Charging device

Abstract

To provide a charging device capable of improving the operating rate of a charging port even when a vehicle equipped with a storage battery is a vehicle that does not support dynamic control.SOLUTION: A charging device 1 includes charging ports 4-1 to 4-6, power supply units 2-1 to 2-10, a switching section 3, and a control section 5, and has a dynamic control function. The control section 5 includes: an information communication section 5a that acquires vehicle information regarding whether a vehicle supports dynamic control or not from a vehicle EV equipped with a storage battery; a unit number calculation section 5b that calculates a required number of the power supply units 2-1 to 2-10; and an allocation section 5c that allocates the required number of the power supply units 2-1 to 2-10 to the charging ports 4-1 to 4-6. The unit number calculation section 5b sets the required number to the allocatable minimum unit number, in the case of the non-supporting vehicle, whereas it sets the required number to be greater than the minimum unit number, in the case of the supporting vehicle.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a charging device that charges a vehicle equipped with a storage battery. [Background technology]

[0002] In the CHAdeMO standard, when a charging device transmits an "output current value" to a vehicle equipped with a storage battery, the vehicle equipped with a storage battery transmits a "charging current command value" within the range of the output current value to the charging device. The charging device outputs a charging current according to the charging current command value to charge the vehicle equipped with a storage battery.

[0003] A charging device cannot change the "available output current value" after starting charging of a vehicle equipped with a storage battery, but if it has a dynamic control function, it can change the "available output current value" which should be a constant value. In other words, a charging device with a dynamic control function can increase or decrease the output by itself during charging.

[0004] A known charging device having a dynamic control function is, for example, that described in Patent Document 1. The charging device described in Patent Document 1 includes a plurality of charging ports configured to be connectable to a vehicle equipped with a storage battery, a plurality of power supply units, a switching unit that switches the connection state between the power supply units and the charging ports, and a control unit.

[0005] In the charging device described in Patent Document 1, a control unit changes the output power distributed to multiple vehicles equipped with storage batteries according to the state of the storage batteries in the vehicles equipped with storage batteries. This makes it possible for the charging device to start charging a second vehicle equipped with a storage battery while charging a first vehicle equipped with a storage battery, thereby improving the utilization rate of the charging port.

[0006] However, just as there are charging devices that have a dynamic control function and those that do not, there are also vehicles equipped with storage batteries that are dynamic control compatible and vehicles that are not dynamic control compatible. In order for a charging device with a dynamic control function to exercise its dynamic control function, the vehicle equipped with a storage battery connected to the charging port needs to be a vehicle that is dynamic control compatible.

[0007] In the charging device described in Patent Document 1, if the first vehicle equipped with a storage battery is a vehicle that does not support dynamic control, the charging device cannot increase or decrease the output by itself during charging (cannot exercise the dynamic control function). As a result, the charging device described in Patent Document 1 cannot start charging the second vehicle equipped with a storage battery until the first vehicle equipped with a storage battery reduces the "charging current command value", and the operating rate of the charging port cannot be improved. In particular, if the charging rate of the first vehicle equipped with a storage battery is low, the user of the second vehicle equipped with a storage battery will have to wait for a long time, and the need to charge immediately will not be met. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Publication No. 2020-61880 Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been made in consideration of the above-mentioned circumstances, and its objective is to provide a charging device that can improve the operating rate of the charging port even if the vehicle equipped with a storage battery is a vehicle that does not support dynamic control. [Means for solving the problem]

[0010] In order to solve the above problems, a charging device according to the present invention comprises: A plurality of charging ports configured to be connectable to a vehicle equipped with a storage battery; A plurality of power supply units that output direct current; A switching unit that switches a connection state between the plurality of power supply units and the plurality of charging ports; A control unit that controls the switching unit, A charging device having a dynamic control function, The control unit is an information communication unit that acquires vehicle information from the storage battery-equipped vehicle connected to the charging port; a number calculation unit that calculates a required number of the power supply units based on the vehicle information; an allocation unit that controls the switching unit to allocate the requested number of power supply units to the charging ports; Equipped with The information communication unit includes: As the vehicle information, information regarding whether the storage battery-equipped vehicle is a dynamic control compatible vehicle or a dynamic control incompatible vehicle is acquired; The number calculation unit, In the case of the dynamic control incompatible vehicles, the requested number is set to the minimum number that can be allocated, whereas in the case of the dynamic control compatible vehicles, the requested number is set to a number greater than the minimum number.

[0011] In this configuration, the vehicle number calculation unit limits the requested number of power supply units to the minimum number that can be allocated for vehicles that do not support dynamic control, so that users of vehicles equipped with storage batteries can start charging immediately after connecting a charging port to the vehicle equipped with a storage battery. Therefore, with this configuration, there is no need to wait for the allocation of a power supply unit at each charging port, and the operating rate of the charging ports can be improved.

[0012] In the charging device, The plurality of charging ports are C (C is an integer equal to or greater than 2) charging ports, The plurality of power supply units are U power supply units (U is an integer equal to or greater than C), The number calculation unit, The minimum number of vehicles not compatible with the dynamic control is a value calculated by U÷C, rounded down to the nearest whole number, The required number in the case of the dynamic control-compatible vehicles can be set to a rated number, which is the number of vehicles for which the current output from the charging port is the rated current, and the rated number can be set to the decimal point of the value obtained by dividing the rated current value of the charging port by the rated current value of the power supply unit, rounded up.

[0013] In the charging device, When the number of available units, which are the power supply units that are not connected to any of the plurality of charging ports among the plurality of power supply units, is smaller than the requested number, The allocation unit, In the case of the vehicle that does not support dynamic control, a disconnection process is performed to disconnect a usage unit, which is the power supply unit connected to any one of the plurality of charging ports, from the charging port, and allocate the requested number of vehicles. In the case of the dynamic control-compatible vehicle, the disconnection process can be performed and a number of vehicles less than the requested number can be allocated.

[0014] In the charging device, The allocation unit, The disconnection process may be performed in order of the charging ports having the longest charging times among the plurality of charging ports, and if the allocation is not completed, the disconnection process may be performed again in the order.

[0015] In the charging device, The allocation unit, If the number of usage units connected to the charging port is more than the minimum number, one or more of the usage units are disconnected in the disconnection process, and if the number of usage units connected to the charging port is equal to or less than the minimum number, the usage units are not disconnected. Effect of the Invention

[0016] According to the present invention, it is possible to provide a charging device that can improve the operating rate of the charging port even when the vehicle equipped with the storage battery is a vehicle that does not support dynamic control. [Brief description of the drawings]

[0017] [Figure 1] 1 is a block diagram of a charging device according to the present invention; [Diagram 2] 4 is a flowchart of a process performed by a unit number calculation unit of the charging device according to the present invention. [Diagram 3] 4 is a flowchart of a process performed by an allocation unit of the charging device according to the present invention. [Figure 4] FIG. 4 is a diagram showing a correspondence relationship between charging ports and storage battery-equipped vehicles in the first embodiment. [Diagram 5] FIG. 4 is a diagram showing the number of power supply units allocated in the first embodiment. [Figure 6] FIG. 11 is a diagram showing a correspondence relationship between charging ports and storage battery-equipped vehicles in a second embodiment. [Figure 7] FIG. 11 is a diagram showing the number of power supply units allocated in the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0019] Fig. 1 shows a charging device 1 according to one embodiment of the present invention. The charging device 1 has a dynamic control function, and includes a power supply unit 2, a switching unit 3, a charging port unit 4, and a control unit 5. The charging device 1 generates a DC charging current based on AC power supplied from an AC power source PS, and supplies the charging current to a storage battery of a storage battery-equipped vehicle EV (EV1 to EV6 in Fig. 1).

[0020] In the CHAdeMO standard, when a charging device transmits an "outputtable current value" to a battery-equipped vehicle EV, the battery-equipped vehicle EV transmits a "charging current command value" within the range of the outputtable current value to the charging device. The charging device outputs a charging current according to the charging current command value to charge the battery-equipped vehicle EV. A charging device that does not have a dynamic control function cannot change the "outputtable current value" after starting charging of the battery-equipped vehicle EV.

[0021] On the other hand, the charging device 1 having the dynamic control function can vary the "outputtable current value" which should be a constant value when the storage battery equipped vehicle EV is a dynamic control compatible vehicle. In other words, when the storage battery equipped vehicle EV is a dynamic control compatible vehicle, the charging device 1 can increase or decrease the output (charging current) by itself during charging.

[0022] The power supply section 2 is made up of a plurality of (ten in this embodiment) power supply units 2-1 to 2-10. Each of the power supply units 2-1 to 2-10 includes an AC / DC converter and a DC / DC converter, and generates a desired DC current based on AC power supplied from an AC power source PS.

[0023] The switching unit 3 switches the connection state between the power supply unit 2 and the charging port unit 4 under the control of the control unit 5. The switching unit 3 is formed, for example, of a relay circuit made up of a plurality of relays.

[0024] The charging port section 4 is made up of a plurality of (six in this embodiment) charging ports 4-1 to 4-6. Each of the charging ports 4-1 to 4-6 is equipped with a connector and a cable configured to be connectable to the battery-equipped vehicle EV. The connector and the cable are compliant with the CHAdeMO standard.

[0025] The control unit 5 includes an information communication unit 5a, a number calculation unit 5b, an allocation unit 5c, and a power control unit 5d. The control unit 5 may be configured with a digital control circuit using a microcontroller or the like, or may be configured with a circuit that combines an analog control circuit and a digital control circuit.

[0026] The information communication unit 5a acquires vehicle information from the storage battery equipped vehicle EV connected to the charging port unit 4, and provides charging device information to the storage battery equipped vehicle EV. The vehicle information includes, for example, information on whether the storage battery equipped vehicle EV is a dynamic control compatible vehicle or a dynamic control incompatible vehicle, and information on the "charging current command value." The charging device information includes, for example, information on the "outputtable current value" of the charging device 1.

[0027] When the information communication unit 5a transmits the "outputtable current value" to the battery-equipped vehicle EV, the battery-equipped vehicle EV transmits a "charging current command value" within the range of the outputtable current value to the information communication unit 5a. When the control unit 5 changes the "outputtable current value", the battery-equipped vehicle EV (dynamic control compatible vehicle) transmits a "charging current command value" within the range of the changed outputtable current value to the information communication unit 5a. The charging device 1 outputs a charging current according to the charging current command value to charge the battery-equipped vehicle EV.

[0028] The number calculation unit 5b calculates the requested number of power supply units 2-1 to 2-10 based on the vehicle information acquired by the information communication unit 5a. When the storage battery equipped vehicle EV is a dynamic control incompatible vehicle, the number calculation unit 5b sets the requested number to the minimum allocable number, and when the storage battery equipped vehicle EV is a dynamic control compatible vehicle, the number calculation unit 5b sets the requested number to the rated number, which is the number of units at which the current output from the charging ports 4-1 to 4-6 becomes the rated current.

[0029] Number calculation unit 5b sets the minimum number to a number that will prevent each charging port 4-1 to 4-6 from waiting for allocation of a power supply unit 2-1 to 2-10 when dynamic control non-compatible vehicles are connected to all charging ports 4-1 to 4-6. Specifically, the minimum number is set to a value (=1) obtained by rounding down the decimal point of the value calculated by "number U of power supply units 2-1 to 2-10 (U=10) ÷ number C of charging ports 4-1 to 4-6 (C=6)" (10÷6=1.66...). In this embodiment, the minimum number is 1.

[0030] Unit number calculation unit 5b sets the rated number to the value (=3) obtained by dividing the rated current value of each charging port 4-1 to 4-6 (125 [A] in this embodiment) by the rated current value of one of power supply units 2-1 to 2-10 (50 [A] in this embodiment) (125÷50=2.5), rounding up to the nearest whole number. In this embodiment, the rated number is 3.

[0031] Allocation unit 5c controls switching unit 3 to allocate power supply units 2-1 to 2-10 to charging ports 4-1 to 4-6. The allocation process is performed depending on the magnitude relationship between the number of available units, which are units among power supply units 2-1 to 2-10 that are not connected to any of charging ports 4-1 to 4-6, and the requested number calculated by number calculation unit 5b.

[0032] If the number of available units is equal to or greater than the requested number, the allocation unit 5c allocates the requested number of units calculated by the number calculation unit 5b, regardless of whether the battery-equipped vehicle EV before charging starts is a dynamic control-incompatible vehicle or a dynamic control-compatible vehicle.

[0033] If the number of available units is less than the requested number and the battery-equipped vehicle EV before charging is a non-dynamic control compatible vehicle, the allocation unit 5c performs a disconnection process and allocates the requested number of units. As the disconnection process, the allocation unit 5c disconnects the in-use units, which are the units being charged and connected to the charging ports 4-1 to 4-6 among the power supply units 2-1 to 2-10, from the charging ports 4-1 to 4-6 by the number of units that are insufficient.

[0034] When the number of available units is less than the requested number and the storage battery equipped vehicle EV before the start of charging is a dynamic control compatible vehicle, the allocation unit 5c performs a disconnection process and allocates the number of units equal to the requested number minus 1. The reason for setting the number of units equal to the requested number minus 1 is to prevent excessive disconnection of the units in use.

[0035] The allocation unit 5c executes the disconnection process in order from the charging port having the longest charging time among the charging ports 4-1 to 4-6. If the allocation is not completed even after one round, the allocation unit 5c executes the disconnection process again in the above order.

[0036] However, when the number of usage units connected to the charging port for which the disconnection process is performed is more than the minimum number (two or more in this embodiment), allocation unit 5c disconnects only one usage unit in one disconnection process (first round), whereas when the number of usage units connected to the charging port is equal to or less than the minimum number (one in this embodiment), allocation unit 5c does not disconnect the usage unit. For example, a charging port that is connected to a vehicle that does not support dynamic control among charging ports 4-1 to 4-6 has only one usage unit, so it is not disconnected.

[0037] The power control unit 5d controls the power supply units 2-1 to 2-10 on a unit-by-unit basis. Specifically, the power control unit 5d controls a usage unit among the power supply units 2-1 to 2-10 so that the usage unit outputs a charging current according to a charging current command value to charge the storage battery vehicle EV.

[0038] FIG. 2 shows a flowchart of the process performed by the number-of-units calculation unit 5b, and FIG. 3 shows a flowchart of the process performed by the allocation unit 5c.

[0039] For example, when a battery-equipped vehicle EV1 is connected to the charging port 4-1, the number calculation unit 5b determines whether the battery-equipped vehicle EV1 is a dynamic control-compatible vehicle or a dynamic control incompatible vehicle based on the vehicle information acquired by the information communication unit 5a (S11).

[0040] If the battery-equipped vehicle EV1 is a dynamic control-compatible vehicle (Yes in S11), the number calculation unit 5b calculates the rated number as the required number (S12). On the other hand, if the battery-equipped vehicle EV1 is a dynamic control-incompatible vehicle (No in S11), the number calculation unit 5b calculates the minimum number as the required number (S13). In this embodiment, the rated number is 3, and the minimum number is 1. Note that the number calculation unit 5b may store the calculated rated number and minimum number, and select one of them depending on the determination result in S11.

[0041] Next, the allocation unit 5c judges whether the number of available units is equal to or greater than the requested number (S21). If the number of available units is equal to or greater than the requested number (Yes in S21), the allocation unit 5c allocates the requested number calculated by the number calculation unit 5b (S22) and ends the process.

[0042] If the number of available units is less than the requested number (No in S21), the allocation unit 5c determines whether the battery-equipped vehicle EV1 is a dynamic control compatible vehicle or a dynamic control incompatible vehicle (S23). The allocation unit 5c may refer to the determination result of S11 made by the number calculation unit 5b.

[0043] If the battery-equipped vehicle EV1 is a dynamic control-compatible vehicle (Yes in S23), the allocation unit 5c changes the requested number to "requested number - 1" (S24), performs disconnection processing and allocates the requested number (= "requested number - 1") (S25), and ends the processing. On the other hand, if the battery-equipped vehicle EV1 is a dynamic control-incompatible vehicle (No in S23), the allocation unit 5c performs disconnection processing and allocates the requested number without changing the requested number (S25), and ends the processing.

[0044] [Example 1] A first embodiment of the charging device 1 will be described with reference to Fig. 4 and Fig. 5. The first embodiment is an example in which all of the storage battery mounted vehicles EV1 to EV6 are non-dynamic control compatible vehicles.

[0045] At time t1, when battery-equipped vehicle EV1 is connected to charging port 4-1, number calculation unit 5b sets the requested number to the minimum number (=1) because battery-equipped vehicle EV1 is a non-dynamic control compatible vehicle. Allocation unit 5c allocates power supply unit 2-1 to charging port 4-1. In other words, allocation unit 5c controls switching unit 3 to connect charging port 4-1 and power supply unit 2-1.

[0046] The power supply units 2-1 to 2-10 are assigned unit numbers 1 to 10 for control purposes, and the allocation unit 5c allocates the power supply units 2-1 to 2-10 in ascending order of unit number. In this embodiment, the power supply unit 2-1 has the smallest unit number, 1, so the allocation unit 5c allocates the power supply unit 2-1 to the charging port 4-1.

[0047] At time t2, when battery-equipped vehicle EV2 is connected to charging port 4-2, number calculation unit 5b sets the requested number to the minimum number (=1) because battery-equipped vehicle EV2 is a non-dynamic control compatible vehicle. Allocation unit 5c allocates power supply unit 2-2 to charging port 4-2. At this point, the total number of allocated vehicles is two.

[0048] At time t3, when the battery-equipped vehicle EV3 is connected to the charging port 4-3, the number calculation unit 5b sets the requested number to the minimum number (=1) because the battery-equipped vehicle EV3 is a non-dynamic control compatible vehicle. The allocation unit 5c allocates the power supply unit 2-3 to the charging port 4-3. At this point in time, the total number of allocated vehicles is 3.

[0049] At time t4, when battery-equipped vehicle EV4 is connected to charging port 4-4, number calculation unit 5b sets the requested number to the minimum number (=1) because battery-equipped vehicle EV4 is a non-dynamic control compatible vehicle. Allocation unit 5c allocates power supply unit 2-4 to charging port 4-4. At this point, the total number of allocated vehicles is four.

[0050] At time t5, when battery-equipped vehicle EV5 is connected to charging port 4-5, number calculation unit 5b sets the requested number to the minimum number (=1) because battery-equipped vehicle EV5 is a non-dynamic control compatible vehicle. Allocation unit 5c allocates power supply unit 2-5 to charging port 4-5. At this point, the total number of allocated vehicles is 5.

[0051] At time t6, when battery-equipped vehicle EV6 is connected to charging port 4-6, number calculation unit 5b sets the requested number to the minimum number (=1) because battery-equipped vehicle EV6 is a non-dynamic control compatible vehicle. Allocation unit 5c allocates power supply unit 2-6 to charging port 4-6. At this point, the total number of allocated vehicles is 6.

[0052] As shown in the first embodiment, when non-dynamic control compatible vehicles are connected to the charging ports 4-1 to 4-6, the allocation unit 5c in the charging device 1 allocates the minimum number (=1), so that no allocation wait occurs at each of the charging ports 4-1 to 4-6. As a result, the operation rate of the charging ports 4-1 to 4-6 can be improved.

[0053] [Example 2] 6 and 7, a second embodiment of the charging device 1 will be described. The second embodiment is an example in which the storage battery equipped vehicles EV1, EV2, EV4, and EV6 are dynamic control compatible vehicles, and the storage battery equipped vehicles EV3 and EV5 are dynamic control incompatible vehicles.

[0054] At time t1, when battery-equipped vehicle EV1 is connected to charging port 4-1, number calculation unit 5b sets the requested number to the rated number (=3) because battery-equipped vehicle EV1 is a dynamic control-compatible vehicle. Allocation unit 5c allocates power supply units 2-1, 2-2, and 2-3 to charging port 4-1. In other words, allocation unit 5c controls switching unit 3 to connect charging port 4-1 to power supply units 2-1, 2-2, and 2-3. At this point in time, the total number of allocated vehicles is three.

[0055] At time t2, when battery-equipped vehicle EV2 is connected to charging port 4-2, vehicle number calculation unit 5b sets the requested number to the rated number (=3) because battery-equipped vehicle EV2 is a dynamic control-compatible vehicle. Allocation unit 5c allocates power supply units 2-4, 2-5, and 2-6 to charging port 4-2. At this point, the total number of allocated vehicles is 6.

[0056] At time t3, when the battery-equipped vehicle EV3 is connected to the charging port 4-3, the number calculation unit 5b sets the requested number to the minimum number (=1) because the battery-equipped vehicle EV3 is a non-dynamic control compatible vehicle. The allocation unit 5c allocates the power supply unit 2-7 to the charging port 4-3. At this point in time, the total number of allocated vehicles is 7.

[0057] At time t4, when battery-equipped vehicle EV4 is connected to charging port 4-4, number calculation unit 5b sets the requested number to the rated number (=3) because battery-equipped vehicle EV4 is a dynamic control-compatible vehicle. Allocation unit 5c allocates power supply units 2-8, 2-9, and 2-10 to charging port 4-4. At this point, the total number of allocated vehicles is 10.

[0058] At time t5, when the storage battery equipped vehicle EV5 is connected to the charging port 4-5, the number calculation unit 5b sets the requested number to the minimum number (=1) because the storage battery equipped vehicle EV5 is a vehicle that does not support dynamic control. At time t5, the number of available units is 0, which is less than the requested number, and as described above, the storage battery equipped vehicle EV5 is a vehicle that does not support dynamic control. Therefore, the allocation unit 5c allocates the requested number of vehicles, including the disconnection process, without changing the requested number.

[0059] The allocation unit 5c executes the disconnection process on the charging ports 4-1 to 4-6 in order of the charging port with the longest charging time, and if there are two or more units in use connected to the charging ports, it disconnects the unit in use with the highest unit number among the units in use. In this case, the charging port 4-1, which started charging at time t1, has the longest charging time, and the unit number 3 of the power supply unit 2-3 is the largest among the power supply units 2-1, 2-2, and 2-3. Therefore, the allocation unit 5c executes the disconnection process to disconnect the power supply unit 2-3 from the charging port 4-1, and allocates the power supply unit 2-3 to the charging port 4-5. At this point, the total number of units assigned is 10.

[0060] At time t6, when battery-equipped vehicle EV6 is connected to charging port 4-6, vehicle number calculation unit 5b sets the requested number to the rated number (=3) because battery-equipped vehicle EV6 is a dynamic control-compatible vehicle. Even at time t6, the number of available units is 0, which is less than the requested number, and battery-equipped vehicle EV6 is a dynamic control-compatible vehicle, as described above. Therefore, allocation unit 5c changes the requested number to "requested number - 1" and performs disconnection processing and allocation of the changed requested number (= requested number before change - 1).

[0061] The allocation unit 5c changes the requested number to two, disconnects the power supply unit 2-2 from the charging port 4-1, and then executes a disconnection process to disconnect the power supply unit 2-6 from the charging port 4-2. The allocation unit 5c executes the disconnection process and assigns the power supply units 2-2 and 2-6 to the charging port 4-6. At this point, the total number of assigned units is 10.

[0062] As shown in the second embodiment, even when dynamic control incompatible vehicles and dynamic control compatible vehicles are mixed, no allocation wait occurs at each of the charging ports 4-1 to 4-6 in the charging device 1. As a result, the operation rate of the charging ports 4-1 to 4-6 can be improved.

[0063] Although the embodiment of the charging device according to the present invention has been described above, the present invention is not limited to the above embodiment.

[0064] For example, the charging device of the present invention can be configured to include C (C is an integer greater than or equal to 2) charging ports, U (U is an integer greater than or equal to C) power supply units, a switching unit that switches the connection mode between the charging ports and the power supply units, and a control unit.

[0065] The control unit of the present invention may include an information and communication unit that acquires vehicle information from a battery-equipped vehicle connected to the charging port, a number calculation unit that calculates the required number of power supply units based on the vehicle information, and an allocation unit that controls the switching unit to allocate the requested number of power supply units to the charging ports.

[0066] The information and communication unit of the present invention acquires, as vehicle information, information regarding whether a battery-equipped vehicle is a dynamic control-compatible vehicle or a dynamic control-incompatible vehicle, and the number calculation unit of the present invention sets the requested number to the minimum number of vehicles that can be allocated in the case of a vehicle that is not dynamic control-compatible, while setting the requested number to a number greater than the minimum number in the case of a dynamic control-compatible vehicle, so that the configuration of the control unit can be appropriately changed.

[0067] The power supply unit of the present invention can be modified as appropriate as long as it outputs DC current. For example, when DC power is input to the charging device of the present invention, the power supply unit only needs to include at least a DC / DC converter.

[0068] The charging device of the present invention may have a discharging function for discharging the battery mounted vehicle. [Explanation of symbols]

[0069] 1 Charging device 2 Power supply section 2-1~2-10 Power supply unit 3 Switching section 4 Charging port 4-1~4-6 Charging port 5. Control section 5a Information and Communication Department 5b Number Calculation Section 5c Allocation Department 5d Power control section

Claims

1. A plurality of charging ports configured to be connectable to a vehicle equipped with a storage battery; A plurality of power supply units that output direct current; A switching unit that switches a connection state between the plurality of power supply units and the plurality of charging ports; A control unit that controls the switching unit, A charging device having a dynamic control function, The control unit is an information communication unit that acquires vehicle information from the storage battery-equipped vehicle connected to the charging port; a number calculation unit that calculates a required number of the power supply units based on the vehicle information; an allocation unit that controls the switching unit to allocate the requested number of power supply units to the charging ports; Equipped with The information communication unit includes: As the vehicle information, information regarding whether the storage battery-equipped vehicle is a dynamic control compatible vehicle or a dynamic control incompatible vehicle is acquired; The number calculation unit, In the case of the dynamic control non-compatible vehicles, the requested number is set to the minimum number of vehicles that can be allocated, whereas in the case of the dynamic control compatible vehicles, the requested number is set to a number greater than the minimum number. A charging device characterized by:

2. The plurality of charging ports are C charging ports (C is an integer equal to or greater than 2), the plurality of power supply units are U power supply units (U is an integer equal to or greater than C); The number calculation unit, The minimum number of the dynamic control non-compliant vehicles is a value calculated by U÷C, rounded down to the nearest whole number, The required number in the case of the dynamic control-compatible vehicle is a rated number, which is the number of vehicles for which the current output from the charging port is a rated current, and the rated number is a value obtained by dividing the rated current value of the charging port by the rated current value of the power supply unit, and rounding up the decimal point of the value.

2. The charging device according to claim 1 .

3. When the number of available units, which are the power supply units that are not connected to any of the plurality of charging ports among the plurality of power supply units, is smaller than the requested number, The allocation unit, In the case of the vehicle that does not support dynamic control, a disconnection process is performed to disconnect a usage unit, which is the power supply unit connected to any one of the plurality of charging ports, from the charging port, and allocate the requested number of vehicles. In the case of the dynamic control-compatible vehicle, the disconnection process is performed, and a number of vehicles less than the requested number is allocated.

3. The charging device according to claim 1 or 2.

4. The allocation unit, The disconnection process is performed in order from the charging port having the longest charging time among the plurality of charging ports, and if the allocation is not completed, the disconnection process is performed again in the order.

4. The charging device according to claim 3.

5. The allocation unit, When the number of the usage units connected to the charging port is greater than the minimum number, one or more of the usage units are disconnected in the disconnection process, and when the number of the usage units connected to the charging port is equal to or less than the minimum number, the usage units are not disconnected.

5. The charging device according to claim 3 or 4.

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