JP2022075350A - Charge management system, power management system, charge management method and program - Google Patents

Abstract

To provide a charge management system, power management system, charge management method and program which can execute a vehicle schedule of an electric vehicle and can secure a power amount necessary for each purpose in a storage battery.SOLUTION: A charge management system 2 comprises: an information acquisition unit 2a; and a charge control unit 2b. The information acquisition unit 2a acquires a vehicle schedule about an operation plan of the electric vehicle EV1 mounted with a storage battery B1 for driving that is charged by a charge device 4 at a workplace F1, home information about an electricity amount consumed in a house F2 where a user using the electric vehicle EV1 lives, and vehicle history information about the use history of the electric vehicle EV1. The charge control unit 2b controls charge of the storage battery B1 by the charge device 4 on the basis of at least vehicle schedule, home information and vehicle history information.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to charge management systems, power management systems, charge management methods, and programs.

Patent Document 1 discloses a power management device that utilizes a battery of a vehicle electrically connected to a facility.

The power management device manages the power in the facility configured so that the vehicle equipped with the battery can be electrically connected. The power management device stores a means for instructing charging / discharging of the battery, a setting means for setting a target range of the charging rate of the battery at the time of charging / discharging, and a storage for storing the charging rate of the battery at the time of charging / discharging. Means and. The instruction means suppresses the instruction to start discharging from the battery when the charge rate stored by the storage means is equal to or less than the lower limit of the target range, and the battery when the charge rate is equal to or more than the upper limit of the target range. Suppresses the instruction to start charging.

Japanese Unexamined Patent Publication No. 2020-150767

Electric vehicles (vehicles) may be used for multiple purposes such as business, commuting, and private use. When an electric vehicle equipped with a storage battery (battery) is used for multiple purposes, it is necessary to manage the charge of the storage battery so that the vehicle schedule of the electric vehicle can be executed and the amount of electric power required for each use can be secured in the storage battery. be.

Therefore, an object of the present disclosure is to provide a charge management system, a power management system, a charge management method, and a program capable of executing a vehicle schedule of an electric vehicle and securing an electric power required for each application in a storage battery. be.

The charge management system according to one aspect of the present disclosure includes an information acquisition unit and a charge control unit. The information acquisition unit was consumed at least in the vehicle schedule regarding the operation schedule of the electric vehicle equipped with the storage battery for driving charged by the charging device of the first facility, and in the second facility where the user who uses the electric vehicle resides. In-house information regarding the amount of electricity and vehicle history information regarding the usage history of the electric vehicle are acquired. The charge control unit controls charging of the storage battery by the charging device based on at least the vehicle schedule, the home information, and the vehicle history information.

The power management system according to one aspect of the present disclosure includes the above-mentioned charge management system and the above-mentioned charging device.

The charge management method according to one aspect of the present disclosure includes an information acquisition step and a charge control step. The information acquisition step was consumed at least in the vehicle schedule regarding the operation schedule of the electric vehicle equipped with the storage battery for driving charged by the charging device of the first facility, and in the second facility in which the user using the electric vehicle resides. In-house information regarding the amount of electricity and vehicle history information regarding the usage history of the electric vehicle are acquired. The charge control step controls charging of the storage battery by the charging device based on at least the vehicle schedule, the home information, and the vehicle history information.

The program according to one aspect of the present disclosure causes a computer system to execute the above-mentioned charge management method.

As described above, the present disclosure has the effect that the vehicle schedule of the electric vehicle can be executed and the amount of electric power required for each application can be secured in the storage battery.

FIG. 1 is a block diagram showing a power management system including a charge management system according to an embodiment. FIG. 2 is a sequence diagram showing normal operation in the same power management system. FIG. 3 is a sequence diagram showing an operation during charging in the same power management system.

The following embodiments generally relate to charge management systems, power management systems, charge management methods, and programs. More specifically, the present invention relates to a charge management system, a power management system, a charge management method, and a program capable of executing a vehicle schedule of an electric vehicle and securing an amount of electric power required for each application in a storage battery.

The following embodiments are merely examples of the embodiments of the present disclosure. The present disclosure is not limited to the following embodiments, and various changes can be made depending on the design and the like as long as the effects of the present disclosure can be achieved.

(1) Outline of Power Management System FIG. 1 shows the power management system 1 of the present embodiment. In this embodiment, the first facility is a workplace F1 and the second facility is a house F2. Employees working in workplace F1 (corresponding to the users of this disclosure) live in housing F2, commute between workplace F1 and housing F2, work based in workplace F1, and in housing F2. The electric vehicle EV1 is used for errands and private use such as holidays. That is, the employee uses the electric vehicle EV1 for commuting between the workplace F1 and the house F2, traveling with work based on the workplace F1, and private life. The electric vehicle EV1 is an automobile equipped with a rechargeable battery (secondary battery) as a storage battery B1. The electric vehicle EV1 travels by driving an electric motor using the stored electric power of the storage battery B1. That is, the storage battery B1 is a storage battery for driving the electric vehicle EV1. The storage battery B1 includes a lithium ion battery, a nickel / hydrogen battery, a lead storage battery, and the like.

The "electric vehicle" referred to in the present disclosure is configured to be equipped with a storage battery B1 and to travel using the electric energy stored in the mounted storage battery B1. In addition to the mode of traveling by the output of the electric motor, the electric vehicle EV1 may include a mode of traveling by combining the output of the engine and the output of the electric motor. The electric vehicle EV1 may include, for example, an electric vehicle, a plug-in hybrid electric vehicle, an electric motorcycle, an electric assisted bicycle, and the like.

The power management system 1 includes a charge management system 2 and a charging device 4.

The charging management system 2 and the charging device 4 are communicably connected to the external network NT1 including the Internet, and the charging management system 2 can communicate with the charging device 4. The charging device 4 is provided in the workplace F1 and charges the storage battery B1 of the electric vehicle EV1 existing in the workplace F1.

Further, it is preferable that at least one of the home controller 51, the EMS (Energy Management System) 52, the vehicle information database 53, the vehicle identification system 54, and the vehicle management system 55 is communicably connected to the external network NT1. ..

The home controller 51 is installed in the house F2 and constitutes a so-called HEMS (Home Energy Management System) controller.

The EMS 52 transmits a demand notification to the charge management system 2 based on the balance between the supply and demand of electric power in the electric power system supplying electric power to the area including the workplace F1. The charge management system 2 can control the charging of the storage battery B1 by the charging device 4 based on the demand notification.

The vehicle information database 53 stores each history such as the position information of the electric vehicle EV1 and the SOC (State Of Charge) information of the storage battery B1 mounted on the electric vehicle EV1 as vehicle history information.

The vehicle identification system 54 identifies the electric vehicle EV1 equipped with the storage battery B1 charged by the charging device 4 as a vehicle to be charged. For example, the vehicle identification system 54 generates at least one of the registration number and vehicle type of the vehicle to be charged as vehicle identification information.

The vehicle management system 55 stores a vehicle schedule (vehicle allocation schedule) related to the operation schedule of the electric vehicle EV1. The vehicle schedule is information such as a scheduled date and time and a destination where the electric vehicle EV1 is used for business such as sales, delivery, or movement to a construction site based on the workplace F1.

(2) Charge Management System The charge management system 2 shown in FIG. 1 includes an information acquisition unit 2a and a charge control unit 2b. The information acquisition unit 2a communicates with the charging device 4 of the workplace F1, the home controller 51, the EMS 52, the vehicle information database 53, the vehicle identification system 54, and the vehicle management system 55 via the external network NT1. The charge control unit 2b communicates with the charging device 4 of the workplace F1 via the external network NT1.

Then, the information acquisition unit 2a is a vehicle regarding a vehicle schedule regarding the operation schedule of the electric vehicle EV1, in-house information regarding the amount of electricity consumed in the house F2 in which the employee using the electric vehicle EV1 resides, and a vehicle regarding the usage history of the electric vehicle EV1. Get history information. The charge control unit 2b controls the charge of the storage battery B1 by the charging device 4 based on at least the vehicle schedule, the home information, and the vehicle history information. Such a charge management system 2 can execute the vehicle schedule of the electric vehicle EV1 and can secure the electric energy required for each application in the storage battery B1.

Further, it is preferable that the charge management system 2 further includes a billing unit 2c. The charging unit 2c charges for the charged electric power, which is the amount of electric power charged by the charging device 4 to the storage battery B1.

The charge management system 2 preferably includes a computer system such as a microcomputer. In this case, the charge management system 2 realizes a part or all of the functions of the information acquisition unit 2a, the charge control unit 2b, and the charge unit 2c by executing the program stored in the memory by the computer system. A computer has a processor that operates according to a program as a main hardware configuration. The type of processor does not matter as long as the function can be realized by executing the program. The processor is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or an LSI (Large Scale Integration). Here, it is called IC or LSI, but the name changes depending on the degree of integration, and it may be called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). A field programmable gate array (FPGA) programmed after the LSI is manufactured, or a reconfigurable logic device that can reconfigure the junction relationships inside the LSI or set up a circuit partition inside the LSI may also be used for the same purpose. Can be done. The plurality of electronic circuits may be integrated on one chip or may be provided on a plurality of chips. The program is recorded on a non-temporary recording medium such as a computer-readable ROM, optical disc, or hard disk drive. The program may be stored in a non-temporary recording medium in advance, or may be supplied to the non-temporary recording medium via a wide area communication network including the Internet or the like. Such a computer system is composed of, for example, a server device. In addition, at least some functions of the computer system may be realized by cloud computing technology.

(3) Charging device The charging device 4 is a storage battery mounted on the electric vehicle EV1 by using power from a power source such as a commercial power source or a distributed power source (solar cell, storage battery, fuel cell, wind generator, etc.). B1 can be charged.

Specifically, the charging device 4 is a charging cable constituting a power conversion unit that converts power from a power source such as a commercial power source or a distributed power source into charging power, and a power supply path that transmits the charging power output by the power conversion unit. And. At the tip of the charging cable, a charging connector that is detachably connected to the power supply port (charging inlet) of the electric vehicle EV1 is provided. When the charging connector is connected to the power supply port of the electric vehicle EV1, the charging device 4 starts charging the storage battery B1 and charges the storage battery B1 until the SOC (State Of Charge) reaches the target value.

In the present embodiment, the charging device 4 is configured to be communicable with the charging management system 2 via the external network NT1, and receives a charging instruction signal Y13 (see FIG. 3) from the charging control unit 2b of the charging management system 2. be able to. When the charging device 4 receives the charging instruction signal Y13 from the charging control unit 2b, the charging device 4 charges the storage battery B1 based on the received charging instruction signal Y13. For example, the charging device 4 sets a target value of SOC of the storage battery B1 based on the charging instruction signal Y13. If the charging device 4 does not have the charging instruction signal Y13, the charging device 4 can charge the storage battery B1 by setting the charging device 4 alone.

The charging device 4 stores unique identification information previously given to the charging device 4 as a charging device ID (charging device identification information). Then, when the charging of the storage battery B1 is completed, the charging device 4 transmits a charging completion signal Y14 (see FIG. 3) including the charging device ID to the charging management system 2 via the external network NT1. Even if the charging device 4 includes charging information such as the storage amount (remaining capacity) of the storage battery B1 at the time of charging completion and the power amount (charging amount) supplied from the charging device 4 to the storage battery B1, the charging completion signal Y14 good.

(4) Home controller The home controller 51 is installed in the house F2 and constitutes a so-called HEMS controller.

Specifically, the in-house controller 51 is communicably connected to the in-house network of the house F2, and the flow of electric power (the amount of electricity purchased, the amount of electricity sold, the amount of power generation, and the amount of electricity stored) in the house F2 is visualized, and the inside of the house F2. Monitors and controls equipment (for example, lighting equipment, air conditioning equipment, security equipment, etc.).

Further, the electric vehicle EV1 used by an employee residing in the house F2 to commute to the workplace F1 is given identification information such as a registration number in advance as a vehicle ID (vehicle identification information). The home controller 51 stores the data of the vehicle ID of the electric vehicle EV1 corresponding to the house F2.

Then, the home controller 51 transmits a home information signal Y1 (see FIG. 2) in which home information such as the flow of electric power in the house F2 and the state of the equipment in the house F2 is associated with the vehicle ID via the external network NT1. It is transmitted to the charge management system 2.

(5) EMS
The EMS 52 constitutes a BEMS (Building Energy Management System), a FEMS (Factory Energy Management System), or a CEMS (Community Energy Management System), manages the demand and supply of power in the power system of the area, and manages the power in the area. Adjust the supply and demand of. The BEMS area is a building containing the workplace F1, the FEMS area is a factory containing the workplace F1, and the CEMS area is an area including the workplace F1.

For example, the EMS 52 predicts, plans, controls, power peak cuts, peak shifts, and the like by demand response for forecasting, planning, and controlling power demand and supply in an area. Then, the EMS 52 transmits a demand response signal (hereinafter abbreviated as DR signal) requesting each electric power consumer in the area to suppress or increase the electric power demand or increase or decrease the amount of electric power sold via the external network NT1. do. Each electric power consumer adjusts the electric power demand and the amount of electric power sold according to the DR signal.

(6) Vehicle information database The electric vehicle EV1 can communicate with the vehicle information database 53 via the external network NT1 by performing wireless communication using a wireless LAN (Local Network System) or a mobile communication network. .. The electric vehicle EV1 stores a vehicle ID such as a registration number assigned in advance to the electric vehicle EV1. Then, the electric vehicle EV1 uses the vehicle ID, the storage battery information including the SOC of the storage battery B1, the position information using GPS (Global Positioning System), the mileage information, and the like as the vehicle information Y2 (see FIG. 2) in the vehicle information database. Send to 53.

When the vehicle information database 53 receives the vehicle information Y2, the vehicle information database 53 stores the storage battery information, the position information, the mileage information, and the like in association with each vehicle ID. That is, the vehicle information database 53 stores each history such as the SOC of the storage battery B1, the position of the electric vehicle EV1, and the mileage of the electric vehicle EV1 as the vehicle history information Y3. Then, the vehicle information database 53 transmits the vehicle history information Y3 (see FIG. 2) including the vehicle information Y2 to the charge management system 2 via the external network NT1.

(7) Vehicle identification system In the workplace F1, the charging device 4 is installed in the parking lot of the electric vehicle EV1 and charges the electric vehicle EV1 parked in the parking lot. The vehicle identification system 54 has a function of identifying the electric vehicle EV1 charged by the charging device 4.

Specifically, the vehicle identification system 54 includes a camera, and the camera is arranged at a position where the license plate (vehicle registration number plate) of the electric vehicle EV1 is photographed. When the charging device 4 starts charging, the camera takes an image of the electric vehicle EV1 parked in the parking lot. That is, the camera photographs the electric vehicle EV1 charged by the charging device 4. The vehicle identification system 54 discriminates the vehicle ID (registration number) of the electric vehicle EV1 by performing image processing on the captured image of the electric vehicle EV1, and generates the discrimination result as the vehicle identification information. Further, the vehicle identification system 54 stores a charging device ID assigned in advance to the charging device 4. Therefore, the vehicle identification system 54 associates (associates) the vehicle ID of the electric vehicle EV1 charged by the charging device 4 with the charging device ID of the charging device 4 and stores it.

Further, the vehicle identification system 54 may include a communication device that communicates with an in-vehicle device mounted on a vehicle using ETC (Electronic Toll Collection System). In this case, the communication device of the vehicle identification system 54 acquires data such as the registration number of the electric vehicle EV1 from the electric vehicle EV1 by communicating with the on-board unit of the electric vehicle EV1 parked in the parking lot.

Then, the vehicle identification system 54 transmits a vehicle identification signal Y11 (see FIG. 3) in which the vehicle ID of the electric vehicle EV1 is associated with the charging device ID of the charging device 4 to the charging management system 2 via the external network NT1. ..

(8) Vehicle management system The vehicle management system 55 has a function of managing the vehicle schedule of the electric vehicle EV1. The vehicle schedule indicates the operation schedule of the electric vehicle EV1, and is information such as the scheduled date and time and the destination where the electric vehicle EV1 is used for business such as sales, delivery, or movement to a construction site based on the workplace F1. The vehicle management system 55 stores the vehicle schedule in advance by associating it with the vehicle ID of the corresponding electric vehicle EV1.

Then, the vehicle management system 55 transmits a schedule signal Y5 (see FIG. 2) in which the vehicle ID is associated with the vehicle schedule to the charge management system 2 via the external network NT1.

(9) Power Management and Charge Management Hereinafter, the power management operation of the power management system 1 and the charge management operation of the charge management system 2 will be described with reference to FIGS. 2 and 3.

(9.1) Normal time Normally, as shown in FIG. 2, the charge management system 2 receives various information from the home controller 51, the EMS 52, the vehicle information database 53, and the vehicle management system 55 periodically or when an event occurs. Acquire (S1). The timing and order in which the charge management system 2 acquires various information from the home controller 51, EMS 52, vehicle information database 53, and vehicle management system 55 is not limited to a specific form, and may vary as appropriate.

Specifically, the home controller 51 transmits the home information signal Y1 to the charge management system 2 via the external network NT1. The home information signal Y1 is information in which the vehicle ID is associated with home information such as the flow of electric power in the house F2 and the state of the equipment in the house F2. The flow of electric power includes a history of the amount of electricity purchased, the amount of electricity sold, the amount of power generation, the amount of electricity stored, and the like in the house F2. The state of the device includes the history of the operation, stop, and various settings of the device (for example, lighting device, air conditioner, security device, etc.) in the house F2. The information acquisition unit 2a of the charge management system 2 receives the in-home information signal Y1 via the external network NT1. Therefore, the charge management system 2 can grasp the history of the amount of electricity (electric power or electric energy) consumed in the house F2 based on the in-house information. Further, the charge management system 2 can also associate the state of the device with the history of the amount of electricity consumed in the house F2 based on the home information. In addition, the charge management system 2 can grasp the correspondence relationship between the home information and the vehicle ID.

The electric vehicle EV1 uses the vehicle ID of the electric vehicle EV1, the storage battery information of the storage battery B1 mounted on the electric vehicle EV1, the position information and the mileage information of the electric vehicle EV1 as the vehicle information Y2. The electric vehicle EV1 transmits the vehicle information Y2 to the vehicle information database 53 via the external network NT1. The vehicle information database 53 stores the vehicle information Y2 received from the electric vehicle EV1 and stores the plurality of vehicle information Y2 sequentially received as the vehicle history information Y3. The vehicle information database 53 periodically transmits the vehicle history information Y3 to the charge management system 2 via the external network NT1. The information acquisition unit 2a of the charge management system 2 receives the vehicle history information Y3 via the external network NT1. Therefore, the charge management system 2 can grasp the vehicle ID of the electric vehicle EV1, the amount of electricity stored in the storage battery B1, the degree of deterioration, the travel route and the travel distance of the electric vehicle EV1, and the like, based on the vehicle history information Y3.

The EMS 52 transmits a DR signal Y4 requesting suppression or increase of electric power demand in the electric power system, or increase or decrease of the amount of electric power sold to the charge management system 2 via the external network NT1. The information acquisition unit 2a of the charge management system 2 receives the DR signal Y4 via the external network NT1.

The vehicle management system 55 transmits a schedule signal Y5 in which the vehicle schedule of the electric vehicle EV1 is associated with the vehicle ID of the electric vehicle EV1 to the charge management system 2 via the external network NT1. The information acquisition unit 2a of the charge management system 2 receives the schedule signal Y5 via the external network NT1.

As described above, the charge management system 2 normally receives the home information signal Y1, the vehicle history information Y3, the DR signal Y4, and the schedule signal Y5 via the external network NT1. The in-house information signal Y1 includes in-house information (power flow in the house F2, state of equipment in the house F2, etc.) associated with the vehicle ID. The vehicle history information Y3 includes each history such as battery information, position information, and mileage information in addition to the vehicle ID. The DR signal Y4 is a signal for requesting suppression or increase of electric power demand, or increase or decrease of electric power sales amount, and is a signal for suppressing the imbalance between electric power supply and demand in the area including the workplace F1. be. The schedule signal Y5 includes vehicle schedule information associated with the vehicle ID.

(9.2) Charging The power management operation and the charging management operation when the charging device 4 charges the storage battery B1 of the electric vehicle EV1 will be described with reference to FIG.

First, when the electric vehicle EV1 parks in the parking lot of the workplace F1, the vehicle identification system 54 identifies the electric vehicle EV1 and generates a vehicle identification signal Y11 of the electric vehicle EV1 (S11). Then, the vehicle identification system 54 transmits the vehicle identification signal Y11 to the charge management system 2 via the external network NT1. The vehicle identification signal Y11 includes information in which the charging device ID of the charging device 4 is associated with the vehicle ID of the electric vehicle EV1. The information acquisition unit 2a of the charge management system 2 receives (acquires) the vehicle identification signal Y11 via the external network NT1 (S12).

That is, the charge management system 2 acquires the home information signal Y1, the vehicle history information Y3, and the schedule signal Y5 at normal times, and acquires the vehicle identification signal Y11 when the electric vehicle EV1 parks in the parking lot of the workplace F1. Each of the home information signal Y1, the vehicle history information Y3, the schedule signal Y5, and the vehicle identification signal Y11 includes the vehicle ID of the electric vehicle EV1, and the common vehicle ID includes the home information, the vehicle history information, and the vehicle schedule. Be tied. That is, the charge management system 2 can associate the vehicle ID of the electric vehicle EV1 with the home information, the vehicle history information, and the vehicle schedule.

(9.2.1) Charging control When the charging connector of the charging device 4 is connected to the power supply port of the electric vehicle EV1 stopped in the parking lot and the charging operation is performed (S13), the charging device 4 is externally connected. The charge start request Y12 is transmitted to the charge management system 2 via the network NT1. Upon receiving the charge start request Y12, the charge control unit 2b of the charge management system 2 generates a charge instruction signal Y13 instructing the charging device 4 to charge the storage battery B1. The charging instruction signal Y13 includes, for example, data of a target value of SOC of the storage battery B1. That is, the charge control unit 2b controls the charging of the storage battery B1 by the charging device 4 by transmitting the charging instruction signal Y13 to the charging device 4 (S14).

Hereinafter, charge control using the charge device 4 by the charge control unit 2b will be described.

(Amount of electricity in the house)
As described above, the charge management system 2 can associate the in-house information and the vehicle history information with the vehicle ID of the electric vehicle EV1. Then, the charge control unit 2b sets the electric vehicle EV1 of the vehicle ID notified by the vehicle identification signal Y11 as the vehicle to be charged, and uses the in-house information corresponding to the vehicle ID of the electric vehicle EV1 (in this case, the in-house information of the house F2). Based on this, the amount of electric power consumed in the house F2 within a predetermined period after the completion of charging can be predicted as the amount of electric energy in the house. That is, the charge control unit 2b refers to the in-house information of the house F2 and predicts the in-house electric energy amount in a predetermined period after the completion of charging based on the history of the electric energy (electric energy or electric energy amount) consumed in the house F2. be able to. For example, the charge control unit 2b predicts the amount of electric power consumed in the house F2 during the period from when the employee returns to the house F2 to the next commute, based on the history of the amount of electricity consumed in the house F2. do. The charge control unit 2b can estimate the return time and the work time of the employee based on the home information, and predicts the electric energy in the house by using the estimation result of the return time and the work time.

The house F2 is provided with a charge / discharger (V2H: Vehicle to Home) capable of bidirectionally transmitting electric power between the electric vehicle EV1 and the power conditioner of the house F2, and the storage battery B1 is provided with the charge / discharger. It is preferable to use stored power.

(Vehicle power)
As described above, the charge management system 2 can associate the vehicle history information and the vehicle schedule with the vehicle ID of the electric vehicle EV1. Then, the charge control unit 2b sets the electric vehicle EV1 of the vehicle ID notified by the vehicle identification signal Y11 as the vehicle to be charged, and after charging is completed based on the vehicle history information and the vehicle schedule corresponding to the vehicle ID of the electric vehicle EV1. The amount of electric power consumed by the electric vehicle EV1 within a predetermined period of the above can be predicted as the amount of electric power of the vehicle. That is, the charge control unit 2b refers to the vehicle history information of the electric vehicle EV1 and the vehicle schedule, and is required after charging is completed based on the history of the amount of electricity (electric power or electric energy) consumed by the running of the electric vehicle EV1. The amount of vehicle power can be predicted. For example, the charge control unit 2b consumes the electric vehicle EV1 until it returns to the workplace F1 after charging is completed, based on the history of the position information of the electric vehicle EV1, the history of the SOC information of the storage battery B1, and the vehicle schedule. Predict the amount of vehicle power.

(Charging instruction)
The charge control unit 2b obtains an SOC that can secure the total of the predicted value of the in-house electric power amount and the predicted value of the vehicle electric power amount as the target value of the SOC of the storage battery B1.

For example, when an employee finishes working at the workplace F1, he / she drives the electric vehicle EV1 and returns home from the workplace F1 to the house F2. The storage battery B1 is mounted on the electric vehicle EV1, and the stored power of the storage battery B1 can be used in the house F2. Therefore, the employee charges the storage battery B1 by using the charging device 4 before returning home from the workplace F1 to the house F2. In this case, the charge control unit 2b predicts the amount of electric power consumed in the house F2 during the period from returning to the house F2 to the next commuting as the amount of electric power in the house. Further, the charge control unit 2b predicts the amount of electric power required for the round trip (commuting) between the workplace F1 and the house F2 as the amount of electric power of the vehicle. Then, the charge control unit 2b sets the target value of the SOC of the storage battery B1 so as to secure the amount of electric power consumed in the house and the amount of electric power required for commuting in the house F2.

Further, the employee who arrives at the workplace F1 may charge the storage battery B1 by using the charging device 4 when starting the work. In this case, the charge control unit 2b refers to the vehicle schedule and determines whether or not the electric vehicle EV1 will return to the workplace F1 by the end time.

If the electric vehicle EV1 returns to the workplace F1 by the end time, the charge control unit 2b refers to the vehicle schedule and the route until the electric vehicle EV1 departing from the workplace F1 returns to the workplace F1 again. The amount of electric power that can be driven is predicted as the amount of electric power required for business. If the electric vehicle EV1 returns to the workplace F1 by the end time, the charge control unit 2b predicts that the amount of electric power in the house is 0. Then, the charge control unit 2b sets the SOC target value of the storage battery B1 as the SOC target value so that the vehicle electric power required for business can be secured.

If the electric vehicle EV1 finishes the work, the charge control unit 2b refers to the vehicle schedule and directly returns to the house F2 after the electric vehicle EV1 leaving the workplace F1 finishes the work. The amount of electric energy that can be traveled on the route to work F1 on the next day is predicted as the amount of electric energy required for work and commuting. Further, the charge control unit 2b predicts the amount of electric power consumed in the house F2 during the period from returning to the house F2 to the next commuting as the amount of electric power in the house. Then, the charge control unit 2b sets the SOC target value of the storage battery B1 so as to secure the vehicle electric power required for work and commuting and the in-house electric power consumed by the house F2.

Further, when the employee finishes working at the workplace F1 on the day before the holiday, he / she drives the electric vehicle EV1 to return home from the workplace F1 to the house F2, and on the holidays, he / she drives the electric vehicle EV1 to go out. Therefore, the employee charges the storage battery B1 by using the charging device 4 before returning home from the workplace F1 to the house F2. In this case, the charge control unit 2b predicts the amount of electric power consumed in the house F2 during the period from returning to the house F2 to the next commuting as the amount of electric power in the house. Further, the charge control unit 2b predicts the amount of electric power required for the round trip (commuting) between the workplace F1 and the house F2 as the amount of electric power of the vehicle. Further, the charge control unit 2b predicts the amount of electric power required for going out on a holiday as the amount of electric power of the vehicle. Then, the charge control unit 2b secures the amount of in-house electric power consumed in the house F2, the amount of vehicle electric power required for commuting, and the amount of vehicle electric power required for going out on holidays as the target value of the SOC of the storage battery B1. Set the target value of.

Then, the charge control unit 2b generates a charge instruction signal Y13 including the data of the SOC target value of the storage battery B1 in order to control the charge of the storage battery B1 by the charge device 4, and sends the charge instruction signal Y13 to the charge device 4. Transmit (S14).

Upon receiving the charging instruction signal Y13, the charging device 4 starts charging the storage battery B1 and charges the storage battery B1 until the SOC (State Of Charge) reaches the target value (S15). When the charging of the storage battery B1 is completed, the employee removes the charging connector of the charging device 4 from the power supply port of the electric vehicle EV1.

When the charging of the storage battery B1 of the electric vehicle EV1 is completed, the charging device 4 generates a charging completion signal Y14 and transmits the charging completion signal Y14 to the charging management system 2 via the external network NT1.

In this way, the charge management system 2 obtains the vehicle electric energy amount and the in-house electric energy amount with reference to the vehicle schedule of the electric vehicle EV1. Therefore, the charge management system 2 can execute the vehicle schedule of the electric vehicle EV1 and can secure the electric energy required for each application in the storage battery B1.

Employees also use the electric vehicle EV1 for both work during working hours and for private use during non-working hours. Therefore, the electric energy of the vehicle can be divided into the electric energy of the first vehicle and the electric energy of the second vehicle. The first vehicle electric energy is the electric energy used for the electric vehicle EV1 to travel on the route including the workplace F1. That is, the first vehicle electric energy is the electric energy used for commuting and business among the electric energy of the vehicle. The second vehicle electric energy is the electric energy used for the electric vehicle EV1 to travel on a route that does not include the workplace F1. That is, the second vehicle electric energy is the electric energy used for private use such as holidays among the electric energy of the vehicle.

Then, the charge control unit 2b sends a charge instruction signal Y13 so that the charging speed of the first vehicle electric energy by the charging device 4 and the charging speed of the second vehicle electric energy and the in-house electric energy by the charging device 4 are different. It is preferable to generate. Specifically, the charge control unit 2b makes the charging speed when charging the first vehicle electric energy into the storage battery B1 faster than the charging speed when charging the second vehicle electric energy and the in-house electric energy into the storage battery B1. do. That is, the charge control unit 2b increases the charging current when charging the first vehicle electric energy to the storage battery B1 as compared with the charging current when charging the second vehicle electric energy and the in-house electric energy to the storage battery B1. For example, when charging the storage battery B1, the charge control unit 2b increases the charging speed until the stored amount of the storage battery B1 exceeds the electric energy of the first vehicle, and when the stored amount exceeds the electric energy of the first vehicle, the charge is charged. Slow down. As a result, the amount of electric power of the first vehicle required for business and commuting is shorter than the amount of electric power of the second vehicle and the amount of electric power in the house, which are not related to business, and the charging time per unit electric energy is shortened to improve the efficiency of business. be able to.

Further, if the charge management system 2 receives the DR signal Y4 (see FIG. 2) from the EMS 52, the charge control unit 2b receives a charge instruction signal for instructing the charging device 4 to charge the storage battery B1 in response to the DR signal Y4. Generate Y13. In this case, the charging instruction signal Y13 is a signal for suppressing the imbalance between the supply and demand of electric power in the area including the workplace F1.

For example, when the demand for electric power in the area including the workplace F1 becomes tight to the maximum power supply, the DR signal Y4 requests that the electric power demand in the area be reduced. Therefore, the charge instruction signal Y13 instructs the storage battery B1 to make the charge current smaller than usual.

Further, when the demand for electric power in the area becomes excessively low, the DR signal Y4 requests that the demand for electric power in the area be increased. Therefore, the charge instruction signal Y13 instructs to increase the charge current of the storage battery B1 more than usual.

Further, when the amount of power generated by distributed power sources such as solar panels, wind power generation devices, and geothermal power generation devices in the area becomes excessively large, the DR signal Y4 requests that the power demand in the area be increased. Therefore, the charge instruction signal Y13 instructs to increase the charge current of the storage battery B1 more than usual.

Therefore, the charge management system 2 can balance the supply and demand of electric power in the area including the workplace F1.

It is preferable that the charge control unit 2b includes the information of the time zone in which the charging device 4 charges the storage battery B1 in the charging instruction signal Y13 based on the electricity rate plan applied to the workplace F1. For example, it is assumed that an employee who has come to work at the workplace F1 works at the workplace F1 with the electric vehicle EV1 parked in the parking lot. In this case, the charge control unit 2b generates a charge instruction signal Y13 that indicates a time zone in which the unit price of electricity is low during the working hours of the employee as a charge execution time zone. Therefore, the charging cost by the charging device 4 can be reduced.

Further, the information acquisition unit 2a further acquires the charge amount instructed by the operation of the information terminal by the employee as operation information, and the charge control unit 2b charges the storage battery B1 by the charging device 4 based on the operation information. You may control it. The information terminal is either a device attached to the charging device 4, a smartphone carried by an employee, a mobile phone, a tablet terminal, or the like. In this case, the employee estimates the amount of electric power to be used for business and private use, and inputs the amount of electric power that is considered necessary to the information terminal. The information terminal transmits operation information instructing the input electric energy amount as the charge amount to the charge management system 2 via the external network NT1, and the information acquisition unit 2a acquires the operation information. In this case, the intention of the employee is reflected in the charge amount, and the charge control according to the intention of the employee is realized.

(9.2.2) Billing The billing unit 2c receives a charge completion signal Y14 from the charging device 4. Then, when the charging unit 2c receives the charging completion signal Y14, the charging unit 2 charges the charging electric energy, which is the electric energy charged by the charging device 4 to the storage battery B1 (S16). The billing unit 2c transmits data related to the electricity bill of the charged electric energy to an accounting server (not shown), and the accounting server performs payment processing and billing processing. Therefore, the charge management system 2 can recover the consideration for the amount of charge power generated by the charging device 4.

For example, if the charge power amount is equal to or less than the threshold value, the charging unit 2c makes the charge for the charge power amount free, and if the charge power amount exceeds the threshold value, the charge for the excess power amount obtained by subtracting the threshold value from the charge power amount is charged. Is preferable. Specifically, the workplace F1 bears the electricity bill up to the threshold value as a necessary expense for the employee out of the charge amount by one charge. On the other hand, of the amount of charge for one charge, the electricity bill exceeding the threshold value will be borne by the employee. The billing unit 2c sends each data of the electricity bill covered by the necessary expenses borne by the workplace F1 and the electricity bill borne by the employee to an accounting server (not shown), and the accounting server performs payment processing and billing processing. conduct. Therefore, the charge management system 2 can recover the consideration for the amount of power charged by the charging device 4 while implementing the welfare of the employee.

Further, the billing unit 2c may charge free of charge for the above-mentioned first vehicle electric energy amount and charge for the above-mentioned second vehicle electric energy amount and in-house electric energy amount. The first vehicle electric energy is the amount of electricity used for commuting and business among the vehicle electric energy, and the workplace F1 bears the electricity bill of the first vehicle electric energy. On the other hand, the first vehicle electric energy is the amount of electricity used for private use such as holidays among the vehicle electric energy, and the employee bears the electricity bill of the second vehicle electric energy. Further, the amount of electric power in the house is the amount of electric power consumed in the employee's house F2, and the employee bears the electricity bill of the amount of electric power in the house. The billing unit 2c transmits each data of the electricity bill of the first vehicle electric energy borne by the workplace F1 and the electricity bill of the second vehicle electric energy and the in-house electric energy borne by the employee to an accounting server (not shown). , Payment processing and billing processing are performed on the accounting server. While implementing employee welfare, the compensation for the amount of power charged by the charging device 4 can be recovered.

As described above, the computer system included in the charge management system 2 executes the charge management method including the information acquisition step S1 and the charge control step S14 (see FIGS. 2 and 3). In the information acquisition step S1, a vehicle schedule (schedule signal Y5) relating to an operation schedule of the electric vehicle EV1 equipped with a drive storage battery B1 charged by the charging device 4 of the workplace F1 and an employee using the electric vehicle EV1 reside. In-house information (in-house information signal Y1) regarding the amount of electricity consumed in the house F2 and vehicle history information Y3 regarding the usage history of the electric vehicle EV1 are acquired. The charge control step S14 controls charging of the storage battery B1 by the charging device 4 based on at least the vehicle schedule, the home information, and the vehicle history information Y3.

Therefore, the above-mentioned charge management system 2 can execute the vehicle schedule of the electric vehicle EV1 and can secure the electric energy required for each application in the storage battery B1.

Further, in the house F2, the electric power charged in the storage battery B1 at the workplace F1 can be used. At this time, if the workplace F1 has a contract with the electric power company for high-voltage collective power reception, the electricity rate unit price of the electric power used by the charging device 4 is lower than the electricity rate unit price of the house F2 having an individual contract (low-voltage contract). Therefore, the workplace F1 charges the resident of the house F2 for the cost of the electric power used in the house F2, so that the electricity cost of the house F2 can be suppressed.

Further, in the present embodiment, the electric vehicle EV1 equipped with the storage battery B1 is used as a carrier for carrying electric power. Residents of the house F2 can also use the electric power supplied to the workplace F1 at low cost in the house F2. Therefore, the choice of electric power used in the house F2 is increased, and the efficiency of electric power use can be improved.

Further, if the workplace F1 uses renewable energy such as solar power, wind power, or geothermal power to generate electricity, the charging device 4 uses the surplus power generated by the renewable energy as the storage battery of the electric vehicle EV1. B1 may be charged. In this case, even if the house F2 does not have a distributed power source such as a solar panel, the electric power generated by using the renewable energy in the workplace F1 can be used in the house F2. In other words, by actively using renewable energy, it is possible to contribute to environmental conservation. Further, by using renewable energy, it is possible to set a low billing amount when billing the resident of the house F2 for the cost of the electric power used in the house F2.

(10) Modification example In the power management system 1 and the charge management system 2, one employee uses one electric vehicle EV1 for both business and private use, and a plurality of employees use one electric vehicle. It is applicable to both the form in which EV1 is used for both business and private use.

The vehicle information Y2 (see FIG. 2) does not have to include storage battery information such as the SOC of the storage battery B1. In this case, the charge control unit 2b estimates the storage battery information such as the SOC of the storage battery B1 based on the position information and the mileage information of the electric vehicle EV1 included in the vehicle history information Y3.

Further, the charging device 4 may acquire storage battery information such as the SOC of the storage battery B1 from the electric vehicle EV1 and notify the charging management system 2. Communication between the charging device 4 and the electric vehicle EV1 is realized by wired communication or wireless communication via the charging cable of the charging device 4. Wireless communication is, for example, wireless communication conforming to standards such as Wi-Fi (registered trademark), Bluetooth (registered trademark), Zig Bee (registered trademark) or low power radio (specified low power radio) that does not require a license, or Infrared communication, etc.

Further, the charge management system 2 may perform charge management of the plurality of storage batteries B1 with each storage battery B1 of the plurality of electric vehicles EV1 moving back and forth between the plurality of workplaces F1 and the plurality of houses F2 as a management target. ..

Further, the first facility is not limited to the workplace F1 and may be a facility other than the workplace F1. The second facility is not limited to the house F2, and may be a facility other than the house F2. Facilities include apartment houses, detached houses, factories, office buildings, commercial buildings, stores and the like.

Further, the storage battery B1 of the electric vehicle EV1 is charged at least in the workplace F1 which is the first facility, and can be charged not only in the workplace F1 but also in the house F2, the charging stand and the like.

(11) Summary As described above, the charge management system (2) of the first aspect according to the embodiment includes an information acquisition unit (2a) and a charge control unit (2b). The information acquisition unit (2a) has a vehicle schedule regarding the operation schedule of the electric vehicle (EV1) equipped with the drive storage battery (B1) charged by the charging device (4) of the first facility (F1), and the electric vehicle (2a). In-house information on the amount of electricity consumed in the second facility (F2) in which the user using EV1) resides, and vehicle history information on the usage history of the electric vehicle (EV1) are acquired. The charge control unit (2b) controls charging of the storage battery (B1) by the charging device (4) based on at least the vehicle schedule, home information, and vehicle history information.

The above-mentioned charge management system (2) can execute the vehicle schedule of the electric vehicle (EV1), and can secure the amount of electric power required for each application in the storage battery (B1).

In the charge management system (2) of the second aspect according to the embodiment, in the first aspect, the charge control unit (2b) determines the amount of in-house electric energy consumed in the second facility (F2) based on the in-house information. Obtaining, obtaining the vehicle electric energy consumed by the electric vehicle (EV1) based on the vehicle history information, and controlling the charging of the storage battery (B1) by the charging device (4) based on the in-house electric energy amount and the vehicle electric energy amount. Is preferable.

The above-mentioned charge management system (2) can charge the storage battery (B1) so that the electric vehicle (EV1) and the second facility (F2) can each secure the required electric power.

In the charge management system (2) of the third aspect according to the embodiment, in the second aspect, the vehicle electric energy is used for the electric vehicle (EV1) to travel on the route including the first facility (F1). The electric energy of the first vehicle and the electric energy of the second vehicle used for the electric vehicle (EV1) to travel on the route not including the first facility (F1) are included. The charge control unit (2b) stores the charging speed when the charging device (4) charges the first vehicle electric energy to the storage battery (B1), and the charging device (4) stores the second vehicle electric energy and the in-house electric energy. It is preferable that the charging speed is higher than the charging speed when charging (B1).

In the above-mentioned charge management system (2), the amount of power required for the first vehicle for business is shorter than the amount of power for the second vehicle and the amount of power in the house that are not related to business, and the charging time per unit power amount is shorter. It is possible to improve the efficiency of.

In the charge management system (2) of the fourth aspect according to the embodiment, in any one of the first to third aspects, the charge control unit (2b) is the electric power in the area including the first facility (F1). It is preferable to control the charging of the storage battery (B1) by the charging device (4) based on the balance between the supply and demand of the above.

The charge management system (2) described above can balance the supply and demand of electric power in the area including the first facility (F1).

In the charge management system (2) of the fifth aspect according to the embodiment, in any one of the first to fourth aspects, the information acquisition unit (2a) charges the amount of charge instructed by the operation of the information terminal. It is preferable to further acquire it as operation information. The charge control unit (2b) controls charging of the storage battery (B1) by the charging device (4) based on the operation information.

In the above-mentioned charge management system (2), the user's intention is reflected in the charge amount, and charge control according to the user's intention is realized.

The charging management system (2) of the sixth aspect according to the embodiment is the charging power which is the amount of power charged by the charging device (4) to the storage battery (B1) in any one of the first to fifth aspects. It is preferable to further include a charging unit (2c) that charges for the amount.

The above-mentioned charge management system (2) can recover the consideration for the amount of charge power generated by the charging device (4).

In the charge management system (2) of the seventh aspect according to the embodiment, in the sixth aspect, if the charge power amount is equal to or less than the threshold value, the charging unit (2c) charges the charge power amount free of charge. If the amount of electric power exceeds the threshold value, it is preferable to charge for the amount of excess electric power obtained by subtracting the threshold value from the amount of charge power.

The above-mentioned charge management system (2) can recover the consideration for the amount of charge power by the charging device (4) while implementing employee welfare.

The charging management system (2) according to the eighth aspect according to the embodiment is a charging unit that charges for the charging electric energy, which is the electric energy charged by the charging device (4) to the storage battery (B1) in the third aspect. It is preferable to further provide (2c). The billing unit (2c) makes the consideration for the first vehicle electric energy free of charge, and charges the consideration for the second vehicle electric energy amount and the in-house electric energy amount.

The above-mentioned charge management system (2) can recover the consideration for the amount of charge power by the charging device (4) while implementing employee welfare.

In the charge management system (2) of the ninth aspect according to the embodiment, in any one of the first to eighth aspects, the user is an employee of the first facility (F1) and the first facility (F1). F1) is a workplace where employees drive an electric vehicle (EV1) to commute from the second facility (F2), and in the second facility (F2), employees drive an electric vehicle (EV1). It is preferable that the house returns home from one facility (F1).

In the above-mentioned charge management system (2), the electric power charged in the workplace (F1) is carried to the house (F2) by the electric vehicle (EV1), so that the options of the electric power used in the house (F2) are increased. As a result, the efficiency of electric power utilization can be improved.

The power management system (1) according to the tenth aspect according to the embodiment includes a charge management system (2) according to any one of the first to ninth embodiments, and a charging device (4).

The above-mentioned electric power management system (1) can execute the vehicle schedule of the electric vehicle (EV1), and can secure the electric energy required for each application in the storage battery (B1).

The charge management method of the eleventh aspect according to the embodiment includes an information acquisition step (S1) and a charge control step (S14). The information acquisition step (S1) includes a vehicle schedule related to the operation schedule of the electric vehicle (EV1) equipped with the drive storage battery (B1) charged by the charging device (4) of at least the first facility (F1), and the electric vehicle (Electric vehicle). In-house information on the amount of electricity consumed in the second facility (F2) in which the user using EV1) resides, and vehicle history information on the usage history of the electric vehicle (EV1) are acquired. The charge control step (S14) controls charging of the storage battery (B1) by the charging device (4) based on at least the vehicle schedule, home information, and vehicle history information.

In the above-mentioned charge management method, the vehicle schedule of the electric vehicle (EV1) can be executed, and the amount of electric power required for each application can be secured in the storage battery (B1).

The program of the twelfth aspect according to the embodiment causes a computer system to execute the charge management method of the eleventh aspect.

The above-mentioned program can execute the vehicle schedule of the electric vehicle (EV1), and can secure the electric energy required for each application in the storage battery (B1).

1 Power management system 2 Charge management system 2a Information acquisition unit 2b Charge control unit 2c Billing unit 4 Charging device EV1 Electric vehicle B1 Storage battery F1 Workplace (1st facility)
F2 housing (second facility)
S1 Information acquisition step S14 Charge control step

Claims (12)

Vehicle schedule regarding the operation schedule of an electric vehicle equipped with a drive storage battery charged by at least the charging device of the first facility, in-house information regarding the amount of electricity consumed in the second facility in which the user using the electric vehicle resides, And the information acquisition unit that acquires vehicle history information related to the usage history of the electric vehicle, and
A charge management system including a charge control unit that controls charging of the storage battery by the charging device based on at least the vehicle schedule, the home information, and the vehicle history information. The charge control unit
Based on the in-house information, the amount of in-house electric power consumed in the second facility is obtained.
Based on the vehicle history information, the amount of vehicle power consumed by the electric vehicle is obtained.
The charge management system according to claim 1, which controls charging of the storage battery by the charging device based on the amount of electric power in the house and the amount of electric power of the vehicle. The vehicle electric energy is used for the electric vehicle to travel on a route including the first facility and a route not including the first facility. Including the second vehicle electric energy
The charge control unit
The charging speed when the charging device charges the storage battery with the first vehicle electric energy is compared with the charging speed when the charging device charges the second vehicle electric energy and the in-house electric energy with the storage battery. The charge management system according to claim 2. The charge control unit
The charge management system according to any one of claims 1 to 3, which controls the charging of the storage battery by the charging device based on the balance between the supply and demand of electric power in the area including the first facility. The information acquisition unit further acquires the charge amount instructed by the operation on the information terminal as operation information, and further acquires it.
The charge control unit is a charge management system according to any one of claims 1 to 4, which controls charging of the storage battery by the charging device based on the operation information. The charging management system according to any one of claims 1 to 5, further comprising a charging unit that charges for the charging electric energy, which is the electric energy charged by the charging device to the storage battery. The billing unit
If the charge power amount is equal to or less than the threshold value, the charge for the charge power amount is free of charge.
The charge management system according to claim 6, wherein if the charge power amount exceeds the threshold value, the consideration for the excess power amount obtained by subtracting the threshold value from the charge power amount is charged. The charging device further includes a charging unit that charges for the charged electric power, which is the amount of electric power charged to the storage battery.
The billing unit
The consideration for the amount of electric power of the first vehicle is free of charge.
The charge management system according to claim 3, wherein the consideration for the second vehicle electric energy and the in-house electric energy is charged. The user is an employee of the first facility and
The first facility is a workplace where the employee drives the electric vehicle and commute from the second facility.
The second facility is a charge management system according to any one of claims 1 to 8, which is a house in which the employee drives the electric vehicle and returns home from the first facility. The charge management system according to any one of claims 1 to 9 and
A power management system comprising the charging device. Vehicle schedule regarding the operation schedule of an electric vehicle equipped with a drive storage battery charged by at least the charging device of the first facility, in-house information regarding the amount of electricity consumed in the second facility in which the user using the electric vehicle resides, And the information acquisition step of acquiring the vehicle history information regarding the usage history of the electric vehicle, and
A charge management method including a charge control step for controlling charging of the storage battery by the charging device based on at least the vehicle schedule, the home information, and the vehicle history information. A program that causes a computer system to execute the charge management method according to claim 11.

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