Device with power supply function and vehicle determination method

Abstract

To provide a power feeding device capable of determining whether a vehicle to be connected is a fuel cell vehicle.SOLUTION: A power feeding device includes: a vehicle connection unit 2 connected to a vehicle 10 equipped with a battery 11; a power conversion unit 3 that receives power feeding from the vehicle 10; a communication unit 6 that acquires vehicle information from the vehicle 10; a determination unit 8 that determines whether the vehicle 10 is a fuel cell vehicle equipped with a fuel cell; and a control unit 7 that controls the power conversion unit 3. The communication unit 6 acquires an SOC value of the battery 11 as the vehicle information. The determination unit 8 performs a first determination as to whether the SOC value matches a preset set value, and determines that the vehicle 10 is a fuel cell vehicle when determining it matches.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a device having a power supply function (hereinafter referred to as a "power supply device") and a vehicle determination method.

Background Art

[0002] As a power supply device, for example, the power storage system described in Patent Document 1 is known. The power storage system described in Patent Document 1 includes a charge / discharge stand connected to a vehicle equipped with a battery, and a power conditioner that exchanges power with the vehicle via the charge / discharge stand. The power conditioner disconnects the communication between the charge / discharge stand and the vehicle based on the information acquired via the charge / discharge stand.

[0003] As another power supply device, for example, the charge / discharge stand described in Patent Document 2 is known. The charge / discharge stand described in Patent Document 2 includes a charge / discharge connector compliant with the CHAdeMO standard, and a control unit that detects the voltage applied between the connector connection confirmation terminal and the ground. The control unit determines whether the connection target of the charge / discharge connector is a power storage device or an electric vehicle based on the detected voltage.

[0004] By the way, among the vehicles connectable to the power supply device, there are a battery vehicle (electric vehicle) equipped with a storage battery and a fuel cell vehicle equipped with a fuel cell. The battery vehicle can be charged and can supply power. In contrast, the fuel cell vehicle can supply power but cannot be charged.

[0005] In the conventional power supply devices described in Patent Document 1 and Patent Document 2, since it is not determined whether the connected vehicle is a battery vehicle or a fuel cell vehicle, if a fuel cell vehicle is connected, the connection with the fuel cell vehicle may be disconnected or the operation of the power supply device may stop because the fuel cell vehicle cannot be charged. For example, the user may accidentally disconnect the connection (believing that the power supply device is malfunctioning), or the control unit of the power supply device may stop the operation during automatic driving. In these cases, the user loses the opportunity to supply power.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made in view of the above circumstances, and an object thereof is to provide a power supply device and a vehicle determination method capable of determining whether a vehicle to be connected is a fuel cell vehicle or not.

Means for Solving the Problems

[0008] In order to solve the above problems, the power supply device according to the present invention includes: a vehicle connection part connected to a vehicle equipped with a battery; a power conversion part that receives power supply from the vehicle via the vehicle connection part; a communication part that acquires vehicle information from the vehicle by communicating with the vehicle; a determination part that determines whether the vehicle is a fuel cell vehicle equipped with a fuel cell; a control part that controls the power conversion part; and is provided with the communication part acquires the SOC value of the battery as the vehicle information, the determination part makes a first determination as to whether the SOC value matches a preset set value, and when it is determined that they match, determines that the vehicle is the fuel cell vehicle.

[0009] According to this configuration, it is possible to easily determine whether the connected vehicle is a fuel cell vehicle or not based on the SOC value acquired from the vehicle. Thereby, the user of the power supply device can avoid losing the power supply opportunity due to the fact that the fuel cell vehicle cannot be charged.

[0010] In the power supply device, the communication unit acquires the power supply standard time and the battery capacity of the battery as the vehicle information, the determination unit calculates the power supply time of the battery based on the SOC value and the battery capacity, makes a second determination as to whether the difference between the power supply standard time and the power supply time exceeds a predetermined threshold, determines that they match in the first determination, and when it is determined that the difference exceeds the threshold in the second determination, the vehicle can be configured to be determined as the fuel cell vehicle.

[0011] In the power supply device, the communication unit acquires the SOC value a plurality of times within a preset set time, the determination unit makes the first determination a plurality of times within the set time, and when it continues to be determined that they match within the set time, the vehicle can be configured to be determined as the fuel cell vehicle.

[0012] In order to solve the above problems, a vehicle determination method according to the present invention is a vehicle determination method for determining whether a vehicle equipped with a battery is a fuel cell vehicle, a connection step of connecting the vehicle and the device, a first information acquisition step of acquiring, by the device, the SOC value of the battery as vehicle information from the vehicle, a first determination step of making, by the device, a first determination as to whether the SOC value matches a preset set value, and a vehicle determination step of determining, by the device, that the vehicle is the fuel cell vehicle when it is determined that they match in the first determination, and is characterized by including the above steps.

[0013] According to this configuration, it is possible to easily determine whether a vehicle connected to the device is a fuel cell vehicle based on the SOC value acquired by the device from the vehicle.

[0014] The vehicle determination method is A second information acquisition step of acquiring, by the device, the power supply target time and the battery capacity of the battery as the vehicle information from the vehicle; A second determination step of calculating, by the device, the power supply time of the battery based on the SOC value and the battery capacity, and making a second determination as to whether a difference between the power supply target time and the power supply time exceeds a predetermined threshold; further comprising: In the vehicle determination step, the vehicle can be configured to be determined to be the fuel cell vehicle when the device determines that they match in the first determination and determines that the difference exceeds the threshold in the second determination.

[0015] The vehicle determination method In the first information acquisition step, the device acquires the SOC value a plurality of times within a preset setting time; In the first determination step, the device makes the first determination a plurality of times within the setting time; In the vehicle determination step, the vehicle can be configured to be determined to be the fuel cell vehicle when the device continuously determines that they match in the first determination within the setting time. [Effect of the Invention]

[0016] According to the present invention, it is possible to provide a power supply device and a vehicle determination method capable of determining whether a vehicle to be connected is a fuel cell vehicle. [Brief Description of the Drawings]

[0017]

Figure 1

Figure 2

Figure 3

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a power supply device and a vehicle determination method according to the present invention will be described with reference to the accompanying drawings.

[0019] [First embodiment] 1 shows a power supply device 1 according to a first embodiment of the present invention. The power supply device 1 is connected to a vehicle 10 equipped with a battery 11. In this embodiment, the vehicle 10 is a storage battery vehicle (electric vehicle) equipped with a storage battery or a fuel cell vehicle equipped with a fuel cell. The battery 11 is a storage battery or a fuel cell.

[0020] The power supply device 1 includes a vehicle connection unit 2, a power conversion unit 3, an input / output terminal 4, and a control device 5. The power supply device 1 performs charging operations and power supply operations from the battery storage vehicle (supplying electricity from the vehicle to the outside) for the battery storage vehicle, while only performing power supply operations from the fuel cell vehicle to the fuel cell vehicle.

[0021] The vehicle connection unit 2 is configured to be connected to a vehicle 10 equipped with a battery 11. The vehicle connection unit 2 includes a connector and a cable. The connector of the vehicle connection unit 2 is, for example, a charge / discharge connector that complies with the CHAdeMO standard.

[0022] The power conversion unit 3 is configured to receive power supply from the vehicle via the vehicle connection unit 2. The power conversion unit 3 includes a bidirectional DC / DC converter circuit, one side of which is connected to the vehicle connection unit 2 and the other side of which is connected to the input / output terminal 4.

[0023] When the vehicle 10 is a battery vehicle, the power conversion unit 3 performs a charging operation for the battery vehicle and an operation of supplying power from the battery vehicle under the control of the control device 5. When the vehicle 10 is a fuel cell vehicle, the power conversion unit 3 only performs an operation of supplying power from the fuel cell vehicle to the fuel cell vehicle under the control of the control device 5. During a power supply operation, the power conversion unit 3 boosts or lowers the DC power supplied from the vehicle 10 via the vehicle connection unit 2 and outputs it to the input / output terminal 4.

[0024] The input / output terminal 4 is connected to a power conditioner (for example, a power conditioner of a photovoltaic power generation device, a power conditioner of a power storage device, or a power conditioner for a power supply device) not shown in the figure. The DC power input to the input / output terminal 4 during the charging operation is stepped up or down and supplied to the vehicle 10 (a battery vehicle). The DC power output from the input / output terminal 4 during the power supply operation is supplied to the above-mentioned power conditioner.

[0025] The control device 5 includes a communication unit 6, a control unit 7, and a determination unit 8. The control device 5 may be composed of a digital control circuit using a microcontroller or the like, or may be composed of a circuit combining an analog control circuit and a digital control circuit.

[0026] The communication unit 6 is configured to obtain vehicle information from the vehicle 10 by communicating (for example, CAN communication or PLC communication) with the vehicle 10 via the vehicle connection unit 2. The vehicle information includes the SOC value of the battery 11, the power supply target time, and the battery capacity (total capacity).

[0027] When the vehicle 10 is a battery vehicle, the SOC value of the battery 11 indicates the remaining amount of the actual battery 11 (battery). When the vehicle 10 is a fuel cell vehicle, it is different from the remaining amount of the actual battery 11 (fuel cell) (hydrogen filling amount) and always becomes a constant value (in this embodiment, SOC50%). That is, when the vehicle 10 is a fuel cell vehicle, since the fuel cell vehicle cannot indicate the remaining amount of the battery 11 by the SOC value, as the SOC value of the battery 11, a fixed value (in this embodiment, SOC50%) is always output regardless of the remaining amount of the battery 11.

[0028] When the vehicle 10 is a battery electric vehicle, the estimated power supply time of the battery 11 is the time during which the battery can be discharged (dischargeable time), which varies depending on the SOC value of the battery, the battery capacity, etc. On the other hand, when the vehicle 10 is a fuel cell vehicle, the estimated power supply time of the battery 11 is the time during which the fuel cell can generate electricity (generable time), which varies depending on the remaining amount of the fuel cell, the battery capacity, etc. When the vehicle 10 is a fuel cell vehicle, the estimated power supply time of the battery 11 acquired by the communication unit 6 is not a fixed value different from the SOC value of the battery 11, but a value reflecting the hydrogen filling amount.

[0029] The control unit 7 is configured to control the charging operation and the power supply operation of the power conversion unit 3. For example, while communicating with the above-mentioned power conditioner, the control unit 7 determines whether to cause the power conversion unit 3 to perform a charging operation and a power supply operation or only a power supply operation based on the vehicle information acquired by the communication unit 6. During the charging operation or the power supply operation, the control unit 7 controls the output voltage and / or the output current of the power conversion unit 3. Also, when having a function of automatic driving that automatically switches between the charging operation and the power supply operation, the control unit 7 determines whether to cause the power conversion unit 3 to perform a charging operation during automatic driving.

[0030] The determination unit 8 is configured to determine whether the vehicle 10 is a fuel cell vehicle. Specifically, when the vehicle 10 is connected to the vehicle connection unit 2, the determination unit 8 executes the vehicle determination process shown in FIG. 2, that is, the vehicle determination method according to the present embodiment.

[0031] The determination unit 8 determines whether the connector of the vehicle connection unit 2 is locked (S1). For example, when the connector of the vehicle connection unit 2 is connected to the vehicle 10 and the connector lock button provided on the operation unit (not shown) of the power supply device 1 is pressed by the user, the connector of the vehicle connection unit 2 is locked (corresponding to the "connection step" of the present invention).

[0032] When the connector of the vehicle connection part 2 is locked (Yes in S1), the communication part 6 acquires vehicle information from the vehicle 10 via the vehicle connection part 2 (S2). The communication part 6 requests the vehicle 10 to send the vehicle information, and the vehicle 10 that has received the request sends the SOC value of the battery 11, the power supply standard time, and the battery capacity (total capacity) to the communication part 6 (corresponding to the "first information acquisition step" and the "second information acquisition step" of the present invention). The vehicle information acquired by the communication part 6 is shared with the control part 7 and the determination part 8.

[0033] When the communication part 6 acquires the vehicle information, the determination part 8 makes a first determination as to whether the SOC value included in the vehicle information matches a preset set value (S3, corresponding to the "first determination step" of the present invention). The set value is the SOC value acquired when the vehicle 10 is a fuel cell vehicle, that is, it is set to SOC50%.

[0034] When the SOC value included in the vehicle information is SOC50%, the determination part 8 determines that the SOC value matches the set value (Yes in S3), and when the SOC value included in the vehicle information is not SOC50%, the determination part 8 determines that the SOC value does not match the set value (No in S3).

[0035] Note that the SOC value of the fuel cell vehicle included in the vehicle information currently shows the same value (SOC50%) regardless of the automobile manufacturer, but in the future, there may be some variations depending on the automobile manufacturer. For example, the SOC value of the fuel cell vehicle manufactured by Company A may be SOC49%, and the SOC value of the fuel cell vehicle manufactured by Company B may be SOC51%. Therefore, when the SOC value is included in the range of the set value ±5% (SOC50% ±5%), the determination part 8 may determine that the SOC value matches the set value (Yes in S3), and when the SOC value is not included in the above range, the determination part 8 may determine that the SOC value does not match the set value (No in S3).

[0036] When the determination part 8 determines that the SOC value does not match the set value (No in S3), the determination part 8 determines that the vehicle 10 is not a fuel cell vehicle (S6, corresponding to the "vehicle determination step" of the present invention). In this case, the determination part 8 may determine that the vehicle 10 is a battery electric vehicle.

[0037] When the determination unit 8 determines that the SOC value matches the set value (Yes in S3), it makes a second determination as to whether the power supply target time included in the vehicle information deviates from the calculated value (calculated power supply time) (S4). Specifically, the determination unit 8 calculates the power supply time of the battery 11 based on the SOC value and the battery capacity included in the vehicle information, and determines whether the difference between the power supply target time and the power supply time exceeds a predetermined threshold (corresponding to the "second determination step" of the present invention).

[0038] The power supply time is calculated, for example, by (battery capacity × SOC value) [kWh] ÷ (inputtable voltage × inputtable current) [kW]. The inputtable voltage and the inputtable current are the inputtable voltage and the inputtable current for the power conversion unit 3, and these values are stored in advance by the determination unit 8.

[0039] The predetermined threshold is set to, for example, 1.5 hours. In this embodiment, when the vehicle 10 is a battery electric vehicle and the SOC value is 50%, the difference between the power supply target time and the calculated value (calculated power supply time) is within 1.5 hours, whereas when the vehicle 10 is a fuel cell vehicle, the above difference is likely to exceed 1.5 hours. Note that this threshold can be appropriately changed as long as it can distinguish between the case where the vehicle 10 is a battery electric vehicle with an SOC value of 50% and the case where the vehicle 10 is a fuel cell vehicle.

[0040] When the difference between the power supply target time and the calculated power supply time exceeds 1.5 hours (Yes in S4), the determination unit 8 determines that the vehicle 10 is a fuel cell vehicle (S5, corresponding to the "vehicle determination step" of the present invention), while when the difference is within 1.5 hours (No in S4), the determination unit 8 determines that the vehicle 10 is not a fuel cell vehicle (S6).

[0041] When the power supply device 1 has a function of automatic operation that automatically switches between the charging operation and the power supply operation, when the determination unit 8 determines that the vehicle 10 is not a fuel cell vehicle (S6), the control unit 7 controls the power conversion unit 3 so that the power conversion unit 3 performs the charging operation and the power supply operation during automatic operation. On the other hand, when the determination unit 8 determines that the vehicle 10 is a fuel cell vehicle (S5), the control unit 7 controls the power conversion unit 3 so that the power conversion unit 3 performs only the power supply operation during automatic operation.

[0042] According to the power supply device 1 according to the present embodiment, it is possible to easily determine whether the connected vehicle 10 is a fuel cell vehicle or not based on the SOC value acquired from the vehicle 10. Thereby, the user of the power supply device 1 can avoid losing the power supply opportunity due to the fact that the fuel cell vehicle cannot be charged.

[0043] Further, according to the power supply device 1 according to the present embodiment, even when the connected vehicle 10 is a battery vehicle and the acquired SOC value is accidentally 50% SOC, by performing a second determination regarding the power supply standard time, specifically, by confirming that the difference between the power supply standard time and the calculated value (calculated power supply time) falls within a predetermined time in the second determination, it is possible to determine that the vehicle 10 is not a fuel cell vehicle (the vehicle 10 is a battery vehicle).

[0044] [Second Embodiment] The power supply device according to the second embodiment of the present invention has the same configuration as the power supply device 1 according to the first embodiment, and only the vehicle determination process (vehicle determination method) performed by the determination unit 8 is different. The flowchart of the vehicle determination method according to the second embodiment is shown in FIG. 3.

[0045] The determination unit 8 determines whether or not the connector of the vehicle connection unit 2 is locked (S11), in the same manner as in the first embodiment. When the connector of the vehicle connection unit 2 is locked (Yes in S11), the communication unit 6 acquires vehicle information from the vehicle 10 (S12). In the present embodiment, it is sufficient that at least the SOC value of the battery 11 is included in the vehicle information.

[0046] When the communication unit 6 acquires vehicle information, the determination unit 8 performs a first determination as in the first embodiment on whether or not the SOC value included in the vehicle information matches a preset set value (SOC50%) (S13).

[0047] When the determination unit 8 determines that the SOC value does not match the set value (No in S13), the determination unit 8 determines that the vehicle 10 is not a fuel cell vehicle (S16). In this case, the determination unit 8 may determine that the vehicle 10 is a battery vehicle.

[0048] When the determination unit 8 determines that the SOC value matches the set value (Yes in S13), the determination unit 8 performs a third determination on whether or not a predetermined set time has elapsed since the start of the vehicle determination process (S14). The predetermined set time is set to 1 minute in this embodiment. This set time can be appropriately changed as long as it is set to the time when the SOC value acquired from the battery vehicle changes (decreases from SOC50%) according to the remaining amount of the battery.

[0049] If one minute has not elapsed since the start of the vehicle determination process (No in S14), the communication unit 6 acquires the SOC value from the vehicle 10 again (S12), and the determination unit 8 performs the first determination again (S13).

[0050] If one minute has elapsed since the start of the vehicle determination process (Yes in S14), the determination unit 8 determines that the vehicle 10 is a fuel cell vehicle (S15).

[0051] According to the power supply device 1 according to this embodiment, as in the first embodiment, it is possible to easily determine whether or not the connected vehicle 10 is a fuel cell vehicle based on the SOC value acquired from the vehicle 10. Thereby, the user of the power supply device 1 can avoid losing the power supply opportunity due to the inability to charge the fuel cell vehicle.

[0052] Also, according to the power supply device 1 according to the present embodiment, even when the connected vehicle 10 is a battery vehicle and the acquired SOC value accidentally reaches 50% SOC, the communication unit 6 acquires the SOC value a plurality of times within the set time (one minute), and the determination unit 8 performs the first determination a plurality of times. As a result, the SOC value will change during that time, so it can be determined that the vehicle 10 is not a fuel cell vehicle (the vehicle 10 is a battery vehicle).

[0053] [Modification Example] As described above, embodiments of the power supply device and the vehicle determination method according to the present invention have been described. However, the present invention is not limited to the above embodiments.

[0054] The power supply device of the present invention includes a vehicle connection portion connected to a vehicle equipped with a battery, a power conversion portion that receives power supply from the vehicle via the vehicle connection portion, a communication portion that acquires vehicle information from the vehicle by communicating with the vehicle, a determination portion that determines whether the vehicle is a fuel cell vehicle equipped with a fuel cell, and a control portion that controls the power conversion portion. The communication portion acquires the SOC value of the battery as vehicle information, and the determination portion makes a first determination as to whether the SOC value matches a preset set value. If it is determined that they match and the vehicle is determined to be a fuel cell vehicle, the configuration can be changed as appropriate.

[0055] The vehicle determination method of the present invention is a vehicle determination method for determining whether a vehicle equipped with a battery is a fuel cell vehicle, and includes a connection step of connecting the vehicle and the device, a first information acquisition step of acquiring the SOC value of the battery as vehicle information from the vehicle by the device, a first determination step of making a first determination by the device as to whether the SOC value matches a preset set value, and a vehicle determination step of determining by the device that the vehicle is a fuel cell vehicle when it is determined that they match in the first determination. If so, the configuration can be changed as appropriate.

[0056] In the above-described first embodiment, a first determination is made as to whether or not the SOC value included in the vehicle information matches a preset value, and a second determination is made as to whether or not the power supply target time included in the vehicle information deviates from the calculated value (calculated power supply time). However, in the present invention, at least the first determination may be executed.

[0057] The power conversion unit of the present invention may be composed of a bidirectional DC / DC converter circuit and a bidirectional inverter circuit that performs a DC / AC conversion operation and an AC / DC conversion operation. One side of the bidirectional DC / DC converter circuit is connected to the vehicle connection part 2, and the other side is connected to the DC side of the bidirectional inverter circuit. The AC side of the bidirectional inverter circuit is connected to the input / output terminal 4. At the input / output terminal 4, AC power is input and output. In this case, it becomes possible to connect an external load such as an electrical product to the input / output terminal 4, and power can be supplied from the vehicle 10 to the external load.

[0058] When the power supply device of the present invention includes a display unit that indicates the state of the battery 11, the display unit may display the SOC value when it is determined that the vehicle 10 is not a fuel cell vehicle (is a storage battery vehicle), and when it is determined that the vehicle 10 is a fuel cell vehicle, instead of displaying the SOC value, it may display the power supply target time or the calculated power supply time.

[0059] The device in the vehicle determination method of the present invention may be a charging device that only performs a charging operation. According to the vehicle determination method of the present invention, by determining that the vehicle is a fuel cell vehicle with a charging device, it is possible to notify the user that the reason for not being able to charge is "because the vehicle is a fuel cell vehicle (not a failure of the charging device itself)".

Explanation of Reference Numerals

[0060] 1 Power supply device 2 Vehicle connection part 3 Power conversion unit 4 Input / output terminal 5 Control device 6 Communication unit 7 Control unit 8 Determination unit 10 Vehicle 11 Battery

Claims

1. A vehicle connection part connected to a vehicle equipped with a battery, A power conversion part that receives power supply from the vehicle via the vehicle connection part, A communication part that acquires vehicle information from the vehicle by communicating with the vehicle, A determination part that determines whether the vehicle is a fuel cell vehicle equipped with a fuel cell, A control part that controls the power conversion part, Comprising: The communication part acquires the SOC value of the battery as the vehicle information, The determination part makes a first determination as to whether the SOC value matches a preset set value, and if it is determined that they match, determines that the vehicle is the fuel cell vehicle, The communication part acquires the power supply standard time and the battery capacity of the battery as the vehicle information, The determination part calculates the power supply time of the battery based on the SOC value and the battery capacity, and makes a second determination as to whether the difference between the power supply standard time and the power supply time exceeds a predetermined threshold value. If it is determined that they match in the first determination and it is determined that the difference exceeds the threshold value in the second determination, it is determined that the vehicle is the fuel cell vehicle. A power supply device characterized by the above.

2. A vehicle connection part connected to a vehicle equipped with a battery, A power conversion part that receives power supply from the vehicle via the vehicle connection part, A communication part that acquires vehicle information from the vehicle by communicating with the vehicle, A determination part that determines whether the vehicle is a fuel cell vehicle equipped with a fuel cell, A control part that controls the power conversion part, Comprising: The communication part acquires the SOC value of the battery as the vehicle information, The determination part makes a first determination as to whether the SOC value matches a preset set value, and if it is determined that they match, determines that the vehicle is the fuel cell vehicle, The communication part acquires the SOC value a plurality of times within a preset set time, The determination part makes the first determination a plurality of times within the set time, and if it is continuously determined that they match within the set time, determines that the vehicle is the fuel cell vehicle. A power supply device characterized by the above.

3. A vehicle determination method for determining whether a vehicle equipped with a battery is a fuel cell vehicle, A connection step of connecting the vehicle and the device, A first information acquisition step of acquiring, by the device, the SOC value of the battery as vehicle information from the vehicle, A first determination step of making, by the device, a first determination as to whether the SOC value matches a preset set value. a vehicle determination step of determining that the vehicle is the fuel cell vehicle when it is determined by the said device that they match in the said first determination; a second information acquisition step of acquiring, by the said device, the power supply standard time and the battery capacity of the battery as the said vehicle information from the said vehicle; a second determination step of calculating, by the said device, the power supply time of the battery based on the said SOC value and the battery capacity, and making a second determination as to whether or not the difference between the power supply standard time and the power supply time exceeds a predetermined threshold; further comprising; in the said vehicle determination step, when it is determined by the said device that they match in the said first determination and that it exceeds in the said second determination, determining that the vehicle is the fuel cell vehicle; A vehicle determination method characterized by the above.

4. A vehicle determination method for determining whether or not a vehicle equipped with a battery is a fuel cell vehicle, a connection step of connecting the said vehicle and the device; a first information acquisition step of acquiring, by the said device, the SOC value of the battery as vehicle information from the said vehicle; a first determination step of making a first determination by the said device as to whether or not the SOC value matches a preset set value; a vehicle determination step of determining that the vehicle is the fuel cell vehicle when it is determined by the said device that they match in the said first determination; including, in the said first information acquisition step, acquiring, by the said device, the SOC value a plurality of times within a preset set time; in the said first determination step, making the said first determination a plurality of times within the said set time by the said device; in the said vehicle determination step, when it is continuously determined by the said device that they match in the said first determination within the said set time, determining that the vehicle is the fuel cell vehicle; A vehicle determination method characterized by the above.

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