JP2012076713A - Vehicle, and filling state-reporting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology associated with a vehicle having a utilization unit for utilizing a fuel gas and a fuel tank storing the fuel gas.SOLUTION: The vehicle includes a communication unit for performing communication relevant to information on the filling of the fuel gas with a filling apparatus for filling the fuel tank with the fuel gas. The vehicle further includes: a fuel gas-utilizing unit for utilizing the fuel gas; the fuel tank for storing the fuel gas that the fuel gas-utilizing unit utilizes; a tank condition-detecting unit for detecting the condition of the inside of the fuel tank; a determination unit for determining the condition of filling the fuel tank with the fuel gas, based on the condition of the tank; and a reporting unit for reporting information related to the filling condition in the fuel tank through a unit other than the communication unit based on the determination results.

Description

  The present invention relates to a vehicle including utilization means that uses fuel gas and a fuel tank that stores the fuel gas.

  In a vehicle equipped with a means for using fuel gas (for example, a fuel cell or a hydrogen fuel engine), information on the state of the fuel tank (for example, the temperature and pressure of the fuel tank) with a filling device that fills the fuel gas. ), A technique for filling a fuel tank with fuel gas while communicating is known (for example, Patent Document 1). This is to improve the working efficiency when filling with fuel gas.

  However, even if the vehicle includes a communication unit that communicates with the filling device, or if the filling device does not include a communication unit, or the filling device includes a communication unit, the communication is performed for some reason. There are cases where it cannot be done. In such a case, the fuel gas is filled without communicating with the filling device. The preferable state of the fuel tank at the time of fuel gas filling is stipulated by law, and if the filling operation is performed without communicating with the filling device, the filling of the fuel gas cannot be performed in a preferable state, and the working efficiency is lowered. Was pointed out.

JP 2003-269893 A JP-A-7-208698 JP 2009-522519 A

  The present invention has been made to solve the above-described conventional problems, and provides a technique capable of efficiently filling fuel gas in a fuel tank included in a vehicle regardless of communication with a filling device. The purpose is to do.

In order to solve at least a part of the problems described above, the present invention can take the following forms or application examples.
[Application Example 1]
A vehicle equipped with a communication means for communicating information relating to the filling of the fuel gas with a filling device for filling the fuel gas into the fuel tank, the fuel gas using means using the fuel gas, and the fuel A fuel tank for storing fuel gas used by the gas utilization means; a tank state detection means for detecting a state in the fuel tank; and a state of filling the fuel gas into the fuel tank based on the tank state A vehicle comprising: a determination unit that performs notification, and a notification unit that reports information related to a state of filling of the fuel tank by means other than the communication unit based on the determination result.

  According to this vehicle, since the notifying unit for notifying information on the state of filling of the fuel tank is provided, the person filling the fuel gas can efficiently perform the filling operation using means other than the communication means.

[Application Example 2]
The vehicle according to Application Example 1, wherein the notification unit includes a display unit that displays information relating to a state of filling of the fuel tank so as to be visible, and the display unit fills the fuel gas with the fuel gas. A vehicle that is installed in a position that is visible to the filler.
According to this vehicle, a person filling the fuel gas can perform the filling operation while visually checking the state of filling the fuel tank being filled.

[Application Example 3]
The vehicle according to application example 2, wherein the display unit is installed in the vicinity of a filling port for connecting the fuel tank and the filling device.
According to this vehicle, the person filling the fuel gas can recognize the state of filling the fuel tank in the vicinity of the filling port.

[Application Example 4]
The vehicle according to any one of Application Example 1 to Application Example 3, wherein the notification unit reports information on a filling state of the fuel tank regardless of whether the communication unit can communicate with the filling device. Vehicle.
According to this vehicle, the fuel gas filler can recognize the filling state of the fuel tank being filled even when the communication means can communicate with the filling device.

[Application Example 5]
4. The vehicle according to any one of application examples 1 to 3, wherein the notification unit notifies information related to a state of filling of the fuel tank only when the communication unit cannot communicate with the filling device.
According to this vehicle, the fuel gas filler can recognize that the communication means and the filling device cannot communicate with each other by the informing unit informing the state of filling of the fuel tank.

[Application Example 6]
The determination unit determines the state of filling by dividing into a plurality of levels based on the tank state, and the notification unit step by step information on the state of filling of the fuel tank corresponding to the determination result. The vehicle according to any one of Application Example 1 to Application Example 5 to be notified.
According to this vehicle, the person who fills the fuel gas can perform the filling operation while recognizing the filling state of the fuel tank step by step.

[Application Example 7]
The vehicle according to any one of Application Examples 1 to 6, wherein the notification unit further notifies whether or not the communication unit can communicate with the filling device.
According to this vehicle, the fuel gas filler can recognize whether or not the communication means can communicate with the filling device.

[Application Example 8]
The vehicle according to any one of Application Examples 1 to 7, wherein the notification unit notifies information related to a state of filling of the fuel tank as sound.
According to this vehicle, the person who fills the fuel gas can recognize the state of filling the fuel tank by hearing.

[Application Example 9]
A filling state notification device for notifying about a filling state of the fuel tank mounted on a vehicle equipped with a fuel gas utilization means for using fuel gas stored in the fuel tank, and acquiring information on the state in the fuel tank A tank state obtaining means for determining the state of filling of the fuel tank based on information on the state of the fuel tank, and information on the state of filling of the fuel tank based on the determination result. A filling state notifying device comprising a notifying unit for notifying.
According to this filling state notification device, the person filling the fuel gas can perform the filling operation while recognizing the filling state of the fuel tank being filled.

  Note that the present invention can be realized in various modes. For example, the present invention can be realized in the form of a filling state display method and apparatus, a fuel gas filling system, an integrated circuit for realizing the functions of the method or apparatus, a computer program, a recording medium recording the computer program, and the like.

2 is an explanatory diagram illustrating a configuration of a hydrogen filling system 10. FIG. It is explanatory drawing explaining the indicator. It is a flowchart which shows the flow of a filling condition display process. It is explanatory drawing explaining the filling condition judgment table TB. It is explanatory drawing explaining the state of the hydrogen filling system. 4 is an explanatory diagram showing an example of a communication status display lamp 54. FIG. It is explanatory drawing explaining the modification 3. FIG.

Next, embodiments of the present invention will be described based on examples.
A. First embodiment:
FIG. 1 is an explanatory diagram showing a configuration of a hydrogen filling system 10 as a first embodiment. The hydrogen filling system 10 includes a vehicle 20 equipped with a hydrogen tank 30 and a hydrogen station ST for filling the hydrogen tank 30 with hydrogen. The hydrogen station ST includes a hydrogen tank 60 that stores hydrogen for filling the hydrogen tank 30 with hydrogen, a hydrogen supply pipe 61 for filling hydrogen, and a hydrogen supply nozzle 62 connected to the vehicle 20. The hydrogen station ST supplies the hydrogen stored in the hydrogen tank 60 to the hydrogen tank 30 provided in the vehicle 20 via the hydrogen supply pipe 61 and the hydrogen supply nozzle 62.

  The vehicle 20 includes a hydrogen tank 30, an electronic control unit 40 (hereinafter also referred to as “ECU 40”), and a fuel cell FC. The vehicle 20 drives a driving motor (not shown) with the electric power generated by the fuel cell FC, and travels with the driving force. Power generation by the fuel cell FC is performed by hydrogen gas supplied from the hydrogen tank 30 through the hydrogen supply pipe 38 and oxygen gas supplied from the oxygen supply pipe (not shown) to the fuel cell FC. Since the mechanism by which the fuel cell generates electricity is a known technique, a description thereof will be omitted.

  The vehicle 20 includes a recess (hereinafter also referred to as a “hydrogen filling recess 25”) on a side surface of the body. The hydrogen filling recess 25 is provided with a hydrogen filling port 32 for connection to a hydrogen supply nozzle 62 provided in the hydrogen station ST. The hydrogen tank 30 and the hydrogen filling port 32 communicate with each other via a hydrogen filling pipe 31. is doing. The hydrogen filling pipe 31 includes a supply valve 33. The replenishing valve 33 is controlled to open and close by the ECU 40, and is opened when hydrogen filling is started and closed when hydrogen filling is finished.

  The hydrogen tank 30 is provided with a temperature sensor 36 for measuring the temperature T of the hydrogen tank 30 being filled with hydrogen gas, and the hydrogen filling pipe 31 has a pressure P of the hydrogen tank 30 being filled with hydrogen gas. A pressure sensor 37 for measuring is provided. The ECU 40 acquires the temperature T measured by the temperature sensor 36 and the pressure P measured by the pressure sensor 37 as electrical signals, and calculates the state of hydrogen filling the hydrogen tank 30 based on the temperature T and the pressure P. . Specifically, the filling rate of hydrogen into the hydrogen tank 30 (hereinafter also referred to as “SOC (State Of Charge)”) is calculated. The ECU 40 also determines whether the temperature T and the pressure P of the hydrogen tank 30 are values that are not problematic in terms of work efficiency.

  Information on the temperature T and pressure P calculated by the ECU 40 (hereinafter also referred to as tank state information) is transmitted from the infrared communication device 35 provided in the hydrogen filling port 32 to the infrared communication device 65 provided in the hydrogen supply nozzle 62 of the hydrogen station ST. To the hydrogen station ST. The hydrogen station ST that has received the tank state information determines whether to continue or stop filling based on the tank state information. If the hydrogen station ST determines that the filling of hydrogen into the hydrogen tank 30 is to be stopped based on the received tank state information, the hydrogen station ST stops the supply of hydrogen from the hydrogen tank 60, and the infrared communication device 65, infrared communication A hydrogen stop signal is transmitted to the ECU 40 via the device 35. When the ECU 40 receives the stop signal from the hydrogen station ST, the ECU 40 controls the supply valve 33 to close it. In the present embodiment, the ECU 40 and the hydrogen station ST use infrared communication as a communication means, but various communication means such as Bluetooth (registered trademark) and communication using radio waves can be used.

  The hydrogen tank 30 includes a safety valve 34. The safety valve 34 is made of an acceptable metal. When the temperature of the hydrogen tank 30 reaches 110 ± 10 ° C. when the hydrogen is filled, the safety valve 34 melts the acceptable metal to form a through hole between the hydrogen tank 30 and the outside. The hydrogen inside is released to the outside. Once activated, the safety valve 34 cannot be used again and must be replaced.

  In addition to these components, the vehicle 20 further includes an indicator 50. The indicator 50 is an indicator that displays the degree of filling of the hydrogen tank 30 during hydrogen filling (hereinafter also referred to as “filling state”) to the hydrogen filling person. The indicator 50 is controlled by the ECU 40 and displays the filling state of the hydrogen tank 30 on the indicator 50 based on the temperature T, pressure P, and SOC acquired by the ECU 40. That is, the filling state is an index determined from the temperature T and pressure P of the hydrogen tank 30 (hereinafter also referred to as “tank state”), and whether or not the state of the hydrogen tank 30 is a preferable state for filling work is determined step by step. It is an indicator shown in.

  FIG. 2 is an explanatory diagram for explaining the indicator 50. As shown in FIG. 2, the indicator 50 is disposed in the hydrogen filling recess 25. More specifically, the indicator 50 is located at a position where the hydrogen filling person can visually recognize the hydrogen filling nozzle 62 on the hydrogen station ST side and the hydrogen filling port 32 on the vehicle 20 side. is set up. The indicator 50 includes a display unit 51 that displays a filling state, and a speaker 52 that sounds a buzzer when the state of the hydrogen tank 30 reaches a predetermined state.

  The display unit 51 displays the filling state of the hydrogen tank 30 at the time of hydrogen filling in three stages of “normal”, “caution”, and “stop”. When the state of the hydrogen tank 30 is normal, the display lamp corresponding to “normal” is lit in blue. The filling of hydrogen into the hydrogen tank 30 may be continued, but if monitoring and caution are required during filling, the indicator lamp corresponding to “CAUTION” is lit in yellow, and a buzzer for warning the speaker 52 Ring. When the filling of the hydrogen into the hydrogen tank 30 is to be stopped, a display lamp corresponding to “stop” is turned on in red, and a warning buzzer is sounded. The ECU 40 performs operation control of these indicators 50 (the display unit 51 and the speaker 52).

  Next, operation control of the indicator 50 performed by the ECU 40 (hereinafter also referred to as “filling state display process”) will be described. In this embodiment, the filling state display process is started by the ECU 40 triggered by the hydrogen filling person opening the lid 39. As shown in FIG. 2, the hydrogen filling recess 25 is provided with an open / close sensor 53 for detecting the opening / closing of the lid 39. When the open / close sensor 53 detects that the lid 39 is opened, the lid 39 is opened. A signal to this effect (hereinafter also referred to as “lid open signal”) is transmitted to the ECU 40. When the lid open signal is received, the ECU 40 starts the filling state display process.

  FIG. 3 is a flowchart showing the flow of the filling state display process performed by the ECU 40. When the filling state display process is started, the ECU 40 acquires the temperature T of the hydrogen tank 30 from the temperature sensor 36, and acquires the pressure P of the hydrogen tank 30 from the pressure sensor 37 (step S102). The ECU 40 determines the filling state of the hydrogen tank 30 from the acquired temperature T and pressure P (step S104). The ECU 40 uses the filling state determination table TB when determining the filling state.

  FIG. 4 is an explanatory diagram for explaining the filling state determination table TB. The filling state determination table TB is a table in which the horizontal axis indicates the temperature T (° C.) of the hydrogen tank 30 and the vertical axis indicates the pressure P (MPa) of the hydrogen tank 30. A solid line K in the filling state determination table TB is a set of points indicating a state where the SOC is 100%, that is, a state determined from the temperature T and the pressure P when the hydrogen filling rate of the hydrogen tank 30 is 100% (T , P). A dotted straight line L on the filling state determination table TB is a set of states (T, P) when the SOC is 98%. The region F1 where T> 85 ° C. is a region corresponding to a state where there is a problem in the filling operation of the hydrogen tank 30. The region F2 where P> 87.5 MPa is a region corresponding to a state that exceeds a legal standard. On the filling state determination table TB, a region F3 sandwiched between the straight line K and P = 87.5 exceeds SOC = 100%, and this state is a region corresponding to a state exceeding the standard by law. is there. When the ECU 40 determines that the state (T, P) of the hydrogen tank 30 is in the region F1, the region F2, or the region F3, the display lamp 51 corresponding to “stop” is displayed on the display unit 51 of the indicator 50. Is lit in red and the buzzer is sounded ("Cancel": Step S104, Step S106).

  In the filling state determination table TB, the region F4 where 82 ° C. <T ≦ 85 ° C. and SOC <100, and the region F5 where T ≦ 82 ° C. and 98% ≦ SOC <100% are stored in the hydrogen tank 30 being filled. Although there is no problem in terms of filling work and laws in the state, it is a state close to a state in which there is a problem in filling work or law, and corresponds to a state that requires attention and monitoring of the hydrogen filling person. When the ECU 40 determines that the state (T, P) of the hydrogen tank 30 is in these areas F4 and F5, the display lamp corresponding to “CAUTION” is displayed in yellow on the display unit 51 of the indicator 50. Turn on and sound the buzzer ("Caution": Step S104, Step S108).

  In the filling state determination table TB, a region F6 that is a region other than the regions F1 to F5 corresponds to a normal state as the state of the hydrogen tank 30 being filled. When the ECU 40 determines that the state (T, P) of the hydrogen tank 30 is in the region F6, the display lamp 51 corresponding to “normal” is lit in blue on the display unit 51 of the indicator 50. ("Normal": Step S104, Step S110).

  Thereafter, it is determined whether or not the filling state display process is to be ended (step S112), and the processes in steps S102 to S110 are repeatedly performed at predetermined intervals until it is determined that the process is to be ended. For example, the ECU 40 may detect that the lid 39 is closed via the open / close sensor 53 and determine that the process is completed, or the pressure sensor 37 may detect the pressure change in the hydrogen tank 30. If it is detected and there is no pressure change for a predetermined period, it may be determined that the processing is finished. The ECU 40 performs the filling state display process in this way.

  As described above, the ECU 40 performs the filling state display process and displays the filling state of the hydrogen tank 30 at the time of filling with the indicator 50, so that the hydrogen filling person can continue or stop filling the hydrogen based on the display. Can be judged. Specifically, it is effective in the following cases.

  FIG. 5 is an explanatory diagram for explaining the state of the hydrogen filling system 10 during hydrogen filling. The hydrogen filling port 32 and the hydrogen supply nozzle 62 are connected by a hydrogen filling person for filling with hydrogen (state T202). Thereafter, the ECU 40 and the control unit included in the hydrogen station ST determine whether infrared communication is possible between the infrared communication device 35 and the infrared communication device 65 via the infrared communication device 35 and the infrared communication device 65. This is done by exchanging signals. When infrared communication is possible (T204), hydrogen is filled into the hydrogen tank 30 (hereinafter also referred to as “communication filling”) while performing infrared communication between the hydrogen station ST and the ECU 40 (state T208). At this time, the ECU 40 transmits the temperature T measured by the temperature sensor 36 and the pressure P measured by the pressure sensor 37 to the hydrogen station ST in real time by infrared communication, and the state of the hydrogen tank 30 is monitored by the ECU 40 and the hydrogen station ST. While filling with hydrogen. Then, the hydrogen station ST or the ECU 40 detects SOC = 100%, exchanges a filling stop signal with each other by infrared communication, the hydrogen station ST stops supplying hydrogen, and the ECU 40 controls the supply valve 33 to close the valve. To do. When the state of the hydrogen tank 30 is not abnormal while performing infrared communication and is filled until the SOC reaches 100%, the hydrogen filling system 10 stops the filling of hydrogen (state T228).

  On the other hand, even if it is determined in the state T202 that infrared communication cannot be performed for some reason (state T206), it is possible to charge the liquid under the law. Is also called (state T210). In this case, when the hydrogen filling person visually checks the indicator 50 and manually fills the hydrogen station ST with the hydrogen filling, for example, the “caution” yellow lamp of the display unit 51 provided in the indicator 50 is turned on. The filling of hydrogen can be stopped by manually stopping filling at the time when the red lamp “ON” is turned on (state T226, state 228).

  Next, if the communication filling (state T208) is performed or the non-communication filling (state T210) is performed, the temperature T of the hydrogen tank 30 exceeds the temperature T at which there is a problem in the filling operation. A case of heating (T> 85 ° C. in this embodiment) is assumed (state T212, state T214). When the hydrogen station ST or the ECU 40 can determine whether to stop filling from the values of the temperature T, the pressure P, and the SOC and can exchange a filling stop signal with each other (T216), the hydrogen station ST stops supplying hydrogen, The ECU 40 controls the supply valve 33 and closes it to stop the hydrogen filling.

  On the other hand, when the ECU 40 determines that the filling is stopped from the values of the temperature T and the pressure P, the information cannot be transmitted to the hydrogen station ST and the hydrogen filling from the hydrogen station ST is continued (state T218). Alternatively, when the hydrogen tank is overheated and the filling of hydrogen from the hydrogen station ST is continued due to non-communication filling (state T222), the indicator 50 displays “CAUTION” or “CANCEL”, and In order to sound the buzzer and alert the hydrogen filling person (state T220, state T224), the hydrogen filling person can manually stop the filling of hydrogen before the safety valve 34 is activated (state T228). That is, the safety valve 34 is activated when the hydrogen tank 30 reaches 110 ± 10 ° C., but the indicator 50 displays a “caution” and a buzzer when the hydrogen tank 30 is 82 ° C. or higher, and a “stop” indication when the hydrogen tank 30 is 85 ° C. or higher. The buzzer sounds to warn the hydrogen filling person, so that the hydrogen filling person can manually stop the hydrogen filling before the safety valve 34 operates.

  Further, since the operation of the safety valve 34 and the release of hydrogen from the hydrogen tank 30 can be prevented in advance, it is possible to avoid the danger caused by the hydrogen released to the outside. Further, the safety valve 34 needs to be replaced once used. However, the filling state display process can prevent the operation of the safety valve 34 by the hydrogen filling person, so that the cost of replacing the safety valve can be reduced.

  As the correspondence relationship with the claims, the hydrogen station ST corresponds to the filling device described in the claims, the hydrogen corresponds to the fuel gas described in the claims, and the temperature T and the pressure P are The ECU 40 corresponds to the state of the fuel tank described in the claims, and the ECU 40 corresponds to the determination unit described in the claims.

B. Variations:
The present invention is not limited to the above-described examples and embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

(B1) Modification 1:
As a first modification, the indicator 50 may be provided with a communication state display lamp that notifies whether or not communication with the hydrogen station ST is possible (hereinafter also referred to as “communication state”). When the ECU 40 determines whether or not communication with the hydrogen station ST is possible at the time of hydrogen filling, the determination result is displayed as a communication state display lamp 54. FIG. 6 is an explanatory diagram showing an example of the communication status display lamp 54. As shown in the figure, the communication status display lamp 54 is installed at a position where the hydrogen filling person can visually recognize the hydrogen filling. The communication status display lamp 54 has two lighting portions of “communication enabled” and “communication disabled”. When communication with the hydrogen station ST is possible, “communication permitted” is turned on, and when communication with the hydrogen station ST is impossible, “communication impossible” is turned on. In this way, when the “Communication Impossible” lighting part is lit, it is possible to warn that it should be carefully filled compared with normal communication filling, and work efficiency at the time of hydrogen filling is improved. improves.

(B2) Modification 2:
In the above embodiment, in the hydrogen filling system 10, the indicator 50 indicates the filling state regardless of whether the hydrogen filling is communication filling or non-communication filling. The filling state may be notified by 50 (the filling state display by the display unit 51 and the buzzer sounding by the speaker 52). In this case, the ECU 40 determines whether or not communication with the hydrogen station ST is possible at the time of hydrogen filling, and is realized by notifying the filling state by controlling the indicator 50 only when it is determined that communication is not possible. Is possible. Even if it does in this way, the effect similar to the said Example can be acquired. Further, when the filling state is informed by the indicator 50, the filler recognizes that caution is required at the time of filling, so that the recognizability from the filler is improved and the work efficiency is improved.

(B3) Modification 3:
In the above embodiment, the indicator 50 is provided in the recess 25 for hydrogen filling. However, the indicator 50 is not limited thereto, and may be provided in another position of the vehicle 20 as long as the hydrogen filling person can recognize the hydrogen filling. For example, as shown in FIG. 7, the position of P1 that is the side part of the hydrogen filling recess 25 in the body portion of the vehicle 20, the position of P2 that is the lower part of the vehicle body, the position of P3 that is the peripheral edge of the mirror, etc. You may prepare for. Even if it does in this way, the effect similar to the said Example can be acquired.

(B4) Modification 4:
In the above embodiment, the filling state is notified step by step by the indicator 50. However, the present invention is not limited to this, and the “caution” and “stop” states described in the above embodiment are collectively installed as one warning lamp. Also good. That is, when the hydrogen tank 30 reaches a state corresponding to “caution” and “stop”, the hydrogen filling person can stop the filling. Even in this case, when hydrogen filling is performed without communicating with the hydrogen station ST, the filler can stop the hydrogen filling before the safety valve is activated.

(B5) Modification 5:
In the above embodiment, the hydrogen tank that stores the hydrogen gas supplied to the fuel cell that generates the electric power used for the driving force of the vehicle has been described as an example. However, the present invention is not limited thereto. The present invention may be applied to a case where hydrogen is filled in a hydrogen tank mounted on a vehicle driven by an engine using as a fuel. In addition, the present invention can be applied to a case where a fuel tank mounted on a vehicle is filled with various fuel gases that can be used in a fuel cell, such as a fuel cell that generates power using natural gas without being limited to hydrogen. In addition, it is supplied to a fuel cell for generating electric power for generating electric power used for other purposes only when the fuel gas supplied to the fuel cell for generating electric power used as a driving force of the vehicle is filled. It can also be applied to the case where the fuel gas is filled.

(B6) Modification 6:
In the above embodiment, a part of the functions realized by software may be realized by hardware, or a part of the functions realized by hardware may be realized by software.

DESCRIPTION OF SYMBOLS 10 ... Hydrogen filling system 20 ... Vehicle 25 ... Recess 30 for hydrogen filling 30 ... Hydrogen tank 31 ... Hydrogen filling pipe 32 ... Hydrogen filling port 33 ... Supply valve 34 ... Safety valve 35 ... Infrared communication device 36 ... Temperature sensor 37 ... Pressure sensor 38 ... Hydrogen supply pipe 39 ... Lid 40 ... Electronic control device 50 ... Indicator 51 ... Display unit 52 ... Speaker 53 ... Open / close sensor 54 ... Communication state display lamp 60 ... Hydrogen tank 61 ... Hydrogen supply pipe 62 ... Hydrogen supply nozzle 65 ... Infrared communication device T ... Temperature P ... Pressure K ... Line L ... Line F1-F6 ... Area TB ... Filling state determination table FC ... Fuel cell ST ... Hydrogen station

Claims (9)

A vehicle equipped with a communication means for communicating information relating to the filling of the fuel gas with a filling device for filling the fuel tank with the fuel gas,
Fuel gas utilization means for utilizing the fuel gas;
A fuel tank for storing fuel gas used by the fuel gas utilization means;
Tank state detection means for detecting the state in the fuel tank;
A determination unit for determining a state of filling of the fuel gas into the fuel tank based on the tank state;
A vehicle comprising: a notification unit that notifies information related to a state of filling of the fuel tank by means other than the communication means based on the determination result. The vehicle according to claim 1,
The notification unit includes a display unit that displays information related to the state of filling of the fuel tank so as to be visible,
The said display part is installed in the position which the filler who has filled the said fuel gas with the said fuel tank can visually recognize.   The vehicle according to claim 2, wherein the display unit is installed in the vicinity of a filling port for connecting the fuel tank and the filling device. A vehicle according to any one of claims 1 to 3,
The informing unit informs information relating to a filling state of the fuel tank regardless of whether or not the communication means can communicate with the filling device. A vehicle according to any one of claims 1 to 3,
The notification unit notifies information related to a filling state of the fuel tank only when the communication unit cannot communicate with the filling device. The determination unit determines the state of filling by dividing into a plurality of levels based on the tank state,
The vehicle according to any one of claims 1 to 5, wherein the notification unit notifies information related to a filling state of the fuel tank in a stepwise manner in accordance with the determination result. A vehicle according to any one of claims 1 to 6,
The notification unit further notifies whether or not the communication unit can communicate with the filling device.   The vehicle according to any one of claims 1 to 7, wherein the notification unit notifies information related to a state of filling of the fuel tank as sound. A filling state notifying device for notifying about a filling state of the fuel tank mounted on a vehicle equipped with a fuel gas utilization means for utilizing fuel gas stored in a fuel tank,
Tank state acquisition means for acquiring information on the state in the fuel tank;
A determination unit for determining a state of filling of the fuel tank based on information on a state in the fuel tank;
A filling state notifying device comprising: a notifying unit for notifying information related to a filling state of the fuel tank based on the determination result.

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