Charge management device for predetermined facility

Abstract

To achieve adjustment of power consumed by the operation of a predetermined facility and power required for charging performed in the predetermined facility.SOLUTION: A charging management device for a predetermined facility is attached with a parking space for charging in which chargers are installed which charge batteries mounted on vehicles. The charging management device acquires the operating time of the predetermined facility, inhibits charging with the chargers in the parking space for charging during the operating time of the predetermined facility, and permits charging with the chargers in the parking space for charging using predetermined power outside the operating time of the predetermined facility.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a charging management device for a predetermined facility, and more particularly to a charging management device for a predetermined facility provided with a charging parking space where a charging device for charging an in-vehicle battery is installed.

Background Art

[0002] Conventionally, as a charging management device for this type of predetermined facility, there has been proposed one that controls the power supplied to a charging means according to at least one of the power consumption of an electrical device, the charging state of a storage battery, and the time-zone power usage fee information of a power source (see, for example, Patent Document 1). Such control enables anyone to easily install an electrical outlet at a location where a charging means is required without the need for large-scale electrical work, and also suppresses an increase in the cost of electrical work and the basic fee of the electricity usage fee related to the contract power capacity.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in a predetermined facility having the above-described charging management device, generally, the charging equipment is also used within the operating time (business hours) of the predetermined facility. For this reason, it is necessary to contract with an electric power company for power exceeding the sum of the power required for the operation of the predetermined facility and the power required for charging by the charging equipment.

[0005] The charging management device for a predetermined facility of the present disclosure has a main object of adjusting the power for the operation of the predetermined facility and the power required for charging by the charging equipment.

Means for Solving the Problems

[0006] The charging management device for a predetermined facility of the present disclosure has adopted the following means to achieve the above main object.

[0007] The charging management device for a first predetermined facility of the present disclosure is a charging management device for a predetermined facility provided with a charging parking space where a charging device for charging a vehicle-mounted battery is installed, acquires the operating time of the predetermined facility, prohibits charging by the charging device in the charging parking space during the operating time of the predetermined facility, and permits charging by the charging device in the charging parking space using a predetermined power outside the operating time of the predetermined facility, characterized in that.

[0008] The first predetermined facility of the present disclosure is provided with a charging parking space where a charging device for charging a vehicle-mounted battery is installed. In the charging management device for the predetermined facility, the operating time of the predetermined facility is acquired, charging by the charging device in the charging parking space is prohibited during the operating time of the predetermined facility, and charging by the charging device in the charging parking space using a predetermined power is permitted outside the operating time of the predetermined facility. That is, charging by the charging device in the charging parking space is permitted during the time when the predetermined facility is not operating. For this reason, it is only necessary to conclude a contract with an electric power company for the power required for the operation of the predetermined facility, and the contract power can be kept low. As a result, the adjustment between the power consumed by the operation of the predetermined facility and the power required for charging by the charging facility can be made more appropriate.

[0009] In the charging management device for the first predetermined facility of the present disclosure, it is also possible to acquire information regarding the weather and permit charging by the charging device in the charging parking space using the predetermined power when it is predicted that the predetermined facility will not operate based on the information regarding the weather. By doing so, it is possible to more appropriately permit charging by the charging device in the charging parking space in a facility whose operation depends on the weather.

[0010] The charging management device for a second predetermined facility of the present disclosure is A charging management device for a predetermined facility that includes a charging parking space equipped with a charging device for charging a vehicle-mounted battery, obtains the contract power and the used power of the predetermined facility, and prohibits charging by the charging device in the charging parking space when the differential power obtained by subtracting the used power from the contract power of the predetermined facility is less than a predetermined power, and permits charging by the charging device in the charging parking space using the predetermined power when the differential power is equal to or greater than the predetermined power. characterized in that.

[0011] The second predetermined facility of the present disclosure includes a charging parking space equipped with a charging device for charging a vehicle-mounted battery. In the charging management device of the predetermined facility, the contract power and the used power of the predetermined facility are obtained, and charging by the charging device in the charging parking space is prohibited when the differential power obtained by subtracting the used power from the contract power of the predetermined facility is less than a predetermined power, and charging by the charging device in the charging parking space using the predetermined power is permitted when the differential power is equal to or greater than the predetermined power. That is, charging by the charging device in the charging parking space is permitted when the differential power obtained by subtracting the used power from the contract power of the predetermined facility is equal to or greater than a predetermined power. Therefore, it is only necessary to contract with the power company for the used power of the predetermined facility, and the contract power can be kept low. As a result, the adjustment between the power consumed by the operation of the predetermined facility and the power required for charging by the charging facility can be made more appropriate.

[0012] In the charging management device of the second predetermined facility of the present disclosure, it may be configured to acquire the operating time of the predetermined facility and permit charging by the charging device in the charging parking space when it is during the non-operating time of the predetermined facility and the differential power is equal to or greater than the predetermined power. That is, regarding charging by the charging device in the charging parking space, charging is permitted when it is the time when the predetermined facility is not operating and the differential power obtained by subtracting the power consumption from the contract power of the predetermined facility is equal to or greater than the predetermined power. In this case, when the differential power is less than the predetermined power, it may be configured to permit charging by the charging device in the charging parking space using power within the range of the differential power. By doing so, charging by the charging device in the charging parking space using power within the range of the differential power can always be performed.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0014] Next, embodiments for implementing the present disclosure will be described. FIG. 1 is a configuration diagram showing an outline of the configuration of a predetermined facility 20 having a charge management device as an embodiment of the present disclosure. As shown in the figure, the predetermined facility 20 of the embodiment includes a facility electrical load 22, a parking lot 30, a power supply circuit 50, and an electronic control unit 60. The electronic control unit 60 corresponds to the charge management device of the embodiment.

[0015] The predetermined facility 20 is, for example, a facility such as a public facility, a commercial facility, a station, an airport, or a hotel, and corresponds to a facility having a chargeable parking space where a charging device for charging an in-vehicle battery is installed. The facility electrical load 22 corresponds to the electrical equipment used in the facility.

[0016] The parking lot 30 has a chargeable parking lot 32 and a general parking lot 36. A plurality of parking spaces 34 are arranged in the chargeable parking lot 32, and a charging device 35 for charging and discharging an in-vehicle battery is installed in each parking space 34. A plurality of parking spaces 38 are also arranged in the general parking lot 36.

[0017] The power supply circuit 50 is installed between the facility electrical load 22 and the chargeable parking lot 32 of the parking lot 30. The power supply circuit 50 is connected to the facility electrical load 22 by a power line 52 and is connected to each charging device 35 of the chargeable parking lot 32 by a power line 54. Further, the power supply circuit 50 is connected to an external power supply 10 such as a commercial power supply. The power supply circuit 50 adjusts the voltage of the power supplied from the external power supply 10 and supplies it to the facility electrical load 22 and the charging device 35.

[0018] The electronic control unit 60 is configured as a microcomputer centered around a CPU (not shown). The electronic control unit 60 inputs the voltage Vin from a voltage sensor (not shown) attached to the external power supply 10, the current Iin from a current sensor (not shown), the voltage Vout from a voltage sensor (not shown) attached to the facility electrical load 22, the current Iout from a current sensor (not shown), the voltage Vcd from a voltage sensor (not shown) attached to the power line 54 connected to each charging device 35 of the chargeable parking lot 32, the current Icd from a current sensor (not shown), and the like. Further, the electronic control unit 60 outputs control signals to each charging device 35 of the chargeable parking lot 32 and the like. Furthermore, the electronic control unit 60 outputs drive control signals to each relay (not shown) attached to each of the power lines 52, 54, 56 in the power supply circuit 50, drive control signals to each power conversion device (not shown) provided on each of the power lines 52, 54, 56 in the power supply circuit 50, and the like.

[0019] Examples of vehicles that can use the chargeable parking lot 32 in the parking lot 30 include, for example, the electric vehicle 120 illustrated in FIG. 2. The electric vehicle 120 includes a motor 122, an inverter 123, a battery 124, a charging circuit 138, a connector 139, and an electronic control unit 130.

[0020] The motor 122 is configured as, for example, a synchronous generator motor. The rotor of the motor 122 is connected to a drive shaft 125 that is connected to drive wheels 128a and 128b via a differential gear 126. The motor 122 is driven by converting the DC power from the battery 124 into three-phase AC power by the inverter 123 and applying the three-phase AC power by the inverter 123. The battery 124 is configured as a well-known lithium-ion secondary battery or nickel-metal hydride secondary battery.

[0021] The charging circuit 138 is connected to a power line with one end connected to the battery 124, and the other end is connected to a connector 139 for connecting to the charging device 35. The charging circuit 138 has a charging relay (not shown), and the charging relay can connect to and disconnect from the battery 124.

[0022] The electronic control unit 130 is configured as a microcomputer centered around a CPU (not shown). Signals from various sensors are input to the electronic control unit 130 via input ports. For example, the electronic control unit 130 receives an ignition signal from the ignition switch 142, a shift position SP from the shift position sensor 144 that detects the position of the shift lever 143, an accelerator opening Acc from the accelerator pedal position sensor 146 that detects the depression amount of the accelerator pedal 145, a brake position BP from the brake pedal position sensor 148 that detects the depression amount of the brake pedal 147, a vehicle speed V from the vehicle speed sensor 149, etc. In addition, the electronic control unit 130 receives a rotational position θ from a rotational position sensor (not shown) that detects the rotational position of the motor 122, a battery voltage Vb from a voltage sensor (not shown) attached to the output terminal of the battery 124, a battery current Ib from a current sensor (not shown) attached to the output terminal of the battery 124, a charge / discharge voltage Vchg from a voltage sensor attached to the charging circuit 138, a charge / discharge current Ichg from a current sensor attached to the charging circuit 138, etc.

[0023] The electronic control unit 130 outputs various control signals via the output ports. For example, the electronic control unit 130 outputs a display control signal to the display device 150, a communication control signal to the communication device 152, and an air conditioning control signal to the air conditioning device 154. Further, the electronic control unit 130 outputs a switching control signal for switching a switching element (not shown) to the inverter 123 for driving the motor 122, a drive control signal to a system main relay (not shown) attached near the battery 124, and a drive control signal to a charging relay (not shown) attached to the charging circuit 138. The electronic control unit 130 communicates with a navigation system 156 that displays various information and provides route guidance. A signal line 140 for communicating with the charging device 35 when the charging device 35 is connected to the electronic control unit 130 via the connector 139 is connected to the electronic control unit 130.

[0024] Next, the charging management process by the electronic control unit 60 that functions as a charging management device for the predetermined facility 20 configured in this way will be described. FIG. 3 is a flowchart showing an example of the charging management process executed by the electronic control unit 60. This process is repeatedly executed at predetermined time intervals (for example, every 1 minute, every 10 minutes, every 30 minutes, every 1 hour, etc.).

[0025] When the charging management process is executed, the electronic control unit 60 first acquires the operating time of the predetermined facility 20 (step S100). It is preferable to acquire the operating time of the predetermined facility 20 according to whether it is a weekday, a holiday, a festival day, or a specific day during the New Year holidays. Next, it is determined whether it is outside the operating time of the predetermined facility 20 (step S110). When it is determined that it is outside the operating time of the predetermined facility 20, charging of the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32 is permitted (step S120), and this process ends. On the other hand, when it is determined that it is not outside the operating time of the predetermined facility 20 (during the operating time), charging of the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32 is prohibited (step S130), and this process ends.

[0026] FIG. 4 is an explanatory diagram showing an example of the relationship between the operating hours of the predetermined facility 20 and the power required for charging by the charging device 35. As shown in the figure, the power consumption of the predetermined facility 20 is small from 7:00 to 19:00 during the operating hours, and the power consumption of the predetermined facility 20 is small from 0:00 to 7:00 and from 19:00 to 24:00 during the non-operating hours. During the non-operating hours, the differential power ΔW between the contract power Wc with the external power supply 10 of the predetermined facility 20 and the power consumption Wt of the predetermined facility 20 is larger than the power (charging required power) Wneed required for charging the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32. Therefore, even if the charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 is permitted during the non-operating hours, it will not exceed the contract power Wc.

[0027] In the charging management device of the predetermined facility 20 of the embodiment described above, the operating hours of the predetermined facility 20 are acquired, and when it is outside the operating hours of the predetermined facility 20, the charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 is permitted, and when it is not outside the operating hours of the predetermined facility 20, the charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 is prohibited. Thereby, it is possible to prevent exceeding the contract power Wc when the in-vehicle battery 124 is being charged by the charging device 35 of the chargeable parking lot 32. As a result, the adjustment between the power generated by the operation of the predetermined facility 20 and the power required for charging by the charging device 35 can be made more appropriate.

[0028] In the charging management device of the predetermined facility 20 of the embodiment, the operating hours of the predetermined facility 20 are acquired, and whether or not to permit the charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 is determined based on whether or not it is outside the operating hours of the predetermined facility 20. However, it is also possible to acquire the weather near the predetermined facility 20, predict whether or not the predetermined facility 20 will operate based on the acquired weather, prohibit the charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 when it is predicted that the predetermined facility 20 will operate, and permit the charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 when it is predicted that the predetermined facility 20 will not operate.

[0029] In the charging management device of the predetermined facility 20 of the embodiment, the operating time of the predetermined facility 20 is acquired, and whether to permit charging of the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32 is determined based on whether it is outside the operating time of the predetermined facility 20. However, it may be determined whether to permit charging of the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32 based on whether the differential power ΔW between the contract power Wc with the external power source 10 of the predetermined facility 20 and the power consumption Wt of the predetermined facility 20 is equal to or greater than the power required for charging the in-vehicle battery 124 (charging required power) Wneed by the charging device 35 in the chargeable parking lot 32. An example of the charging management process in this case is shown in FIG. 5.

[0030] In the charging management process of FIG. 5, the electronic control unit 60 first inputs the power consumption Wt used by the facility electrical load 22 of the predetermined facility 20 (step S200), and calculates the differential power ΔW between the contract power Wc with the external power source 10 of the predetermined facility 20 and the power consumption Wt of the predetermined facility 20 (step S210). Then, it is determined whether the differential power ΔW is equal to or greater than the power required for charging the in-vehicle battery 124 (charging required power) Wneed by the charging device 35 in the chargeable parking lot 32 (step S220). When it is determined that the differential power ΔW is equal to or greater than the charging required power Wneed, charging of the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32 is permitted (step S230), and this process ends. On the other hand, when it is determined that the differential power ΔW is less than the charging required power Wneed, charging of the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32 is prohibited (step S240), and this process ends. Even in such a modified example of the charging management process, it is possible to prevent exceeding the contract power Wc when charging the in-vehicle battery 124 by the charging device 35 in the chargeable parking lot 32, and the adjustment between the power due to the operation of the predetermined facility 20 and the power required for charging by the charging device 35 can be made more appropriate.

[0031] Also, when it is during the operating hours of the predetermined facility 20 and it is determined that the differential power ΔW is equal to or greater than the required charging power Wneed, charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 may be permitted. An example of the charging management process in this case is shown in FIG. 6. The charging management process of FIG. 6 is provided between step S220 and step S230 of the charging management process of FIG. 5 with a process of determining whether it is outside the operating hours of the predetermined facility 20. The charging management process of FIG. 6 inputs the power consumption Wt used by the facility electrical load 22 of the predetermined facility 20 (step S200), and calculates the differential power ΔW (step S210). Then, it determines whether the differential power ΔW is equal to or greater than the required charging power Wneed (step S220), and determines whether it is outside the operating hours of the predetermined facility 20 (step S225). When it is determined that the differential power ΔW is equal to or greater than the required charging power Wneed and it is outside the operating hours of the predetermined facility 20, charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 is permitted (step S230), and this process ends. On the other hand, when it is determined that the differential power ΔW is less than the required charging power Wneed or it is determined that it is within the operating hours of the predetermined facility 20, charging of the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32 is prohibited (step S240), and this process ends. By doing so, it is possible to more surely prevent exceeding the contract power Wc when charging the in-vehicle battery 124 by the charging device 35 of the chargeable parking lot 32, and the adjustment between the power generated by the operation of the predetermined facility 20 and the power required for charging by the charging device 35 can be made more appropriate.

[0032] In the charging management device of the predetermined facility 20 of the embodiment, an electric vehicle 120 that drives and travels by using the power from the battery 124 as a vehicle that can use the chargeable parking lot 32 of the parking lot 30 is assumed. However, any vehicle equipped with a chargeable battery may be used. For example, vehicles with various configurations such as hybrid vehicles equipped with an engine, a motor, and a battery, or fuel cell vehicles equipped with a fuel cell and a battery may be used.

[0033] The main elements of the embodiment and the main elements of the invention described in the section on means for solving the problems In the embodiment, the battery 124 corresponds to a "battery", the charging device 35 corresponds to a "charging device", the parking space 34 corresponds to a "charging parking space", the predetermined facility 20 corresponds to a "predetermined facility", and the electronic control unit 60 corresponds to a "charging management device".

[0034] Note that the correspondence between the main elements of the embodiment and the main elements of the invention described in the Means for Solving the Problem column does not limit the elements of the invention described in the Means for Solving the Problem column, since the embodiment is an example for specifically explaining the form for implementing the invention described in the Means for Solving the Problem column. In other words, the interpretation of the invention described in the Means for Solving the Problem column should be made based on the description in that column, and the embodiment is merely a specific example of the invention described in the Means for Solving the Problem column.

[0035] The present disclosure has been described above using embodiments, but the present disclosure is not limited to these embodiments in any way, and it goes without saying that the present disclosure can be embodied in various forms without departing from the gist of the present disclosure. [Industrial Applicability]

[0036] The present disclosure can be used in the manufacturing industry of charging management devices for specific facilities. [Explanation of symbols]

[0037] 10 external power supply, 20 designated facility, 30 parking lot, 32 charging parking lot, 34 charging parking space, 35 charging equipment, 36 general parking lot, 38 parking space, 50 power supply circuit, 52, 54, 56 power lines, 60 electronic control unit.

Claims

1. A charging management device for a predetermined facility that has a charging parking space equipped with a charging device for charging a vehicle-mounted battery, acquiring the operating time of the predetermined facility, prohibiting charging by the charging device in the charging parking space during the operating time of the predetermined facility, and permitting charging by the charging device in the charging parking space using a predetermined power outside the operating time of the predetermined facility. A charging management device characterized by the above.

2. The charging management device according to Claim 1, acquiring information on the weather, and permitting charging by the charging device in the charging parking space using the predetermined power when it is predicted that the predetermined facility will not operate based on the information on the weather. A charging management device.

3. A charging management device for a predetermined facility that has a charging parking space equipped with a charging device for charging a vehicle-mounted battery, acquiring the contract power and the used power of the predetermined facility, prohibiting charging by the charging device in the charging parking space when the difference power obtained by subtracting the used power from the contract power of the predetermined facility is less than the predetermined power, and permitting charging by the charging device in the charging parking space using the predetermined power when the difference power is equal to or greater than the predetermined power. A charging management device characterized by the above.

4. The charging management device according to Claim 3, acquiring the operating time of the predetermined facility, and permitting charging by the charging device in the charging parking space when it is during the non-operating time of the predetermined facility and the difference power is equal to or greater than the predetermined power. A charging management device.

5. The charging management device according to Claim 4, permitting charging by the charging device in the charging parking space using power within the range of the difference power when the difference power is less than the predetermined power. A charging management device.

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