JP2016181109A - Charge amount calculation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charge amount calculation device with which it is possible to calculate a charging amount of electricity that contributes to low cost when a mobile entity capable of supplying electricity to a building is charged by a power supply facility.SOLUTION: The amount of supplied electricity from a vehicle to a building is calculated on the basis of not only power consumption information but also building electricity rate information and power supply electricity rates, whereby it is possible to compare electricity rates between a building and a power supply facility and determine the amount of electricity supply that contributes to low cost. The amount of facility charging electricity is calculated on the basis of the amount of electricity supply thus calculated, the remaining amount of electricity, and the amount of traveling power consumption required until the vehicle reaches the building, whereby it is possible to calculate the amount of charging electricity that contributes to low cost when the vehicle is charged by the power supply facility.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a charge amount calculation device that calculates the amount of charge power to a mobile body that can supply power to a building.

  Conventionally, as a replenishment facility guidance device (charge amount calculation device) mounted on an electric vehicle, a plurality of charging facilities on a route to a destination are detected, and the charging price (electricity charge) of each charging facility is compared. Has been proposed (see, for example, Patent Document 1). In the conventional replenishment facility guidance device described in Patent Document 1, by calculating the estimated arrival time of each charging facility, even when the charging price changes depending on the time zone, the charging facility is set so that the charging cost is the lowest. It is configured to guide.

JP 2009-8609 A

  By the way, a vehicle (mobile body) having a battery such as an electric vehicle or a plug-in hybrid vehicle may be configured to be able to supply power to a building. However, the replenishment facility guidance device described in Patent Document 1 is configured to charge a minimum amount of power that can be reached at home, and cannot supply power from the vehicle to the building after returning home, If the charging price of the charging facility is lower than the charging price at home, it is not always an economical charging method. In addition, even if the charging price of the charging facility is lower than the charging price of the home during the same time period, the charging price of the home during the other time period may be even lower. Charging is not always an economical charging method. That is, it is difficult for the conventional replenishment facility guidance apparatus to charge the battery so as to reduce the cost in consideration of the amount of power supplied to the building.

  Therefore, an object of the present invention is to provide a charge amount calculation device capable of calculating a charge power amount that is low in cost when a mobile object that can supply power to a building is charged at a power supply facility.

  In order to solve the above-described problem and achieve the object, the charge amount calculation device according to the present invention according to claim 1 acquires remaining power amount information indicating a remaining power amount of a mobile body capable of supplying power to a building. A moving body information acquisition unit; current position information indicating a current position of the moving body; building position information indicating a position of the building; and facility position information indicating a position of a power supply facility capable of supplying power to the moving body; A location information acquisition unit for acquiring power consumption amount information indicating the amount of power consumption in the building, and a building information acquisition unit for acquiring building electricity rate information indicating an electricity rate for each time zone in the building, and the power supply Based on a facility information acquisition unit that acquires power supply electricity charge information indicating a power supply electricity charge that is an electricity charge when power is supplied to the mobile body in the facility, the current position information, the facility position information, and the building position information The The travel power consumption amount, which is the power consumption amount required to arrive at the building via the power supply facility from the current position, is calculated, and the power consumption amount information, the building electricity rate information, and the power supply electricity rate Based on the information, based on the power consumption calculation unit that calculates the amount of power supplied from the mobile body to the building, and based on the remaining power amount, the travel power consumption amount, and the power supply amount, And a charge amount calculation unit for calculating a facility charge power amount for charging the mobile body.

  The charge amount calculation method of the present invention according to claim 5 is a charge amount calculation method for calculating a charge power amount for a mobile body capable of supplying power to a building, the remaining power amount indicating the remaining power amount of the mobile body. A mobile body information acquisition step for acquiring power amount information, current position information indicating the current position of the mobile body, building position information indicating the position of the building, and a position of a power supply facility capable of supplying power to the mobile body The location information acquisition step for acquiring the facility location information indicating the building power information, the power consumption information indicating the power consumption amount in the building, and the building information for acquiring the building electricity rate information indicating the electricity rate for each time zone in the building An acquisition step, a facility information acquisition step of acquiring power supply electricity rate information indicating a power supply electricity rate that is an electricity rate when power is supplied to the mobile body in the power supply facility, the current location information, the facility location information, and Previous Based on the building position information, a travel power consumption amount that is a power consumption amount required to arrive at the building from the current position via the power feeding facility is calculated, and the power consumption information, the building electricity Based on the charge information and the power supply electricity charge information, based on the power consumption calculation step for calculating the power supply from the mobile body to the building, the remaining power, the travel power consumption and the supply power And a charge amount calculating step of calculating a facility charge power amount for charging the mobile body in the power supply facility.

It is a block diagram which shows the outline of the charge amount calculation apparatus which concerns on the Example of this invention. It is a flowchart which shows an example of the procedure of the charge amount calculation process which the said charge amount calculation apparatus performs. It is a flowchart which shows an example of the procedure of the list creation process in the said charge amount calculation process. It is a flowchart which shows an example of the procedure of the electricity bill calculation process in the said list creation process. It is a flowchart which shows an example of the procedure of the running electric energy calculation process in the said electricity bill calculation process. It is a flowchart which shows an example of the procedure of the power consumption calculation process in the said electricity bill calculation process. It is a flowchart which shows an example of the procedure of the electricity bill acquisition process in the said electricity bill calculation process.

  Embodiments of the present invention will be described below. A charge amount calculation device according to an embodiment of the present invention includes a mobile body information acquisition unit that acquires residual power amount information indicating a residual power amount of a mobile body that can supply power to a building, and a current position that indicates a current position of the mobile body. Position information acquisition unit for acquiring position information, building position information indicating the position of the building, and facility position information indicating the position of the power supply facility capable of supplying power to the moving body, and power consumption indicating the power consumption in the building A building information acquisition unit that acquires amount information and a building electricity rate information indicating an electricity rate for each time zone in the building, and a power supply that indicates a power supply rate that is an electricity rate when power is supplied to a moving body in a power supply facility Based on the current location information, the facility location information, and the building location information, and traveling that is the amount of power required to arrive at the building from the current location via the power feeding facility consumption A power consumption calculation unit that calculates the amount of power to be supplied from the mobile unit to the building based on the power consumption information, the building electricity bill information, and the power supply electricity bill information, and the remaining power amount and the traveling power consumption A charge amount calculation unit that calculates a facility charge power amount for charging the mobile body in the power supply facility based on the amount and the supplied power amount.

  According to such a charge amount calculation device of the present embodiment, the building information acquisition unit acquires power consumption information, thereby estimating the amount of power consumed in the building after the mobile object arrives at the building. Can do. The power consumption calculator calculates not only the power consumption information (that is, the power consumption estimated on the basis of the power consumption information on the day) but also the building power charge information and the power supply charge from the mobile unit. By calculating the amount of power supplied to the building, it is possible to determine the amount of power supplied at a low cost by comparing the electricity charges between the building and the power supply facility. At this time, since the building electricity rate information indicates the electricity rate for each time zone, even if the level of the electricity rate of the building and the electricity rate of the power supply facility is reversed depending on the time zone, the amount of power supply that is low cost can be reduced. Can be determined. The charge amount calculation unit calculates the facility charge power amount based on the supply power amount calculated in this way, the remaining power amount, and the travel power consumption amount required to arrive at the building. When the body is charged at the power supply facility, it is possible to calculate the amount of charging power that is low in cost.

  The building electricity rate information includes the first time zone electricity rate information indicating the electricity rate in the first time zone, and the second time zone electricity rate information indicating the electricity rate in the second time zone lower than the electricity rate in the first time zone. The power consumption calculation unit includes an estimated time of arrival of the mobile object at the building when the electricity supply charge is lower than the electricity charge in the first time zone and higher than the electricity charge in the second time zone. It is preferable to calculate the amount of power supply based on the time when the electricity rate for the first time zone is switched to the electricity rate for the second time zone and the power consumption information. Thereby, based on the estimated arrival time, the time to switch to the electricity charge in the second time zone, and the power consumption information, the power consumption in the building after the mobile arrives at the building and in the first time zone The amount can be calculated. When the electricity supply charge is lower than the electricity charge for the first time zone and higher than the electricity charge for the second time zone, the calculated electricity consumption is used as the supply electricity amount, so that the electricity charge is higher than the electricity supply electricity charge. In the first time zone in which the power supply is applied, the power charged with the power supply electricity charge is used. In the second time zone in which the electricity charge lower than the power supply electricity charge is applied, it is provided with the electricity charge in the second time zone. Power can be used, and the cost can be further reduced.

  The power consumption information preferably includes a past power consumption associated with at least one of date / time, season, weather, temperature, humidity, and event. Thereby, it is possible to accurately estimate the amount of power consumed in the building after the mobile object arrives at the building. That is, for example, based on the season, weather, temperature, and humidity, we can estimate the increase or decrease in power consumption due to the use of air conditioning equipment, or the increase or decrease in power consumption due to the use of TV or audio equipment based on the date and event You can do it.

  The facility information acquisition unit, when there are a plurality of power supply facilities where the mobile body can arrive, is generated in each power supply facility and the required time information indicating the time required for transit charging in each power supply facility and charging, and in each power supply facility and building A power supply facility selection unit that acquires total power bill information indicating a total power bill and selects a power feed facility to be routed based on the required time information, the total power bill information, and a preset priority. It is preferable to further provide. As a result, the power supply facility can be selected according to whether priority is given to a short required time or priority is given to charging at a low charge. Here, the total electricity charge is a charge generated by the amount of power consumed when arriving at the building via the power supply facility and the amount of power used in the building, for example, used in the building When all the power is covered by the power supplied by the power supply facility, the charge generated at the power supply facility is the total electricity charge. On the other hand, when the power supply facility supplies only the amount of power required to arrive at the building, and the building consumes the power supplied by the operator, the total of the charge generated at the power supply facility and the charge generated at the building is the total electricity charge It becomes. Furthermore, by setting priorities for the required time and the electricity bill in advance, the facility information acquisition unit can automatically select the power supply facility.

  Further, the charge amount calculation method according to the embodiment of the present invention is a charge amount calculation method for calculating the charge power amount to a mobile body that can supply power to a building, and the remaining power indicating the remaining power amount of the mobile body Mobile object information acquisition step for acquiring quantity information, current position information indicating the current position of the mobile object, building position information indicating the position of the building, and facility position indicating the position of the power supply facility that can supply power to the mobile object A location information acquisition process for acquiring information, a power consumption information indicating a power consumption amount in a building, and a building information acquisition step for acquiring a building electricity charge information indicating an electricity charge for each time zone in the building, and a power supply facility In the facility information acquisition step of acquiring the electricity supply electricity rate information indicating the electricity supply electricity rate that is the electricity rate for supplying power to the mobile body, and based on the current location information, the facility location information, and the building location information, from the current location The travel power consumption, which is the power consumption required to arrive at the building via the power facility, is calculated, and from the mobile object to the building based on the power consumption information, the building electricity charge information, and the power supply electricity charge information. Power consumption calculation step for calculating the amount of power supplied to the vehicle, and a charge amount calculation step for calculating the amount of charge for charging the facility in the power supply facility based on the amount of remaining power, the amount of power consumed for traveling, and the amount of power supplied And including. According to such a charge amount calculation method of the present embodiment, as in the above charge amount calculation apparatus, when charging a mobile body that can supply power to a building at a power supply facility, the charge power amount that is low in cost is obtained. Can be calculated.

  Moreover, it is good also as a charge amount calculation program which performs the charge amount calculation method mentioned above by computer. By doing so, it is possible to calculate the amount of charging power that is low in cost when a mobile body that can supply power to a building is charged at a power supply facility using a computer.

  Further, the above-described charge amount calculation program may be stored in a computer-readable recording medium. In this way, the program can be distributed as a single unit in addition to being incorporated in the device, and version upgrades can be easily performed.

  Examples of the present invention will be specifically described below. FIG. 1 is a block diagram illustrating an outline of a charge amount calculation apparatus 1 according to an embodiment of the present invention, and FIG. 2 is a flowchart illustrating an example of a charge amount calculation process performed by the charge amount calculation apparatus 1. 3 is a flowchart illustrating an example of a procedure of a list creation process in the charge amount calculation process, FIG. 4 is a flowchart illustrating an example of a procedure of an electricity charge calculation process in the list creation process, and FIG. FIG. 6 is a flowchart illustrating an example of a procedure of a running power amount calculation process in the charge calculation process, FIG. 6 is a flowchart illustrating an example of a procedure of a power consumption amount calculation process in the electricity charge calculation process, and FIG. It is a flowchart which shows an example of the procedure of the electricity bill acquisition process in a process.

  The charge amount calculation device 1 is configured to calculate a charge power amount to a vehicle (for example, an electric vehicle or a plug-in hybrid vehicle) as a mobile body that can supply power to a building, and serves as a mobile body information acquisition unit. A vehicle information acquisition unit, a position information acquisition unit, a building information acquisition unit, a facility information acquisition unit, a power consumption amount calculation unit, a charge amount calculation unit, a power supply facility selection unit, and a power amount output unit; Prepare. In the present embodiment, the charge amount calculation device 1 is configured to use a part of the in-vehicle device CS such as a car navigation system. The in-vehicle device CS is connected to the network by the external communication device CN, is configured to be able to communicate with the artificial satellite by the GPS antenna G, is configured to be able to acquire the information on the battery B of the vehicle by the remaining power acquisition unit 2, and the display unit 5 And an input device 6.

  The vehicle information acquisition unit is configured to acquire remaining power amount information indicating the remaining power amount of the battery B of the vehicle. In this embodiment, the central processing unit (hereinafter referred to as CPU) 3 of the in-vehicle device CS is configured to acquire the remaining power amount information via the remaining power amount acquisition unit 2, and the CPU 3 acquires the vehicle information. It functions as a part.

  The position information acquisition unit acquires current position information indicating the current position of the vehicle, building position information indicating the position of the home as a building, and facility position information indicating the position of a power supply facility that can supply power to the vehicle. It is configured. In this embodiment, a plurality of power supply facilities are registered in advance as a charging spot database D1 in the storage unit M of the in-vehicle device CS, and the navigation control unit 31 of the CPU 3 is currently connected via the GPS control unit 4 and the GPS antenna G. The location information is acquired, the building location information is acquired from the map database D2 stored in the storage unit M, the power supply facility that can be reached is selected based on the map database D2 and the charging spot database D1, and the facility location information is obtained. The navigation control unit 31 functions as a position information acquisition unit. The power supply facility may search for a vehicle that can be reached within a predetermined range (for example, 200 m) with respect to the route from the current position to the home and based on the remaining power amount. For example, the search may be performed within 10 km. In addition, the configuration may be such that the user can appropriately select the method for searching for the power supply facility within the range from the route and the method for searching for the power supply facility within the range from the current position. .

  The building information acquisition unit is configured to acquire power consumption information indicating past power consumption at home and building electricity charge information indicating an electricity charge for each time zone at home. In this embodiment, the communication control unit 32 of the CPU 3 is configured to acquire power consumption information and building electricity bill information via the external communication device CN, and the communication control unit 32 functions as a building information acquisition unit. To do. It is assumed that the power consumption information and the building electricity bill information are stored in, for example, a server connected to the in-vehicle device CS via a network. Moreover, you may acquire building electricity bill information by communicating with the provider which supplies electric power to a house.

  The power consumption information is, for example, a history of power consumption per hour, and is stored in association with a plurality of consumption prediction parameters such as date, season, weather, temperature, humidity, and events. That is, the history is such that the tendency of power consumption at home can be understood. For example, power consumption increases by watching TV programs at specific times on specific days of the week, using air conditioning on high temperatures, or gathering people on the New Year or user birthdays, etc. By storing the correlation between each consumption prediction parameter and the power consumption amount, it is possible to estimate the power consumption amount at home on the day based on each consumption prediction parameter.

  The building electricity rate information includes the daytime electricity rate information (first time zone electricity rate information) indicating the daytime electricity rate as the electricity rate for the first time zone, and the electricity rate for the second time zone lower than the daytime electricity rate. Night electricity bill information (second time zone electricity bill information) indicating the night electricity bill. In this embodiment, for example, a nighttime electricity charge is applied from 11:00 pm to 7:00 am the following day, and a daytime electricity charge is applied during other time periods. That is, 11:00 pm is the charge change time at which the daytime electricity charge is switched to the nighttime electricity charge.

  The facility information acquisition unit is configured to acquire power supply electricity charge information indicating an electricity charge when power is supplied to the vehicle in the power supply facility. In the present embodiment, the communication control unit 32 is configured to acquire the power supply electricity rate information via the external communication device CN, and the communication control unit 32 functions as a facility information acquisition unit.

  In the charging spot database D1, the type (normal charging or quick charging), position information, electric charge, and charging spot congestion coefficient are registered for each power supply facility. The charging spot congestion coefficient is a numerical value of the number of power supply devices and the degree of congestion in the power supply facility. For example, it takes 30 minutes to charge a predetermined amount of charging power by rapid charging, and when the charging spot congestion coefficient in the power supply facility is 1.2, these are multiplied and it takes about 36 minutes for actual charging. Guessed.

  The facility information acquisition unit passes the current location information, the facility location information, and the traffic jam information acquired by the communication control unit 32 via the external communication device CN for each of the power feeding facilities where the vehicle can arrive. The time required to do this is calculated. Furthermore, the facility information acquisition unit calculates the time required for charging in each power feeding facility based on the type and the congestion coefficient. The total time of the time required for passing through each power supply facility and the time required for charging is the required time for via charge, and the facility information acquisition unit acquires the required time information indicating the required time for via charge. In this embodiment, priorities are set in advance for the required time and the electricity charge, and the facility information acquisition unit is configured to output a plurality of information based on the priority, the required time information, and the total electricity charge information described later. A power supply facility to be routed is automatically selected from among power supply facilities. That is, the facility information acquisition unit selects a power supply facility with a short transit power supply required time in the case of time priority, and selects a power supply facility with a low total electricity charge including usage at home in the case of charge priority. Further, the power supply facility may be selected by scoring each so that the electricity bill and the required time can be comprehensively determined, and comparing the total score in each power supply facility.

  Based on the current position information, facility position information, and building position information, the power consumption calculation unit calculates the travel power consumption, which is the amount of power required to arrive at the home via the power supply facility from the current position. At the same time, the power supply amount from the vehicle to the home is calculated based on the power consumption information, the building electricity charge information, and the power supply electricity charge information. In this embodiment, the navigation control unit 31 searches for a travel route based on each position information and the map database D2, and the communication control unit 32 acquires traffic jam information, so that the CPU 3 arrives at the power supply facility from the current position. The first traveling power consumption amount until the time of arrival and the second traveling power consumption amount until reaching the home from the power supply facility are calculated, that is, the traveling power consumption amount that is the sum of these is calculated. In addition, the CPU 3 calculates the power supply amount by a procedure described later and functions as a power consumption calculation unit.

  The charge amount calculation unit calculates a facility charge power amount for charging the vehicle in the power supply facility based on the remaining power amount, the travel power consumption amount, and the supplied power amount. In the present embodiment, the CPU 3 calculates the facility charge power amount by a procedure as described later, and functions as a charge amount calculation unit.

  As will be described later, the power supply facility selection unit selects a power supply facility to be routed based on the required time information, the total electricity bill information, and a preset priority. In this embodiment, the CPU 3 functions as a power supply facility selection unit.

  The power output unit outputs charge power amount information indicating the facility charge power amount calculated by the charge amount calculation unit. In the present embodiment, the display unit 5 of the in-vehicle device CS displays charging power amount information, and the display unit 5 functions as a power output unit. In addition, the display part of other vehicle equipment, a meter, a head-up display, etc. may function as an electric power output part, and charge electric energy information may be output by audio | voice output.

  The in-vehicle device CS includes an input device 6 so that the passenger can input a destination. Moreover, the memory | storage part M of the vehicle-mounted apparatus CS memorize | stores the traffic jam information for every past time slot | zone, and CPU3 can acquire traffic jam prediction information now. Further, as will be described later, the in-vehicle device CS may acquire traffic jam information from the external communication device CN.

  Hereinafter, an example of the charge amount calculation process executed by the CPU 3 will be described with reference to the flowcharts of FIGS.

  When the passenger inputs his / her home as the destination to the input device 6, the CPU 3 starts the charge amount calculation process shown in FIG. 2 and creates a list of required time information and a total electricity bill of candidate power supply facilities. A list creation process is executed (S0).

  In the list creation process, as shown in FIG. 3, the CPU 3 acquires the remaining power amount of the battery B and the current position of the vehicle (S20), acquires building position information, and a route (route) from the current position to the home. (S21), and among the power supply facilities registered in the charging spot database D1, a power supply facility where the vehicle can arrive within a predetermined range and the remaining power amount with respect to the route from the current position to the home is acquired (S22). ). Next, the CPU 3 determines whether there is an acquired power supply facility (S23). If there is no acquired power supply facility (N in S23), the CPU 3 displays a warning (eg, “no power supply facility”) on the display unit 5 (S24), and ends all the processes. On the other hand, when there is an acquired power supply facility (Y in S23), the CPU 3 executes an electricity charge calculation process for calculating an electricity charge for one power supply facility (S25). S20 corresponds to a vehicle information acquisition process (moving body information acquisition process), and S20 to S22 correspond to a position information acquisition process.

  In the electricity bill calculation process, as shown in FIG. 4, the CPU 3 calculates the time required to arrive at the power supply facility, calculates the first traveling power consumption amount, subtracts it from the remaining power amount, The expected remaining power amount remaining upon arrival is calculated (S30). Next, the CPU 3 executes a travel power amount calculation process for calculating the second travel power consumption amount (S31).

  In the running power amount calculation process, as shown in FIG. 5, the CPU 3 searches for a route from the power supply facility to the home (S60). Next, the CPU 3 acquires traffic information on the route from an external server (S61), acquires traffic information on the route from the road traffic information communication system (VICS (registered trademark)) (S62), and traffic on the route. Predictive information is acquired from the memory | storage part M (S63). At least one of S61 to S63 may be executed. In addition, the steps S61 to S63 may be omitted. If S61 to S63 are omitted, or if the traffic jam information cannot be obtained or information does not exist even if S61 to S63 are executed, Traveling power consumption may be calculated as there is no traffic jam. Next, the CPU 3 acquires height difference information in the route (S64). For example, the height difference information may be stored in the storage unit M together with the map database D2. Based on the traffic jam information and the height difference information acquired in this way, the CPU 3 calculates the second travel power consumption amount (S65) and ends the travel power amount calculation process. In S30 of the electricity bill calculation process, the same process as the travel power amount calculation process may be executed to calculate the first travel power consumption amount.

  The CPU 3 returns to the electricity bill calculation process, and executes a power consumption calculation process for calculating an expected power consumption to be used at home after returning home (S32). In the power consumption calculation process, as shown in FIG. 6, the CPU 3 acquires the estimated arrival time at home based on the route searched in S60 (S70), and acquires the charge change time (S71). The CPU 3 calculates the time (daytime electricity usage time) from the estimated arrival time to the charge change time (S72). If the estimated arrival time is after the charge change time, the daytime electricity usage time is set to zero. Next, the CPU 3 acquires the power consumption information and the predicted consumption parameter at the arrival date and time (S73), and estimates the power consumption per unit time based on the predicted consumption parameter (S74). Based on the electricity usage time and the power consumption per unit time, the CPU 3 calculates the expected power consumption (S75) and ends the power consumption calculation process. S71 to S73 correspond to a building information acquisition process.

  The CPU 3 returns to the electricity bill calculation process, and executes an electricity bill acquisition process for obtaining power supply electricity bill information (S33). In the electricity charge acquisition process, as shown in FIG. 7, the CPU 3 determines whether or not the electricity supply electricity charge fluctuates depending on the time zone (S80). In addition, since there are cases where the electricity supply fee fluctuates depending on the season or day of the week, or the power supply facility discounts, it may be determined whether or not the electricity fee fluctuates due to factors other than the time zone. When the power supply electricity charge fluctuates (Y in S80), the CPU 3 acquires the power supply electricity charge information at the expected time of arrival at the power supply facility from the database storing the power supply electricity charge information and information related to the fluctuation (S81, The facility information acquisition process) and the electricity charge acquisition process are terminated. On the other hand, when the electricity charge of the power supply facility does not fluctuate (N in S80), the CPU 3 acquires power supply electricity charge information from the charging spot database D1 (S82), and ends the electricity charge acquisition process.

  The CPU 3 returns to the electricity charge calculation process and determines whether or not the electricity supply electricity charge is lower than the night electricity charge (S34). When the power supply electricity charge is lower than the night electricity charge (Y in S34), the CPU 3 sets the total expected power consumption after returning home as the amount of power supplied from the vehicle to the home, and the remaining power amount when returning home is this supply. The facility charge power amount is calculated to be equal to the power amount (S35). That is, the value obtained by subtracting the remaining power amount from the sum of the traveling power consumption amount and the supplied power amount is set as the facility charging power amount. Further, the CPU 3 calculates and acquires the time required to arrive at the power supply facility from the current position, the time required for charging, the time required to return from the power supply facility, and the charging spot congestion coefficient (S36). . That is, the CPU 3 calculates the time required for via charging. Next, the CPU 3 calculates the electricity fee generated at the electricity supply facility as a total electricity fee based on the electricity supply electricity fee and the facility charge electric energy (S37), and ends the electricity fee calculation process. In addition, when the power supply electricity charge is free, the total electricity charge is zero.

  On the other hand, when the electricity supply charge is equal to or higher than the night electricity charge (N in S34), the CPU 3 determines whether or not the electricity supply electricity charge is lower than the daytime electricity charge (S38). When the power supply electricity charge is lower than the daytime electricity charge (Y in S38), the CPU 3 sets the expected power consumption from the time of returning to the time of changing the charge to the amount of power supplied from the vehicle to the home and the remaining power when returning home. The facility charge power amount is calculated so that the power amount becomes equal to the supplied power amount (S39). Further, the CPU 3 calculates the time required for via charging as in S36 (S40). Next, the CPU 3 calculates the sum of the electricity charge generated at the power supply facility and the electricity charge generated at home based on the estimated power consumption after the charge change time as a total electricity charge (S41), and performs the electricity charge calculation process. finish.

  When the power supply electricity charge is equal to or greater than the daytime electricity charge (N in S38), the CPU 3 determines whether or not the current remaining power amount is greater than or equal to the travel power consumption amount for arriving at the home (S42). When the remaining power amount is equal to or greater than the travel power consumption amount (Y in S42), the CPU 3 sets the power supply amount from the vehicle to the home to 0 and the facility charge power amount to 0 (S43). That is, it is assumed that the vehicle does not go through the power supply facility. Further, the CPU 3 calculates the time required for charging via the time required to arrive at the home from the current position without passing through the power supply facility (S44). Next, the CPU 3 calculates the electricity charge generated at home based on the total expected power consumption after returning home as a total electricity charge (S45), and ends the electricity charge calculation process.

  On the other hand, if the remaining power amount is less than the travel power consumption amount (N in S42), the CPU 3 sets the power supply amount from the vehicle to the home to 0, and the remaining power amount after charging is equal to the second travel power consumption amount. The facility charge power amount is calculated as follows (S46). That is, the value obtained by subtracting the remaining power amount at the current position from the traveling power amount is the facility charging power amount. Furthermore, the CPU 3 calculates the time required for via charging as in S36 (S47). Next, the CPU 3 calculates the sum of the electricity charge generated at the power supply facility and the electricity charge generated at home based on the total expected power consumption after returning home as a total electricity charge (S48), and ends the electricity charge calculation process. To do.

  S30, S65, S74, S75, S35, S39, S43, and S46 as described above correspond to the power consumption calculation step, and S35, S39, S43, and S46 correspond to the charge amount calculation step.

  When the electricity charge calculation process is completed, the CPU 3 returns to the list creation process, and determines whether there is any power supply facility acquired in S21 that has not been subjected to the electricity charge calculation process (S26). If there is a power supply facility that has not been subjected to the electricity charge calculation process (Y in S26), the CPU 3 returns to S25 again and executes the electricity charge calculation process for the power supply facility. If there is no power supply facility that has not been subjected to the electricity bill calculation process (N in S26), the CPU 3 ends the list creation process.

  When the list creation process ends, the CPU 3 returns to the charge amount calculation process, and arranges the power supply facilities acquired in S21 in the order of preset priority (S1). At this time, conditions that do not pass through the power supply facility are also arranged. Next, the CPU 3 determines whether or not the top of the list is a condition that does not pass through the power supply facility (S2). If the top of the list is a condition that does not pass through the power supply facility (Y in S2), the CPU 3 ends the charge amount calculation process. On the other hand, when the top of the list is a power supply facility (N in S2), the CPU 3 selects the power supply facility that passes through this power supply facility (S3). Next, the CPU 3 waits for a time required for arrival at the power supply facility (S4), and determines whether or not the vehicle has arrived at the power supply facility (S5). When the vehicle arrives at the power supply facility (Y in S5), the CPU 3 causes the display unit 5 to display the facility charge power amount calculated in S35, S39, S43, or S46 as the facility charge power amount information (S6) Is repeatedly determined (S7). If the vehicle arrives at a power feeding facility different from the power feeding facility selected in S3, it is determined as Y in S5, and the facility charging power amount information in the arrived power feeding facility is displayed. In addition, when the electricity charge of the selected power supply facility is lower than the night electricity charge (Y in S34), facility charge power amount information instructing full charge may be displayed.

  When charging is completed (Y in S7), the CPU 3 waits for the time required for arrival at home (S8), and repeatedly determines whether the vehicle has arrived at home (S9). When the vehicle arrives at home (Y in S9), the CPU 3 ends the charge amount calculation process.

  On the other hand, if the vehicle does not arrive at the power supply facility (N in S5), it is determined whether the vehicle has arrived at home (S10). That is, it is determined that the driver does not stop at the power supply facility, and it is determined whether or not the driver has returned home. At this time, before S12, for example, a time obtained by subtracting the standby time in S4 from the time required to return home directly from the first current position may be waited. When the vehicle has arrived at home (Y in S10), the CPU 3 ends the charge amount calculation process. On the other hand, when the vehicle does not arrive at home (N in S10), the CPU 3 determines the remaining power amount at that time and a predicted value of the remaining power amount at the time of arrival at the power supply facility (from the first remaining power amount to the first travel consumption). It is determined whether or not the difference between the value obtained by subtracting the electric energy is within a predetermined value (S11). When the difference between the remaining power amount and the predicted value is larger than the predetermined value (N in S11), the CPU 3 returns to S0 and recalculates. That is, the list is re-created when the arrival at the power supply facility is delayed more than expected and the amount of power consumption becomes large due to traffic jams or the like. On the other hand, when the difference between the remaining power amount and the predicted value is within the predetermined value (Y in S11), the CPU 3 waits for a predetermined time (S12), and the CPU 3 returns to S5 again.

  The above configuration compares the electricity charges between the building and the power supply facility by calculating the amount of power supplied from the vehicle to the building based on not only the power consumption information but also the building electricity charge information and the electricity supply electricity charge. Thus, it is possible to determine the amount of supplied power that is low in cost. The vehicle is charged at the power supply facility by calculating the facility charge power amount based on the power supply amount calculated in this way, the remaining power amount, and the travel power consumption amount required to arrive at the building. In this case, it is possible to calculate the amount of charging power that is low in cost.

  Furthermore, the building electricity rate information includes daytime electricity rate information and nighttime electricity rate information, and by comparing the power supply electricity rate information with the daytime electricity rate information and nighttime electricity rate information, the power supply amount can be further reduced. Cost can be increased. For example, when the electricity supply rate is lower than the daytime electricity rate and higher than the nighttime electricity rate, the nighttime electricity rate is applied using the power charged with the electricity supply electricity rate in the time period when the daytime electricity rate is applied. In the time zone, it is possible to use electric power provided at night electricity charges.

  In addition, this invention is not limited to the said Example, The other deformation | transformation etc. which can achieve the objective of this invention are included in this invention.

  For example, in the above-described embodiment, the night electricity charge as the electricity charge in the second time zone is one type. However, the night electricity charge may be set in multiple stages, and in this case, the power consumption calculation is performed. In the process, the power consumption is calculated in consideration of each night electricity charge, and the power supply electricity charge may be compared with each night electricity charge in the electricity charge calculation process. Also, the night electricity charge may not be applied, and the electricity charge at home may be constant throughout the day. In addition, the first time zone is daytime and the second time zone is nighttime. However, if the first time zone and the second time zone are appropriately set according to the change in the electricity rate according to the time, Good.

  In the above embodiment, the past power consumption is assumed to be associated with a plurality of consumption prediction parameters. However, the past power consumption may be associated with some of the plurality of consumption prediction parameters. Good. Further, the past power consumption amount is not associated with the consumption prediction parameter, and for example, an average value of the past power consumption amount may be set as the predicted power consumption amount. Moreover, it is good also as a structure which estimates the power consumption of the day, when a passenger inputs the schedule etc. of the day.

  In the above embodiment, when there are a plurality of power supply facilities where the vehicle can arrive, the power supply facility to be routed is automatically selected based on a preset priority. By functioning as an output unit, the required time information and total fee information for each power supply facility is displayed, and the passenger selects one from the displayed power supply facilities by the input device 6 as a reception unit. It may be accepted. The automatic selection of the power supply facility and the selection of the power supply facility by the passenger may be configured to be switchable.

  In the above embodiment, the charging power amount information is displayed on the display unit 5. However, the charging power amount information is not displayed on the display unit 5. For example, the CPU 3 controls the charging amount in the power supply facility as a control unit. Alternatively, a configuration in which only the facility charging power amount is automatically charged may be used.

  In the embodiment, in the electricity bill calculation process, the power supply amount is calculated based on the predicted power consumption after returning home and the travel power consumption required for returning home, that is, the power charged in the vehicle is used up at home. The facility charge power amount is calculated so that the power is used up when the user arrives at home. However, the facility charge power amount may be calculated so as to have an appropriate margin. For example, the facility charging power amount may be calculated so that the power for traveling the next day remains in the vehicle after the supply of power from the vehicle to the building is completed.

  Moreover, in the said Example, although the house was illustrated as a building which a vehicle supplies electric power, this building should just supply electric power from a vehicle while being supplied with electric power from an electric power provider, for example, an office Or a store, a villa, a campsite facility, or the like.

  In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, although the present invention has been particularly illustrated and described with respect to particular embodiments, it will be understood that the present invention is not limited in shape to the embodiments described above without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations. Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

DESCRIPTION OF SYMBOLS 1 Charge amount calculation apparatus 3 CPU (vehicle information acquisition part, power consumption amount calculation part, charge amount calculation part)
31 Navigation control unit (location information acquisition unit)
32 Communication control unit (building information acquisition unit, facility information acquisition unit)

Claims (7)

A mobile unit information acquisition unit that acquires residual power amount information indicating a residual power amount of a mobile unit that can supply power to the building;
A position information acquisition unit that acquires current position information indicating a current position of the mobile body, building position information indicating the position of the building, and facility position information indicating a position of a power feeding facility capable of supplying power to the mobile body When,
A building information acquisition unit for acquiring power consumption information indicating power consumption in the building, and building electricity charge information indicating an electricity charge for each time zone in the building;
A facility information acquisition unit that acquires power supply electricity charge information indicating a power supply electricity charge that is an electricity charge when supplying power to the mobile body in the power supply facility;
Based on the current position information, the facility position information, and the building position information, a travel power consumption amount that is a power consumption amount required to arrive at the building from the current position via the power feeding facility is calculated. And, based on the power consumption information, the building electricity bill information and the power supply electricity bill information, a power consumption calculator that calculates the amount of power supplied from the mobile body to the building;
A charge amount calculation unit that calculates a facility charge power amount for charging the mobile body in the power feeding facility based on the remaining power amount, the travel power consumption amount, and the supplied power amount. Quantity calculation device. The building electricity rate information includes first time zone electricity rate information indicating a first time zone electricity rate and second time zone electricity indicating a second time zone electricity rate lower than the first time zone electricity rate. Pricing information, and
The power consumption amount calculation unit is configured to predict the arrival time of the mobile unit at the building when the electricity charge is lower than the electricity charge in the first time zone and higher than the electricity charge in the second time zone. The power supply amount is calculated on the basis of the time when the electricity charge for the first time period is switched to the electricity charge for the second time period and the power consumption information. Charge amount calculation apparatus as described in.   The charge amount calculation according to claim 1, wherein the power consumption amount information includes a past power consumption amount associated with at least one of date / time, season, weather, temperature, humidity, and an event. apparatus. The facility information acquisition unit, when there are a plurality of the power supply facilities to which the mobile body can arrive, the required time information indicating the time required for transit charging in each of the power supply facilities and the respective power supply Obtaining the total electricity bill information indicating the total electricity bill generated in the facility and the building,
The power supply facility selection part which selects the said power supply facility to route based on the said required time information, the said total electricity bill information, and the preset priority, The power supply facility selection part characterized by the above-mentioned. The charge amount calculation apparatus according to any one of the above. A charge amount calculation method for calculating a charge power amount to a mobile body capable of supplying power to a building,
A mobile body information acquisition step of acquiring residual power amount information indicating a residual power amount of the mobile body;
Position information acquisition step of acquiring current position information indicating the current position of the mobile body, building position information indicating the position of the building, and facility position information indicating a position of a power feeding facility capable of supplying power to the mobile body When,
A building information acquisition step for acquiring power consumption information indicating power consumption in the building, and building electricity charge information indicating an electricity charge for each time zone in the building;
A facility information acquisition step of acquiring power supply electricity rate information indicating a power supply electricity rate that is an electricity rate when power is supplied to the mobile body in the power supply facility;
Based on the current position information, the facility position information, and the building position information, a travel power consumption amount that is a power consumption amount required to arrive at the building from the current position via the power feeding facility is calculated. And, based on the power consumption information, the building electricity bill information and the power supply electricity bill information, a power consumption calculation step for calculating the amount of power supplied from the mobile body to the building;
A charge amount calculating step of calculating a facility charge power amount for charging the mobile unit in the power feeding facility based on the remaining power amount, the travel power consumption amount, and the supplied power amount. Quantity calculation method.   A charge amount calculation program that causes a computer to execute the charge amount calculation method according to claim 5.   A computer-readable recording medium storing the charge amount calculation program according to claim 6.

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