JP2020038707A - Charge amount calculation device - Google Patents

Abstract

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 charged amount calculating device that calculates a charged amount of power to a mobile body capable of supplying power to a building.

  Conventionally, as a replenishment facility guidance device (charge amount calculation device) mounted on an electric vehicle, a device that detects a plurality of charging facilities on a route to a destination and compares the charging price (electricity fee) of each charging facility. Has been proposed (for example, see Patent Document 1). In the conventional supply facility guide device described in Patent Literature 1, the estimated arrival time of each charging facility is calculated so that the charging facility is minimized even if the charging price changes depending on the time zone. It is configured to guide.

JP 2009-8609 A

  By the way, vehicles (moving bodies) having batteries, such as electric vehicles and plug-in hybrid vehicles, may be configured to be able to supply power to buildings. However, the supply facility guide device described in Patent Literature 1 is configured to charge the minimum amount of power that can reach 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 of the home, the charging method is not always economical. In addition, even if the charging price of the charging facility at a certain time is lower than the charging price of the home at the same time, the charging price of the home at another time may be lower. Charging is not always an economical charging method. That is, it is difficult for the conventional supply facility guide device to be charged at low cost in consideration of the amount of power supplied to the building.

  Therefore, an object of the present invention is to provide, as an example, a charging amount calculation device capable of calculating a low-cost charging power amount when charging a moving object capable of supplying power to a building at a power supply facility.

  In order to solve the above-described problem and achieve the object, a charging amount calculation device according to the present invention 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 building information obtaining unit for obtaining power consumption information indicating the amount of power consumption in the building, and building electricity rate information indicating an electricity rate for each time zone in the building. A facility information acquisition unit that acquires power supply rate information indicating a power supply rate, which is a power rate when supplying power to the moving body in a facility, based on the current position information, the facility position information, and the building position information; hand The running power consumption, which is the power consumption required to reach the building from the current position via the power feeding facility, is calculated, and the power consumption information, the building electricity rate information, and the power feeding electricity rate are calculated. Based on information, a power consumption calculating unit that calculates the amount of power supplied from the moving body to the building, and the remaining power, the traveling power consumption, and the supplied power based on the power supply facility. And a charging amount calculating unit for calculating a facility charging power amount for charging the moving object.

  A charge amount calculation method according to the present invention according to claim 5, wherein the charge amount calculation method calculates a charge amount for a moving object capable of supplying power to a building, and the remaining amount indicating the remaining power amount of the moving object. A moving object information acquiring step of acquiring electric energy information; current position information indicating a current position of the moving object; building position information indicating a position of the building; and a position of a power supply facility capable of supplying power to the moving object. A location information acquisition step of acquiring facility location information indicating power consumption information indicating the amount of power consumption in the building, and building information acquiring building electricity rate information indicating an 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, which is an electricity rate when supplying power to the moving body in the power supply facility, the current position information, the facility location information, and Previous Based on the building position information, a running power consumption amount, which is a power consumption amount required to arrive at the building from the current position via the power supply facility, is calculated, and the power consumption information, the building electricity A power consumption calculating step of calculating a power supply amount from the moving body to the building based on the charge information and the supplied power charge information, and based on the remaining power amount, the traveling power consumption amount, and the supply power amount. A charging amount calculating step of calculating a facility charging power amount for charging the moving body in the power supply facility.

It is a block diagram showing the outline of the amount-of-charge calculation device concerning the example of the present 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 preparation process in the said charge amount calculation process. It is a flow chart which shows an example of the procedure of the electricity bill calculation processing in the above-mentioned list creation processing. It is a flowchart which shows an example of the procedure of the driving | running | working electric energy calculation process in the said electricity price calculation process. It is a flowchart which shows an example of the procedure of the electric power consumption calculation processing in the said electricity bill calculation processing. It is a flow chart which shows an example of the procedure of the electricity bill acquisition processing in the electricity bill calculation processing.

  Hereinafter, embodiments of the present invention will be described. A charging amount calculation device according to an embodiment of the present invention includes a moving body information acquisition unit that acquires remaining power amount information indicating a remaining power amount of a moving body capable of supplying power to a building, and a current state indicating a current position of the moving body. A position information acquisition unit for acquiring position information, building position information indicating a position of a building, and facility position information indicating a position of a power supply facility capable of supplying power to a mobile object, and power consumption indicating a power consumption amount in the building A building information acquisition unit that acquires the amount information and the building electricity rate information indicating the electricity rate for each time zone in the building; and a power supply that indicates a power supply electricity rate that is an electricity rate when power is supplied to the moving body in the power supply facility. A facility information acquisition unit that acquires electricity rate information, and travel based on current position information, facility position information, and building position information, the amount of power consumption required to reach a building from a current position via a power supply facility. consumption A power consumption calculator for calculating the power, calculating the power supply from the moving object to the building based on the power consumption information, the building power rate information, and the power supply power rate information; A charging amount calculation unit that calculates a facility charging 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 the power consumption information, thereby estimating the power consumption in the building after the moving object arrives at the building. Can be. The power consumption calculator calculates a power consumption based on not only the power consumption information (that is, the power consumption of the day estimated based on the power consumption information) but also the building power rate information and the power supply power rate. By calculating the amount of power supplied to the building, it is possible to determine the low-cost power supply by comparing the electricity rates of 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 are reversed depending on the time zone, the amount of power supplied at 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 thus calculated, the remaining power amount, and the traveling power consumption amount required to arrive at the building, thereby moving the vehicle. It is possible to calculate the amount of charging power that is low in cost when charging the body at the power supply facility.

  The building electricity rate information includes first time zone electricity rate information indicating a first time zone electricity rate, and second time zone electricity rate information indicating a second time zone electricity rate lower than the first time zone electricity rate. The power consumption calculation unit includes: when the power supply electricity rate is lower than the electricity rate in the first time zone and higher than the electricity rate in the second time zone, the estimated time of arrival of the moving object to the building The power supply amount is preferably calculated based on the power consumption information and the time at which the electricity rate in the first time zone is switched to the electricity rate in the second time zone. Thereby, based on the estimated arrival time, the time of switching to the electricity rate in the second time zone, and the power consumption information, the power consumption in the building after the mobile arrives in the building and in the first time zone The amount can be calculated. When the supplied electricity rate is lower than the electricity rate in the first time zone and higher than the electricity rate in the second time zone, the calculated power consumption is used as the supplied electricity rate, so that the electricity rate is higher than the electricity rate. Is applied in the first time zone to which the power supply electricity rate is applied, and in the second time zone in which the electricity rate lower than the power supply electricity rate is applied, the electricity is provided at the second time zone electricity rate. Power can be used, and the cost can be further reduced.

  Preferably, the power consumption information includes a past power consumption associated with at least one of date and time, season, weather, temperature, humidity, and an event. Thereby, it is possible to accurately estimate the amount of power consumed in the building after the moving object arrives at the building. That is, for example, based on the season, weather, temperature, and humidity, an increase or decrease in power consumption due to use of a cooling or heating device is estimated, or an increase or decrease in power consumption due to use of a television or an audio device is estimated based on date and time or an event. Or you can.

  When there are a plurality of power supply facilities to which the mobile body can arrive, the facility information acquisition unit generates required time information indicating a required time for transit charging required for transit and charging at each of the power supply facilities, and occurs at each of the power supply facilities and the building. A power supply facility selection unit that obtains total power rate information indicating the total power rate, obtains required time information, total power rate information, and a preset priority, and selects a power supply facility to pass through. It is preferable to further provide. Thereby, a power supply facility can be selected according to whether priority is given to shorter required time or to charging at a low charge. Here, the total electricity rate is a rate 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, and is used, for example, in the building. When all the power is supplied by the power supplied by the power supply facility, the charge generated at the power supply facility is the total electricity rate. On the other hand, if electricity is supplied at the power supply facility by the amount of power required to arrive at the building, and the building consumes power supplied by the business operator, the total of the charge incurred at the power supply facility and the charge incurred in the building is the total electricity charge Becomes Furthermore, by setting priorities for the required time and the electricity rate in advance, the facility information acquisition unit can automatically select a power supply facility.

  Also, the charging amount calculation method according to the embodiment of the present invention is a charging amount calculation method for calculating a charging power amount for a moving body capable of supplying power to a building, and the remaining power indicating the remaining power amount of the moving body. A moving object information acquiring step of acquiring quantity information; current position information indicating a current position of the moving object; building position information indicating a building position; and a facility position indicating a position of a power supply facility capable of supplying power to the moving object. Information, a position information acquisition step of acquiring information, a power consumption amount information indicating a power consumption amount in the building, and a building information acquisition step of acquiring building electricity rate information indicating an electricity rate for each time zone in the building; In the 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 moving object, based on the current location information, facility location information, and building location information, from the current location. Calculates the traveling power consumption, which is the amount of power required to arrive at the building via the power facility, and, based on the power consumption information, the building electricity rate information, and the power supply electricity rate information, moves the building from the mobile object to the building. Power consumption calculating step of calculating the amount of power supplied to the vehicle, and a charging amount calculating step of calculating a facility charging power to charge the moving body in the power supply facility based on the remaining power, the traveling power consumption, and the supplied power. And According to such a charge amount calculation method of the present embodiment, similarly to the above-described charge amount calculation device, a charge power amount that is low in cost when charging a movable body that can supply power to a building at a power supply facility is calculated. Can be calculated.

  Further, a charge amount calculation program that causes a computer to execute the above-described charge amount calculation method may be used. By doing so, it is possible to use a computer to calculate a low-cost charge power amount when charging a moving object that can supply power to a building at a power supply facility.

  Further, the above-described charge amount calculation program may be stored in a computer-readable recording medium. By doing so, the program can be distributed as a single unit in addition to being incorporated into the device, and the version can be easily upgraded.

  Hereinafter, examples of the present invention will be specifically described. FIG. 1 is a block diagram schematically illustrating a charge amount calculation device 1 according to an embodiment of the present invention, and FIG. 2 is a flowchart illustrating an example of a procedure of a charge amount calculation process performed by the charge amount calculation device 1. FIG. 3 is a flowchart showing an example of a procedure of a list creation process in the charge amount calculation process, FIG. 4 is a flowchart showing an example of a procedure of an electricity bill 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 a fee calculation process, FIG. 6 is a flowchart illustrating an example of a procedure of a power consumption amount calculation process in an electricity price calculation process, and FIG. It is a flowchart which shows an example of the procedure of the electricity rate acquisition process in a process.

  The charge amount calculation device 1 is configured to calculate a charge amount of power to a vehicle (for example, an electric vehicle or a plug-in hybrid vehicle) as a mobile body capable of supplying 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 calculation unit, a charge calculation unit, a power supply facility selection unit, and a power output unit. Prepare. In the present embodiment, the charge amount calculation device 1 is configured to use a part of the vehicle-mounted 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 of the battery B of the vehicle by the remaining power acquisition unit 2, and is configured to have the display unit 5 And an input device 6.

  The vehicle information obtaining unit is configured to obtain remaining power amount information indicating the remaining power amount of the battery B of the vehicle. In the present embodiment, a central processing unit (hereinafter, referred to as a CPU) 3 of the in-vehicle device CS is configured to acquire remaining power information via the remaining power acquiring unit 2, and the CPU 3 acquires vehicle information. Functions as a unit.

  The position information acquisition unit acquires current position information indicating a current position of the vehicle, building position information indicating a position of a home as a building, and facility position information indicating a position of a power supply facility capable of supplying power to the vehicle. Is configured. In the present embodiment, a plurality of power supply facilities are registered in advance in the storage unit M of the in-vehicle device CS as the charging spot database D1, and the navigation control unit 31 of the CPU 3 transmits the current information via the GPS control unit 4 and the GPS antenna G. While acquiring the position information, the building position information is acquired from the map database D2 stored in the storage unit M, and an accessible power supply facility is selected based on the map database D2 and the charging spot database D1, and the facility position information is obtained. The navigation control unit 31 functions as a position information acquisition unit. The power supply facility may search for a route within a predetermined range (for example, 200 m) of the route from the current position to the home and at which the vehicle can arrive based on the remaining power amount. May be searched within 10 km, for example. Further, the configuration may be such that the user can appropriately select a method of searching for a power supply facility within a range from the route and a method of searching for a power supply facility within a 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 rate information indicating electricity rates for each time zone at home. In the present embodiment, the communication control unit 32 of the CPU 3 is configured to acquire power consumption information and building electricity rate information via the external communication device CN, and the communication control unit 32 functions as a building information acquisition unit. I do. It is assumed that the power consumption information and the building electricity rate information are stored in, for example, a server connected to the in-vehicle device CS via a network. Alternatively, building electricity rate information may be obtained by communicating with a company that supplies power to the home.

  The power consumption information is, for example, a history of the power consumption every hour, and is stored in association with a plurality of consumption prediction parameters such as date and time, season, weather, temperature, humidity, and events. That is, the history is such that the tendency of the power consumption at home can be understood. For example, the power consumption is increased by watching a television program at a specific time on a specific day of the week, using air conditioning on a day when the temperature is high, or gathering on the New Year or a user's birthday. By storing the correlation between each expected consumption parameter and the amount of power consumption, it is possible to estimate the amount of power consumption at home on that day based on each expected consumption parameter.

  The building electricity rate information includes daytime electricity rate information (first time zone electricity rate information) indicating a daytime electricity rate as a first time zone electricity rate, and a second time zone electricity rate lower than the daytime electricity rate. Night electricity rate information (second time zone electricity rate information) indicating the night electricity rate. In the present embodiment, it is assumed that a nighttime electricity rate is applied from 11:00 pm to 7:00 am the next day, and a daytime electricity rate is applied in other time zones. That is, 11:00 pm is a charge change time at which the daytime electricity rate is switched to the nighttime electricity rate.

  The facility information acquisition unit is configured to acquire power supply electricity rate information indicating an electricity rate when power is supplied to the vehicle at the power supply facility. In this 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, types (normal charging or quick charging), position information, electricity charges, and charging spot congestion coefficients are registered for each power supply facility. The charging spot congestion coefficient is obtained by quantifying 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 at the power supply facility is 1.2, multiply these by about 36 minutes for actual charging. Guessed.

  The facility information acquisition unit is configured to determine, for each of the power supply facilities that the vehicle can reach, based on the current location information, the facility location information, and the traffic congestion information acquired by the communication control unit 32 via the external communication device CN. Calculate the time required to perform Further, the facility information acquisition unit calculates the time required for charging in each of the power supply facilities 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 passing charging, and the facility information acquisition unit acquires required time information indicating the required time for passing charging. In the present embodiment, priorities are set in advance for the required time and the electricity rate, and the facility information obtaining unit determines a plurality of times based on the priority, the required time information, and the total electricity rate information described later. Automatically select a power supply facility to go from among the power supply facilities. That is, the facility information acquisition unit selects a power supply facility with a short via power supply required time in the case of time priority, and selects a power supply facility with a low total electricity charge including the amount used at home in the case of charge priority. Alternatively, the power supply facility may be selected by scoring each of the power supply facilities and the required time so that the total can be determined, and comparing the total points in each power supply facility.

  The power consumption calculation unit calculates a travel power consumption, which is a power consumption required from the current position to the home via the power supply facility, based on the current position information, the facility position information, and the building position information. In addition, the power supply amount from the vehicle to the house is calculated based on the power consumption information, the building electricity rate information, and the power supply electricity rate information. In the present embodiment, the navigation control unit 31 searches for a traveling route based on each position information and the map database D2, and the communication control unit 32 obtains traffic jam information. Then, the first traveling power consumption until the vehicle travels and the second traveling power consumption until the vehicle arrives at home from the power supply facility are calculated, that is, the total traveling power consumption is calculated. Further, the CPU 3 calculates the supplied power amount according to a procedure described later, and functions as a power consumption amount calculation unit.

  The charging amount calculation unit calculates a facility charging power amount for charging the vehicle in the power supply facility based on the remaining power amount, the traveling power consumption amount, and the supplied power amount. In the present embodiment, the CPU 3 calculates the facility charging power amount according to a procedure described below, and functions as a charging amount calculation unit.

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

  The power output unit outputs charging power amount information indicating the facility charging power amount calculated by the charging 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. Note that a display unit, a meter, a head-up display, or the like of another in-vehicle device may function as a power output unit, or charge power amount information may be output by voice output.

  The in-vehicle device CS includes an input device 6 so that a passenger can input a destination. The storage unit M of the in-vehicle device CS stores the traffic jam information for each past time zone so that the CPU 3 can obtain the traffic jam prediction information. Further, as described later, the in-vehicle device CS may acquire the 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 a 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 of the candidate power supply facilities and a list of total electricity charges. 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 also obtains a route (route) from the current position to home. (S21), and among the power supply facilities registered in the charging spot database D1, a power supply facility within which 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 a power supply facility that has been acquired (S23). When there is no acquired power supply facility (N in S23), the CPU 3 displays a warning (for example, “No power supply facility”) on the display unit 5 (S24), and ends all the processing. On the other hand, when there is an acquired power supply facility (Y in S23), the CPU 3 executes an electric charge calculation process for calculating an electric charge for one power supply facility (S25). S20 corresponds to a vehicle information acquisition step (moving body information acquisition step), and S20 to S22 correspond to a position information acquisition step.

  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 travel power consumption amount, subtracts it from the remaining power amount, and supplies the power to the power supply facility. The expected remaining power remaining at the time of arrival is calculated (S30). Next, the CPU 3 executes a running power amount calculation process for calculating the second running power consumption amount (S31).

  In the traveling power amount calculation process, as shown in FIG. 5, the CPU 3 searches for a route from the power supply facility to the house (S60). Next, the CPU 3 acquires the traffic jam information on the route from the external server (S61), acquires the traffic jam information on the route from the road traffic information communication system (VICS (registered trademark)) (S62), and acquires the traffic jam on the route. The prediction information is obtained from the storage unit M (S63). At least one of S61 to S63 may be executed. Further, the steps S61 to S63 may be omitted, and when S61 to S63 are omitted, or when the traffic congestion information cannot be obtained or the information does not exist even if S61 to S63 is executed, The travel power consumption may be calculated assuming no traffic congestion. Next, the CPU 3 obtains information on the height difference in the route (S64). The information on the height difference may be stored in the storage unit M together with the map database D2, for example. The CPU 3 calculates the second running power consumption based on the traffic congestion information and the height difference information thus obtained (S65), and ends the running power calculation process. In S30 of the electricity bill calculation process, the first running power consumption may be calculated by executing the same process as the running power calculation process.

  The CPU 3 returns to the electricity bill calculation process, and executes a power consumption calculation process of calculating an estimated 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 obtains an estimated arrival time at home based on the route searched in S60 (S70) and obtains a charge change time (S71). The CPU 3 calculates a time (daytime electricity use 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 0. Next, the CPU 3 acquires the power consumption information and the expected consumption parameter at the expected arrival date and time (S73), and estimates the power consumption per unit time based on the predicted consumption parameter (S74). The CPU 3 calculates the expected power consumption based on the electricity usage time and the power consumption per unit time (S75), and ends the power consumption calculation processing. S71 to S73 correspond to a building information acquisition step.

  The CPU 3 returns to the electricity rate calculation process, and executes an electricity rate acquisition process for acquiring power supply electricity rate information (S33). In the electricity bill acquisition process, as shown in FIG. 7, the CPU 3 determines whether or not the electricity bill for electricity varies with time (S80). It should be noted that the power supply fee may vary depending on the season or the day of the week, or the power supply facility may perform a discount, and therefore, it may be determined whether or not the power fee varies due to factors other than the time zone. When the power supply rate changes (Y in S80), the CPU 3 acquires the power supply rate information at the estimated time of arrival at the power supply facility from the database in which the power supply rate information and the information on the change are stored (S81, (Facility information acquisition step), and the electricity rate acquisition process ends. On the other hand, when the electricity bill of the electricity supply facility does not change (N in S80), the CPU 3 acquires electricity bill information from the charging spot database D1 (S82), and ends the electricity bill acquisition process.

  The CPU 3 returns to the electricity rate calculation process and determines whether the power supply electricity rate is lower than the nighttime electricity rate (S34). If the power supply electricity rate is lower than the nighttime electricity rate (Y in S34), the CPU 3 sets the total expected power consumption after returning home to the power supply amount from the vehicle to the home and the remaining power amount when returning home to this supply amount. The facility charging power is calculated to be equal to the power (S35). That is, a 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 home from the power supply facility, and the charging spot congestion coefficient (S36). . That is, the CPU 3 calculates the required time for via charging. Next, the CPU 3 calculates the electricity bill generated in the electricity supply facility as a total electricity bill based on the electricity bill and the facility charging power (S37), and ends the electricity bill calculation process. When the power supply electricity fee is free, the total electricity fee is zero.

  On the other hand, when the power supply electricity rate is equal to or higher than the nighttime electricity rate (N in S34), the CPU 3 determines whether the power supply electricity rate is lower than the daytime electricity rate (S38). When the power supply electricity rate is lower than the daytime electricity rate (Y in S38), the CPU 3 sets the estimated power consumption from the time of returning home to the rate change time as the amount of power supply from the vehicle to the home and the remaining power when returning home. The facility charging power amount is calculated so that the power amount becomes equal to the supplied power amount (S39). Further, similarly to S36, the CPU 3 calculates the required time for the via charging (S40). Next, the CPU 3 calculates the sum of the electricity rate generated at the power supply facility and the electricity rate generated at the home based on the estimated power consumption after the rate change time as a total electricity rate (S41), and performs the electricity rate calculation process. finish.

  If the supplied electricity rate is equal to or greater than the daytime electricity rate (N in S38), the CPU 3 determines whether or not the remaining power amount at the present time is equal to or greater than the traveling power consumption amount for arriving at home (S42). When the remaining power amount is equal to or more than the running 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 charging power amount to 0 (S43). That is, the vehicle does not pass through the power supply facility. Further, the CPU 3 calculates a time required to reach the home from the current position without passing through the power supply facility as a required time for passing charging (S44). Next, the CPU 3 calculates the electricity bill generated at home based on the total expected power consumption after returning home as the total electricity bill (S45), and ends the electricity bill calculation process.

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

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

  When the electricity bill calculation process is completed, the CPU 3 returns to the list creation process, and determines whether or not any of the power supply facilities acquired in S21 has not been subjected to the electricity bill calculation process (S26). If there is a power supply facility for which the electricity charge calculation process has not been performed (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 for which the electricity bill calculation process has not been performed (N in S26), the CPU 3 ends the list creation process.

  When the list creation process is completed, the CPU 3 returns to the charge amount calculation process, and arranges the power supply facilities acquired in S21 in the order of the 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 the power supply facility (N in S2), the CPU 3 selects the power supply facility via this power supply facility (S3). Next, the CPU 3 waits for the time required to arrive at the power supply facility (S4), and determines whether 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 facility charge power amount information (S6). It is repeatedly determined whether or not is completed (S7). When the vehicle arrives at a power supply facility different from the power supply facility selected in S3, the determination is Y in S5 and the facility charging power amount information of the arrived power supply facility is displayed. Further, when the electricity rate of the selected power supply facility is lower than the nighttime electricity rate (Y in S34), facility charge power amount information for 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 or not 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, when the vehicle has not arrived 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 the driver has returned home directly. At this time, before S12, for example, the standby time may be a time obtained by subtracting the standby time in S4 from the time required to return home directly from the first current position to the home. When the vehicle has arrived at home (Y in S10), 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 the predicted value of the remaining power amount at the time of arriving at the power supply facility (from the first remaining power amount to the first running power consumption). It is determined whether or not the difference between the value and the value obtained by subtracting the electric energy is within a predetermined value (S11). If 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, when the arrival at the power supply facility is delayed more than expected due to traffic congestion and the amount of power consumption has increased, the list is re-created. On the other hand, if the difference between the remaining power and the predicted value is within the predetermined value (Y in S11), the CPU 3 waits for a predetermined time (S12), and returns to S5.

  With the above configuration, the amount of power supplied from the vehicle to the building is calculated based on not only the power consumption information but also the building electricity rate information and the power supply electricity rate, and the electricity rate between the building and the power supply facility is compared. As a result, it is possible to determine the amount of power to be supplied at low cost. The vehicle is charged at the power supply facility by calculating the facility charging power based on the supply power thus calculated, the remaining power, and the traveling power consumption required to arrive at the building. In this case, it is possible to calculate a low-cost charge power amount.

  Further, the building electricity rate information includes daytime electricity rate information and nighttime electricity rate information, and the supplied electricity rate information is compared with the daytime electricity rate information and the nighttime electricity rate information to calculate the amount of supplied electricity, thereby further reducing the amount of supplied electricity. Cost can be reduced. For example, in the case where the power supply electricity rate is lower than the daytime electricity rate and higher than the nighttime electricity rate, in the time zone where the daytime electricity rate is applied, the power charged at the power supply rate is used, and the nighttime electricity rate is applied. In the time zone, power provided at nighttime electricity rates can be used.

  It should be noted that the present invention is not limited to the above-described embodiment, but includes other configurations and the like that can achieve the object of the present invention, and includes the following modifications and the like.

  For example, in the above embodiment, the nighttime electricity rate as the electricity rate in the second time zone is one type, but the nighttime electricity rate may be set in multiple stages. In the processing, the power consumption is calculated in consideration of each night electricity rate, and in the electricity rate calculation processing, the supplied electricity rate may be compared with each night electricity rate. Further, the nighttime electricity rate may not be applied, and the electricity rate at home may be constant throughout the day. Further, 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 in accordance with the change in the electricity rate with time. Good.

  Further, in the above-described embodiment, the past power consumption is assumed to be associated with the plurality of consumption prediction parameters, but the past power consumption may be associated with some of the plurality of consumption prediction parameters. Good. Further, the past power consumption may not be associated with the consumption prediction parameter, and for example, an average value of the past power consumption may be used as the predicted power consumption. Alternatively, the passenger may input a schedule or the like on the day to predict the power consumption on that day.

  Further, in the above-described embodiment, when there are a plurality of power supply facilities to which a vehicle can arrive, the power supply facility through which the vehicle passes is automatically selected based on a preset priority. By functioning as an output unit, required time information and total charge information for each power supply facility are displayed, and the input device 6 serving as a reception unit allows the passenger to select one of the displayed plurality of power supply facilities. May be accepted. Further, the configuration may be such that automatic selection of a power supply facility and selection of a power supply facility by a passenger can be switched.

  Further, in the above-described 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, and for example, the CPU 3 controls the charging amount in the power supply facility as a control unit. Alternatively, a configuration may be employed in which the facility is automatically charged by the facility charging power amount.

  Further, in the above embodiment, in the electricity rate calculation process, the amount of power supply is calculated based on the estimated power consumption after returning home and the traveling power consumption required for returning home, that is, the power charged in the vehicle is used up at home. Although the facility charging power is calculated so that the power is used up when the user arrives at home, the facility charging power may be calculated so as to have an appropriate margin. For example, after the supply of power from the vehicle to the building ends, the facility charging power amount may be calculated so that power for traveling the next day remains in the vehicle.

  Further, in the above-described embodiment, the home is illustrated as a building to which the vehicle supplies power. However, the building may be any building that can be supplied with power from a power provider and supplied with power from a vehicle, such as an office. Or stores, villas, campsite facilities, and the like.

  In addition, the best configuration and method 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 shown and described with particular reference to particular embodiments, it will be understood that other modifications may be made without departing from the spirit and scope of the invention. Those skilled in the art can make various modifications in terms of material, quantity, and other detailed configurations. Therefore, the description of the shapes, materials, and the like disclosed above is merely illustrative for the purpose of facilitating the understanding of the present invention, and does not limit the present invention. The description by the name of the member excluding some or all of the limitations such as is included in the present invention.

1 Charge amount calculation device 3 CPU (vehicle information acquisition unit, power consumption amount calculation unit, charge amount calculation unit)
31 Navigation control unit (position information acquisition unit)
32 Communication control unit (building information acquisition unit, facility information acquisition unit)

Claims (1)

Calculate the running power consumption from the current position to the building to which the moving body supplies power via the power supply facility from the current position, and also calculate the power consumption of the building, and the power consumption of the building for each time zone. A power consumption calculation unit that calculates a power supply amount from the moving body to the building based on a charge and a power supply charge in the power supply facility;
A charging amount calculation unit that calculates a facility charging power amount for charging the moving body at the power supply facility based on the remaining power amount of the moving body, the traveling power consumption amount, and the supplied power amount,
A charge amount calculation device comprising:

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