JP5673161B2 - Battery device, power supply control device and program, charge control device and program - Google Patents

Description

  The present technology relates to a technology for controlling charge / discharge of a battery.

  Currently, in Japan, it is said that there is a transmission loss of about 400 kilowatt hours (kWh) or more per year. As an effort to reduce this transmission loss, the introduction of distributed power generation is being promoted. Distributed power generation generates power near a place where electric energy is used, so transmission loss due to long-distance power transmission can be reduced. However, a power generation method using renewable energy such as solar power generation used in distributed power generation has a problem that power supply tends to become unstable because it is affected by natural phenomena.

  Therefore, it has been proposed to use the power of a battery device mounted on a movable electric vehicle as a means for leveling unstable power supply of power generated by renewable energy.

  In addition, electric power companies try to secure a momentary reserve in preparation for a sudden increase in demand for power, but it has been pointed out that the increase in cost and the burden on the environment is due to this momentary reserve. . It has been proposed to use the electric power of the battery device mounted on the movable electric vehicle as an alternative to securing the instantaneous reserve capacity by the electric power company.

  Conventionally, there are the following techniques for supplying electric power from an electric vehicle. Specifically, the electric power supply from the electric vehicle to the house and the electric power supply from the home power supply of the house to the electric vehicle can both be performed, and the electric power demand is leveled. However, this technology assumes the exchange of electric power between the electric vehicle and the home, and other facilities (such as apartment buildings such as condominiums, stores, public facilities, etc.) that have more power demand than homes. However, it is not considered to supply power.

Japanese Patent Laid-Open No. 2001-8380

  Accordingly, an object of the present technology is, in one aspect, to provide a technology for appropriately using a battery device as a distributed power source.

  The battery device according to the first aspect of the present embodiment includes (A) a plurality of power storage units, and (B) a data storage unit that stores data related to a purchase price per unit power amount for each of the plurality of power storage units. Have

  The power supply control device according to the second aspect of the present embodiment includes (C) a receiving unit that receives data of a unit price of reward obtained by supplying power from a battery device from a power supply destination device; D) From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, specify the power storage unit whose purchase price per unit power amount is lower than the unit price of the reward. And a power supply control unit that controls the battery device so that power is supplied from the power storage unit to the power supply destination device.

  The charging control device according to the third aspect of the present embodiment includes (E) a receiving unit that receives data on a unit price of power to be charged in a battery device from a power supply device, and (F) a battery device. From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included, the power storage unit closest to the unit price of power to be charged is the purchase price per unit power amount among the plurality of power storage units And a charge control unit that controls the battery device so as to charge the power storage unit from the power supply source device.

  The battery device can be appropriately used as a distributed power source.

FIG. 1 is a functional block diagram of the electric vehicle according to the present embodiment. FIG. 2 is a configuration diagram of the battery according to the present embodiment. FIG. 3 is a functional block diagram of the power supply apparatus according to the present embodiment. FIG. 4 is a functional block diagram of the demand side device according to the present embodiment. FIG. 5 is a diagram illustrating a relationship between the electric vehicle and the power feeding device in the present embodiment. FIG. 6 is a diagram showing the relationship between the electric vehicle and the demand side device in the present embodiment. FIG. 7 is a diagram illustrating an example of data stored in the user data storage unit. FIG. 8 is a diagram illustrating an example of data stored in the use facility DB. FIG. 9 is a diagram illustrating an example of data stored in the fuel consumption DB. FIG. 10 is a diagram illustrating an example of data stored in the battery DB. FIG. 11 is a diagram illustrating an example of data stored in the station data storage unit. FIG. 12 is a diagram illustrating an example of data stored in customer data. FIG. 13 is a diagram illustrating an example of data stored in the facility data storage unit. FIG. 14 is a diagram illustrating an example of data stored in the facility data storage unit. FIG. 15 is a diagram illustrating a processing flow of processing performed at the time of charging. FIG. 16 is a diagram illustrating a processing flow of processing performed at the time of charging. FIG. 17 is a diagram illustrating a processing flow of processing performed during charging. FIG. 18 is a diagram illustrating an example of a display screen at the end of charging. FIG. 19 is a diagram illustrating a processing flow of processing performed during power feeding. FIG. 20 is a diagram illustrating a processing flow of registration processing. FIG. 21 is a diagram illustrating a processing flow of consumption calculation processing. FIG. 22 is a diagram illustrating a processing flow of processing performed during power feeding. FIG. 23 is a diagram illustrating a processing flow of processing performed during power feeding. FIG. 24 is a diagram illustrating a processing flow of processing performed during power feeding. FIG. 25 is a diagram illustrating an example of data stored in the grant incentive DB. FIG. 26 is a diagram illustrating an example of data stored in the acquisition incentive DB. FIG. 27 is a diagram illustrating an example of a display screen at the end of power feeding. FIG. 28 is a diagram illustrating the relationship between the number of times of charging and the purchase price. FIG. 29 is a diagram for explaining that power is preferentially supplied from a battery group with a low purchase unit price.

  FIG. 1 shows a functional block diagram of an electric vehicle 1 according to the present embodiment. The electric vehicle 1 includes a power supply control unit 121 including a determination unit 101 and a control unit 102, a charge control unit 103, a charge / discharge unit 106, a battery 105 including battery groups A to E, and a battery database (DB) 104. Battery device 120, communication unit 107, data management unit 108, acquisition incentive DB 109, use facility DB 110, user data storage unit 111, fuel consumption DB 112, navigation system 122 including map DB 113, and output unit 123 Have In FIG. 1, the number of battery groups is five, but the number is not limited.

  The determination unit 101 uses the data stored in the battery DB 104 and the fuel consumption DB 112 to perform processing for determining a battery group to be supplied with power, and instructs the control unit 102 to control power supply. The control unit 102 controls the charging / discharging unit 106 in accordance with an instruction from the determination unit 101. The charging control unit 103 performs processing for determining a battery group to be charged using data stored in the battery DB 104 and instructs the charging / discharging unit 106 to perform charging. The charging / discharging unit 106 charges the battery 105 from another device or supplies power from the battery 105 to the other device. The navigation system 122 performs processing for calculating the distance traveled by the electric vehicle 1 in accordance with an instruction from the power supply control unit 121. The communication unit 107 performs processing for transmitting / receiving data to / from other devices. The data management unit 108 manages data stored in the acquisition incentive DB 109, the use facility DB 110, and the user data storage unit 111. The output unit 123 displays the received billing data and acquisition incentive data on a display unit (not shown).

  FIG. 2 shows a configuration diagram of battery 105 according to the present embodiment. The battery 105 is configured such that battery groups in which cell batteries are connected in series are connected in parallel. The charging / discharging unit 106 switches the battery group to be charged and discharged by switching the switches 21 and 22. Moreover, charging and discharging are switched by switching the switches 23 and 24. In the example of FIG. 2, the number of cell-type batteries connected in series is seven, and the number of battery groups connected in parallel is five, but the number is not limited.

  In FIG. 3, the functional block diagram of the electric power feeder 3 which concerns on this Embodiment is shown. The power supply device 3 is a device for supplying electricity to the electric vehicle 1, and is installed in, for example, an electric station or a convenience store. The power supply apparatus 3 includes a power supply unit 31, a battery 32, a communication unit 33, a data management unit 34, a station data storage unit 35, and a customer data storage unit 36.

  The power supply unit 31 supplies power from the battery 32 to another device. The communication unit 33 transmits / receives data to / from other devices or instructs the power supply unit 31 to supply power. The data management unit 34 manages data stored in the station data storage unit 35 and the customer data storage unit 36.

  In FIG. 4, the functional block diagram of the demand side apparatus 5 which concerns on this Embodiment is shown. The demand side device 5 is a device installed in a facility (for example, an apartment house such as a condominium, a store, a public facility, etc.) that receives power from the electric vehicle 1. The demand side device 5 includes a charging unit 51, a battery 52, a communication unit 53, a data management unit 54, a grant incentive DB 55, a customer data storage unit 56, and a facility data storage unit 57.

  The charging unit 51 charges the battery 52 from another device. The communication unit 53 transmits / receives data to / from other devices or instructs the charging unit 51 to charge. The data management unit 54 manages data stored in the grant incentive DB 55, the customer data storage unit 56, and the facility data storage unit 57.

  In FIG. 5, the relationship between the electric vehicle 1 and the electric power feeder 3 in this Embodiment is shown. In the present embodiment, when the electric vehicle 1 arrives at the electric station or the like, the user of the electric vehicle 1 connects the power supply device 3 installed in the electric station or the like and the electric vehicle 1 with the cable 51, The battery device 120 of the electric vehicle 1 is charged from the power supply device 3.

  In FIG. 6, the relationship between the electric vehicle 1 and the demand side apparatus 5 in this Embodiment is shown. In the present embodiment, when the electric vehicle 1 arrives at the facility, the user of the electric vehicle 1 connects the electric vehicle 1 to the demand side device 5 installed in the facility with the cable 61, thereby The battery device 120 supplies power to the demand side device 5.

  FIG. 7 shows an example of data stored in the user data storage unit 111. In the example of FIG. 7, a vehicle identifier, a user name, a user address, and a credit card number are stored.

  FIG. 8 shows an example of data stored in the use facility DB 110. In the example of FIG. 8, a facility name column, a facility ID column, a member ID column, a facility address column, and an incentive column are included.

  FIG. 9 shows an example of data stored in the battery DB 104. The example in FIG. 9 includes a battery group number column, a purchase unit price column, and a remaining amount column. The purchase unit price may be set so that the unit price varies greatly depending on the charging method, such as 5 yen per 1 kwh for general charging, and 50 yen per 1 kwh for quick charging.

  FIG. 10 shows an example of data stored in the fuel consumption DB 112. In the example of FIG. 10, the fuel consumption data of the electric vehicle 1 is stored for the case of a highway and the case of a general road.

  FIG. 11 shows an example of data stored in the station data storage unit 35 in the power supply apparatus 3 shown in FIG. In the example of FIG. 11, the station name, station ID, station address, and purchase unit price data are stored.

  FIG. 12 shows an example of data stored in the customer data storage unit 36 in the power supply apparatus 3 shown in FIG. In the example of FIG. 12, a station member ID, a member address, a member name, a credit card number, and data on the last use date are stored.

  FIG. 13 shows an example of data stored in the facility data storage unit 57 in the demand side apparatus 5 shown in FIG. In the example of FIG. 13, a facility name, a facility ID, a facility address, and incentive data are stored. The incentive may be given as points that can be used in the facility, or may be given as points that can be exchanged for money.

  FIG. 14 shows an example of data stored in the customer data storage unit 56 in the demand side apparatus 5 shown in FIG. The example of FIG. 14 includes a member ID column, a member address column, a member name column, and an incentive column.

  Next, processing performed when charging the battery device 120 of the electric vehicle 1 will be described with reference to FIGS. 15 to 18. The electric vehicle 1 arrives at the electric station to charge the battery device 120. The user of the electric vehicle 1 connects the electric vehicle 1 and the power supply device 3 installed in the electric station with a cable. As a result, charging can be performed, and data can be transmitted and received between the electric vehicle 1 and the power feeding device 3.

  Then, the communication unit 107 of the electric vehicle 1 detects that the electric vehicle 1 and the power feeding device 3 are connected, and transmits a charging request to the power feeding device 3 (FIG. 15: step S1). On the other hand, the communication part 33 of the electric power feeder 3 receives a charge request from the electric vehicle 1 (step S3). Further, the communication unit 33 acquires the purchase unit price data and the station ID of the electric station from the station data storage unit 35 via the data management unit 34, and transmits them to the electric vehicle 1 (step S5).

  On the other hand, the communication unit 107 of the electric vehicle 1 receives the purchase unit price data and the station ID of the electric station from the power supply device 3 of the electric station, and stores them in a storage device such as a main memory (step S7). Then, the charging control unit 103 determines whether or not purchase unit price data that matches the purchase unit price data received in step S7 is stored in the battery DB 104 (FIG. 9) (step S9). When it is determined that the purchase unit price data matching the received purchase unit price data is stored in the battery DB 104 (step S9: Yes route), the charging control unit 103 stores the purchase unit price data in association with the purchase unit price data. The battery group number being identified is identified from the battery DB 104, and the battery group to which the battery group number is assigned is determined as the charge target group (step S11). Then, the charging / discharging unit 106 is instructed to charge the specified battery group. In step S9, the purchase unit price is the same. However, it may be determined whether the purchase unit price falls within a predetermined range. In that case, the purchase unit price is calculated again and registered again.

  On the other hand, when it is determined that the purchase unit price data that matches the purchase unit price data received in step S7 is not stored in the battery DB 104 (step S9: No route), the charging control unit 103 selects an empty battery group. The charging target group is determined (step S13). In step S13, the purchase unit price data received in step S7 is stored in association with the battery group in which the purchase unit price and remaining amount data are not stored in the battery DB 104. Then, the charging / discharging unit 106 is instructed to charge the determined charging target group.

  And the charge / discharge part 106 will switch the switch of the battery 105 so that it may charge with respect to a charge object group, if an instruction | indication is received from the charge control part 103 (step S15). In addition, a start request including the charge amount data received from the user is transmitted to the power supply apparatus 3 (step S17).

  On the other hand, the communication part 33 of the electric power feeder 3 receives a start request from the electric vehicle 1 (step S19). And if the communication part 33 instruct | indicates charge with respect to the electric power feeding part 31, the electric power feeding part 31 will start charge (step S21). The processing shifts to the processing in FIG.

  The processing after the terminal A will be described with reference to FIG. The charging / discharging unit 106 in the electric vehicle 1 determines whether the charging is finished (FIG. 16: step S23). For example, when charging for the amount of charge received from the user is completed, or when the cable is disconnected, it is determined that charging is complete. When it is determined that the charging has been completed (step S23: Yes route), the processing shifts to the processing in FIG.

  On the other hand, when it is determined that charging has not ended (step S23: No route), the charging / discharging unit 106 determines whether the charging target group is fully charged (step S25). When it is determined that the charging target group is not fully charged (step S25: No route), the process returns to step S23. On the other hand, when it is determined that the charging target group is fully charged (step S25: Yes route), the charging / discharging unit 106 ends the charging of the charging target group (step S27).

  Then, the charging control unit 103 searches the battery DB 104 (FIG. 9) and determines whether there is an empty battery group (step S29). If it is determined that there is no empty battery group (step S29: No route), the process proceeds to the process of FIG.

  On the other hand, when it is determined that there is an empty battery group (step S29: Yes route), the charging control unit 103 determines an empty battery group as a charging target group (step S31). In step S31, the purchase unit price data received in step S7 is stored in association with the battery group in which the purchase unit price and remaining amount data are not stored in the battery DB 104. Then, the charging / discharging unit 106 is instructed to charge the determined charging target group.

  Then, when receiving the instruction from the charging control unit 103, the charging / discharging unit 106 switches the switch of the battery 105 so as to charge the charging target group (step S33), and returns to the process of step S23.

  The processing after the terminals B and C will be described with reference to FIG. The communication unit 107 of the electric vehicle 1 transmits a charging end notification to the power feeding device 3 (FIG. 17: step S35). Further, the charging / discharging unit 106 releases the switch of the battery 105 (step S37). On the other hand, when the communication unit 33 of the power supply apparatus 3 receives the charge end notification from the electric vehicle 1, the communication unit 33 instructs the power supply unit 31 to end the charge. And the electric power feeding part 31 complete | finishes charge (step S39).

  And the data management part 34 calculates the charge charged to the user of the electric vehicle 1 using the charge amount and the purchase unit price data, and transmits the charging data including the calculated charge data to the electric vehicle 1 ( Step S41). On the other hand, the communication unit 107 of the electric vehicle 1 receives billing data from the power feeding device 3. Then, the output unit 123 displays the billing data received from the communication unit 107 on a display unit (not shown) (step S43).

  FIG. 18 shows an example of the display screen in step S43. In the example of FIG. 18, the amount of charge, the charge to be charged, and the payment method of the charge are displayed.

  Further, the data management unit 108 updates the remaining amount data of the charging target group in the battery DB 104 (FIG. 9) so as to increase by the amount of the current charging (step S45).

  By performing the processing as described above, it becomes possible to appropriately charge a battery device having a plurality of battery groups.

  Next, processing performed when power is supplied from the battery device 120 of the electric vehicle 1 will be described with reference to FIGS. 19 to 27. In order to supply power from the battery device 120, the electric vehicle 1 arrives at a place (hereinafter referred to as a facility) where there is a power demand, such as a store, an apartment, or a public facility. The user of the electric vehicle 1 connects the electric vehicle 1 and the demand side device 5 installed in the facility with a cable. As a result, power can be supplied and data can be transmitted and received between the electric vehicle 1 and the demand side device 5.

  Then, the communication unit 107 of the electric vehicle 1 detects that the electric vehicle 1 and the demand-side device 5 in the facility are connected, and transmits a power supply request to the demand-side device 5 (FIG. 19: Step S51). On the other hand, the communication part 53 of the demand side apparatus 5 receives the electric power feeding request from the electric vehicle 1 (step S53). Further, the communication unit 53 acquires the facility name, facility ID, facility address, and incentive data from the facility data storage unit 57 via the data management unit 54, and transmits the acquired data to the electric vehicle 1 (step S55).

  On the other hand, the communication unit 107 of the electric vehicle 1 receives the facility name, facility ID, facility address, and incentive data from the demand side device 5 in the facility, and stores the data in a storage device such as a main memory (step S57). Then, the electric vehicle 1 performs a registration process (step S59). The registration process will be described with reference to FIG.

  First, the data management unit 108 in the electric vehicle 1 determines whether the facility ID received in step S57 is registered in the use facility DB 110 (FIG. 8) (FIG. 20: step S121). When it is determined that the facility ID received in step S57 is registered in the use facility DB 110 (step S121: Yes route), the process proceeds to step S137.

  On the other hand, when it is determined that the facility ID received in step S57 is not registered in the use facility DB 110 (step S121: No route), the communication unit 107 transmits the user name and address data via the data management unit 108. An ID issuance request that is acquired from the user data storage unit 111 and includes data of the user name and address is transmitted to the demand side device 5 (step S123). On the other hand, the communication unit 53 of the demand side device 5 receives the ID issue request from the electric vehicle 1 and stores it in a storage device such as a main memory (step S125). Then, the data management unit 54 issues a member ID (step S127). In addition, the communication unit 53 transmits the member ID to the electric vehicle 1 (step S129). Further, the data management unit 54 registers the address and name data received in step S125 and the member ID in the customer data storage unit 56 (FIG. 14) (step S131).

  And the communication part 107 in the electric vehicle 1 receives member ID from the demand side apparatus 5 in a facility, and stores it in storage devices, such as a main memory (step S133). The data management unit 108 registers the facility name, facility ID, and facility address data received in step S57 and the member ID received in step S133 in the use facility DB 110 (FIG. 8) (step S135).

  On the other hand, when it is determined that the facility ID received in step S57 is registered in the use facility DB 110 (step S121: Yes route), the communication unit 107 obtains the member ID from the use facility DB 110 via the data management unit 108. It acquires and transmits to the demand side apparatus 5 (step S137). And the demand side apparatus 5 receives member ID from the electric vehicle 1, and stores it in memory | storage devices, such as a main memory (step S139). Thereby, it can confirm that it is a member of a facility.

  By performing the processing as described above, the facility can give incentives only to registered members.

  Returning to the description of FIG. 19, the determination unit 101 in the power supply control unit 121 determines that the battery group associated with a purchase unit price that is lower than the incentive received in step S <b> 57 (hereinafter referred to as incentive provided by the facility) is the battery DB 104. It is determined whether it is registered in (FIG. 9) (step S61). When it is determined that a battery group associated with a purchase unit price that is cheaper than the incentive provided by the facility is not registered in the battery DB 104 (step S61: No route), the communication unit 107 sends a notification indicating power supply suspension. It transmits to the demand side apparatus 5 (step S63). And the communication part 107 of the demand side apparatus 5 receives the notification showing electric power feeding cancellation from the electric vehicle 1 (step S65). Thereby, power feeding is stopped.

  On the other hand, when it is determined that a battery group associated with a purchase unit price cheaper than the incentive provided by the facility is registered in the battery DB 104 (step S61: Yes route), the determination unit 101 calculates the power consumption. Processing is performed (step S67). The power consumption calculation process will be described with reference to FIG.

  First, the determination unit 101 determines whether a destination is set in the navigation system 122 (FIG. 21: step S151). When the destination is not set (step S151: No route), the determination unit 101 determines the home as the next charging place, and acquires home position data from the map DB 113 of the navigation system 122 (step S153).

  On the other hand, when it is determined that the destination is set (step S151: Yes route), the determination unit 101 determines whether there is a charging facility (for example, a facility having a power feeding device) at the destination (step S155). When it is determined that there is no charging facility at the destination (step S155: No route), the determination unit 101 determines the electric station in front of the destination as the next charging location, and the front of the destination from the map DB 113 of the navigation system 122. The position data of the electric station is acquired (step S157). In addition, it is preferable that the electric station before the destination is on the route to the destination.

  On the other hand, when it is determined that there is a charging facility at the destination (step S155: Yes route), the determination unit 101 determines the destination as the next charging location, and the location data of the destination from the map DB 113 of the navigation system 122. Is acquired (step S159).

  Then, the determination unit 101 determines the distance and route data from the current point to the next charging place determined in step S153, S157, or S159 (for example, the distance of the highway that travels until the next charging place is reached). Etc.) from the navigation system 122 (step S161). Then, the determination unit 101 uses the fuel consumption data stored in the fuel consumption DB 112 (FIG. 10) and the distance and route data from the current point to the next charging point until the next charging point is reached. The amount of power consumed is calculated (step S163). Further, the determination unit 101 calculates a power consumption amount by adding a predetermined power amount to the calculated power amount, and stores it in a storage device such as a main memory (step S165). Then, the process returns to the original process.

  By performing the processing as described above, it is possible to appropriately calculate the amount of electric power consumed before reaching the next charging place.

  Returning to the description of FIG. 19, the determination unit 101 calculates the total remaining amount of the battery 105 by summing the remaining amount data of the battery DB 104 (FIG. 9), and determines whether the total remaining amount is greater than or equal to the power consumption amount. (Step S69). When it is determined that the total remaining amount is not equal to or greater than the power consumption (step S69: No route), the next charging location cannot be reached, and the process proceeds to step S63.

  On the other hand, when it is determined that the total remaining amount is greater than or equal to the power consumption (step S69: Yes route), the processing shifts to the processing in FIG.

  The processing after the terminals D and E will be described with reference to FIG. The determination unit 101 sets priorities to battery groups in order from the lowest purchase unit price (FIG. 22: step S71). For example, when data as shown in FIG. 9 is stored in the battery DB 104, the battery group with the battery group number “4” has the highest priority, and the battery group with the battery group number “2” has the next priority. The priority of the battery group with the battery group number “3” is the next highest, and the priority of the battery group with the battery group number “1” is the lowest.

  Further, the determination unit 101 determines whether the total remaining amount of the battery group whose purchase unit price is higher than the incentive is larger than the power consumption (step S73). That is, it is determined whether or not it is possible to arrive at the next charging place even if power is supplied from a battery group whose purchase unit price is lower than the incentive. If it is determined that the total power amount of the battery group whose purchase unit price is higher than the incentive is smaller than the power consumption amount (step S73: No route), the process proceeds to the process of FIG.

  On the other hand, when it is determined that the total power amount of the battery group whose purchase unit price is higher than the incentive is larger than the power consumption amount (step S73: Yes route), the determination unit 101 identifies the battery group with the highest priority. (Step S75). Then, the control unit 102 instructs the charging / discharging unit 106 to supply power from the battery group identified in step S75. And the charging / discharging part 106 switches the switch of the battery 105, and supplies electric power to the demand side apparatus 5 from the said battery group (step S77).

  Then, the determination unit 101 determines whether there is a battery group with the next highest priority (step S79). If it is determined that there is a battery group with the next highest priority (step S79: Yes route), the determination unit 101 identifies the battery group with the next highest priority (step S81), and returns to the process of step S77. . If it is determined that there is no battery group with the next highest priority (step S79: No route), the communication unit 107 transmits a notification indicating the end of power supply to the demand side device 5 (step S83). Further, the data management unit 108 updates the remaining amount data in the battery DB 104 so as to be reduced by the amount of power supplied (step S85).

  On the other hand, the communication part 53 of the demand side apparatus 5 receives the notification showing completion | finish of electric power feeding (step S87). And the charging part 51 complete | finishes the electric power feeding from the electric vehicle 1, and a process transfers to the process of FIG.

  Here, the processing after the terminal F will be described with reference to FIG. First, the determination unit 101 calculates a chargeable amount that is a value obtained by subtracting the power consumption from the total remaining amount (FIG. 23: step 89). Further, the determination unit 101 identifies a battery group having the highest priority among unprocessed battery groups (hereinafter referred to as a power supply target battery group) (step S91).

  Then, the determination unit 101 determines whether the chargeable amount is larger than the remaining amount of the battery group to be fed (step S93). When it is determined that the chargeable amount is larger than the remaining amount of the battery group to be fed (step S93: Yes route), the control unit 102 instructs the charging / discharging unit 106 to feed power from the battery group to be fed. To do. Then, the charging / discharging unit 106 supplies power to the demand side device 5 from the battery group to be supplied (step S95).

  Then, the determination unit 101 determines whether there is an unprocessed battery group (step S97). When it is determined that there is no unprocessed battery group (step S97: No route), the process proceeds to step S103. On the other hand, when it is determined that there is an unprocessed battery group (step S97: Yes route), the determination unit 101 newly sets a value obtained by subtracting the amount of power supplied in step S95 from the chargeable amount as a chargeable amount. (Step S99), the process returns to step S91.

  On the other hand, when it is determined that the chargeable amount is smaller than the remaining amount of the battery group to be supplied (step S93: Yes route), the control unit 102 demands the chargeable amount from the battery group to be supplied. Power is supplied to the device 5 (step S101). In addition, the communication unit 107 transmits a power supply end notification to the demand side device 5 (step S103). Furthermore, the data management unit 108 updates the remaining amount data in the battery DB 104 so as to reduce the amount of power supplied in step S95 or S101 (step S105). The processing shifts to the processing in FIG.

  The processing after the terminals G and H will be described with reference to FIG. First, the data management unit 54 of the demand side device 5 calculates an acquired incentive from the incentive data stored in the facility data storage unit 57 (FIG. 13) and the amount of power supplied to the battery 52, and The data is stored in a storage device such as a memory (step S107). And the communication part 53 transmits the data of acquisition incentive to the electric vehicle 1 (step S109). In addition, the data management unit 54 registers the acquired incentive data in the grant incentive DB 55 in association with the member ID issued in step S127 or the member ID received in step S139 (step S111).

  FIG. 25 shows an example of data stored in the grant incentive DB 55. In the example of FIG. 25, the date, member ID, and grant incentive data are stored. The grant incentive is the same as the acquisition incentive.

  And the communication part 107 of the electric vehicle 1 receives the data of the acquired incentive from the demand side apparatus 5, and stores it in storage devices, such as a main memory (step S113). Then, the data management unit 108 registers the acquired incentive data and the accumulated incentive data in the acquired incentive DB 109 in association with the facility ID received in step S57 (step S115). The cumulative incentive data is the total of incentives acquired so far by the user of the electric vehicle 1.

  FIG. 26 shows an example of data stored in the acquisition incentive DB 109. In the example of FIG. 26, the date, the facility ID, the acquired incentive data, and the cumulative incentive data are stored.

  And the output part 123 displays the display data containing the data of the acquisition incentive received in step S113 on a display part (not shown) (step S117).

  FIG. 27 shows an example of the display screen in step S117. In the example of FIG. 27, a facility name, a power supply amount, and acquired incentive data are displayed.

  By performing the processing as described above, it is possible to give the user an incentive to obtain points and prompt the user to perform power supply.

  In general, the purchase unit price is set lower in a charging method with a smaller load on the battery, such as normal charging. On the other hand, the purchase unit price is set higher in a charging method that places a heavy load on the battery, such as rapid charging. On the other hand, normal charging can be performed many times as compared with rapid charging. This relationship is shown in FIG. In FIG. 28, the vertical axis represents the number of times of charging, and the horizontal axis represents the purchase unit price. As shown in FIG. 28, the relationship between the number of times of charging and the purchase price often holds an inversely proportional relationship.

  In the present embodiment, since such a relationship is considered, power is supplied preferentially from a battery group charged by a charging method with a low unit price (that is, a low load on the battery). A specific example will be described with reference to FIG. In FIG. 29, group A is a battery group with a low purchase unit price, and group B is a battery group with a high purchase unit price. In the example of FIG. 29, power is preferentially supplied from a battery group with a low purchase unit price. Therefore, normal charging with a small load on the battery is performed three times, but rapid charging with a large load on the battery is performed. Is about once. As a result, it is possible to avoid the concentration of loads on a specific battery group and extend the life of the entire battery.

  Although one embodiment of the present technology has been described above, the present technology is not limited to this. For example, the functional block diagrams of the electric vehicle 1, the power feeding device 3, and the demand side device 5 described above do not necessarily correspond to an actual program module configuration.

  Further, the configuration of each table described above is an example, and the configuration as described above is not necessarily required. Further, in the processing flow, the processing order can be changed if the processing result does not change. Further, it may be executed in parallel.

  In the example described above, the purchase unit price itself is managed in the battery DB 104. However, a price range may be assigned to each battery group.

  In the example described above, an example is shown in which charging is performed on a battery group with a matching purchase unit price. Even if there is no battery group with a matching purchase unit price, the battery with the closest purchase unit price is the same. You may make it charge with respect to a group. At that time, the average purchase unit price may be recalculated by using the charge amount and the purchase unit price data at the time of charging, and the remaining battery group purchase price data and the purchase unit price data.

  Further, in the example described above, the battery groups are properly used according to the purchase unit price. However, the battery groups may be properly used according to the charging place. For example, it may be possible to share roles such as quick charging facilities for electric stations that only charge the service, medium-speed charging facilities for facilities such as movie theaters, and general charging facilities for facilities that park for long periods of time. It is.

  In the example described above, the battery DB 104 is provided in the battery device 120, but may be provided in a portion other than the battery device 120 in the electric vehicle 1.

  The embodiments of the present technology described above are summarized as follows.

  The battery device according to the first aspect of the present embodiment includes (A) a plurality of power storage units, and (B) a data storage unit that stores data related to a purchase price per unit power amount for each of the plurality of power storage units. Have

  With such a configuration, the power storage unit to be charged and fed can be determined from the viewpoint of the purchase price per unit amount of power. As a result, the battery device can be appropriately used as a distributed power source.

  The power supply control device according to the second aspect of the present embodiment includes (C) a receiving unit that receives data of a unit price of reward obtained by supplying power from a battery device from a power supply destination device; D) From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, specify the power storage unit whose purchase price per unit power amount is lower than the unit price of the reward. And a power supply control unit that controls the battery device so that power is supplied from the power storage unit to the power supply destination device.

  In this way, it is possible to give the user an incentive to obtain a reward and prompt the user to perform power supply. In general, a charging method with a lower purchase price per unit electric energy (for example, normal charging) has a lower load on the power storage unit, and a charging method with a higher purchase price per unit electric energy (for example, quick charging) stores more electricity. The load on the part is large. Therefore, as described above, the power storage unit using the charging method with a small load is used preferentially. As a result, the load on the power storage unit due to repeated charging and discharging is leveled as a whole, and the life of the battery device can be extended.

  In addition, the data storage unit described above may further store power amount data of the power storage unit for each of the plurality of power storage units. Then, the power supply control unit described above (d1) uses the data stored in the data storage unit to calculate the power amount of the power storage unit whose purchase price per unit power amount is higher than the unit price of the reward. A determination unit that calculates a power amount of 1 and calculates a power consumption amount that is consumed before reaching a place to be charged next, and determines whether the first power amount is larger than the power consumption amount; ) When it is determined that the first power amount is larger than the power consumption amount, a control unit that controls the battery device so that power is supplied from the power storage unit whose purchase price per unit power amount is lower than the unit price of the reward; You may make it have. If it does in this way, after confirming that the electric power used by driving | running | working will not run short, it becomes possible to supply electric power.

  Further, when it is determined that the first power amount is less than the power consumption amount, the determination unit described above calculates the total power amount of the battery device using the data stored in the data storage unit. The amount of power that can be supplied is calculated by subtracting the amount of power consumption from the total amount of power, and the purchase price per unit power amount until the control unit described above reaches the amount of power that can be supplied. However, the battery device may be controlled so that power is supplied in order from the cheaper power storage unit. When power is supplied from a power storage unit whose purchase price per unit power amount is lower than the unit price of the reward, there is a case where the power used for traveling is insufficient. Even in such a case, if power is supplied as much as possible as described above, it is possible to prevent the vehicle from running out of trouble.

  The charging control device according to the third aspect of the present embodiment includes (E) a receiving unit that receives data on a unit price of power to be charged in a battery device from a power supply device, and (F) a battery device. From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included, the power storage unit closest to the unit price of power to be charged is the purchase price per unit power amount among the plurality of power storage units And a charge control unit that controls the battery device so as to charge the power storage unit from the power supply source device.

  With such a configuration, an appropriate power storage unit can be charged. In general, the load on the power storage unit at the time of charging increases as the charging method with a higher purchase price per unit amount of power increases, and decreases as the charging method decreases. Therefore, a power storage unit with a low purchase price per unit electric energy is charged by a charging method with a small load during charging, and a power storage unit with a high purchase price per unit electric energy has a load during charging. Charging will be performed with a large charging method.

  In the power supply control method according to the fourth aspect of the present embodiment, (G) a step of receiving data of a unit price of reward obtained by supplying power from a battery device from a power supply destination device; ) From the data storage unit that stores the data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the power storage unit whose purchase price per unit power amount is lower than the unit price of the reward is specified, And a step of controlling the battery device so as to supply power to the power supply device from the power storage unit.

  The charging control method according to the fifth aspect of the present embodiment includes (I) a step of receiving data on a purchase unit price of power to be charged in the battery device from the power supply device, and (J) the battery device. From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units, the power storage unit that has the purchase price per unit power amount closest to the unit price of power to be charged among the plurality of power storage units And controlling the battery device to charge the power storage unit from the power supply device.

  A program for causing a computer to perform the processing according to the above method can be created. The program can be a computer-readable storage medium such as a flexible disk, a CD-ROM, a magneto-optical disk, a semiconductor memory, or a hard disk. It is stored in a storage device. The intermediate processing result is temporarily stored in a storage device such as a main memory. In addition, as hardware for performing processing by the above method, a computer device having at least a CPU (Central Processing Unit) and a memory can be used.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1)
A plurality of power storage units;
A data storage unit for storing data relating to a purchase price per unit electric energy for each of the plurality of power storage units;
A battery device.

(Appendix 2)
A receiving unit that receives data of a unit price of reward obtained by supplying power from the battery device from a power supply destination device;
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the power storage unit is specified whose purchase price per unit power amount is lower than the unit price of the reward A power supply control unit that controls the battery device so that power is supplied from the power storage unit to the device to which the power is supplied;
A power supply control device.

(Appendix 3)
The data storage unit further stores data on the amount of power of the power storage unit for each of the plurality of power storage units,
The power supply control unit
Using the data stored in the data storage unit to calculate a first power amount that is the sum of the power amount of the power storage unit whose purchase price per unit power amount is higher than the unit price of the reward, and then charging A determination unit that calculates the amount of power consumed before reaching a place to perform the determination, and determines whether the first power amount is greater than the power consumption amount;
When it is determined that the first power amount is greater than the power consumption amount, the battery device is controlled so that power is supplied from a power storage unit whose purchase price per unit power amount is lower than the unit price of the reward. A control unit;
The power feeding control device according to claim 2, further comprising:

(Appendix 4)
When it is determined that the first power amount is less than the power consumption amount, the determination unit calculates the total power amount of the battery device using data stored in the data storage unit. , Calculate the amount of power that can be supplied by subtracting the amount of power consumption from the total amount of power,
The control unit is
The power supply control device according to appendix 3, wherein the battery device is controlled so that power is supplied in order from a power storage unit with a lower purchase price per unit power amount until the power supply amount reaches the power amount that can be supplied.

(Appendix 5)
A receiving unit that receives data on a unit price of power to be charged in the battery device from a power supply device; and
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the purchase price per unit power amount among the plurality of power storage units is the amount of power to be charged. A power control unit that identifies the power storage unit closest to the purchase unit price, and controls the battery device to charge the power storage unit from the power supply source device;
A charge control device.

(Appendix 6)
Receiving data of unit price of reward obtained by supplying power from the battery device from a device to which power is supplied; and
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the power storage unit is specified whose purchase price per unit power amount is lower than the unit price of the reward A power supply control step of controlling the battery device so that power is supplied from the power storage unit to the device to which the power is supplied;
Is a power supply control program for causing a computer to execute.

(Appendix 7)
The data storage unit further stores data on the amount of power of the power storage unit for each of the plurality of power storage units,
The power supply control step includes:
Using the data stored in the data storage unit to calculate a first power amount that is the sum of the power amount of the power storage unit whose purchase price per unit power amount is higher than the unit price of the reward, and then charging A determination step of calculating a power consumption amount to reach the place where the first power consumption is performed, and determining whether the first power amount is greater than the power consumption amount;
When it is determined that the first power amount is greater than the power consumption amount, the battery device is controlled so that power is supplied from a power storage unit whose purchase price per unit power amount is lower than the unit price of the reward. Control steps;
The power supply control program according to appendix 6, including

(Appendix 8)
The determination step includes
When it is determined that the first power amount is less than the power consumption amount, the total power amount of the battery device is calculated using the data stored in the data storage unit, and the total power amount Calculating the amount of power that can be supplied by subtracting the amount of power consumption from
The control step comprises:
The power supply control device according to appendix 7, including a step of controlling the battery device so that power is supplied in order from a power storage unit with a low purchase price per unit power amount until the power supply amount reaches the power amount that can be supplied.

(Appendix 9)
Receiving data on the unit price of power for charging the battery device from the power supply device; and
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the purchase price per unit power amount among the plurality of power storage units is the amount of power to be charged. Identifying the power storage unit closest to the unit price of purchase, and controlling the battery device to charge the power storage unit from the power supply source device;
Charge control program for causing a computer to execute.

DESCRIPTION OF SYMBOLS 1 Electric vehicle 101 Judgment part 102 Control part 103 Charging control part 104 Battery DB 105 Battery 105A, B, C Battery group 106 Charging / discharging part 107 Communication part 108 Data management part 109 Acquisition incentive DB 110 Usage facility DB
111 User data storage unit 112 Fuel consumption DB
113 Map DB 120 Battery Device 121 Power Supply Control Unit 122 Navigation System 123 Output Unit 3 Power Supply Device 31 Power Supply Unit 32 Battery 33 Communication Unit 34 Data Management Unit 35 Station Data Storage Unit 36 Customer Data Storage Unit 5 Demand Side Device 51 Charging Unit 52 Battery 53 Communication Unit 54 Data Management Unit 55 Grant Incentive DB
56 Customer Data Storage Unit 57 Facility Data Storage Unit

Claims (6)

A receiving unit that receives data of a unit price of reward obtained by supplying power from the battery device from a power supply destination device;
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the power storage unit is specified whose purchase price per unit power amount is lower than the unit price of the reward A power supply control unit that controls the battery device so that power is supplied from the power storage unit to the device to which the power is supplied;
A power supply control device. The data storage unit further stores data on the amount of power of the power storage unit for each of the plurality of power storage units,
The power supply control unit
Using the data stored in the data storage unit to calculate a first power amount that is the sum of the power amount of the power storage unit whose purchase price per unit power amount is higher than the unit price of the reward, and then charging A determination unit that calculates the amount of power consumed before reaching a place to perform the determination, and determines whether the first power amount is greater than the power consumption amount;
When it is determined that the first power amount is greater than the power consumption amount, the battery device is controlled so that power is supplied from a power storage unit whose purchase price per unit power amount is lower than the unit price of the reward. A control unit;
The power supply control device according to claim 1, comprising: When it is determined that the first power amount is less than the power consumption amount, the determination unit calculates the total power amount of the battery device using data stored in the data storage unit. , Calculate the amount of power that can be supplied by subtracting the amount of power consumption from the total amount of power,
The control unit is
3. The power supply control device according to claim 2 , wherein the battery device is controlled so that power is supplied in order from a power storage unit with a lower purchase price per unit power until the amount of power supplied reaches the amount of power that can be supplied. . A receiving unit that receives data on a unit price of power to be charged in the battery device from a power supply device; and
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the purchase price per unit power amount among the plurality of power storage units is the amount of power to be charged. A power control unit that identifies the power storage unit closest to the purchase unit price, and controls the battery device to charge the power storage unit from the power supply source device;
A charge control device. Receiving data of unit price of reward obtained by supplying power from the battery device from a device to which power is supplied; and
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the power storage unit is specified whose purchase price per unit power amount is lower than the unit price of the reward Controlling the battery device so as to supply power from the power storage unit to the device to which the power is supplied;
Is a power supply control program for causing a computer to execute. Receiving data on the unit price of power for charging the battery device from the power supply device; and
From the data storage unit that stores data related to the purchase price per unit power amount for each of the plurality of power storage units included in the battery device, the purchase price per unit power amount among the plurality of power storage units is the amount of power to be charged. Identifying the power storage unit closest to the unit price of purchase, and controlling the battery device to charge the power storage unit from the power supply source device;
Charge control program for causing a computer to execute.

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