of the fuel filling device 2 determines whether the switching condition is satisfied (step S106). S107). If this determination is NO (step S107; NO), the process proceeds to step S106.

  On the other hand, when it is determined in the determination of step S107 that the switching condition is satisfied (step S107; YES), the control unit 27 of the fuel filling device 2 transmits a measurement request signal via the communication unit 26. (Step S108).

  Subsequently, the control unit 34 of the fuel cell vehicle 3 receives the current measurement values from the temperature sensor T and the pressure sensor P when the measurement request signal transmitted in step S108 is received via the communication unit 33. Obtain (step S109).

  Subsequently, the control unit 34 of the fuel cell vehicle 3 transmits the fuel tank information including the temperature and pressure acquired in step S109 as a measurement result signal via the communication unit 33 (step S110).

  Subsequently, when the control unit 27 of the fuel filling device 2 receives the measurement result signal transmitted in step S110 via the communication unit 26, the control unit 27 switches using the pressure included in the received fuel tank information. The previous pressure accumulator 20 is determined, and the valve opening degree of the regulating valve 22 corresponding to the switching destination pressure accumulator 20 is determined from the valve opening degree map using the temperature and pressure included in the received fuel tank information ( Step S111).

  Subsequently, the control unit 27 of the fuel filling device 2 opens only the shut-off valve 21 corresponding to the switching destination pressure accumulator 20 determined in step S111 and adjusts the determined valve opening to the target valve opening. Hydrogen is supplied to the fuel cell vehicle 3 by controlling the valve 22 (step S112).

  Subsequently, the control unit 27 of the fuel filling device 2 determines whether or not the end condition is satisfied (step S113). If this determination is YES (step S113; YES), the fuel filling process is terminated, and if this determination is NO (step S113; NO), the process proceeds to step S107.

  As described above, according to the fuel filling system 1 in the embodiment, the temperature and pressure of the fuel tank 30 that is a hydrogen filling destination can be acquired, and the cutoff valves 21 </ b> A to 21 </ b> A to 21 </ b> A according to the acquired temperature and pressure. Since 21C and the regulating valve 22 can be controlled, it is possible to supply hydrogen at an optimal flow rate from the accumulator 20 suitable for the temperature and pressure of the fuel tank 30. Therefore, the filling time of hydrogen can be shortened and the filling amount (SOC) can be improved.

  Here, as a method of acquiring the temperature and pressure of the fuel tank 30 that is a hydrogen filling destination and controlling the supply amount of hydrogen, in addition to the method in the above-described embodiment, for example, the temperature and the pressure only before the start of filling. A method of determining the supply amount of hydrogen by acquiring pressure, and a method of controlling the supply amount of hydrogen according to changes in temperature and pressure by always acquiring temperature and pressure before and during filling are considered. Although these methods can be applied to the present invention, these methods have the following disadvantages. In the former method, it is considered that the temperature in the tank at the time of filling varies due to the influence of the outside air temperature, the temperature of the filling hydrogen, etc., and it is difficult to determine the optimum supply amount. Further, in the latter method, it is necessary to prepare a valve opening map corresponding to various situations in advance in order to determine the supply amount according to the temperature and pressure that are constantly acquired, and the configuration becomes too complicated. End up.

  In addition, in embodiment mentioned above, although the valve mechanism is comprised by several shut-off valve 21A-21C and the adjustment valve 22, the structure of a valve mechanism is not limited to this. For example, the shutoff valves 21 </ b> A to 21 </ b> C may have the function of the regulating valve 22 and the regulating valve 22 may be omitted.

  In the above-described embodiment, the valve opening degree of the regulating valve 22 corresponding to the pressure accumulator 20 that supplies hydrogen is determined from the valve opening degree map using the temperature and pressure received from the fuel cell vehicle. The method of determining the valve opening degree of the regulating valve 22 is not limited to this. For example, the temperature or pressure when switching the pressure accumulator 20 is determined in advance, and the valve of the regulating valve 22 corresponding to the pressure accumulator 20 that supplies hydrogen from the valve opening degree map prepared for each fixed temperature or fixed pressure. The opening degree may be determined.

  In the above-described embodiment, the fuel cell vehicle is used as the mobile body on which the fuel cell system is mounted. However, the present invention is not limited to this, and examples of the mobile body on which the fuel cell system is mounted include robots and ships. An aircraft or the like can be employed.

It is a lineblock diagram showing typically the fuel filling system in an embodiment. It is a graph which illustrates the pressure change in the fuel tank at the time of filling. It is a flowchart for demonstrating the fuel filling process in a fuel filling system.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Fuel filling system, 2 ... Fuel filling apparatus, 3 ... Fuel cell vehicle, 20 ... Accumulator, 21 ... Shut-off valve, 22 ... Adjustment valve, 23 ... Nozzle, 24 ... Gas piping, 25 ... Gas supply pipe, 26 ... Communication unit 27... Control unit 271 Memory 30 Reference fuel tank 32 Receptacle 32 Gas supply pipe 33 Communication unit 34 Control unit P Pressure sensor T Temperature sensor

Claims (7)

A plurality of pressure accumulators having different fuel gas pressures;
A valve mechanism for cutting off or allowing the supply of fuel gas from the pressure accumulator, and adjusting the flow rate of the fuel gas supplied from the pressure accumulator allowed to supply the fuel gas in the accumulator,
A receiver for receiving information on the temperature and pressure of the fuel gas filling destination;
By controlling the valve mechanism according to the temperature and pressure included in the information received by the receiving unit, the accumulator allowed to supply fuel gas is switched, and the accumulator allowed to supply fuel gas. A control unit for adjusting the flow rate of the fuel gas supplied from
A fuel filling device comprising:   2. The fuel filling according to claim 1, wherein the receiving unit receives information on a temperature and pressure of a fuel gas filling destination measured while switching an accumulator in which fuel gas supply is allowed. apparatus. A storage unit for storing the flow rate of the fuel gas corresponding to the temperature and pressure for each pressure accumulator;
The control unit determines the flow rate of the fuel gas by referring to the storage unit using the temperature and pressure included in the information received by the reception unit, and uses the determined flow rate of the fuel gas to determine the fuel gas flow rate. 3. The fuel filling device according to claim 1, wherein the flow rate of the fuel gas supplied from the pressure accumulator allowed to supply the gas is adjusted.   When switching the pressure accumulator allowed to supply the fuel gas, the control unit switches the pressure of the stored fuel gas to another pressure accumulator higher than the pressure accumulator allowed to supply the fuel gas at the present time. The fuel filling device according to any one of claims 1 to 3, wherein the fuel filling device is switched. The fuel filling device according to any one of claims 1 to 4,
A moving body having a fuel tank filled with fuel gas supplied from the fuel filling device;
A fuel filling system comprising: The moving body is
A flow path for allowing fuel gas to flow into the fuel tank from a connection with the fuel filling device;
A pressure sensor for measuring the pressure of the fuel gas filled in the fuel tank;
A temperature sensor for measuring the temperature of the fuel gas filled in the fuel tank;
A transmitter for transmitting information including the pressure measured by the pressure sensor and the temperature measured by the temperature sensor;
The fuel filling system according to claim 5, further comprising:   The fuel filling system according to claim 6, wherein the pressure sensor is provided in the flow path.

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