JP2017028787A - Vehicle power management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively use the power of a battery held in an electric vehicle during parking.SOLUTION: A vehicle power management device includes: multiple vehicle connection parts (13) electrically connectable to vehicles (10); a power reception part (21) for receiving the power of a battery from a vehicle connected to the vehicle connection part, generating power to operate loads (26, 27) on the basis of the received power of the battery, and outputting the power to the loads; a charge power output part (5) capable of outputting charge power for charging the battery to the vehicle; a power reception object determination part (31) for determining at least one of the vehicles connected to the vehicle connection parts as a power reception object vehicle; a power reception indication part (31) for indicating the power reception part to receive the power of the battery in a specified power reception period from the power reception object vehicle; and a charge indication part (31) for indicating the charge power output part to output charge power to the power reception object vehicle after the termination of the power reception period.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle power management apparatus that manages the power of a battery of a vehicle.

  Various electric vehicles (for example, an electric vehicle, a plug-in hybrid vehicle, etc.) including an electric motor and a battery and configured to be able to charge the battery with charging power supplied from the outside are commercially available. Various charging systems for charging the batteries of these electric vehicles have also been proposed (see, for example, Patent Document 1).

JP 2010-178450 A

  As electric vehicles become more widespread, for example, it is expected that a situation in which a plurality of electric vehicles are parked on a daily basis in parking lots of public facilities, commercial facilities, business establishments, and other various facilities will occur.

Therefore, when the electric vehicle is parked in the parking lot, it is convenient if the power of the battery mounted on the electric vehicle can be effectively used.
The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to effectively use the electric power of a battery included in a parked electric vehicle.

A vehicle power management apparatus according to one aspect of the present invention includes a plurality of vehicle connection units, a power reception unit, a charge power output unit, a power reception target determination unit, a power reception instruction unit, and a charge instruction unit.
The vehicle connection unit is electrically connectable to a vehicle having a battery, and is configured to be able to send and receive electric power from the outside to the vehicle battery while being electrically connected to the vehicle. ing. The power receiving unit receives power of the battery from the vehicle electrically connected to the vehicle connection unit via the vehicle connection unit, and generates power for operating the load based on the received battery power. And output to the load. The charging power output unit is configured to be able to output charging power for charging the battery to the vehicle connected to the vehicle connection unit via the vehicle connection unit. The power receiving target determining unit determines at least one of the vehicles connected to the vehicle connecting unit as a power receiving target vehicle that is a target vehicle that receives power from the battery. The power reception instruction unit instructs the power reception unit to receive the power of the battery from the power reception target vehicle determined by the power reception target determination unit during a specific power reception period. The charging instruction unit instructs the charging power output unit to output charging power to the power receiving target vehicle after the end of the power receiving period.

  According to the vehicle power management device configured as described above, the power of the battery of the vehicle can be used as power for operation of a load outside the vehicle. In addition, for the vehicle in which the battery power is received on the load side, charging power is supplied after the power reception on the load side (that is, after the end of the power reception period) to charge the battery. Therefore, as a whole, it is possible to effectively use the power of the vehicle battery while suppressing a decrease in the remaining amount of the vehicle battery.

  The vehicle power management apparatus configured as described above may further include a remaining amount information acquisition unit. The remaining amount information acquisition unit acquires remaining amount information indicating the remaining amount of electric power charged in the battery of the vehicle from the vehicle connected to the vehicle connection unit. In the case where the remaining amount information acquisition unit is provided, the power reception target determination unit determines the remaining amount of the battery among the vehicles connected to the vehicle connection unit based on the remaining amount information acquired by the remaining amount information acquisition unit. May be determined as a power receiving target vehicle.

  According to the vehicle power management apparatus having such a configuration, by appropriately setting the remaining amount condition, it is possible to prevent taking out power from a battery with a very small remaining amount, and a vehicle with a relatively large remaining amount can be obtained. It can be determined as a power receiving target vehicle. By receiving power from a battery with a sufficient remaining capacity, it is possible to efficiently receive power from the battery and charge the battery after receiving power as a whole.

  Moreover, the vehicle power management apparatus having the above-described configuration may include a release time information acquisition unit. The release time information acquisition unit acquires release time information indicating a time at which the connection with the vehicle connection unit is released from the vehicle connected to the vehicle connection unit. And when this cancellation | release time information acquisition part is provided, a power receiving object determination part is based on the cancellation | release time information acquired by the cancellation | release time information acquisition part, a vehicle connection part among the vehicles connected to a vehicle connection part, and A vehicle whose time at which the connection is released is a time when a predetermined time or more has elapsed from the end of the power reception period may be determined as a power reception target vehicle.

  According to the vehicle power management device having such a configuration, after the power reception period ends, charging power is supplied to the vehicle in which battery power is output to the load side for use in load operation with sufficient margin to charge the battery. Can do.

It is explanatory drawing which shows the whole structure of the power supply / reception system of 1st Embodiment. It is explanatory drawing which shows the electrical structure of the power supply / reception system of 1st Embodiment. It is explanatory drawing which shows schematic structure of the power supply / reception stand of 1st Embodiment. It is explanatory drawing which shows schematic structure of the vehicle of 1st Embodiment. It is explanatory drawing which shows schematic structure of the portable terminal of 1st Embodiment. It is explanatory drawing which shows a user management table. It is a flowchart of exit / exit management processing. It is a flowchart of a power reception process. It is a flowchart of an individual power supply process. It is a flowchart of a vehicle information management process. It is a flowchart of a normal charging process. It is a flowchart of a power reception corresponding | compatible process. It is a flowchart of the electric power feeding corresponding | compatible process. It is a flowchart of the power reception process of 2nd Embodiment.

Embodiments to which the present invention is applied will be described below with reference to the drawings.
[First Embodiment]
(1) Overview of Power Supply / Reception System As shown in FIG. 1, the power supply / reception system of the first embodiment mainly includes a building 1, a parking lot 3, a power supply / reception switching device 5, and a vehicle 10. .

  The building 1 is one of the buildings in the company site in this embodiment. In the building 1, as will be described later, a plurality of electric loads that operate by receiving electric power are provided. In the building 1, each electric load is normally supplied with AC power received from an external commercial AC system 100 (not shown in FIG. 1; see FIG. 2), and each electric load operates with the AC power. To do. However, in the present embodiment, it is configured to be able to receive electric power from the vehicle 10 parked in the parking lot 3 and operate each electric load in the building 1 by the received electric power as necessary. .

  The parking lot 3 is provided with a plurality of parking sections where the vehicle 10 can be parked, and is configured such that one vehicle 10 can be parked for each parking section. A vehicle 10 can enter and leave the parking lot 3 through a vehicle entrance 8. FIG. 1 illustrates a state in which the vehicle 10 is parked in at least the parking sections P001, P003, P004, P081, P082, P083, and P085 among the plurality of parking sections P001, P002,.

  In the present embodiment, the vehicle 10 includes a battery 40 (not shown in FIG. 1; see FIG. 4), and supplies the battery 40 with electric power charged to the outside or charges the battery 40 from the outside. This is an electric vehicle that can be configured. However, vehicles that can be parked in the parking lot 3 are not limited to electric vehicles, and any type of vehicle can be parked in the parking lot 3.

  A power supply / reception stand 7 is installed in each parking section in the parking lot 3. The power supply / reception stand 7 is a power supply / reception facility that can receive power from the battery 40 of the vehicle 10 or supply charging power to the battery 40 of the vehicle 10.

  Electric power (charging power) for charging the battery 40 of the vehicle 10 is supplied from the power supply / reception switching device 5 to the power supply / reception stand 7. Charging power can be supplied to the vehicle 10 by connecting the connector 13 of the connection cable 12 provided in the relay device 11 of the power supply / reception stand 7 to the vehicle 10.

  In the present embodiment, power can be supplied from the battery 40 of the vehicle 10 to the building 1. When a predetermined power receiving execution condition is established in the building 1 with the connector 13 of the connection cable 12 connected to the vehicle 10, the state of the battery 40 at that time, the schedule of the user of the vehicle 10, and the like In some cases, power is extracted from the battery 40. In that case, the electric power of the battery 40 of the vehicle 10 is supplied into the building 1 via the power supply / reception stand 7 and the power supply / reception switching device 5. However, when electric power (battery electric power) charged (accumulated) in the battery 40 is taken out from the vehicle 10 and received by the building 1, the power supply / reception switching device 5 returns to the vehicle 10 again as described later. Electric power is supplied and the battery 40 is charged.

  The relay device 11 of the power supply / reception stand 7 is provided with an input / output unit 14. When the user of the vehicle 10 leaves the office, he or she parks the vehicle 10 in the parking area, and then holds the portable terminal 60 (see FIG. 5) over the input / output unit 14 of the power supply / reception stand 7 in the parking area. It can be performed. On the other hand, when leaving the office, the user can register to leave the office by holding the portable terminal 60 again over the input / output unit 14. In addition, when the portable terminal 60 is held over the input / output unit 14, user information synchronization processing is performed between the portable terminal 60 and the system control device 30 (see FIG. 2) in the building 1. This user information synchronization process will be described later.

  The power supply / reception switching device 5 generates charging power for the battery 40 of the vehicle 10 based on the AC power of the external commercial AC system 100 and outputs it to the vehicle 10 side (specifically, output to the power supply / reception stand 7). Has an output function. Further, the power supply / reception switching device 5 has a power reception relay function for receiving power in the building 1 by outputting the battery power of the vehicle 10 into the building 1.

  The operation of each function in the power supply / reception switching device 5 is controlled by the system control device 30 in the building 1. The system control device 30 activates the power reception relay function for the power supply / reception switching device 5 to receive battery power from the vehicle 10 as necessary, or conversely activates the charging power output function to supply the battery to the vehicle 10. For example, 40 charging power is supplied.

(2) Description of Building 1 Next, a specific configuration of the building 1 will be described with reference to FIG. As shown in FIG. 2, the building 1 is provided with a power distribution device 21, an AC 100 V load group 26, an AC 200 V load group 27, and a system control device 30. Then, power is input from the commercial AC system 100 to the power distribution device 21.

  In the present embodiment, the AC power input from the commercial AC system 100 to the power supply / reception system is a single-phase 200V AC and a three-phase 200V AC. Among these, the single-phase 200V AC is input to at least the power distribution device 21 in the building 1, and the three-phase 200V AC is input to at least the power supply / reception switching device 5.

  Moreover, the electricity rate of the alternating current power input from the commercial alternating current system 100 changes with time zones. In the present embodiment, for example, in the peak time zone from 10:00 am to 2:00 pm, the electricity rate is highest during the day. On the other hand, for example, during the night time period from 7:00 pm to 6:00 am the next day, the electricity bill is the cheapest in the day.

  The AC 100V load group 26 is a generic name for a plurality of electric loads configured to be operable with AC 100V AC power as a power source. As an electrical load which comprises AC100V load group 26, lighting equipment, various office equipment, information processor, its peripheral equipment, etc. are mentioned, for example.

  The AC200V load group 27 is a general term for a plurality of electric loads configured to be operable with AC 200V AC power as a power source. Examples of the electric load that constitutes the AC 200V load group 27 include an air conditioner, a refrigerator / freezer, and a heater.

  The power distribution device 21 includes a system power distribution circuit 22, a DC / AC converter 23, and a power distribution circuit 24. The system distribution circuit 22 receives a single-phase 200V alternating current from the commercial alternating-current system 100, extracts AC 100 V AC power and AC 200 V alternating-current power from the single-phase 200 V alternating current, and outputs the AC power to the distribution circuit 24.

  In this embodiment, since the AC 100V load group 26 and the AC 200V load group 27 are provided as the electric loads that consume power as described above, the system distribution circuit 22 outputs each AC power of AC 100V and AC 200V. However, for example, when only the AC 100V load group 26 is provided as an electrical load, the system distribution circuit 22 may be configured to output only the power of the AC 100. That is, the grid distribution circuit 22 only needs to be configured to be able to output AC power according to the electric load to be supplied with power.

  When the DC / AC converter 23 receives battery power from the vehicle 10 parked in the parking lot 3 via the power supply / reception switching device 5, the DC / AC converter 23 converts the received battery power into AC power of AC 100V and AV 200V, Output to the power distribution circuit 24. The DC / AC converter 23 does not always operate, but rather normally stops operating. Then, when it is necessary to receive battery power from the vehicle 10, it operates according to a command from the system control device 30.

  When there are a plurality of vehicles 10 that are battery power receiving targets, the DC / AC converter 23 may mix battery power from the plurality of vehicles 10 and convert it to AC power. The battery power may be individually converted into AC power, and the converted AC power may be mixed and output to the power distribution circuit 24. The specific configuration of the DC / AC converter 23 is not particularly limited as long as the battery power can be converted into AC power required by each electric load to be supplied with power and output.

  AC power is input to the power distribution circuit 24 from the system power distribution circuit 22, and AC power is also input from the DC / AC converter 23 during operation of the DC / AC converter 23. The distribution circuit 24 is also referred to as AC power input from the grid distribution circuit 22 (hereinafter also referred to as “system side AC power”) and AC power input from the DC / AC converter 23 (hereinafter also referred to as “vehicle side AC power”). ) Is output to each of the load groups 26 and 27. When outputting both system-side AC power and vehicle-side AC power, both are appropriately mixed and output.

  The output of AC power from the power distribution circuit 24 to each of the load groups 26 and 27 is controlled by the system control device 30. When the system control device 30 outputs vehicle-side AC power to the load groups 26 and 27, the power (demand power) required by the load groups 26 and 27, the system-side AC power that can be output, and the output that can be output. Based on the vehicle side AC power, the cost of the system side AC power (for example, electricity charges), etc., the ratio of the system side AC power and the vehicle side AC power to be output to each of the load groups 26 and 27 is determined. Output AC power. Various methods for determining the ratio can be considered. When all the load groups 26 and 27 can be operated only by the vehicle side AC power, the output of the system side AC power is stopped and only the vehicle side AC power is output to the load groups 26 and 27. Also good.

  Note that power sensors 28 and 29 are provided in the supply path of AC power from the power distribution circuit 24 to the load groups 26 and 27, respectively. Each of the power sensors 28 and 29 detects the actual power supplied to the corresponding load group, and outputs a signal indicating the detection result to the system control device 30. Therefore, the system control device 30 knows how much power is actually consumed in each load group 26, 27 based on the detection signals from the power sensors 28, 29, that is, the power demand. Can do.

  The system control device 30 includes a system control unit 31 and a system storage unit 32. The system control device 30 is connected to each relay device 11 in the parking lot 3 by a communication cable, whereby the system control device 30 can send and receive data to and from each relay device 11, and the relay device 11. The data can be transmitted to and received from the vehicle 10 via.

  The system storage unit 32 is a storage device (for example, a hard disk or a semiconductor memory) that can store and read various data. The system storage unit 32 stores various programs (software) and data. The programs stored in the system storage unit 32 include attendance management software and system power control software. The data stored in the system storage unit 32 includes a user management table (see FIG. 6).

  As shown in FIG. 6, the user management table is a database in which various information related to the vehicle 10 parked in the parking area and the user for each parking area of the parking lot 3 is registered. As shown in FIG. 6, the various information registered in the user management table includes at least a user name, scheduled delivery time, cable connection information, external power supply availability information, vehicle information, battery information, and power reception related information.

  The user name is information that can identify the user of the parked vehicle 10. What is specifically registered as the user name can be determined as appropriate. For example, it may be information directly indicating the name of the user, or may be information unique to the user assigned to each user, such as a specific number or symbol. As will be described later, the user name is acquired mainly from the portable terminal 60 and registered in the user management table.

  The scheduled delivery time is the time when the parked vehicle 10 is scheduled to leave. The scheduled delivery time is registered in the user management table mainly based on the user schedule acquired from the portable terminal 60 as described later. In addition, in FIG. 6, although the example in which the scheduled delivery time is registered by the hour unit is shown, it can also be registered by the hour and minute unit.

  The cable connection information is information indicating whether or not the connector 13 of the power supply / reception stand 7 is connected to the parked vehicle 10. The cable connection information is mainly acquired from the relay device 11 and registered in the user management table as will be described later.

  The external power supply availability information is information indicating whether or not battery power may be taken out from the parked vehicle 10 (that is, whether or not battery power is allowed to be taken out). The external power supply availability information is acquired mainly from the vehicle 10 and registered in the user management table as will be described later.

  The vehicle information is a generic name for a plurality of types of information for specifying the type of the vehicle 10 parked in the parking section and the user. In this embodiment, the vehicle name, model, and number are included as vehicle information. The vehicle information may include the rated capacity Bc0 [Ah] of the battery 40 of the vehicle 10. The vehicle information is mainly acquired from the vehicle 10 and registered in the user management table as will be described later.

  The battery information is a generic name for a plurality of types of information indicating the performance and state of the battery 40 of the vehicle 10. In the present embodiment, as the battery information, the current capacity of the battery 40 (hereinafter also referred to as “current capacity”) Bc [Ah], the remaining capacity of the battery 40 (hereinafter also referred to as “battery remaining capacity”) Br [Ah], SOC (State of Charge; charge rate) [%], SOH (State of Health; soundness), SOP (State of Power; charge / discharge allowable power) [W], voltage of the battery 40 (hereinafter also referred to as “battery voltage”) Vb [V] and the rated capacity Bc0 [Ah] of the battery 40 are included. The battery information is acquired mainly from the vehicle 10 and registered in the user management table as will be described later.

  The power reception related information is a general term for a plurality of types of information calculated and updated based on a plurality of types of information for determining whether or not to receive the battery power from the vehicle 10 and the power reception result. In the present embodiment, as the power reception related information, the remaining amount lower limit Ur [Ah], the SOC lower limit Us [%], the charging power unit price Eb [yen / Wh], the power selling price Es [yen / Wh], and the current power receiving amount G0 [ Wh], current power supply amount K0 [Wh], cumulative power reception amount Gx [Wh], cumulative power supply amount Kx [Wh], cumulative power reception count J [times], and the like.

  The remaining amount lower limit Ur is a lower limit value of the battery remaining amount Br that should be left at least in the battery 40. Supply of battery power from the battery 40 to the building 1 is allowed as long as the remaining battery level Br is equal to or higher than the remaining battery level lower limit Ur, but when the remaining battery level Br decreases to the remaining battery level lower limit Ur, external supply of battery power is It is forcibly stopped on the vehicle 10 side.

  The SOC lower limit Us is a lower limit value of the SOC of the battery 40. Supply of battery power from the battery 40 to the building 1 is allowed as long as the SOC of the battery 40 is equal to or higher than the SOC lower limit Us, but when the SOC decreases to the SOC lower limit Us, external supply of battery power is forced on the vehicle 10 side. Is stopped.

The charging power unit price Eb is a unit price of power charged in the battery 40. This charging power unit price Eb is calculated at any time in the vehicle 10 as described later, and is updated to the latest value.
The power selling price Es is information that can be a criterion for determining whether or not to permit external supply when supplying battery power from the vehicle 10 to the outside. This power selling price Es is not used in the first embodiment, but is used in a second embodiment described later. Therefore, the power selling price Es will be specifically described in the second embodiment.

  In the following description, the remaining amount lower limit Ur, the SOC lower limit Us, the charging power unit price Eb, and the power selling price Es are also collectively referred to as “external power feeding related information”. The external power feeding related information is mainly acquired from the vehicle 10 and registered in the user management table.

  The current power reception amount G0 is the amount of power received during a certain period when battery power is received from the vehicle 10 to the building 1 by the power management function of the system control unit 31 for a certain period. Each time the battery power of the vehicle 10 is received in the building 1, the system control device 30 measures the amount of power (the amount of power received) received from the vehicle 10. Then, the measured power reception amount is updated and stored as the current power reception amount G0.

  The power supply amount K0 this time is the power supplied to the vehicle 10 during a certain period when the charging power of the battery 40 is fed from the power supply / reception switching device 5 to the vehicle 10 by the power management function of the system control unit 31 for a certain period. Amount. The charging power supply from the power supply / reception switching device 5 to the vehicle 10 is basically performed at a specific timing after the power reception is completed each time the battery power of the vehicle 10 is received in the building 1. Each time charging power is supplied to the vehicle 10, the system control device 30 measures the amount of power supplied to the vehicle 10 (power supply amount). Then, the measured power supply amount is updated and stored as the current power supply amount K0.

  The accumulated power reception amount Gx is a cumulative value of battery power received from the user's vehicle 10 to the building 1 in the past for each user. Each time power is received from the vehicle 10 to the building 1 and the current power reception amount G0 is measured, the system control apparatus 30 calculates the cumulative power reception amount Gx by cumulatively adding the current power reception amount G0.

  The cumulative power supply amount Kx is a cumulative value of charging power that is supplied from the power supply / reception switching device 5 to the user's vehicle 10 in the past for each user. The system control device 30 calculates the cumulative power supply amount Kx by cumulatively adding the current power supply amount K0 each time power is supplied from the power supply / reception switching device 5 to the vehicle 10 and the current power supply amount K0 is measured. To do.

  The cumulative power reception count J is the total number of times of power reception from the user's vehicle 10 to the building 1 in the past for each user. The system control device 30 cumulatively adds the cumulative number of times of power reception J every time power is received from the vehicle 10 to the building 1 and the current power reception amount G0 is measured.

  Returning to FIG. 2, the description of the system control device 30 in the building 1 will be continued. The system control unit 31 in the system control device 30 implements various functions by executing various programs stored in the system storage unit 32. For example, when the attendance management software is executed, the attendance management function is realized. Further, when the system power control software is executed, a power management function is realized.

  The attendance management function is a function for managing the attendance of an employee who has parked the vehicle 10 in the parking lot 3 and memorizing the attendance time and the exit time of the employee. When an employee who parks the vehicle 10 in the parking lot 3 holds the portable terminal 60 of the employee over the input / output unit 14 of the relay device 11 in the parking area, the non-operation between the portable terminal 60 and the input / output unit 14 occurs. The contact near field communication is started, and data communication is possible between the system control unit 31 and the portable terminal 60 via the relay device 11.

  And the system control part 31 acquires user information from the portable terminal 60 while acquiring the zone information which shows the parking zone where the portable terminal 60 was held from the relay apparatus 11. FIG. The user information is information specific to the user of the mobile terminal 60, and includes at least a user name (that is, an employee name) and a user schedule in this embodiment.

  The user schedule is information indicating the schedule of the user. The user schedule includes at least a scheduled leaving time that is a time at which the user is scheduled to leave the day. The system control unit 31 registers the scheduled leaving time or a time after a predetermined time from the scheduled leaving time in the user management table as a scheduled leaving time at which the user leaves the vehicle 10 from the parking lot 3.

  The user schedule can be appropriately managed (input operation) by the user on the portable terminal 60. Further, the system control device 30 side can also manage by an input operation via an information processing device (not shown). And the user schedule memorize | stored in the portable terminal 60 and the user schedule memorize | stored in the system memory | storage part 32 are synchronized at a predetermined timing, and always the newest user schedule is always both at the synchronization timing. Shared. The synchronization timing of the user schedule can be determined as appropriate. For example, it may be when the portable terminal 60 is held over the relay device 11, and whenever one of the schedules is updated, the updated information is transmitted from one updated to the other, and the updated information is transmitted to the other side. You may make it update.

  In the attendance management function, when the system control unit 31 acquires the user information from the portable terminal 60, the system control unit 31 indicates that the user has left the company or left the office based on the time at which the user was acquired and the time (the time at which the user left the company or the time of leaving the office). sign up. The time to enter the office and the time to leave the office may be the time when the portable terminal 60 is held over, or the time to enter the office is considered in consideration of the round-trip time from the parking lot 3 to the user's department in the building 1. The time at which a predetermined time has elapsed from the time of departure may be set, and conversely, the leaving time may be set to a time that is a predetermined time before the time of holding over.

  Further, in the power management function, when the system control unit 31 acquires the partition information from the relay device 11 over which the portable terminal 60 is held and the user information from the portable terminal 60, the acquired information in the user management table is acquired. The fact that the user of the mobile terminal 60 parked the vehicle 10 is registered as information on the parking section indicated by the section information.

  Specifically, the user name acquired from the mobile terminal 60 is registered as the user name of the corresponding parking area, and the scheduled leaving time included in the user schedule acquired from the mobile terminal 60 or after a predetermined time has elapsed Register the time as the scheduled delivery time.

  Furthermore, the system control unit 31 detects whether or not the connector 13 of the relay device 11 is connected to the vehicle 10 and registers the detection result as cable connection information in the user management table.

  Then, the system control unit 31 tries to receive power (that is, borrow power) from the vehicle 10 parked in the parking lot 3 when a predetermined power reception execution condition is satisfied. The power reception execution condition can be determined as appropriate. For example, the power demand in the building 1 exceeds a certain level, the power demand is likely to reach a certain level or higher, and the commercial AC grid 100 has a high power bill. (For example, the peak time zone described above) may be set as a power reception execution condition.

  When the power reception execution condition is satisfied, the system control unit 31 receives power (borrowing) from the parked vehicle 10 and then supplies power to the vehicle 10 (returning power). This will be specifically described later with reference to FIGS.

(3) Description of power supply / reception switching device Next, a specific configuration of the power supply / reception switching device 5 will be described with reference to FIG. The power supply / reception switching device 5 includes an AC / DC converter 16, a system disconnection switch 15, a plurality of power supply path switches 17, and a plurality of power reception path switches 18.

  The system disconnection switch 15 is a switch for conducting / interrupting the supply path of AC power (three-phase 200 V in this embodiment) from the commercial AC system 100 to the AC / DC converter 16. The system control device 30 controls on / off of the system disconnection switch 15.

  The AC / DC converter 16 converts the AC power input from the commercial AC system 100 via the system disconnection switch 15 when the system disconnection switch 15 is turned on into DC power having a predetermined voltage value and outputs it. In the present embodiment, the battery voltage Vb of the vehicle 10 is converted into DC power having a rated value (for example, DC 400V) or a voltage value slightly higher than the rated value.

  The power supply path switch 17 is individually provided for each parking section of the parking lot 3. One end of each power supply path switch 17 is connected to the AC / DC converter 16, and the other end is connected to each relay device 11 of each parking section. When the power supply path switch 17 is turned on, the DC power generated by the AC / DC converter 16 is output to the relay device 11 connected to the power supply path switch 17 that is turned on. When the vehicle 10 is connected to the relay device 11, the DC power is supplied to the vehicle 10 and the battery 40 in the vehicle 10 is charged. On / off of each power supply path switch 17 is controlled by the system controller 30.

  The power receiving path switch 18 is also provided individually for each parking section of the parking lot 3. One end of each power receiving path switch 18 is connected to the DC / AC converter 23 in the power distribution device 21, and the other end is connected to each relay device 11 in each parking section. When the power receiving path switch 18 is turned on, the battery power of the vehicle 10 connected to the relay apparatus 11 is output from the relay apparatus 11 connected to the turned on power receiving path switch 18 to the power distribution apparatus 21. The As a result, the battery power of the vehicle 10 can be output to the load groups 26 and 27. On / off of each power receiving path switch 18 is controlled by the system controller 30.

  Among the above-described charging power output function and power receiving relay function included in the power receiving / feeding switching device 5, the charging power output function is realized by turning on the system disconnection switch 15 and the power feeding path switch 17, and the power receiving relay function is This is realized by turning on the power receiving path switch 18.

  Note that these two functions are mutually exclusive, and when one function is activated, the other function may be stopped. Alternatively, either function may be activated individually for each parking section. For example, for a certain parking section, the power receiving relay function is operated to receive battery power from the vehicle 10 to the building 1, and for another parking section, the charging power output function is operated to connect the battery 40 of the vehicle 10. You may make it charge.

(4) Description of power supply / reception stand Next, a specific configuration of the power supply / reception stand 7 will be described with reference to FIG. The power supply / reception stand 7 includes a relay device 11, a connection cable 12, and a connector 13.

  The connector 13 is provided at one end of the connection cable 12. The other end of the connection cable 12 is connected to the relay device 11. The connection cable 12 includes a power line 12a for DC power supply and a communication line 12b for data transmission / reception.

  The power line 12 a is connected to the power supply / reception switching device 5 via the relay device 11. Therefore, by connecting the connector 13 to the vehicle 10, the power for charging the battery 40 is supplied from the power supply / reception switching device 5 to the vehicle 10 via the relay device 11, or the battery power of the battery 40 is received by the relay device 11 and the power supply. Power can be received on the building 1 side via the power switching device 5.

  The communication line 12 b is connected to the data relay unit 9 in the relay device 11. The data relay unit 9 is connected to the system control device 30 in the building 1. The data relay unit 9 has a function of relaying data communication between the vehicle 10 and the system control device 30. That is, the data transmitted and received between the two is relayed.

  The data relay unit 9 is connected to the input / output unit 14. The input / output unit 14 includes an input unit 14a, a display unit 14b, and a non-contact communication unit 14c. The input unit 14a includes, for example, a touch panel, buttons and switches that are directly operated by the user, and is configured to accept various input operations by the user.

  The display unit 14b is a display device that can display an image, such as a liquid crystal display. The user operates the input unit 14a, for example, causes the data relay unit 9 to acquire various information (vehicle information, battery information, external power feeding related information, etc.) held by the vehicle 10 and displays it on the display unit 14b. Or display various registration information corresponding to the parking area where the relay device 11 is installed in the user management table stored in the system storage unit 32 and display it. It can be displayed on the part 14b.

  The non-contact communication unit 14c is a wireless communication device that transmits and receives radio waves by non-contact near field communication (for example, NFC). When a wireless device having a non-contact short-range wireless communication function is held over the non-contact communication unit 14c, a communication session is established between the wireless device and the non-contact communication unit 14c according to the communication protocol for non-contact short-range wireless communication. To do. As a result, data communication between the wireless device and the system control device 30 via the data relay unit 9 becomes possible. A portable terminal 60 of FIG. 5 described later has a non-contact short-range wireless communication function.

  The data relay unit 9 is equipped with a microcomputer, and the microcomputer controls the input / output unit 14 and data relay. Further, the data relay unit 9 has a function of periodically detecting whether or not the connector 13 is connected to the vehicle 10 and notifying the detection result to the system control device 30. The system control device 30 updates the cable connection information in the user management table every time the periodic notification is performed. Information about whether or not the connector 13 is connected to the vehicle 10 may be acquired by, for example, the system control device 30 actively searching for itself, or based on data communication with the vehicle 10 ( For example, it may be acquired based on whether or not data communication has been executed.

(5) Description of Vehicle Next, a specific configuration of the vehicle 10 will be described with reference to FIG. The vehicle 10 includes a battery unit 41, a charging high-voltage connector 43, an inverter 45, a motor 46, a vehicle control unit 47, a wireless communication device 48, and an external power supply / reception switch 49.

  The battery unit 41 includes a battery 40. The battery 40 is a rechargeable secondary battery such as a nickel hydride secondary battery or a lithium ion secondary battery. The rated voltage of the battery 40 is 400 V in this embodiment.

  The battery unit 41 has a function of monitoring the state of the battery 40. Specifically, the battery unit 41 periodically detects the current capacity Bc, the remaining battery level Br, the SOC, the SOH, the SOP, and the battery voltage Vb in the battery information of the battery 40, and controls the detection result for vehicle control. Output to unit 47. Each time the detection result is output, the output detection result is stored in the vehicle storage unit 52 in the vehicle control unit 47. That is, of the battery information stored in the vehicle storage unit 52, each piece of information that is periodically output from the battery unit 41 is updated to the output information every time it is output from the battery unit 41.

  The charging high-voltage connector 43 is a connector for taking in high-voltage DC power for charging (DC 400 V in the present embodiment) from an external charger, or conversely supplying the battery power of the battery 40 to the outside of the vehicle. . The connector 13 of the power supply / reception stand 7 installed in the parking lot 3 can be connected to the charging high-voltage connector 43 of the vehicle 10. That is, connecting the connector 13 of the power supply / reception stand 7 to the vehicle 10 more specifically means connecting to the high-voltage connector 43 for charging of the vehicle 10.

  When the connector 13 of the power supply / reception stand 7 is connected to the high-voltage connector 43 for charging of the vehicle 10, the power line 12a on the power supply / reception stand 7 side and the power line 43a in the vehicle 10 are electrically connected, and the power supply / reception stand The communication line 12b on the 7 side and the communication line 43b in the vehicle 10 are electrically connected. As a result, power can be supplied and received between the battery 40 and the outside, and data communication between the vehicle control unit 47 and the system control device 30 is possible.

  The motor 46 is a motor serving as a drive source for rotating drive wheels (not shown) of the vehicle 10. The inverter 45 converts the battery power of the battery 40 into power for driving the motor 46 and outputs it to the motor 46. The operation of the inverter 45 (and consequently the rotation of the motor 46) is controlled by the vehicle control unit 47.

  The vehicle control unit 47 realizes various functions such as charge / discharge control of the battery 40 and drive control of the inverter 45. The vehicle control unit 47 includes a vehicle control unit 51 and a vehicle storage unit 52. The vehicle storage unit 52 is a storage device capable of storing and reading data. The vehicle storage unit 52 stores a program for each process shown in FIGS. The vehicle storage unit 52 stores the vehicle information, battery information, external power supply related information, and external power supply availability information described above. Furthermore, user information can be acquired from the portable terminal 60 by wireless communication, and the user information can be stored in the vehicle storage unit 52.

  The vehicle control unit 51 implements various functions included in the vehicle 10 by executing various programs stored in the vehicle storage unit 52. The wireless communication device 48 is a communication device for performing wireless communication by a predetermined wireless communication method (for example, wireless LAN, LTE, etc.).

  The external power supply / reception switch 49 is a switch for allowing the user to set whether or not to permit battery power output to the outside of the vehicle 10, and the setting content is stored in the vehicle storage unit 52 as external power supply availability information. . For example, when external output is permitted by the external power supply / reception switch 49, information indicating that external output of battery power is possible is stored in the vehicle storage unit 52 as external power supply availability information. On the contrary, when the external output is rejected by the external power supply / reception switch 49, information indicating that the external output of the battery power is rejected and impossible is stored in the vehicle storage unit 52 as the external power supply availability information. The

  Although not shown in FIG. 4, the vehicle 10 has a connector for taking in AC power of AC 100 V or AC 200 V from the outside, and charging power for the battery 40 (DC 400 V) from the AC power taken from the connector. And an in-vehicle charger that converts the power into the battery 40 and supplies it to the battery 40. Therefore, the battery 40 can be charged not only by a charger that outputs DC 400V, but also by commercial AC 100V or AC 200V AC power.

(6) Description of Mobile Terminal Next, a specific configuration of the mobile terminal 60 will be described with reference to FIG. The portable terminal 60 includes a terminal control unit 61, a terminal storage unit 62, a wireless communication unit 63, a non-contact communication unit 64, an input unit 65, and a display unit 66.

  The terminal storage unit 62 is a storage device that can store and read data. The terminal storage unit 62 stores various programs and data. The data stored in the terminal storage unit 62 includes user information. User information can be arbitrarily changed by a user operation.

  The wireless communication unit 63 is a communication device for performing wireless communication by a predetermined wireless communication method (for example, wireless LAN, LTE, etc.). The wireless communication unit 63 and the wireless communication device 48 of the vehicle 10 can exchange data with each other using the same wireless communication method.

  The non-contact communication unit 64 has basically the same configuration and the same function as the non-contact communication unit 14c (see FIG. 3) included in the relay device 11. More specifically, holding the portable terminal 60 over the relay device 11 means that the portion of the portable terminal 60 where the non-contact communication unit 64 is mounted is close to the portion of the relay device 11 where the non-contact communication unit 14c is mounted. It means that

  The input unit 65 includes, for example, a touch panel and buttons and switches that are directly operated by the user, and is configured to accept various input operations by the user. The display unit 66 is a display device that can display an image, such as a liquid crystal display.

The terminal control unit 61 realizes various functions based on various programs and data stored in the terminal storage unit 62.
(7) Processes Executed by System Control Device Various processes executed by the system control unit 31 of the system control device 30 will be described with reference to FIGS. In the present embodiment, data communication (information transmission / reception) between the system control device 30 and the portable terminal 60 is performed via the power supply / reception stand 7 unless otherwise specified. In addition, data communication (information transmission / reception) between the system control device 30 and the vehicle 10 is performed by wired data communication via the power supply / reception stand 7 unless otherwise specified.

(7-1) Exit / Exit Management Processing First, exit / exit management processing will be described with reference to FIG. The exit / exit management process manages the entry / exit status for each user (employee) who parked the vehicle 10 in the parking area of the parking lot 3 and basic information about the vehicle 10 parked in the parking area (user name, delivery) (Scheduled time and cable connection information) is registered in the user management table. After the activation, the system control unit 31 reads the exit / exit management processing program of FIG. 7 from the system storage unit 32 and periodically executes it.

  When the exit / exit management process of FIG. 7 is started, the system control unit 31 determines whether or not the portable terminal 60 is held over the relay device 11 in any parking section in the parking lot 3 in S101. If the portable terminal 60 is not held over (S101: NO), the exit / exit management process is terminated.

  When the mobile terminal 60 is held over any of the relay devices 11 (S101: YES), the process proceeds to S103 and subsequent steps for the parking area where the relay device 11 held over is placed. In S103, user information is acquired from the portable terminal 60. As described above, the user information is a user name and a user schedule.

  In S105, the exit / exit status of the user of the portable terminal 60 is confirmed. The leaving / leaving status is information indicating whether the employee has left the office or has left the office, and is set individually for each user (that is, for each employee of the company). In S107, it is determined whether or not the leaving / leaving status is registered as leaving. If the employee has been registered for leaving (S107: YES), in S109, the leave / leave status is changed to leave registration. As a result, the fact that the user (employee) has joined the office is registered on the attendance management system.

  In S111, schedule synchronization processing is performed. Specifically, the user schedule acquired from the portable terminal 60 and the user schedule stored in the system storage unit 32 are compared, and both share the same and latest information.

  In S <b> 113, it is determined whether or not the connector 13 of the connection cable 12 of the relay device 11 is connected to the vehicle 10. This determination can be made by making an inquiry to the relay device 11, but it can also be determined using another method, for example, trying data communication with the vehicle 10.

  In S123, the information corresponding to the target parking area in the user management table is updated based on the user information acquired in S103 and the confirmation result in S113. Specifically, the user name, scheduled shipping time, and cable connection information are updated.

  In S107, when the leaving / leaving status is registered for leaving the company (S107: NO), the leaving / leaving status is changed to leaving registration in S115. Thus, the fact that the user (employee) has left the office is registered on the attendance management system. In S117, schedule synchronization processing is performed in the same manner as in S111.

  In S119, it is determined whether or not the connector 13 of the connection cable 12 of the relay device 11 is still connected to the vehicle 10. If it is still connected (S119: YES), in S121, a warning is output to disconnect the connector 13, and the process returns to S119. The warning may be displayed, for example, on the display unit 14b of the relay device 11, or may be performed by voice from a speaker (not shown) provided in the relay device 11.

  If the connector 13 is disconnected from the vehicle 10 in S119 (S119: NO), the process proceeds to S123, where the user name, scheduled delivery time, and cable connection information in the user management table are updated. The process of S123 when proceeding from S119 to S123 is a process of deleting both the user name and the scheduled delivery time corresponding to the corresponding parking area in the user management table and updating the cable connection information to “none”.

(7-2) Power Receiving Process Next, the power receiving process will be described with reference to FIG. The power reception process is a process for taking in battery power from the vehicle 10 parked in the parking lot 3 and using it as power for operating the load groups 26 and 27 in the building 1. After starting, the system control unit 31 reads the power reception processing program of FIG. 8 from the system storage unit 32 and periodically executes it.

  When the power reception process in FIG. 8 is started, the system control unit 31 determines whether or not a power reception execution condition is satisfied in S151. For example, when a predetermined power reception execution condition is satisfied, such as when the power demand in the building 1 exceeds a certain level or during a peak time period (S151: YES), battery power is received from the parked vehicle 10 Therefore, the process proceeds to S153 and subsequent steps. If the power reception execution condition is not satisfied (S151: NO), the power reception process is terminated.

  In S153, the vehicle 10 parked in the parking area in the parking lot 3 and connected to the connector 13 of the power supply / reception stand 7 of the parking area (hereinafter referred to as “connected vehicle”) is connected. External power supply availability information stored in the vehicle is acquired and registered in the user management table. When there are a plurality of connected vehicles, external power supply availability information is acquired for each connected vehicle.

  In S155, among the connected vehicles, the connected vehicles for which external power feeding is permitted, that is, the connected vehicles whose external power feeding availability information is set to “permitted” indicating that external power feeding is permitted are permitted. Set to connected vehicle. In S157, vehicle holding information is acquired from the permitted connected vehicle. The vehicle holding information indicates vehicle information, battery information, and external power feeding related information among various data stored in the vehicle storage unit 52 of the vehicle 10. Then, based on the acquired vehicle holding information and various information including at least the scheduled delivery time in the user management table, a vehicle that can receive battery power is determined as a power reception target vehicle from among the permitted connected vehicles.

  Various methods for determining the power reception target vehicle are conceivable. For example, the battery remaining amount Br is larger than the remaining amount lower limit Ur by a certain value or more, the SOC is a certain level or more, the charging power unit price Eb is a certain price or less, and the scheduled delivery time is after a predetermined time (for example, 17:00) Or the like) can be used as the determination condition for the power receiving target vehicle. It is also possible to appropriately determine how many determination conditions are combined to determine the power receiving target vehicle. Of the above-mentioned conditions, in particular, the remaining battery level Br is larger than the remaining amount lower limit Ur by a certain value or more, and the SOC is more than a certain level, both of which are the remaining condition of the present invention. It corresponds to an example.

  In the present embodiment, as an example, description will be made assuming that the battery power is received from the vehicle 10 during the peak time period and used as the operating power for the load groups 26 and 27. Therefore, in this example, the power reception execution condition is to enter the peak time zone. In addition, as an example of the determination condition for the power receiving target vehicle, it is assumed that the scheduled delivery time is after 17:00 and that the SOC is equal to or higher than a certain level.

  If the time from the end of the period for receiving power to the scheduled departure time is short, there is a possibility that a sufficient amount of power (current supply amount K0 described later) cannot be returned to the power receiving target vehicle by the scheduled departure time. is there. Therefore, in determining the power reception target vehicle, it is desirable that the time from the end of power reception to the scheduled delivery time is at least a specified time. Note that the specified time may be appropriately determined within a time range in which a desired amount of power can be returned (that is, the battery 40 can be charged with a desired amount of power).

  In S159, it is determined whether or not power reception from the power reception target vehicle can be executed. Specifically, it is determined whether or not the total of received power (total received power) that can be received from all the power reception target vehicles determined in S157 is equal to or higher than a specified level. If the total received power is less than the specified level, it is determined that power reception cannot be performed, and if the total received power is equal to or higher than the specified level, it is determined that power reception can be performed. Even if the battery power can be received from the power receiving target vehicle, if the total received power is too low, the effect of reducing the electricity charge in the peak time zone is not very good. Therefore, in this embodiment, when the total received power is less than the specified level, the vehicle battery power is not used, and when the total received power is equal to or higher than the specified level, the vehicle battery power is used for the peak time. The effect of reducing electricity charges in the belt is obtained.

  In S159, when it is determined that power reception from the power reception target vehicle is not feasible (that is, when the total received power is less than the specified level), the power reception process is terminated. If it is determined in S159 that power can be received from the power receiving target vehicle (that is, if the total received power is equal to or higher than the specified level), the process proceeds to S161.

  In S161, a power supply / reception plan is determined for each power reception target vehicle. The power supply / reception plan includes a power reception period for receiving power from the power reception target vehicle for each power reception target vehicle, and a charging power supply period for supplying charging power to the power reception target vehicle after the power reception period ends. . The power reception period is a period indicating when power reception from the power reception target vehicle starts and when power reception ends. The charging power supply period is a period indicating when the charging power is supplied to the power receiving target vehicle after the power receiving period ends and when the supply ends.

  In the present embodiment, the power reception period is set such that all the power reception target vehicles start power reception at the start of the peak time period and end power reception at the end of the peak time period. However, the power reception start time and the power reception end time may be set individually for each power reception target vehicle. For example, the amount of power that can be received from the power receiving target vehicle is calculated based on the battery remaining amount Br and the remaining amount lower limit Ur of the power receiving target vehicle, and the power receiving from the power receiving target vehicle is terminated based on the calculation result. The time may be determined.

Alternatively, the power reception end timing may not be specified by time (or based on the time specification), but may be specified based on the amount of received power or the remaining battery level Br. For example, a power reception target value may be set for each power reception target vehicle. When the power reception amount reaches the target value, the power reception may be terminated even if the power reception end time has not yet been reached. The target value of the amount of power received can be set as appropriate within a range smaller than the difference based on, for example, the difference between the remaining battery level Br and the remaining charge lower limit Ur. Further, for example, when the difference between the battery remaining amount Br and the remaining amount lower limit Ur becomes a certain amount or less, the power reception may be ended even if the power reception end time has not yet been reached. The setting example of the power reception period described above is merely an example, in which time zone the power reception period is specifically set,
On the other hand, as for the power supply period for charging, the same common period may be set for all the power receiving target vehicles, but in this embodiment, it is set individually for each power receiving target vehicle. For example, the power supply start time of the charging power is set earlier for the power reception target vehicle with the earlier scheduled delivery time. The charging power supply period can be appropriately determined as long as a desired power amount (current power supply amount K0 calculated in S173) can be supplied by the scheduled delivery time. For the vehicle 10 for which the scheduled delivery time is set to the night time zone, the charging power supply period may be set so that even a little of the power supply amount can be supplied to the night time zone.

  Note that it is not essential to determine all the power supply / reception plans in S161 (that is, to determine all before the start of power reception). For example, for the power supply period for charging in the power supply / reception plan, power reception from the power reception target vehicle has ended. It may be decided later. Specifically, for example, after the power reception from the power receiving target vehicle is completed (S167) and then the current power supply amount K0 is calculated (S173), the current power supply amount KO, the scheduled shipping time, etc. The charging power supply period may be determined so that the power of the power supply amount K0 can be supplied to the power receiving target vehicle by the scheduled delivery time.

  After the power supply / reception plan is determined in S161, the process proceeds to S163. In S163, power is received from each power receiving target vehicle. Specifically, the power receiving / switching device 5 is configured to turn off all the system disconnection switches 15 and the power feeding path switches 17 and turn on the power receiving path switch 18 corresponding to the power receiving target vehicle. Is input to the power distribution device 21 via the relay device 11 and the power reception path switch 18. Furthermore, by transmitting a power reception request signal to the power reception target vehicle, the power reception target vehicle is brought into a state in which battery power can be output to the outside. Further, by operating the DC / AC converter 23 in the power distribution device 21 and controlling the power distribution circuit 24, power based on the battery power received from the power receiving target vehicle is supplied to the load groups 26 and 27. Thereby, the battery power of the power receiving target vehicle is used for the operations of the load groups 26 and 27.

  While the battery power of the power receiving target vehicle is used for the operations of the load groups 26 and 27, the power consumption of the commercial AC system 100 may be suppressed according to the demand power. For example, priority may be given to consuming battery power of the power receiving target vehicle, and the shortage may be compensated from the commercial AC system 100. Conversely, when the upper limit of power to be supplied from the commercial AC system 100 to each of the load groups 26 and 27 is set and the demand power exceeds the upper limit, the excess is used as the battery power of the power receiving target vehicle. You may make it supplement by using.

  In S165, it is determined whether or not there is a power receiving target vehicle to finish receiving battery power. For example, when the power reception end timing indicated by the power supply / reception plan determined in S161 is reached, it is determined that the power reception should be ended. In addition, for example, when the battery remaining amount Br or SOC of each power receiving target vehicle is periodically acquired and the SOC becomes lower than the SOC lower limit Us or the battery remaining amount Br becomes lower than the remaining amount lower limit Ur, Even if the end timing has not yet been reached, it may be determined that the power reception should be ended.

  If there is a power receiving target vehicle that should receive power (S165: YES), the battery power receiving from the power receiving target vehicle is ended in S167. Specifically, at least the power receiving path switch 18 in the power receiving / power supply switching device 5 is turned off to prevent battery power from being input to the power distribution device 21 from the power receiving target vehicle. Furthermore, by transmitting a power reception completion signal to the power receiving target vehicle, the power receiving target vehicle is brought into a state where battery power is not output to the outside. In S169, a power reception completion signal is transmitted to the power reception target vehicle.

  In S171, the current power reception amount G0, the cumulative power reception amount Gx, and the cumulative power reception count J of the power reception target vehicle in the user management table are updated. The current power reception amount G0 may be updated to that value if determined in advance in S161. Alternatively, the actually received power amount may be detected using a sensing means (not shown) such as a power sensor (not shown), and the detected value may be set as the current received amount G0. The accumulated power reception amount Gx is calculated by adding the current power reception amount G0 to the current cumulative power reception amount Gx. The cumulative power reception count J is calculated by incrementing the current cumulative power reception count J by one.

  In S173, a power supply amount (current power supply amount K0) to be supplied to the power receiving target vehicle for battery charging is calculated in the subsequent individual power supply process (FIG. 9). The power supply amount K0 this time can be calculated by various methods. For example, the same amount of power as the current power reception amount G0 may be set as the current power supply amount K0 so that only the borrowed amount is returned. Further, for example, by setting a power amount larger than the current power reception amount G0 to the current power supply amount K0, it may be returned more than the borrowed amount. Specifically, for example, the current power supply amount K0 may be set to a larger value as the cumulative power reception amount Gx increases, or the current power supply amount K0 may be set to a larger value as the cumulative power reception count J increases. Also good. Further, for example, the current power supply amount K0 may be set to a larger value as the charging power unit price Eb of the received battery power is higher. In other words, depending on the contribution of the vehicle to be powered (how much battery power was supplied to the system when battery power was needed), the higher the contribution, the more power than the received power. The amount may be supplied to the power receiving target vehicle.

  After calculating the current power supply amount K0 in S173, the process proceeds to S175. In S175, it is determined whether there is a power receiving target vehicle that is currently receiving battery power. If there is still a power receiving target vehicle that is receiving battery power (S175: YES), the process returns to S165. When the power reception has been completed for all the power reception target vehicles (S175: NO), the power reception process is terminated.

(7-3) Individual Power Supply Process Next, the individual power supply process will be described with reference to FIG. The individual power supply process is a process for charging the battery 40 by supplying power for charging the battery 40 to the vehicle 10 that has supplied battery power to the building 1 by the power reception process of FIG. 8.

  Each time the power reception from the power reception target vehicle is completed in the power reception processing of FIG. 8, that is, each time the processing of S167 to S173 is executed for a certain power reception target vehicle, the system control unit 31 individually for each power reception target vehicle. The individual power supply process of FIG. 9 is periodically and repeatedly executed with the power reception target vehicle as a power supply target vehicle to which charging power is to be supplied.

  When the system control unit 31 starts the individual power supply process of FIG. 9 for a certain power supply target vehicle, in S201, is a power supply execution condition for supplying power for battery charging to the power supply target vehicle established? Judge whether or not. Various power supply execution conditions are conceivable. For example, it can be assumed that the power supply start time set in the power supply / reception plan determined in S161 of FIG. 8 has been reached.

  If the power supply execution condition is not satisfied (S201: NO), the individual power supply process is terminated. When the power supply execution condition is satisfied (S201: YES), the process proceeds to S203. In S203, a power supply request signal is transmitted to the power supply target vehicle.

  In S205, it is determined whether a power supply permission signal has been received from the power supply target vehicle. When the power supply permission signal is not received, that is, when the power supply disabled signal is received (S205: NO), the individual power supply process is terminated. When the power supply permission signal is received (S205: YES), power supply for charging to the power supply target vehicle is performed in S207. Specifically, the power supply / reception switching device 5 is turned off by turning off all the power reception path switches 18, turning on the system disconnection switch 15, and turning on the power supply path switch 17 corresponding to the power supply target vehicle. The charging power generated by the AC / DC converter 16 of the device 5 is supplied to the power supply target vehicle.

  Power supply for charging to the power supply target vehicle is performed with the target of supplying the current power supply amount K0 calculated in S173 of FIG. 8 for the power supply target vehicle. In S209, it is determined whether power supply is completed.

  Specifically, it is determined whether or not the power supply amount has reached the current power supply amount K0. If the power supply has not yet been completed (that is, the current power supply amount K0 has not yet been reached) (S209: NO), the process returns to S207 to continue the power supply. When the power supply is completed (that is, the power supply amount has reached the current power supply amount K0) (S209: YES), a power supply end process is performed in S211. Specifically, the supply of charging power to the power supply target vehicle is stopped by turning off the power supply path switch 17 corresponding to the power supply target vehicle. Note that when the supply of charging power to all power supply target vehicles is completed, the system disconnection switch 15 is also turned off. In S213, a power supply completion signal is transmitted to the power supply target vehicle.

In addition, when it is not possible to supply all of the current power supply amount K0 for some reason, the shortage may be supplied after the next day.
(8) Processes Executed by Vehicle Various processes executed by the vehicle control unit 51 of the vehicle control unit 47 in the vehicle 10 will be described with reference to FIGS.

(8-1) Vehicle Information Management Process First, the vehicle information management process will be described with reference to FIG. In the vehicle information management process, various types of information are received from the outside and stored in the vehicle storage unit 52, or conversely, the information stored in the vehicle storage unit 52 is transmitted to the outside, or stored in the vehicle storage unit 52. The battery information is periodically updated. After being activated, the vehicle control unit 51 reads the vehicle information management processing program of FIG. 10 from the vehicle storage unit 52 and periodically executes it.

  When the vehicle information management process of FIG. 10 is started, the vehicle control unit 51 determines whether or not information is received from the portable terminal 60 by wireless communication in S251. Examples of information received from the portable terminal 60 include user information (user name and user schedule). When information is not received from the portable terminal 60 (S251: NO), the process proceeds to S255.

  When information is received from the portable terminal 60 (S251: YES), the information stored in the vehicle storage unit 52 is updated based on the received information in S253. As described above, the user information can be stored in the vehicle storage unit 52. Therefore, when user information is received from the portable terminal 60, the user information stored in the vehicle storage unit 52 is updated to the received user information.

  In S255, it is determined whether it is the update timing of the battery information (except for the rated capacity Bc0). As described above, the battery unit 41 periodically detects the current capacity Bc, the remaining battery level Br, the SOC, the SOH, the SOP, and the battery voltage Vb in the battery information of the battery 40, and the detection result is the vehicle. Output to the control unit 47. The update timing in S255 is a timing at which the detection result is output from the battery unit 41. In other words, the process of S255 can be said to be a process of determining whether or not the detection result of each of the battery information is output from the battery unit 41.

  If it is not the update timing of the battery information (that is, the detection result is not output from the battery unit 41) (S255: NO), the process proceeds to S261. When it is the update timing of the battery information (that is, the detection result is output from the battery unit 41) (S255: YES), the latest detection result of the battery information output from the battery unit 41 is acquired in S257. In S259, the battery information stored in the vehicle storage unit 52 is updated to the latest battery information acquired in S257.

  In S <b> 261, it is determined whether vehicle holding information is requested from the system control device 30. If the vehicle holding information is not requested (S261: NO), the vehicle information management process is terminated. When the vehicle holding information is requested (S261: YES), the vehicle holding information stored in the vehicle storage unit 52 is transmitted to the system control device 30 in S263. In the process of S157 in FIG. 8, the system control unit 31 requests vehicle holding information from the permitted connection vehicle in detail, and the permitted connection vehicle responds to the request by the process of S263 in FIG. This is a process realized by transmitting vehicle holding information to the vehicle.

(8-2) Normal Charging Process Next, the normal charging process will be described with reference to FIG. The normal charging process is a process for charging the battery 40 from a charger (not shown) through the charging high-voltage connector 43. When the connector of the charger is connected to the charging high-voltage connector 43, the vehicle control unit 51 reads and executes the normal charging process program of FIG. 11 from the vehicle storage unit 52.

  When the normal charging process of FIG. 11 is started, the vehicle control unit 51 determines whether or not the battery 40 is fully charged in S301. The state to be fully charged can be determined as appropriate. For example, the current capacity Bc may be fully charged, or 90% or more of the current capacity Bc is charged. It is good also as a state.

  If the battery is already fully charged (S301: YES), the charging completion process is executed in S303, and the normal charging process is terminated. As the charging completion process, for example, a process for notifying an external charger that the battery is already fully charged or a process for notifying the user that the battery is already fully charged can be considered.

  If it is not yet fully charged (S301: NO), the charging unit price ec is acquired in S305. The charging unit price ec is a cost required for charging by a charger from now on, and more specifically, a cost required for charging a power amount of 1 [Wh]. The charge unit price ec may be notified from the charger side, for example, may be stored in the vehicle 10 in advance, or the vehicle 10 may be acquired from the outside using wireless communication or the like. Also good.

  In S307, charge control parameters are calculated. The charge control parameters are various parameters necessary for an external charger to charge the battery 40. For example, a charging voltage and a charging current at the time of charging can be considered. In S309, charging is started by transmitting a charging command to an external charger. The charge command includes the charge control parameter calculated in S307. By transmitting a charging command to the external charger, charging power is supplied from the external charger. In S311, the supplied charging power is received and the battery 40 is charged.

  During the execution of charging, the state of the battery 40 is periodically notified from the battery unit 41. Based on the contents of the notification, in S313, it is determined whether or not the charging of the battery 40 is completed. In the present embodiment, it is determined that charging is complete when the battery is fully charged. If the charging is not yet completed (S313: NO), in S315, the charge control parameter is recalculated based on the current battery state, and the process returns to S309. When the charging is completed (S313: YES), a charging completion process is performed in S317 as in S303.

  In S319, the charging power unit price Eb is calculated based on the result of the current charging by the charger (for example, the charging power amount and the charging unit price ec). Various specific calculation methods of the charging power unit price Eb in S319 are conceivable. For example, by performing a weighted average calculation according to the ratio between the remaining battery charge Br before the current charging and the current charging power amount, the charging power unit price Eb before the current charging and the charging unit price ec at the current charging time, The latest charge power unit price Eb may be calculated. For example, the ratio between the remaining battery charge before charging and the current charging power amount is a: b, the charging power unit price Eb before charging is X yen, and the charging unit price ec at the current charging is Y yen. Suppose. In this case, when the weighted average calculation of both is performed, the latest received power unit price Eb is (a · X + b · Y) / (a + b) [yen]. Note that the weighted average calculation is merely an example, and the latest charge power unit price Eb may be calculated using another calculation method.

  After calculating the latest charging power unit price Eb in S319, the battery information stored in the vehicle storage unit 52 is updated based on the latest state after the current charging in S321. By performing the charging this time, at least the remaining battery level Br and the SOC of the battery information increase. The charging power unit price Eb is also updated to the latest charging power unit price Eb calculated in S319.

  Thus, whenever the battery 40 is charged by the external charger, the vehicle control unit 51 updates the battery information stored in the vehicle storage unit 52 based on the charging result.

(8-3) Power Reception Corresponding Process Next, the power reception corresponding process will be described with reference to FIG. The power reception handling process is a process for outputting battery power charged in the battery 40 to the building 1 and using it as operating power for the load groups 26 and 27. After being activated, the vehicle control unit 51 reads the program for the power reception correspondence process of FIG. 12 from the vehicle storage unit 52 and periodically executes it.

  When the power reception response process in FIG. 12 is started, the vehicle control unit 51 determines whether or not a power reception request signal has been received from the system control unit 31 in S351. The power reception request signal is transmitted from the system control device 30 as one of the processes of S163 in FIG.

  If the power reception request signal has not been received (S351: NO), the power reception processing is terminated. When the power reception request signal is received (S351: YES), external power feeding is executed in S353. That is, the battery power charged in the battery 40 is output from the charging high-voltage connector 43 to the outside. Thereby, the battery power is input to the power distribution device 21 in the building 1 through the power reception path switch 18 in the power supply / reception switching device 5. Then, it is converted into AC 100 V and AC 200 AC power in the power distribution device 21 and supplied to the load groups 26 and 27.

  In S355, it is determined whether a power reception completion signal has been received from the system control unit 31. The power reception completion signal is transmitted in S169 of FIG. When the power reception completion signal has not been received (S355: NO), the process returns to S353. When the power reception completion signal is received (S355: YES), the battery power supply to the outside is stopped in S357.

  Although not shown in FIG. 12, if a predetermined condition for stopping external power supply of battery power is satisfied while waiting for reception of a power reception completion signal, the power reception completion signal is not received. In step S357, power supply to the outside is stopped. Although the predetermined conditions for stopping external power feeding can be determined as appropriate, in the present embodiment, the remaining battery level Br is less than or equal to the remaining capacity lower limit Ur, and the SOC of the battery 40 is less than or equal to the SOC lower limit Us. Is set. When one of these two conditions is satisfied, external power supply of battery power is stopped.

  In S359, the battery information stored in the vehicle storage unit 52 is updated based on the latest state after the current external power feeding. Since the external power supply is performed this time, at least the remaining battery level Br and the SOC are reduced in the battery information.

(8-4) Power Supply Corresponding Process Next, the power supply compatible process will be described with reference to FIG. The power supply compatible process is a process for charging the battery 40 based on the charging power supplied from the power supply / reception switching device 5 after the power reception compatible process of FIG. After being activated, the vehicle control unit 51 reads the program for the power feeding correspondence process of FIG. 13 from the vehicle storage unit 52 and periodically executes it.

  When the vehicle control unit 51 starts the power supply handling process of FIG. 13, the vehicle control unit 51 determines whether a power supply request signal is received from the system control unit 31 in S <b> 401. The power supply request signal is transmitted from the system control device 30 in S203 of FIG.

  If the power supply request signal has not been received (S401: NO), the power supply handling process is terminated. When the power supply request signal is received (S401: YES), it is determined in S403 whether or not the battery 40 can be charged. For example, when the battery 40 is already fully charged or when the temperature of the battery 40 is outside the allowable charging range, the battery 40 is not in a chargeable state.

  When the battery 40 is not in a chargeable state (S403: NO), in S405, a power supply disabling signal is transmitted to the system control unit 31, and the power supply handling process is terminated. If the battery 40 can be charged (S403: YES), a power supply permission signal is transmitted to the system control unit 31 in S407. The power for charging is supplied from the power supply / reception switching device 5 by transmitting the power supply permission signal in S407. In S409, the battery 40 is charged based on the supplied charging power.

  In step S411, it is determined whether a power supply completion signal is received from the system control unit 31. When the power supply completion signal has not been received (S411: NO), the process returns to S409. When the power supply completion signal is received (S411: YES), charging of the battery 40 is stopped by cutting off the power path from the outside to the battery 40 in S413. However, the fact that the power supply completion signal has been received means that the supply of charging power from the power supply / reception switching device 5 has already been stopped.

  In S415, the battery information stored in the vehicle storage unit 52 is updated based on the latest state after the current charging. By performing the charging this time, at least the remaining battery level Br and the SOC of the battery information increase.

(9) Effects of the First Embodiment As described above, in the power supply / reception system of the present embodiment, the battery power of the vehicle 10 parked in the parking lot 3 is used to operate the load groups 26 and 27 in the building 1. It can be used as power. Therefore, by using the electric power from the vehicle 10 in addition to the electric power from the commercial AC system 100 in the time zone when the electric power demand is large, it is possible to cope with the large electric power demand.

  In addition, the battery power of the vehicle 10 is received during a time zone where the electricity rate is relatively high (for example, a peak time zone), and the amount of AC power received from the commercial AC system 100 is suppressed accordingly. By returning the electric power to the battery 40 of the vehicle 10 when the time is low, the total amount of electricity charges throughout the day can be suppressed as a result.

  As described above, in the present embodiment, the operating power of the load groups 26 and 27 can be received from the parked vehicle 10 in addition to the commercial AC system 100. Therefore, it is possible to cope with an increase in power demand with a margin, and it is also possible to suppress the electricity bill.

  Further, when battery power is received from a parked vehicle 10, battery power is not unconditionally taken out from all parked vehicles 10, but a vehicle 10 that can receive power from a parked vehicle 10 (a power receiving target) Vehicle) is determined (S157). The battery power is received from the power receiving target vehicle and used for load operation. Therefore, the battery power of the vehicle 10 can be effectively used while suppressing the influence on the parked vehicle 10.

  The determination of the power reception target vehicle is performed mainly based on the battery information and the external power feeding related information of each vehicle 10. That is, when trying to receive battery power from the vehicle 10, the system control unit 31 acquires battery information and external power supply related information from a vehicle (permitted connection vehicle) for which external power supply is permitted. As described above, the battery information includes the remaining battery level Br, SOC, SOH, and the like, and the external power supply related information includes the remaining capacity lower limit Ur and the SOC lower limit Us as described above.

  And the system control part 31 excludes from the power receiving object vehicle, for example, when the battery remaining amount Br is close to the remaining amount lower limit Ur or when the SOC is close to the SOC lower limit Us. That is, the vehicle 10 having a sufficient remaining battery capacity Br is preferentially determined as the power reception target vehicle. Therefore, it is possible to prevent the battery remaining power Br from being further reduced by taking out battery power from the vehicle 10 that originally has a small remaining battery power Br, thereby hindering subsequent travel.

  Moreover, even if the remaining battery level Br is sufficient, if the scheduled delivery time of the vehicle 10 is early, the battery 40 is sufficiently discharged until the vehicle 10 is delivered after receiving battery power from the vehicle 10. There is a possibility that it cannot be charged. Therefore, the power receiving target vehicle can be determined more appropriately by taking into account the user's schedule (particularly the scheduled delivery time) when determining the power receiving target vehicle. In particular, when there is a vehicle 10 whose scheduled delivery time is the night time zone, when receiving battery power from the vehicle 10 and returning the power thereafter, at least a part of the returned time zone can be set to the night time zone. it can. In that case, the electricity bill can be reduced more inexpensively.

  In the present embodiment, the user who parked the vehicle 10 in the parking section holds the portable terminal 60 over the relay device 11 in the parking section, so that the user information and the user schedule are transmitted to the system control apparatus 30. Therefore, the system control apparatus 30 can manage a parking state efficiently, without taking a user's effort. In addition, when the mobile terminal 60 is held over and user information is transmitted, the system control device 30 can also manage the attendance / exit of the user (time management).

  In addition, when the system control device 30 receives battery power from the power receiving target vehicle and returns the power to the power receiving target vehicle again (supplying charging power), the system control device 30 determines the amount of power to be returned as the contribution degree of the power receiving target vehicle ( The higher the amount of power that is supplied to the system when battery power is needed, the higher the amount of power received. For example, the greater the accumulated power reception amount Gx or the greater the cumulative power reception count J, the more power is returned to the vehicle. Therefore, the user of the vehicle 10 is more motivated to lend battery power to the system side, and a situation in which battery power can be received from more vehicles 10 can be generated.

  In the present embodiment, the connector 13 corresponds to an example of a vehicle connection portion of the present invention. The power supply / reception switching device 5 and the power distribution device 21 correspond to an example of a power receiving unit of the present invention. The power supply / reception switching device 5 corresponds to an example of the charging power output unit of the present invention. The system control unit 31 corresponds to an example of a power reception target determination unit, a power reception instruction unit, a charge instruction unit, a remaining amount information acquisition unit, and a release time information acquisition unit of the present invention. The battery remaining amount Br and SOC correspond to an example of remaining amount information of the present invention. The scheduled delivery time corresponds to an example of release time information of the present invention.

  Further, the processes of S163 to S167 in FIG. 8 and the process of S613 in FIG. 14 each correspond to an example of the process of the power reception instruction unit of the present invention. Moreover, the process of S207-S211 of FIG. 9 is corresponded to an example of the process of the charge instruction | indication part of this invention. Moreover, both the process of S157 of FIG. 8 and the process of S605 of FIG. 14 are equivalent to an example of the process of the remaining amount information acquisition part of this invention. Moreover, the process of S123 of FIG. 7 is corresponded to an example of the process of the cancellation | release time information acquisition part of this invention.

  Note that the specific processing corresponding to the power reception instruction unit of the present invention is not limited to each of the above processing (S163 to S167 in FIG. 8). As long as the battery power can be received from the power receiving vehicle during the power receiving period (and the received power can be supplied to the load groups 26 and 27), the power supply path from the battery 40 of the vehicle 10 to the load groups 26 and 27 Specific configurations and specific processing contents of the system control unit 31 for these configurations can be determined as appropriate.

  Further, the specific processing corresponding to the charging instruction unit of the present invention is not limited to the processing in S207 to S211 in FIG. As long as the charging power of the battery 40 can be supplied to the charging target vehicle during the charging power supply period, the specific circuit configuration for generating the charging power and supplying it to the vehicle 10 and the specific processing contents of the system control unit 31 are as follows. Can be determined as appropriate.

[Second Embodiment]
Since the basic configuration of the second embodiment is the same as that of the first embodiment, the description of the common configuration will be omitted, and the description will focus on the differences.

  In the first embodiment described above, the value of the battery power of each vehicle 10 is not referred to in determining which vehicle 10 receives the battery power (that is, determining the power reception target vehicle). On the other hand, in the second embodiment, when determining the power reception target vehicle, mainly the value of the battery power of each vehicle 10 (specifically, the power selling price Es) is considered.

  Moreover, 1st Embodiment was the structure which returns electric power to the electric power receiving object vehicle again, when battery electric power is received from an electric power receiving object vehicle and it uses for load operation. On the other hand, in the second embodiment, battery power is purchased from a power receiving target vehicle. That is, the amount of power received from the power receiving target vehicle is returned to the user (for example, paid in cash).

  The power selling price Es is a unit price per unit power amount when selling battery power to the outside of the vehicle 10. The electric power selling price Es is stored as a part of the external power feeding related information in the vehicle 10. The power selling price Es may be set automatically by the vehicle control unit 51 or may be arbitrarily set by the user.

  When the vehicle control unit 51 automatically sets the power selling price Es, for example, the charging power unit price Eb may be set to the power selling price Es as it is, or a price higher than the charging power unit price Es by a certain amount. The power selling price Es may be set.

  On the other hand, as a configuration in which the user can arbitrarily set the power selling price Es, for example, a configuration in which the user can directly input the power selling price Es via an input device provided inside the vehicle 10 is conceivable. Further, for example, the power sale price Es may be input using the portable terminal 60, and the input power sale price Es may be transmitted to the vehicle 10 by wireless communication.

The power reception process of this embodiment will be described with reference to FIG. The power receiving process in FIG. 14 is a process executed by the system control unit 31 as in the power receiving process in the first embodiment shown in FIG.
When the power reception process of FIG. 14 is started, the system control unit 31 determines whether or not a power reception execution condition is satisfied in S601. This determination method is exactly the same as S151 in FIG. That is, for example, when a predetermined power reception execution condition is satisfied, such as when the power demand in the building 1 exceeds a certain level or reaches a peak time zone (S601: YES), the process proceeds to S603.

  In S603, a search is made for a connected vehicle (permitted connected vehicle) for which external power feeding is permitted. The process of S603 is substantially the same as the process of S153 to S155 of FIG. In S605, the vehicle holding information stored in the vehicle storage unit 52 of the permitted connection vehicle is acquired from the permitted connection vehicle searched in S603. In S607, a receivable vehicle capable of receiving battery power is determined based on the acquired vehicle holding information of each permitted connection vehicle. The method for determining the power-receivable vehicle is the same as the method for determining the power-receiving target vehicle in S157 in FIG.

  In determining the power-receivable vehicle in S607, the power selling price Es is not yet considered. In S607, a vehicle capable of receiving power is determined based on whether or not there is a capacity allowance or a schedule allowance sufficient to supply battery power to the outside.

  In step S609, a power receiving target vehicle is determined from each power receivable vehicle based on the power selling price Es of each power receivable vehicle. Various specific methods for determining a power receiving target vehicle based on the power selling price Es are conceivable. For example, a predetermined number of vehicles may be determined as the power reception target vehicles in order from the power receivable vehicle having the lowest power selling price Es. Further, for example, an upper limit price may be set, and a power-receivable vehicle whose power selling price Es is lower than the upper limit price may be determined as a power reception target vehicle. In that case, the power receiving target vehicles may be determined by narrowing down the number in the order from the lowest power selling price Es out of the power receiving possible vehicles whose power selling price Es is lower than the upper limit price.

  After the power reception target vehicle is determined in S609, the power reception amount is determined for each determined power reception target vehicle in S611. Various methods for determining the amount of received power are also conceivable. For example, the same power reception amount may be set equally for all power reception target vehicles. Further, for example, the power reception amount may be set to be larger as the power selling price Es is lower. When determining the amount of power received, it is necessary to make sure that the remaining battery level Br after power reception is not less than the lower limit of remaining amount Ur.

  In S613, battery power is received from each power receiving target vehicle. Specifically, the power of the amount of power received determined in S611 is received from each power reception target vehicle and supplied to the load groups 26 and 27. In S615, a reduction price corresponding to the amount of power received for the user of each power reception target vehicle is determined, and the reduction price is returned to the user.

  The method for determining the reduction price can be determined as appropriate. For example, it may be simply a price obtained by multiplying the power selling price Es by the amount of power received (hereinafter also referred to as “basic price”), or may be a price higher by a predetermined amount than the basic price. In this case, for example, the amount added to the basic price may be increased as the power selling price Es is lower. Further, for example, the amount added to the basic price may be increased as the cumulative power reception amount Gx is increased or the cumulative power reception count J is increased. Further, the return price itself to the user is merely an example, and the user may be rewarded by another method. For example, you may give some coupons (for example, employee cafeteria coupons, gift vouchers that can be used in nearby commercial facilities, etc.), or consider them as positive materials for the user's business assessment, When the user uses an in-house loan, the interest rate may be preferentially given as the amount of power received increases (for example, when the amount of power received reaches a certain level, the interest rate is decreased by 0.01%).

According to 2nd Embodiment explained in full detail above, when it is going to purchase electric power from the parked vehicle 10, electric power can be purchased as cheaply as possible.
[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention can take a various form, without being limited to the said embodiment.

  (1) The vehicle control information acquired by the system control device 30 may be acquired by a method other than the method of acquiring directly from the vehicle 10. For example, the system control device 30 requests the vehicle holding information from the user's portable terminal 60, and the portable terminal 60 that receives the request acquires the vehicle holding information from the vehicle 10 and transmits it to the system control device 30. It may be configured to be able to. Moreover, when acquiring vehicle holding information directly from the vehicle 10, you may acquire by methods other than the method acquired via the relay apparatus 11 like the said embodiment. Moreover, you may acquire vehicle holding information not only by wired communication but by radio | wireless communication. For example, the vehicle holding information may be acquired from the vehicle 10 wirelessly.

  (2) The building 1 may be provided with power storage means for storing the power received from the battery 40 of the vehicle 10. Then, for example, battery power may be taken from the vehicle 10 in a certain time zone and stored in the power storage means, and the stored power may be supplied to the load groups 26 and 27 in another time zone. .

  (3) It is not essential to provide the power supply / reception stand 7 for each parking section. For example, a simple facility (for example, an outlet or a connection cable) for electrically connecting the high-voltage connector 43 for charging of the vehicle 10 and the power supply / reception switching device 5 to the parking section. May be provided).

  (4) The electrical connection method between the outside of the vehicle 10 and the battery 40 is not limited to wired connection via the connector 13. For example, a configuration (an example of a vehicle connection unit of the present invention) capable of supplying power to each other in a contactless manner on the vehicle side and the ground side may be provided so that power can be transmitted and received without contact. As a specific method of such a contactless power supply system, for example, an electromagnetic induction method, a resonance method, a radio wave reception method, or the like can be employed.

  (5) In the second embodiment, whether or not the system side purchases electric power from the vehicle 10 may be determined by comparing the electric charge with the electric power selling price Es of each vehicle. For example, when there are a certain number of vehicles 10 whose electric power selling price Es is lower than a current price by a certain amount or more regardless of the time zone, power may be purchased from the certain number of vehicles 10 or more. Good.

  (6) The facility on the ground side that receives power and feeds power with the parked vehicle 10 may be a facility other than the building 1. Moreover, it is not limited to one building, but may be an aggregate including a plurality of buildings and other facilities. The present invention can be applied to all types of facilities having load facilities that consume power. Then, by applying the present invention, the facility or the like receives power (borrowing or purchasing power) from the vehicle as necessary, or conversely supplies power (returning power or selling power) from the facility or the like to the vehicle. Can be.

  (7) The load that receives battery power and operates with the battery power is not limited to the load groups 26 and 27 of the above-described embodiment. At least a part of all electric loads provided inside and outside the building 1 can be operated with battery power.

  (8) The charging power may be generated using a configuration other than the AC / DC converter 16 in the power supply / reception switching device 5. Further, the charging power may be generated without using the AC power from the commercial AC system 100. For example, a generator may be provided, and charging power may be generated by the generator and supplied to the vehicle 10.

  (9) In addition, the functions of one component in the above embodiment may be distributed as a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, at least a part of the configuration of the above embodiment may be replaced with a known configuration having the same function. Moreover, you may abbreviate | omit a part of structure of the said embodiment. In addition, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other embodiment. In addition, all the aspects included in the technical idea specified only by the wording described in the claim are embodiment of this invention.

  (10) In addition to the power supply / reception system described above, each component constituting the power supply / reception system, a program for causing a computer to function as each component of the power supply / reception system, a medium storing the program, and the power supply / reception system The present invention can also be realized in various forms such as various methods used in the above.

[Technical idea grasped from the embodiment]
At least the following technical ideas can be understood from the various embodiments detailed above.
[1] A battery that is provided in a specific parking area where a plurality of vehicles can be parked and can be electrically connected to the parked vehicle in the parking area and has in the parked vehicle A plurality of vehicle connections configured to be able to send and receive power from outside;
A power receiving target determining unit that determines at least one of the vehicles connected to the vehicle connecting unit as a power receiving target vehicle that is a target vehicle that receives power of the battery from the battery;
A battery power receiving unit that receives power of the battery from the power receiving target vehicle determined by the power receiving target determining unit in a specific power receiving period;
A charging power output unit that outputs charging power for charging the battery to the power receiving target vehicle after the end of the power receiving period;
A vehicle power management apparatus comprising:

The battery power receiving unit is a component that receives battery power output from a power receiving target vehicle. The charging power output unit is for charging the battery to the power receiving target vehicle after the battery power receiving unit finishes receiving the battery power (that is, after the external output of the battery power from the power receiving target vehicle is finished). It is the component which outputs the electric power of. In the embodiment, the parking lot 3 (specifically, each parking section in the parking lot 3) corresponds to an example of the parking area, and the power supply / reception switching device 5 and the power distribution device 21 are the battery power receiving units described above. It corresponds to an example, and the power supply / reception switching device 5 also corresponds to an example of the charging power output unit.
[2] In the vehicle power management device of [1],
Load power configured to receive AC power from an external commercial AC system, generate power for operating the electrical load based on the received AC power, and output the generated power to the electrical load An output section;
A load power generator configured to generate power for operation of the electrical load based on the power of the battery received by the battery power receiver;
With
The load power output unit outputs at least one of the power generated based on the AC power and the power generated by the load power generation unit to the electric load, and at least part of the power reception period, A vehicle power management apparatus configured to output at least the power generated by the load power generation unit to the electric load.

The load power output unit outputs AC power from the system as it is (without voltage conversion, phase conversion, frequency conversion, AC / DC conversion, etc.) to the electric load (if there are multiple electric loads, it is distributed to each) Alternatively, AC power from the system may be stepped down or AC / DC converted and output to the electric load according to the specifications of the electric load. The same applies to how the power generated by the load power generation unit is processed and output to the electrical load. In addition, it is possible to appropriately determine what kind of power the load power generation unit generates based on the received battery power (such as voltage, current, or alternating current or direct current). In the above embodiment, the power distribution circuit 22 and the power distribution circuit 24 correspond to an example of the load power output unit, and the DC / AC converter 23 corresponds to an example of the load power generation unit.
[3] In the vehicle power management device of [2],
The load power output unit is configured to output both the power generated based on the AC power and the power generated by the load power generation unit to the electric load in at least a part of the power reception period. A vehicle power management apparatus characterized by the above.
[4] In the vehicle power management device according to any one of [1] to [3],
For AC power received from the commercial AC system, different power usage charges are set for each of a plurality of time zones in a day,
At least a part of the power reception period is included in a time zone in which the power usage fee is highest among the plurality of time zones.

In the above embodiment, the electricity charge corresponds to an example of the above power usage fee, and the peak time zone corresponds to an example of a time zone where the above power usage fee is the highest.
[5] A battery that is provided in a specific parking area where a plurality of vehicles can be parked and can be electrically connected to the parked vehicle in the parking area and has in the parked vehicle A plurality of vehicle connections configured to be able to send and receive power from outside;
A power receiving target determining unit that determines at least one of the vehicles connected to the vehicle connecting unit as a power receiving target vehicle that is a target vehicle that receives power of the battery from the battery;
A battery power receiving unit that receives power of the battery from the power receiving target vehicle determined by the power receiving target determining unit in a specific power receiving period;
A return method determining unit that determines a monetary return method for the received power for each of the power receiving target vehicles after power reception of the battery from the power receiving target vehicle by the battery power receiving unit is completed;
With
Each of the vehicles holds power value information indicating the monetary value of the power of the battery,
When the vehicle is connected to each of the plurality of vehicle connection units, the power reception target determination unit uses a specific determination method based on the power value information held in each of the connected vehicles. The power receiving target vehicle is determined. A vehicle power management apparatus, characterized in that:

The monetary return method is a method for performing a monetary return for receiving battery power (that is, providing battery power) to a user of a power receiving target vehicle. In the embodiment described above, the process of S615 in FIG. 14 corresponds to an example of the process of the return method determination unit, and the power selling price Es corresponds to an example of the power value information.
[6] In the vehicle power management device of [5],
The vehicle power management apparatus according to claim 1, wherein the determination method is to determine a predetermined number as the power receiving target vehicle in ascending order of the monetary value indicated by the power value information.

  DESCRIPTION OF SYMBOLS 1 ... Building, 3 ... Parking lot, 5 ... Power supply / reception switching apparatus, 7 ... Power supply / reception stand, 8 ... Vehicle entrance / exit, 9 ... Data relay part, 10 ... Vehicle, 11 ... Relay apparatus, 12 ... Connection cable, 12a, 43a ... power line, 12b, 43b ... communication line, 13 ... connector, 14 ... input / output unit, 14a, 65 ... input unit, 14b, 66 ... display unit, 14c, 64 ... non-contact communication unit, 15 ... system disconnection switch, 16 DESCRIPTION OF SYMBOLS ... AC / DC converter, 17 ... Power feeding path switch, 18 ... Power receiving path switch, 21 ... Power distribution device, 22 ... System distribution circuit, 23 ... DC / AC converter, 24 ... Distribution circuit, 26 ... AC100V load group, 27 ... AC200V load group, 28, 29 ... Power sensor, 30 ... System controller, 31 ... System controller, 32 ... System storage, 40 ... Battery, 41 ... Battery unit, 43 ... Electric high voltage connector, 45 ... inverter, 46 ... motor, 47 ... vehicle control unit, 48 ... wireless communication device, 49 ... external power supply / reception switch, 51 ... vehicle control unit, 52 ... vehicle storage unit, 60 ... portable terminal, 61 Terminal control unit 62 Terminal storage unit 63 Wireless communication unit 100 Commercial AC system

Claims (3)

A plurality of vehicle connection parts configured to be able to be electrically connected to a vehicle having a battery and to exchange power from the outside with respect to the battery while being connected to the vehicle;
The battery connected to the vehicle connection unit receives power from the battery via the vehicle connection unit, and generates power for operating the load based on the received battery power to the load. A power receiving unit configured to be capable of outputting;
A charging power output unit configured to be able to output charging power for charging the battery to the vehicle connected to the vehicle connecting unit via the vehicle connecting unit;
A power receiving target determining unit that determines at least one of the vehicles connected to the vehicle connecting unit as a power receiving target vehicle that is a target vehicle that receives power from the battery;
A power receiving instruction unit that instructs the power receiving unit to receive power of the battery from the power receiving target vehicle determined by the power receiving target determining unit in a specific power receiving period;
A charging instruction unit that instructs the charging power output unit to output the charging power to the power receiving target vehicle after the end of the power receiving period;
A vehicle power management apparatus comprising: The vehicle power management device according to claim 1,
A remaining amount information acquisition unit for acquiring remaining amount information indicating a remaining amount of electric power charged in the battery from the vehicle connected to the vehicle connection unit;
The power receiving target determining unit, based on the remaining amount information acquired by the remaining amount information acquiring unit, the remaining amount among the vehicles connected to the vehicle connecting unit satisfies a specific remaining amount condition A vehicle power management apparatus, wherein a vehicle is determined as the power receiving target vehicle. The vehicle power management device according to claim 1 or 2,
A release time information acquisition unit for acquiring release time information indicating a time at which the connection with the vehicle connection unit is released from the vehicle connected to the vehicle connection unit;
The power receiving target determining unit, based on the cancellation time information acquired by the cancellation time information acquisition unit, indicates that the time to be canceled among the vehicles connected to the vehicle connection unit is from the end of the power reception period. A vehicle power management apparatus, wherein a vehicle that is a time at which a specified time or more has elapsed is determined as the power receiving target vehicle.

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