JP6901320B2 - Electricity rate calculation device, electric vehicle, electricity rate calculation method and program - Google Patents

Description

The present invention relates to an electricity rate calculation device, an electric vehicle, an electricity rate calculation method and a program.

Various tariff systems and services have been proposed from the viewpoint of promoting the spread of electric vehicles. For example, in Patent Document 1, it is assumed that one vehicle is used by a plurality of users, and a charging service station and an electric vehicle that enable billing on a user-by-user basis rather than on a vehicle-by-vehicle basis. Is disclosed.

In addition, as represented by V2H (Vehicle to Home), V2G (Vehicle to Grid), etc., efforts to utilize the amount of electric energy charged in the storage battery of an electric vehicle for purposes other than running of the electric vehicle have also been put into practical use. ing.

Japanese Patent No. 5163238

Depending on the charge system and services related to the use of electric vehicles, it is possible to grasp the purpose of consumption (discharge) of the electric energy charged in the storage battery of the electric vehicle, and the amount of electric energy consumed for purposes other than driving. It is desirable that the user be charged a separate fee.

An object of the present invention has been made in view of the above problems, and is an electricity charge calculation device and electricity that can calculate a charge to be charged to a user for the amount of electricity consumed for a purpose other than the running of an electric vehicle. To provide automobiles, electricity rate calculation methods and programs.

According to the first aspect of the present invention, the electricity charge calculation device is a calculation device for calculating the electricity charge related to the charging of the storage battery mounted on the electric vehicle, and is out of the amount of electric power discharged from the storage battery. The driving power consumption specifying unit that specifies the power used for running and the power amount obtained by subtracting the power used for running from the power discharged from the storage battery are charged to the user of the electric vehicle. It includes a user-charged power amount specifying unit to be specified.

Further, according to the second aspect of the present invention, the traveling electric energy specifying unit uses the electric energy discharged during the period when the main power supply of the electric vehicle is turned on as the electric energy used for the traveling. Specify as a quantity.

Further, according to the third aspect of the present invention, the traveling electric energy specifying unit specifies the electric energy used for the traveling based on the traveling distance of the electric vehicle.

Further, according to the fourth aspect of the present invention, the traveling electric energy specifying unit further specifies the electric energy used for the traveling based on the traveling history of the electric vehicle.

Further, according to the fifth aspect of the present invention, the electric vehicle is specified as the electric energy specified as the charge target and the charge target based on the information received from the above-mentioned electricity charge calculation device. It is provided with a notification unit that notifies the user of at least one of the billing amounts according to the amount of electric power.

Further, according to the sixth aspect of the present invention, the electric vehicle includes the above-mentioned electricity rate calculation device.

Further, according to the seventh aspect of the present invention, the electricity charge calculation method is a calculation method for calculating the electricity charge related to the charging of the storage battery mounted on the electric vehicle, and is the calculation method of the amount of electric energy discharged from the storage battery. Among them, a step of specifying the amount of electric power used for traveling and a step of specifying the amount of electric power obtained by subtracting the amount of electric power used for the traveling from the amount of electric power discharged from the storage battery as a billing target to the user of the electric vehicle. And have.

Further, according to the eighth aspect of the present invention, the program causes the computer for calculating the electricity charge related to the charging of the storage battery mounted on the electric vehicle to run out of the amount of power discharged from the storage battery. A step of specifying the amount of electric power used and a step of specifying the amount of electric power obtained by subtracting the amount of electric power used for traveling from the amount of electric power discharged from the storage battery as a billing target for the user of the electric vehicle are executed. Let me.

According to the above-mentioned electric charge calculation device, electric vehicle, electric charge calculation method and program, it is possible to calculate the charge to be charged to the user for the amount of electric energy consumed for purposes other than the running of the electric vehicle.

It is a figure which shows the whole structure of the electricity charge billing system which concerns on 1st Embodiment. It is a figure which shows the hardware configuration of the electricity charge calculation device which concerns on 1st Embodiment. It is a figure which shows the software structure of the electricity charge calculation device which concerns on 1st Embodiment. It is a figure which shows the hardware composition of the electric vehicle which concerns on 1st Embodiment. It is a figure which shows the software structure of the electric vehicle which concerns on 1st Embodiment. It is a figure which shows the data structure of the main power ON period table which concerns on 1st Embodiment. It is a figure which shows the data structure of the charge history table which concerns on 1st Embodiment. It is a figure which shows the data structure of the charge rate history information which concerns on 1st Embodiment. It is a figure which shows the 1st processing flow of the electric charge calculation apparatus which concerns on 1st Embodiment. It is a 1st figure explaining the function of the electricity charge calculation apparatus which concerns on 1st Embodiment. It is a figure which shows the 2nd processing flow of the electric charge calculation apparatus which concerns on 1st Embodiment. It is a 2nd figure explaining the function of the electricity charge calculation device which concerns on 1st Embodiment. It is a figure which shows the software structure of the electric vehicle which concerns on the modification of 1st Embodiment. It is a figure which shows the data structure of the traveling history table which concerns on the modification of 1st Embodiment. It is a figure which shows the 2nd processing flow of the electric charge calculation apparatus which concerns on the modification of 1st Embodiment. It is a figure which shows the software structure of the electric vehicle which concerns on 2nd Embodiment.

<First Embodiment>
Hereinafter, the drive system according to the first embodiment will be described in detail with reference to FIGS. 1 to 12.

(overall structure)
FIG. 1 is a diagram showing an overall configuration of an electricity billing system according to the first embodiment.

The electricity billing system according to the first embodiment is used, for example, when the following sales contract is made between a business operator who provides a service for using an electric vehicle and a user who uses the electric vehicle. Be done.
That is, at the stage of the sales contract with the user, the business operator charges the electric vehicle itself by adding the electric energy charge (electricity charge) required for the running of the electric vehicle in addition to the charge (vehicle charge). When purchasing an electric vehicle, the user pays in advance a fixed charge for the electricity required to drive the electric vehicle. In this case, the user who has paid the fixed electricity bill (hereinafter, also referred to as "prepaid fixed electricity bill") will, in principle, charge an additional charge (electricity) for the amount of electricity to be charged to the storage battery of the electric vehicle thereafter. You will not be charged a fee.
On the other hand, the business operator specifies the total amount of electricity charged by each user in the storage battery of the electric vehicle, and pays the electric power company or the like according to the total amount of the electric energy.

In the above-mentioned charge system, the business operator determines the amount of the "prepaid fixed electricity bill" with reference to, for example, the average total mileage within the assumed usage period (6 to 8 years) of the electric vehicle.
On the other hand, as represented by V2H (Vehicle to Home), V2G (Vehicle to Grid), etc., there is known a technique for utilizing the amount of electric energy charged in the storage battery of an electric vehicle for purposes other than running of the electric vehicle. There is. Here, it is assumed that the user according to the above contract intends to use the amount of electric power charged in the storage battery of the electric vehicle for a purpose different from the running of the electric vehicle (such as a domestic use through V2H). In this case, the user can use the charged electric power inexhaustibly for home use or the like, even though no additional cost is incurred for the electric power charged in the storage battery of the electric vehicle. In that case, the business operator will have to pay the electric power company, etc. an electricity bill that greatly exceeds the amount of the "prepaid fixed electricity bill" paid in advance assuming only the driving use, and the burden on the business side will increase. obtain. Therefore, of the amount of electric power consumed (discharged) from the storage battery of the electric vehicle, the amount of electric power consumed for purposes other than the running of the electric vehicle is required to be additionally charged to the user.

As shown in FIG. 1, the electricity charge billing system 1 according to the first embodiment includes an electricity charge calculation device 2, an electric vehicle 3, a charging stand 4, a house 5, and a user terminal device 6. There is.

The electricity rate calculation device 2 receives various information collected in the electric vehicle 3, and can determine for what purpose the electric energy discharged from the storage battery of the electric vehicle 3 is used based on the information. And. Then, the electric charge calculation device 2 calculates a charge to be charged to the user for the amount of electric energy consumed for a purpose other than the running of the electric vehicle 3.

The electric vehicle 3 is a vehicle equipped with a storage battery and travels based on the amount of electric power charged in the storage battery. The amount of electric power charged in the storage battery of the electric vehicle 3 is mainly consumed (discharged) by the running of the electric vehicle 3. Further, by connecting the electric vehicle 3 to the V2H device 50 provided in the house 5, it is possible to supply an electric energy for operating various electric facilities, electric appliances and the like in the house 5. That is, the amount of electric power charged in the storage battery of the electric vehicle 3 can be consumed (discharged) by an application other than the traveling of the electric vehicle 3.
Further, the storage battery of the electric vehicle 3 is mainly charged via the charging stand 4.

The charging stand 4 supplies electric power transmitted from a power system, a power storage facility, or the like (not shown) to the connected electric vehicle 3. The charging stand 4 has a communication function, and can transmit and receive various information related to charging to and from the connected electric vehicle 3.

The house 5 is a house provided with the V2H device 50. The house 5 receives electric power from the electric vehicle 3 connected via the V2H device 50, and can operate various electric appliances provided inside.

The user terminal device 6 is a terminal device possessed by the user of the electric vehicle 3, and is, for example, a smartphone. The user terminal device 6 receives the information regarding the electricity bill of the electric vehicle 3 provided by the electricity charge calculation device 2 and notifies the user.

(Hardware configuration of electricity rate arithmetic unit)
FIG. 2 is a diagram showing a hardware configuration of the electricity rate calculation device according to the first embodiment.
As shown in FIG. 2, the electricity rate calculation device 2 according to the first embodiment includes a CPU 20, a memory 21, an operation unit 22, a display unit 23, a recording medium 24, and an external connection interface 25. ing.

The CPU 20 is an arithmetic unit that realizes each function described later by reading a program or data stored in a recording medium 24 or the like onto a memory 21 and executing a process specified in the program.
The memory 21 is, for example, a volatile memory (RAM) used as a work area of the CPU 20 or the like.
The operation unit 22 is composed of, for example, a mouse, a touch panel, a keyboard, and the like, and inputs various operations and the like to the CPU 20 in response to an instruction from the operator.
The display unit 23 is realized by, for example, a liquid crystal display, an organic EL display, or the like, and displays the processing result by the CPU 20.
The recording medium 24 is realized by, for example, a large-capacity recording device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive), and stores an OS (Operation System), an application program, various data, and the like.
The external connection interface 25 is an interface with the outside. In particular, in the present embodiment, the external connection interface 25 is connected to a public wide area network line or the like. As a result, the electricity rate calculation device 2 receives various information from each electric vehicle 3.

(Software configuration of electricity rate calculation device)
FIG. 3 is a diagram showing a software configuration of the electricity rate calculation device according to the first embodiment.
The CPU 20 according to the first embodiment operates based on a predetermined program, so that the information acquisition unit 200, the burden amount calculation unit 201, the traveling power consumption specifying unit 202, and the user-charged power amount specifying unit shown in FIG. 3 are operated. It functions as 203 and the billing information transmission unit 204.

The information acquisition unit 200 receives and acquires various information related to charging recorded and accumulated in each electric vehicle 3 (FIG. 1).
The burden amount calculation unit 201 calculates the burden amount to be paid by the business operator to the electric power company or the like. Specifically, the burden amount calculation unit 201 calculates the electricity bill according to the amount of electric power charged by the user to the storage battery of the electric vehicle 3.
First, the traveling electric energy specifying unit 202 also describes the cumulative value of the electric energy discharged from the storage battery of the electric vehicle 3 (hereinafter, also referred to as “cumulative electric energy”) in a predetermined period (for example, a certain one-month period). ), The cumulative value of the electric energy used for traveling the electric vehicle 3 (hereinafter, also referred to as “driving electric energy”) is specified.
The user-charged electric energy specifying unit 203 sets the electric energy amount obtained by subtracting the traveling electric energy amount from the cumulative electric energy amount (hereinafter, also referred to as “non-traveling electric energy amount”) as a charging target to the user of the electric vehicle 3. Identify.
The billing information transmission unit 204 is a user terminal device 6 possessed by the target user for the amount of non-traveling power specified by the user-charging power amount specifying unit 203 and the amount of charging according to the non-traveling power amount. Etc. to send.

(Hardware configuration of electric vehicle)
FIG. 4 is a diagram showing a hardware configuration of an electric vehicle according to the first embodiment.
As shown in FIG. 4, the electric vehicle 3 according to the first embodiment includes an electric vehicle control unit 30, a recording medium 31, a storage battery 32, a start switch 33, and an in-vehicle display unit 34.
The electric vehicle control unit 30 is a processor that controls the electric vehicle 3 and is composed of an ECU (Engine Control Unit), a BMS (Battery Management System), and the like.
The recording medium 31 is a large-capacity recording device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) mounted on the electric vehicle 3, and stores various data and the like.
The storage battery 32 is a secondary battery such as a lithium ion battery, and serves as a power supply source for a motor that runs the electric vehicle 3.
The start switch 33 is a switch for turning on / off the main power supply of the electric vehicle 3, and corresponds to an ignition key of a normal vehicle.
The in-vehicle display unit 34 is a display installed in the vehicle of the electric vehicle 3, and in particular, displays and notifies the user on board the information related to the electricity bill.

(Software configuration of electric vehicle)
FIG. 5 is a diagram showing a software configuration of the electric vehicle according to the first embodiment.
The electric vehicle control unit 30 according to the first embodiment operates based on a predetermined program, so that the main power supply information recording unit 300, the charge history recording unit 301, the charge rate recording unit 302, and the recording information shown in FIG. It functions as a transmission unit 303 and a notification unit 304.

The main power supply information recording unit 300 sets a period during which the main power supply of the electric vehicle 3 is ON (hereinafter, also referred to as a “main power supply ON period”) based on a user operation with respect to the start switch 33 (FIG. 4). Identify. Then, the main power supply information recording unit 300 records information indicating the history of the main power supply ON period (hereinafter, also referred to as “main power ON period table T1”) on the recording medium 31.
When the electric vehicle 3 is connected to the charging stand 4 (FIG. 1) and the storage battery 32 is charged, the charging history recording unit 301 also describes information related to the charging (hereinafter, also referred to as “charging history table T2”). ) Is acquired from the charging stand 4 or the like and recorded on the recording medium 31.
The charge rate recording unit 302 monitors the charge rate (SoC: State of Charge) of the storage battery 32 and records information indicating the fluctuation history in chronological order (hereinafter, also referred to as “charge rate history information T3”). Record on medium 31.
The recording information transmission unit 303 periodically transmits various information recorded and accumulated in the recording medium 31 to the electricity rate calculation device 2.

(Data structure of main power ON period table)
FIG. 6 is a diagram showing a data structure of the main power ON period table according to the first embodiment.
In the main power supply information recording unit 300, the start switch 33 is pressed by the user to turn on the main power of the electric vehicle 3, and the start switch 33 is pressed again to turn off the main power of the electric vehicle 3. Detects and records the timing. As a result, as shown in FIG. 6, the date and time when the main power of the electric vehicle 3 is turned on and the date and time when the main power of the electric vehicle 3 is turned off are shown in the main power ON period table T1. History is recorded.

(Data structure of charging history table)
FIG. 7 is a diagram showing a data structure of the charging history table according to the first embodiment.
When the electric vehicle 3 is connected to the charging stand 4, the charging station 4 starts the charging process of the storage battery 32 (FIG. 4) after the authentication process with the electric vehicle 3. At this time, the charging stand 4 transmits the unique identification information to the electric vehicle 3. The charging history recording unit 301 can determine which charging station was charged based on the identification information received from the charging station 4. As a result, as shown in FIG. 7, the charging history table T2 records the identification information of the charging stand (charging stand identification information), the charging start date and time, the charging end date and time, and the charging power amount in association with each other. Will be done.

(Data structure of charge rate history information)
FIG. 8 is a diagram showing a data structure of charge rate history information according to the first embodiment.
The charge rate recording unit 302 periodically detects the charge rate (SoC) of the storage battery 32, and records the charge rate history information T3 indicating the history of fluctuations due to charging and discharging on the recording medium 31. As a result, as shown in FIG. 8, the charge rate history information T3 records the fluctuation of the charge rate of the storage battery 32 due to charging and discharging in time series.

(Processing flow related to calculation of business operator burden)
FIG. 9 is a diagram showing a first processing flow of the electricity rate calculation device according to the first embodiment.
Further, FIG. 10 is a first diagram illustrating the function of the electricity rate calculation device according to the first embodiment.
The processing flow shown in FIG. 9 is a processing flow related to the calculation of the amount borne by the business operator, and is a processing flow for specifying the electricity bill to be paid by the business operator to the electric power company or the like. The first processing flow is periodically executed every predetermined period (for example, one month) elapses.

The information acquisition unit 200 (FIG. 3) of the electricity rate calculation device 2 receives the information recorded as the charge history table T2 (FIG. 7) from the electric vehicle 3 (step S01).
Next, the burden amount calculation unit 201 (FIG. 3) of the electricity charge calculation device 2 charges the storage battery 32 within a predetermined period based on the charge power amount shown in the charge history table T2 received in step S01. The amount of electric power is totaled and the cumulative amount of charged electric power is calculated (step S02). Further, in this case, the burden amount calculation unit 201 may specify the charging power amount for each charging station based on the charging station identification information shown in the charging history table T2. As a result, as shown in FIG. 10, the cumulative charge power amount, which is the cumulative value of the power amount charged by the user to the storage battery 32 within a predetermined period (for example, one month), and the charge power amount for each charging stand are specified. To.
Next, the burden amount calculation unit 201 calculates the electricity bill (business operator burden amount) that the business operator should pay to the electric power company based on the cumulative charged electric energy calculated in step S02 and the contents of the contract with the electric power company. (Step S03). The burden amount calculation unit 201 calculates the operator burden amount by, for example, multiplying the electric energy unit price set in the contract with the electric power company by the cumulative charge electric energy amount calculated in step S02. If the power supply sources (power companies) to each of the plurality of charging stations 4 are different, the burden to be paid to each power company is individually calculated based on the amount of charging power specified for each charging station. May be good.

In the above example, the burden amount calculation unit 201 has been described as calculating the cumulative charge power amount and the burden amount according to the cumulative charge power amount based on the charge history table T2, but other embodiments Is not limited to this aspect. For example, the burden amount calculation unit 201 according to another embodiment has a cumulative charge power amount and a cumulative charge power based on only the charge rate history information T3 or both the charge rate history information T3 and the charge history table T2. The burden amount may be calculated according to the amount.

(Processing flow related to calculation of user burden)
FIG. 11 is a diagram showing a second processing flow of the electricity rate calculation device according to the first embodiment.
Further, FIG. 12 is a second diagram illustrating the function of the electricity rate calculation device according to the first embodiment.
The second processing flow shown in FIG. 11 is a processing flow related to the calculation of the user's burden amount, and is a processing flow for specifying the electricity bill to be paid by the user to the business operator (or the electric power company or the like). The second processing flow is periodically executed every predetermined period (for example, one month) elapses.

The information acquisition unit 200 (FIG. 3) of the electricity rate calculation device 2 receives the information recorded as the main power ON period table T1 (FIG. 6) and the charge rate history information T3 (FIG. 8) from the electric vehicle 3 (step). S11).
Next, the traveling power consumption specifying unit 202 of the electricity charge calculation device 2 refers to the charge rate history information T3 (FIG. 8), and is a cumulative value of the amount of power discharged from the storage battery 32 within a predetermined period. The amount of discharge power is calculated (step S12). Specifically, the traveling power consumption specifying unit 202 extracts a region (time zone) in which the charge rate is continuously decreasing from the fluctuation of the charge rate indicated by the charge rate history information T3, and the region concerned. The cumulative discharge power amount is calculated by integrating the decrease in the power amount in.
Further, the traveling electric energy specifying unit 202 refers to both the main power ON period table T1 and the charge rate history information T3, and out of the electric energy discharged from the storage battery 32 within a predetermined period, the electric vehicle 3 travels. The traveling electric energy, which is the electric energy used for the above, is calculated (step S13). Specifically, the traveling electric energy specifying unit 202 discharges during the period in which the main power supply of the electric vehicle 3 is ON during the period in which the storage battery 32 is discharged, which is shown in the charge rate history information T3. The amount of electricity used for running is calculated by totaling the amount of electricity generated.

Next, the user-charged electric energy specifying unit 203 of the electricity charge calculation device 2 is used for a purpose other than traveling by subtracting the traveling electric energy calculated in step S13 from the cumulative discharging electric energy calculated in step S12. The amount of non-traveling electric energy, which is the amount of electric energy, is calculated (step S14). The relationship between the cumulative discharge power amount, the running power consumption, and the non-running power consumption is as shown in FIG. Here, the "prepaid fixed electricity bill" paid by the operator at the time of contract is the amount equivalent to the amount of electric power used for running the electric vehicle 3, and is used for purposes other than running. Electricity charges related to non-driving electric energy are not included. Therefore, the business operator separately collects an amount corresponding to the charge (electricity cost) related to the amount of non-traveling electric power from the user.

The user-charged electric energy specifying unit 203 calculates the charge amount (user burden amount) to the user based on the non-traveling electric energy amount calculated in step S14 (step S15). Specifically, the user-charged electric energy specifying unit 203 calculates the amount charged to the user by multiplying the non-traveling electric energy amount by a predetermined electric energy unit price.

Next, the charge information transmission unit 204 of the electricity charge calculation device 2 is a user terminal device in which the user possesses the non-traveling electric energy calculated in step S14 and the charge amount to the user calculated in step S15. 6 (Fig. 1) is transmitted. As a result, the user can know the amount of non-traveling electric power and the amount to be charged separately for the amount of non-traveling electric power through the user terminal device 6.
Further, the billing information transmission unit 204 may transmit the non-traveling electric energy calculated in step S14 and the charge amount to the user calculated in step S15 to the electric vehicle control unit 30 of the electric vehicle 3. Good. In this case, the notification unit 304 (FIG. 5) of the electric vehicle control unit 30 is based on the non-traveling electric energy and the non-driving electric energy through, for example, the in-vehicle display unit 34 (FIG. 4) of the electric vehicle 3. Display the amount charged to the user.

(Action effect)
As described above, the electric charge calculation device 2 according to the first embodiment is used for traveling to specify the amount of electric power used for traveling (the amount of electric energy used for traveling) among the electric energy discharged from the storage battery 32 of the electric vehicle 3. The electric energy specifying unit 202 is provided. Further, the electricity charge calculation device 2 calculates the electric energy (non-traveling electric energy) obtained by subtracting the electric energy used for traveling (driving electric energy) from the electric energy discharged from the storage battery 32 (cumulative electric energy). A user-charged electric energy specifying unit 203 for specifying a user to be charged for the electric vehicle 3 is provided.
With such a configuration, when the electric vehicle 3 is purchased, when a contract is made to receive advance payment of the electricity bill for the amount of electricity used for traveling, the business operator regards the amount of electricity used for purposes other than traveling. , Users can request additional payments.

Further, the electricity rate calculation device 2 (traveling electric energy specifying unit 202) according to the first embodiment uses the amount of electric energy discharged during the period when the main power of the electric vehicle 3 is on for traveling. It is specified as the amount of electric energy generated (see step S13 in FIG. 11).
With such a configuration, it is assumed that the amount of electric energy consumed (discharged) while the main power supply of the electric vehicle 3 is ON is the amount of electric energy used for running the electric vehicle 3. Therefore, the amount of electric energy used for traveling can be calculated.

Further, the electric vehicle 3 according to the first embodiment is specified as an electric energy (non-traveling electric energy) specified as a billing target and a billing target based on the information received from the electricity charge calculation device 2. It is provided with a notification unit 304 that notifies the user of the billing amount according to the amount of electric power.
As a result, even while the electric vehicle 3 is on board, the user can know the amount of non-traveling electric power and the amount of billing to be paid separately for the amount of non-traveling electric power, for example, through the in-vehicle display unit 34.

The electricity billing system 1 according to the first embodiment has been described in detail above, but the specific embodiment of the electricity billing system 1 is not limited to the above, and is within the range that does not deviate from the gist. It is possible to make various design changes in.

For example, the specific data structures of the main power ON period table T1, the charge history table T2, and the charge rate history information T3 (FIGS. 6 to 8) according to the first embodiment are examples, and the above-described embodiment is used. Is not limited. That is, the data structures of the main power ON period table T1, the charge history table T2, and the charge rate history information T3 are data elements to the extent that the object of the electricity charge billing system 1 according to the first embodiment can be achieved. It may be omitted, added, or converted.
Further, the main power ON period table T1, the charging history table T2, and the charging rate history information T3 have been described as being recorded and stored in the recording medium 31 of the electric vehicle 3, but the present invention is not limited to this aspect. The main power ON period table T1, the charging history table T2, and the charging rate history information T3 according to the other embodiments are recorded on a recording medium (dedicated network server or the like) installed on the wide area communication network. May be good.

<Modified example of the first embodiment>
Next, a modified example of the first embodiment will be described with reference to FIGS. 13 to 15.

(Software configuration of electric vehicle)
FIG. 13 is a diagram showing a software configuration of an electric vehicle according to a modified example of the first embodiment.
The electric vehicle control unit 30 of the electric vehicle 3 according to the modified example of the first embodiment further functions as a travel history recording unit 305.
The travel history recording unit 305 constantly samples the position information of the electric vehicle 3 at regular intervals and records it as the travel history table T4. Here, the travel history recording unit 305 records, for example, latitude / longitude information obtained by GNSS (Global Navigation Satellite System) as position information.

(Data structure of travel history table)
FIG. 14 is a diagram showing a data structure of a travel history table according to a modified example of the first embodiment.
As shown in FIG. 14, the travel history table T4 is associated with the time (date and time) when the position information of the electric vehicle 3 is sampled and the position information (vehicle position) acquired by the sampling.

(Processing flow related to calculation of user burden)
FIG. 15 is a diagram showing a part of a second processing flow of the electricity rate calculation device according to the modified example of the first embodiment.
The electricity rate calculation device 2 according to the modified example of the first embodiment is different from the first embodiment in the processing contents in the following points.
The processing flow shown in FIG. 15 is a processing flow further executed by the traveling power consumption specifying unit 202 in the processing for calculating the traveling power consumption (see step S13 in FIG. 11).

The traveling power consumption specifying unit 202 according to the modified example refers to the traveling history table T4 (FIG. 14) received from the electric vehicle 3 before calculating the traveling power consumption in step S13 (FIG. 11) (step S21). ).
Next, the traveling power consumption specifying unit 202 continuously performs a predetermined time (for example, 1 hour) or more in the traveling history recorded in the traveling history table T4 even though the main power supply of the electric vehicle 3 is turned on. Then, the period during which the vehicle position has not changed (has not moved) is specified (step S22). During such a period (a period in which the main power of the electric vehicle 3 is turned on but does not move continuously for a predetermined time or longer), the storage battery 32 is charged even if the main power is turned on. It is highly probable that the amount of electric power used is used for purposes other than running.
Therefore, the traveling electric energy specifying unit 202 does not include the electric energy discharged during the “period during which the electric vehicle 3 is not moving” specified in step S22 in the traveling electric energy (step S23). Specifically, the traveling electric energy specifying unit 202 determines that "the electric vehicle 3 is not moving" from the aggregated value of the electric energy discharged during the period when the main power of the electric vehicle 3 is ON. The value obtained by subtracting the amount of electric power discharged during the specified period is taken as the amount of electric energy used for running.

(Action effect)
As described above, the electricity charge calculation device 2 (traveling electric energy specifying unit 202) according to the modified example of the first embodiment further specifies the traveling electric energy amount based on the traveling history of the electric vehicle 3.
Here, strictly speaking, even if the amount of electric power is discharged during the main power ON period of the electric vehicle 3, the amount of electric power is not necessarily used for traveling. For example, there is a possibility that the motor of the electric vehicle 3 is connected to another power generation device or the like for secondary use, or that the cooling air from the in-vehicle air conditioner of the electric vehicle 3 is sent to another area outside the company for use. Conceivable.
Therefore, with the above configuration, the amount of power used for traveling can be calculated more accurately by performing a back check to see if the electric vehicle 3 is actually moving during the period of discharge from the storage battery 32. can do.

<Second embodiment>
Next, the drive system according to the second embodiment will be described in detail with reference to FIG.

(Software configuration of electric vehicle)
FIG. 16 is a diagram showing a software configuration of an electric vehicle according to a second embodiment.
The electric vehicle control unit 30 of the electric vehicle 3 according to the second embodiment includes a mileage recording unit 300a.
The mileage recording unit 300a according to the second embodiment functions as a mileage recording unit 305. The travel history recording unit 305 records the total travel distance of the electric vehicle 3 within a predetermined period (for example, one month) as the travel distance information T1a.

(Processing of electricity rate calculation device)
The process of the traveling power consumption specifying unit 202 of the electricity rate calculation device 2 according to the second embodiment will be described.
The traveling electric energy specifying unit 202 according to the second embodiment acquires the total traveling distance of the electric vehicle 3 within a predetermined period based on the traveling distance information T1a (FIG. 16) received from the electric vehicle 3. Then, the traveling power consumption specifying unit 202 multiplies the acquired total mileage by a predetermined coefficient (hereinafter, also referred to as “power consumption conversion coefficient α”) to determine the traveling power consumption. Is calculated.
That is, the mileage of the electric vehicle 3 and the consumption of the charging power of the storage battery 32 have a certain correlation through the characteristics peculiar to the electric vehicle 3 (power consumption conversion coefficient α). Therefore, by multiplying the total mileage of the predetermined period (1 month) by the power consumption conversion coefficient α obtained in advance, it is possible to estimate the "electric energy used for traveling" in the predetermined period.

As described above, the electricity charge calculation device 2 (traveling power consumption specifying unit 202) according to the second embodiment is the product of the mileage of the electric vehicle 3 and the predetermined proportional coefficient (power consumption conversion coefficient α). The amount of power used for driving is specified based on.
By doing so, it is possible to accurately estimate the running power consumption with a simple calculation.

The function of the traveling electric energy specifying unit 202 according to the second embodiment is not limited to the above aspect. The traveling electric energy specifying unit 202 according to the modified example of the second embodiment consumes power based on, for example, the operating conditions of the electric vehicle 3 (usage status of in-vehicle equipment, average speed, average acceleration, outside temperature, etc.). The mode may be such that the quantity conversion coefficient α is corrected.

Further, the function according to the modification of the first embodiment may be applied to the electricity billing system 1 according to the second embodiment. That is, the electric vehicle 3 according to the modified example of the second embodiment further has a travel history recording unit 305, and the electricity charge calculation device 2 (travel power consumption specifying unit 202) is a back based on the travel history table T4. You may check.

Further, in the first embodiment (and its modification) and the second embodiment, the electricity rate calculation device 2 calculates the non-traveling electric energy amount by subtracting the traveling electric energy amount from the cumulative discharge electric energy amount. However, the present embodiment is not limited to this aspect.
The electricity rate calculation device 2 according to another embodiment acquires, for example, history information (connection history information such as V2H) connected to V2H, V2G, etc., and obtains V2H, V2G based on the connection history information such as V2H. The amount of non-traveling power may be calculated directly by integrating the amount of power discharged via the vehicle.

In each of the above-described embodiments, a program for realizing the functions of the electric charge calculation device 2 (CPU 20) and the electric vehicle 3 (electric vehicle control unit 30) is recorded on a computer-readable recording medium, and the recording medium is recorded. Each procedure is performed by loading the program recorded in the above into the computer system and executing it. Here, each process of the CPU 20 and the electric vehicle control unit 30 described above is stored in a computer-readable recording medium in the form of a program, and the various processes can be performed by the computer reading and executing this program. Will be done. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Further, this computer program may be distributed to a computer via a communication line, and the computer receiving the distribution may execute the program.
Further, the functions of the CPU 20 and the electric vehicle control unit 30 may be provided across a plurality of devices connected by a network.
Further, a part or all of the functions of the CPU 20 may be realized by the electric vehicle control unit 30.

Although some embodiments of the present invention have been described above, all the embodiments described above are shown as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1 Electricity charge billing system 2 Electricity charge calculation device 20 CPU
200 Information acquisition unit 201 Burden amount calculation unit 202 Traveling electric energy specification unit 203 User charge electric energy specification unit 204 Charge information transmission unit 21 Memory 22 Operation unit 23 Display unit 24 Recording medium 25 External connection interface 3 Electric vehicle 30 Electric vehicle control Unit 300 Main power supply information recording unit 301 Charging history recording unit 302 Charging rate recording unit 303 Recording information transmission unit 304 Notification unit 305 Travel history recording unit 300a Mileage recording unit 31 Recording medium 32 Storage battery 33 Start switch 34 In-vehicle display unit 4 Charging stand 5 Residential 50 V2H equipment 6 User terminal equipment

Claims (8)

It is an arithmetic unit that calculates the electricity charges related to the charging of storage batteries installed in electric vehicles.
Of the amount of power discharged from the storage battery, the running power consumption specifying unit that specifies the amount of power used for running, and the running power consumption specifying unit.
The amount of electricity obtained by subtracting the amount of electricity used for traveling from the amount of electricity discharged from the storage battery is specified as the target of the electricity bill to be collected separately from the fixed electricity bill paid by the user of the electric vehicle at the time of the sales contract. User-charged electric energy identification unit and
An electricity rate calculator equipped with. The traveling power consumption specifying unit is
The electricity rate calculation device according to claim 1, wherein the amount of electric power discharged during the period when the main power of the electric vehicle is turned on is specified as the amount of electric energy used for the traveling. The traveling power consumption specifying unit is
The electricity rate calculation device according to claim 1, wherein the amount of electric power used for the traveling is specified based on the mileage of the electric vehicle. The traveling power consumption specifying unit further
The electricity rate calculation device according to claim 2 or 3, wherein the amount of electric power used for the traveling is specified based on the traveling history of the electric vehicle. Based on the information received from the electricity charge calculation device according to any one of claims 1 to 4, according to the amount of power specified as the billing target and the amount of power specified as the billing target. An electric vehicle equipped with a notification unit that notifies the user of at least one of the charged amounts. An electric vehicle comprising the electricity rate calculation device according to any one of claims 1 to 4. It is a calculation method for calculating the electricity charge related to the charging of the storage battery mounted on the electric vehicle.
A step in which the electricity rate calculation device specifies the amount of electric energy used for traveling out of the amount of electric energy discharged from the storage battery.
Electricity to be collected by the electricity charge calculator, which is obtained by subtracting the amount of electricity used for traveling from the amount of electricity discharged from the storage battery, in addition to the fixed electricity bill paid by the user of the electric vehicle at the time of the sales contract. The steps to identify as the target of the generation and
Electricity bill calculation method with. A computer for calculating electricity charges related to the charging of storage batteries installed in electric vehicles,
Of the amount of electric power discharged from the storage battery, the step of specifying the amount of electric power used for running and
The amount of electricity obtained by subtracting the amount of electricity used for traveling from the amount of electricity discharged from the storage battery is specified as the target of the electricity bill to be collected separately from the fixed electricity bill paid by the user of the electric vehicle at the time of the sales contract. Steps and
A program that executes.

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