JP5312440B2 - Server device and charging support method for electric vehicle - Google Patents

Description

  The present invention relates to a server device and a charging support method for an electric vehicle, and more particularly, to a technique for efficiently charging an electric vehicle using a transformer such as a pole transformer.

  Patent Document 1 describes the current position of the vehicle and map data so that the electric energy can be replenished reliably and the driver can be assisted before the electric vehicle runs out of electric energy. In the navigation system of an electric vehicle that provides the driver with matching and guides the route, the battery remaining capacity measuring means for measuring the remaining capacity of the in-vehicle battery, and when the measured remaining battery capacity falls below a certain level, Providing the driver with the position information of the electric energy supply station existing around the vehicle position of the vehicle, together with the identification information related to the reachability based on the travelable distance of the vehicle determined from the remaining battery capacity, The electric energy supply stand, wherein the electric energy stand information providing means exists in a set range of the traveling direction of the own vehicle. It like the position information to so provide the driver with the identification information is described.

Patent Document 2 discloses a facility that includes position information and information on the presence or absence of an energy supply facility for an electric vehicle in the navigation device in order to provide a navigation device that can provide information suitable for the electric vehicle to a user. Facility data storage means for storing data;
For facilities where the energy supply facility information providing means is not the main purpose of energy supply, providing energy supply facility information providing means for providing users with location information of facilities having energy supply facilities based on the facility data. For example, providing location information to a user together with information on presence / absence of energy supply facilities.

Japanese Patent Application No. 8-18905 JP 2001-215124 A

  Recently, expectations for electric vehicles are increasing against the background of environmental problems and resource problems. Here, it is indispensable to develop charging facilities such as charging stations and charging points for practical use of electric vehicles. However, a huge amount of investment is required, and it is necessary to reach an agreement with local residents for establishment. In many cases, the development of charging facilities is not necessarily progressing smoothly.

  By the way, transformers that can be used as a power supply source necessary for charging an electric vehicle are provided everywhere in an electric power system operated by an electric power company or the like. If such a transformer is used as a supply source of charging power, a function equivalent to that of a charging facility can be realized relatively easily throughout the region.

  However, when charging an electric vehicle using a transformer, it is necessary to move the electric vehicle to a place where the transformer exists, and it is also necessary to transport the charger to a place where the transformer exists. In addition, since a load is normally connected to the transformer, it is necessary to prevent the load from being affected during charging.

  The present invention has been made from such a point of view, and it is possible to efficiently charge an electric vehicle using a transformer such as a pole transformer, and to charge an electric vehicle. The purpose is to provide support methods.

  A main invention for achieving the above object includes an electric vehicle including a navigation device, a charger vehicle including the navigation device and carrying a charger for charging the electric vehicle, the electric vehicle, and the charger vehicle. And a server device communicably connected to the server, wherein the server device receives an arrangement request for the charger vehicle sent from the electric vehicle, and receives the arrangement request. In response, the transformer for supplying electric power for charging the electric vehicle is selected from among the transformers scattered in the area, and the charging is directed to a charging point where the selected transformer exists. Select a vehicle and charge point information, which is information about the charging point, to the electric vehicle that has transmitted the arrangement request and the selected charger vehicle. And that trust.

  According to the present invention, when the electric vehicle transmits an arrangement request for the charger vehicle to the server device, the server device automatically turns on the charger vehicle that directs the transformer for supplying electric power for charging the electric vehicle and the charging point. The charging point information is automatically provided to the selected electric vehicle and the selected charger vehicle. Therefore, the driver of the electric vehicle can determine an optimum charging point by simply sending a request for arranging a charger car, and a charger car for charging is automatically arranged. According to this, the electric vehicle can be charged efficiently.

  Another one of the present invention is the server device, wherein the one or more transformers and the one or more transformers are in a state compatible with charging of the electric vehicle that has transmitted the arrangement request. Acquire the charger car, identify the combination that takes the shortest time to complete charging from the acquired combination of the transformer and the charger car, and there is the transformer in the specified combination The place to do is assumed to be the charging point.

  According to the present invention, among the combination of the transformer and the charger car, the combination that minimizes the time required to complete the charging is specified, the place where the transformer in the specified combination exists is set as the charging point, The charging point that is the shortest time to complete charging is automatically set. According to this, charging of the electric vehicle can be completed at an early stage, and the electric vehicle can be quickly reached the destination.

  Another one of the present invention is the server device described above, wherein the time required to complete the charging is the time required for the electric vehicle to move to the charging point, and the charger car is the charging point. At least one of the time required to travel to the vehicle, the time required to start charging after the charger vehicle arrives at the charging point, and the time required to start after charging starts Based on the above.

  According to the present invention, the server device sets the time required for the completion of charging to the time required for the electric vehicle to move to the charging point, the time required for the charger car to move to the charging point, The time required to complete charging is determined in consideration of various times required for charging, such as the time required to start charging after arriving at the point and the time required to start after charging starts. Therefore, it is possible to accurately obtain the time required to complete charging. According to this, the charging of the electric vehicle can be completed reliably at an early stage, and the electric vehicle can be quickly reached the destination.

  Another one of the present invention is the server device, wherein the current position of the electric vehicle and the remaining battery level of the electric vehicle are received from the electric vehicle that has transmitted the arrangement request, and received. Based on the current position and the remaining battery level, a transformer that is within a reachable range of the electric vehicle is selected, and the selected transformer is in a state capable of supporting charging of the electric vehicle. Will be obtained as

  According to the present invention, the server device targets a transformer existing within a reachable range of the electric vehicle, and identifies a combination that requires the shortest time to complete charging. It is possible to prevent a certain transformer from being selected by mistake. According to this, the combination of the transformer and charger car which can actually charge can be specified reliably, and charge of an electric vehicle can be completed reliably at an early stage.

  Another one of the present invention is the server device, wherein the transformer has a free capacity necessary for charging the electric vehicle, and is communicably connected to a measuring device that acquires the free capacity of the transformer. A device is acquired as the transformer in a state that can handle charging of the electric vehicle.

  According to the present invention, since the server device specifies a combination that requires the shortest time to complete charging for a transformer that has free space necessary for charging, the server device has free space necessary for charging. It can be prevented that no transformer is selected by mistake. According to this, the combination of the transformer and charger car which can actually charge can be specified reliably, and charge of an electric vehicle can be completed reliably at an early stage. In addition, the electric vehicle can be charged using the power supplied from the transformer without affecting other loads that are supplied with power from the transformer.

  Another one of the present invention is the server device described above, wherein a destination of the electric vehicle is acquired from the electric vehicle that has transmitted the arrangement request, and the electric vehicle that has transmitted the arrangement request One or more of the transformers and one or more of the charger cars that are in a state capable of being charged are acquired, and the arrangement request is made out of a combination of the acquired transformers and the charger cars. The combination that minimizes the time required for the electric vehicle that has transmitted to arrive at the destination is identified, and the place where the transformer in the identified combination exists is defined as the charging point.

  According to the present invention, the combination of the transformer and the charger car that takes the shortest time to reach the destination is specified, and the place where the transformer in the specified combination exists is set as the charging point. The charging of the electric vehicle can be completed early, and the electric vehicle can be quickly reached the destination.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, it is possible to efficiently charge an electric vehicle using a transformer.

1 is a diagram illustrating a schematic configuration of a charging support system 1. FIG. It is a figure which shows a mode that the charging vehicle 3 is charging EV2 using the electric power supplied from the transformer. It is a structural example of the communication system utilized when the server apparatus 10 acquires the free capacity of the transformer 4. FIG. This is the main on-vehicle equipment that EV2 has. This is a hardware configuration of the navigation device 209 mounted on the EV2. This is the main function of the navigation device 209 mounted on the EV2. This is a record configuration of the map information database 228. It is a data format of the charger car arrangement request 800. The data format of the charging point information 900 is shown. This is a hardware configuration of the navigation device 310 mounted on the charger car 3. This is a main function provided in the navigation device 310 mounted on the charger car 3. It is a hardware configuration of the server device 10. This is a main function of the server device 10. It is a record configuration of the EV information database 122. It is a record structure of the charger car information database 123. It is a record structure of the transformer information database 124. It is a flowchart explaining charging point information generation processing S1700. 6 is an example of a screen displayed on the display device 216 by the navigation device 209. 6 is an example of a screen displayed on the display device 216 by the navigation device 310. It is a record structure of the charger vehicle arrangement request 800 which concerns on 2nd embodiment. It is a flowchart explaining charging point information generation process S2100.

= First embodiment =
FIG. 1 shows a schematic configuration of a system (hereinafter referred to as a charging support system 1) that supports charging of an electric vehicle (EV (Electric Vehicle)) (electric vehicle), which will be described as a first embodiment. . As shown in the figure, the charging support system 1 includes an electric vehicle (hereinafter referred to as EV2) and a charger vehicle that transports the charger 31 to a place where the electric vehicle is charged (hereinafter referred to as a charging point). 3. Information processing to support EV2 charging provided in transformers 4 (post transformers, underground transformers, etc.), power companies, etc. provided at various locations in the region as components of the power system, etc. The server apparatus 10 which performs is comprised.

  For example, when the remaining battery level becomes low during traveling (the remaining battery level becomes equal to or less than a predetermined threshold value), the EV 2 sets a request for arranging the charger vehicle 3 (hereinafter referred to as a charger vehicle arrangement request). 10 to send. When the server device 10 receives the charger vehicle arrangement request, the server device 10 determines the transformer vehicle 4 used for charging and the charger vehicle 3 that can be directed to the charging point (can be arranged), and information on the charging point (hereinafter referred to as the charging point). The charging point information is transmitted to the EV 2 that has transmitted the charger vehicle arrangement request (hereinafter referred to as the charging request EV 2) and the determined charger vehicle 3.

  FIG. 2 shows a state in which the charging vehicle 3 is charging the EV 2 using electric power supplied from the transformer 4. As shown in the figure, when the charger car 3 arrives at the charging point, the connection between the output terminal of the transformer 4 and the input terminal of the charger 31 or the connection between the output terminal of the charger 31 and the charging terminal of the EV 2 is performed. Thus, preparations necessary for starting charging are made, and when the preparation is completed, charging of EV2 is started.

  The server device 10 determines the transformer 4 to be used for charging the charging request EV2 based on the remaining battery level of the charging request EV2 and the free capacity (room capacity) of the transformers 4 scattered in the area.

  FIG. 3 is a configuration example of a communication system used when the server apparatus 10 acquires the free capacity of the transformer 4. As shown in the figure, the server device 10 is, for example, predetermined from a measuring device 41 provided in the transformer 4 or a smart meter 71 provided in the load 7 connected to the low-voltage distribution line 6. Information (specifications and status of the transformer 4) (hereinafter referred to as transformer information) of the transformer 4 through the communication means 8 (for example, the Internet, public communication, dedicated line, PLC, etc.) (hereinafter referred to as transformer information) as needed. , Regularly etc.).

  FIG. 4 shows the main in-vehicle equipment provided in EV2. As shown in the figure, EV2 includes a storage battery 201, a motor 202, an inverter 203, a quick charging connection port 204, a normal charging connection port 205, an in-vehicle charger 206, a BMU 207 (BMU: Battery Management Unit) (voltage detection means). ), An ECU 208 (ECU: Electronic Control Unit), a navigation device 209 (“navigation device” in the figure), and a voltage conversion circuit 210.

  The storage battery 201 is, for example, a lithium ion secondary battery, a lithium ion polymer battery, a metal-air battery, a nickel metal hydride battery, a lead storage battery, or the like.

  The motor 202 generates power for driving the EV 2 by energy supplied from the storage battery 201.

  The inverter 203 converts the DC voltage supplied from the storage battery 201 into an AC voltage necessary for driving the motor 202. The inverter 203 is configured using, for example, a single pulse inverter, a PWM (PWM: Pulse Width Modulation) inverter, or the like.

  A connector on the quick charger side is connected to the quick charging connection port 204 when the storage battery 201 is rapidly charged. A charging cable for electrically connecting an AC outlet (AC100V, AC200V, etc.) provided in a general home, office, charging point, etc. to the normal charging connection port 205 is connected to the normal charging connection port 205. The connector is connected.

  The on-vehicle charger 206 charges the storage battery 201 based on power supplied from a power supply source for normal charging such as an AC outlet. The in-vehicle charger 206 corresponds to a plurality of input voltages, automatically determines the voltage value supplied from the normal charging connection port 205, and controls the charging of the storage battery 201 according to the determined voltage value. Do. The charge control is performed according to a predetermined charging method such as CVCC (Constant Voltage Constant Current).

  The BMU 207 communicates with an in-vehicle charger 206, an ECU 208, and a quick charger (not shown) connected via the quick charging connection port 204 in accordance with a protocol such as CAN (Controller Area Network). The BMU 207 actively or passively monitors and controls the in-vehicle device mounted on the EV 2. For example, the BMU 207 monitors the state (terminal voltage, energization current, temperature, etc.) of the cells constituting the storage battery 201 in real time, discharges the storage battery 201, and charges the storage battery 201 with the in-vehicle charger 206 or the quick charger. Control, state diagnosis of the storage battery 201 based on monitoring of internal resistance, etc., control of voltage balance of each cell constituting the storage battery 201, and the like are performed.

  The ECU 208 controls a power mechanism provided in the EV 2 such as the motor 202, a transmission (not shown), a clutch (not shown), etc. based on information sent from the BMU 207, the motor 202, the inverter 203, the navigation device 209, and the like. .

  The navigation device 209 is, for example, a car navigation device, and is based on a positioning signal sent from a GPS satellite 9 (GPS: Global Positioning System) or information sent from a VICS (Vehicle Information and Communication System). The current position (latitude, longitude, altitude) of EV2 is specified, and information indicating the current position, map information around the current position, information indicating the route to the destination (guidance), etc. are displayed on the screen (video) and voice. Provide to users in real time.

  Voltage conversion circuit 210 includes a DC / DC converter that converts the voltage of storage battery 201 into the operating voltage of ECU 208 and navigation device 209. The voltage conversion circuit 210 is configured using, for example, a high voltage chopper circuit or a boost chopper circuit.

  FIG. 5 shows a hardware configuration of the navigation device 209 mounted on the EV 2. As shown in the figure, the navigation device 209 includes a central processing unit 211, a storage device 212, a timing device 213, a current position acquisition device 214, an input device 215, a display device 216, an audio device 217, an internal communication device 218, and an external device. A communication device 219 is provided.

  The central processing unit 211 is configured using a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like. The central processing unit 211 performs overall control in processing for realizing the hardware of the navigation device 209 and the function of the navigation device 209.

  The storage device 212 is a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk drive, or the like configured using a semiconductor storage device or the like, and stores programs and data.

  The timing device 213 is configured using an RTC (Real Time Clock) or the like, and provides timing information such as the current time.

  The current position acquisition device 214 outputs information (latitude, longitude, altitude) indicating the current position of the EV 2 based on a positioning signal sent from the GPS satellite 9 or information sent from the VICS.

  The input device 215 is an operation panel, a touch panel, or the like, and transmits an operation input signal received from a user to the central processing unit 211.

  The display device 216 is a liquid crystal monitor, an organic EL panel, or the like, and provides visual information to the user. The audio device 217 includes a low frequency amplifier and a speaker, and provides audio information to the user.

  The internal communication device 218 is provided in, for example, a control bus, a CAN interface, a LIN interface (LIN: Local Interconnect Network), a USB interface (USB: Universal Serial Bus), a LAN interface (wired / wireless), RS-232C, and EV2. Acquisition of information from various sensors, communication with the ECU 208, and the like.

  The external communication device 219 is an interface for connecting to a public communication network (wired / wireless), a LAN interface (wired / wireless), or the like, and is wirelessly or wiredly communicated with the server device 10 or the charger car 3. Communicate.

  FIG. 6 shows the main functions provided in the navigation device 209 mounted on the EV 2. As shown in the figure, the navigation device 209 includes functions of a navigation processing unit 221, a charger vehicle arrangement request transmission unit 222, and a charging point information reception unit 223. Note that these functions are realized by hardware provided in the navigation device 209 or by the central processing unit 211 of the navigation device 209 reading and executing a program stored in the storage device 212. As shown in the figure, the navigation device 209 manages (stores) a map information database 228.

  Among the functions provided in the navigation device 209, the navigation processing unit 221 obtains information (navigation information (guidance information)) indicating the current position of EV2 and the route (route) to the set destination from the map information database 228. It outputs to the display apparatus 216 and the audio | voice apparatus 217 with the map information acquired.

  FIG. 7 shows the record structure of the map information database 228. As shown in the figure, the record of the map information database 228 has items such as one or more position coordinates 2281, type 2282, geographic information 2283, update date and time 2284, and the like.

  Among these, the position coordinates 2281 are set with position coordinates (latitude, longitude, altitude) for specifying the topography specified by the record and the current position and shape of the facility.

  Types 2282 include general map information such as national highways, prefectural roads, city roads, expressways, exclusive highways, railroad tracks, rivers, etc., information on road structures such as the number of road lanes and the structure of intersections, and convenience stores. Information indicating the type of terrain and facility specified by the record, such as a store, a shopping center, a restaurant, a gas station, a charging point, a hospital, and transportation, is set.

  In the geographic information 2283, information on the topography and facilities specified by the record is set. In the update date 2284, the last update date of the record is set.

  The charger vehicle arrangement request transmission unit 222 shown in FIG. 6 is an operation instructing the input device 215 to transmit a charger vehicle arrangement request by the driver or the like when the remaining battery level of the storage battery 201 has become a predetermined threshold value or less. In response to the fact that the charging has been performed, a charger vehicle arrangement request is transmitted to the server device 10.

  FIG. 8 shows a data format of a charger vehicle arrangement request. As shown in the figure, the charger vehicle arrangement request 800 includes an EV2 identifier (hereinafter referred to as EVID 801), an EV2 current position 802 acquired from the current position acquisition device 214, and a battery of the EV2 storage battery 201. The remaining amount 803 is included.

  The charging point information receiving unit 223 shown in FIG. 6 receives information (hereinafter referred to as charging point information) related to charging points sent from the server device 10 as a response to the charger vehicle arrangement request. Further, the charging point information receiving unit 223 sets the position of the charging point acquired from the charging point information received from the server device 10 as a navigation destination.

  FIG. 9 shows the data format of the charging point information. As shown in the figure, in the charging point information 900, the position coordinates 901 of the charging point, the identifier of the transformer column 5 existing at the charging point (hereinafter referred to as transformer column ID 902), and the charging point exist. An identifier of the transformer 4 that is a power supply source for charging (hereinafter referred to as transformer ID 903) EV2 scheduled arrival time 904 at the charging point, charging vehicle 3 scheduled arrival time 905, The scheduled charging start time 906 and the time 907 at which charging is scheduled to be completed are included.

As with the EV 2, a navigation device 310 is also mounted on the charger car 3.
FIG. 10 shows a hardware configuration of the navigation device 310 mounted on the charger car 3. As shown in the figure, the navigation device 310 includes a central processing unit 311, a storage device 312, a timing device 313, a current position acquisition device 314, an input device 315, a display device 316, an audio device 317, an internal communication device 318, and an external device. A communication device 319 is provided. Note that the hardware configuration of the navigation device 310 mounted on the charger car 3 is the same as that of the navigation device 209 mounted on the EV 2.

  FIG. 11 shows the main functions of the navigation device 310 mounted on the charger car 3. As shown in the figure, the navigation device 310 includes functions of a navigation processing unit 321, a current position notification unit 322, and a charging point information reception unit 323. Note that these functions are realized by hardware included in the navigation device 310 or by the central processing unit 311 of the navigation device 310 reading and executing a program stored in the storage device 312.

  As shown in the figure, the navigation device 310 manages (stores) a map information database 328. The record structure of the map information database 328 is the same as the record structure of the map information database 228 managed by EV2.

  The navigation processing unit 321 displays information (navigation information (guidance information)) such as the current position of the charger car 3 and a route to the set destination (navigation information (guidance information)) together with the map information acquired from the map information database 328. The data is output to the device 316 and the audio device 317.

  The current position notification unit 322 notifies the server apparatus 10 of its current position acquired from the current position acquisition apparatus 314 in response to an inquiry sent from the server apparatus 10. Note that the current position notification unit 322 stores information indicating whether or not the charger car 3 can handle the charging request EV2, and if the charging vehicle 3 cannot handle the charging request EV2, the server device The server apparatus 10 is notified of information indicating that the current position is not notified to the terminal 10 or charging is not supported.

  The charging point information receiving unit 323 receives charging point information (similar to the charging point information transmitted to the charging request EV2) sent from the server device 10. In addition, the charging point information receiving unit 323 sets the position of the charging point ascertained from the charging point information received from the server device 10 as a navigation destination.

  FIG. 12 shows a hardware configuration of the server apparatus 10. As shown in the figure, the server device 10 includes a central processing unit 101, a storage device 102, a timing device 103, an input device 104, a display device 105, and a communication device 106.

  The central processing unit 101 is configured using a CPU or the like and performs overall control of the server device 10. The storage device 102 is a semiconductor storage device (RAM or ROM), a hard disk drive, or the like, and stores programs and data. The timing device 103 is configured using an RTC or the like, and provides timing information such as the current time.

  The input device 104 is a keyboard, a mouse, or the like, and transmits an operation input signal received from a user to the central processing unit 101. The display device 105 is a liquid crystal monitor or the like, and provides visual information to the user.

  The communication device 106 is an interface for connecting to a public communication network (wired / wireless), a LAN interface (wired / wireless), and the like, and is connected to the EV 2, the charger car 3, the measuring device 41, the smart meter 71, and the like. Communication is performed by wireless communication or wired communication.

  FIG. 13 shows main functions of the server device 10. As shown in the figure, the server device 10 includes a charger vehicle arrangement request reception unit 111, a charger vehicle current position reception unit 112, a transformer information acquisition unit 113, a charging point information generation unit 114, and a charging point information transmission unit. 115 functions are provided. Note that these functions are realized by hardware provided in the server device 10 or by the central processing unit 101 of the server device 10 reading and executing a program stored in the storage device 102.

  As shown in the figure, the server device 10 manages (stores) a map information database 121, an EV information database 122, a charger car information database 123, and a transformer information database 124.

  Among the functions described above, the charger vehicle arrangement request receiving unit 111 receives a charger vehicle arrangement request sent from the EV 2. The charger car current position receiving unit 112 makes an inquiry (for example, broadcast) of the current position to one or more charger cars 3 scattered in the area, and is sent from the charger car 3 in response to the inquiry. The current position of the charger car 3 is received.

  The transformer information acquisition unit 113 receives transformer information sent from the measuring instrument 41 or the smart meter 71 as needed.

  The charging point information generation unit 114 determines the transformer 4 and the charger car 3 used for charging the EV 2, and generates charging point information 900. Details of processing performed by the charging point information generation unit 114 will be described later.

  The charging point information transmitting unit 116 transmits the charging point information 900 generated by the charging point information generating unit 114 to the charging request EV2 and the determined charger car 3.

  The record structure of the map information database 121 is the same as the record structure of the map information database 228 described above.

  FIG. 14 shows the record structure of the EV information database 122. As shown in the figure, a record of the EV information database 122 includes an EV2 identifier (EVID 1221), a capacity 1222 (maximum chargeable capacity) of the storage battery 201 included in the EV2, and a fuel consumption 1223 (for example, unit power amount) of the EV2. (Travelable distance (km) per (kWh)) and average vehicle speed 1224 (km / h) of the EV2. The contents of the EV information database 122 are registered by, for example, an electric power company operator.

  FIG. 15 shows a record configuration of the charger car information database 123. As shown in the figure, a record of the charger car information database 123 includes an identifier (charger car ID) of the charger car 3, a current position 1232 of the charger car 3 notified from the charger car 3, and Each item of the average vehicle speed 1233 of the charger car 3 is included. The contents of the charger car information database 123 are registered by, for example, an operator of an electric power company.

  FIG. 16 shows the record structure of the transformer information database 124. As shown in the figure, the record of the transformer information database 124 includes an identifier of the transformer 4 (transformer ID 1241), an identifier 1242 of the transformer column 5 in which the transformer 4 is provided, and the transformer 4 The items of the position coordinate 1243 provided, the capacity 1244 (maximum capacity) of the transformer 4 (kW), and the current load 1245 (kW) of the transformer 4 are included. The contents of the transformer information database 124 are registered by, for example, an operator of an electric power company.

<Operation of server device>
FIG. 17 is a flowchart for explaining processing (hereinafter referred to as charging point information generation processing S1700) performed when server device 10 receives charger vehicle arrangement request 800 sent from EV2.

  The server device 10 monitors in real time whether or not the charger vehicle arrangement request 800 has been received (S1711). When detecting that the charger vehicle arrangement request 800 has been received (S1711: YES), the server device 10 selects one transformer 4 that can handle the charging of the charging request EV2 (S1712).

  Here, the server device 10, for example, charges the EV 2 to be charged within a reachable range using the remaining battery level 803 or the free capacity (= capacity 1244 -current load 1245) of the identified transformer 4 is charged. It is determined whether or not each transformer 4 can handle charging of the charging target EV2 based on a condition such as whether or not it is sufficient to perform (whether or not the free capacity is a predetermined threshold value or more).

  Next, the server device 10 inquires the current position of the charger car 3 in a communicable state, acquires the current position of the charger car 3, and associates the acquired current position with the charger car ID. And stored in the charger car information database 123 (S1713).

  As described above, the charger car 3 that has received the above inquiry transmits its current position to the server device 10 if it can handle EV2 charging. If the situation is not compatible, the current position is not responded to the server device 10. Note that cases where EV2 charging is not possible include cases where other EV2 charging is being supported, or cases where the vehicle cannot move due to a failure.

  Next, the server apparatus 10 selects one of the charger cars 3 whose current position has been acquired in S1713 (S1714), and starts each process of S1715, S1716, and S1719.

  In S1715, the server device 10 determines the current position 802 of the charging request EV2, the position coordinate 1243 (that is, the charging point) of the transformer 4 selected in S1712, and the average of the charging request EV2. Based on the vehicle speed 1224, the time required for the charging request EV2 to move to the charging point (hereinafter referred to as EV required time t1) is obtained. Thereafter, the process proceeds to S1718.

  In S1716, the server apparatus 10 determines the current position 1232 of the charger car selected in S1714 (hereinafter referred to as the selected charger car 3), the position coordinates 1243 of the candidate transformer 4 (that is, the position coordinates of the charging point), and Based on the average vehicle speed 1233 of the selected charger vehicle 3, a time required for the selected charger vehicle 3 to move to the charging point (hereinafter referred to as a charger vehicle required time t2) is obtained.

  In subsequent S1717, the server device 10 obtains a time (hereinafter, referred to as a preparation time t3) required until charging starts after the selected charger vehicle 3 arrives at the charging point (S1717). Thereafter, the process proceeds to S1718.

  The server device 10 stores, for example, the time required for the work to start charging (for example, rapid charging, normal charging (AC 100 V), normal charging (AC (200 V), etc.)) The preparation time t3 is obtained on the basis of the time required for drawing out the terminal from the transformer 4 and wiring required for the terminals of the charger 31 and EV2, etc. The preparation time t3 is preliminarily stored in the server device 10 as a fixed value. You may make it memorize.

  In S1718, the server device 10 determines the larger (time + t3) of the sum (t2 + t3) of the EV required time t1 obtained in S1715, the charger vehicle required time t2 obtained in S1717, and the preparation time t3 obtained in S1717. The longer value is stored as the time required to start charging (hereinafter referred to as charging start required time T1). Thereafter, the process proceeds to S1720.

  In S <b> 1719, the server device 10 sets the remaining battery level 803 of the charging request EV <b> 2, the capacity of the charging request EV <b> 2 (storage battery capacity 1222), and the charging capacity of the charger 31 (charging power amount per unit time (kWh / h)). Based on this, a time required for the storage battery 201 to be fully charged (hereinafter referred to as a required charging time T2) is obtained. Thereafter, the process proceeds to S1720.

  In S1720, the server device 10 associates the currently selected transformer 4 (candidate transformer 4) with the currently selected charger car 3 (selected charger car 3), and the charging start required time T1. And the required charging time T2 (hereinafter, this sum is referred to as a charging completion required time Ts).

  In S1721, the server apparatus 10 determines whether or not there is an unselected one in S1714 among the charger cars 3 that have acquired the current position in S1713. If there is an unselected item (S1721: YES), the process returns to S1714, and the same process (S1714 to S1720) as described above is repeated for the unselected charger car 3. On the other hand, if there is no unselected item (S1721: NO), the process proceeds to S1722.

  In S <b> 1722, the server device 10 determines whether or not there is an unselected one in S <b> 1712 among the transformers 4 that can support the charging of the charging request EV <b> 2. If there is an unselected transformer 4 (S1722: YES), the process returns to S1712, and the same processing (S1713 to S1721) as described above is repeated for the unselected transformer 4. If there is no unselected transformer 4 (S1722: NO), the process proceeds to S1723.

  In S <b> 1723, the server device 10 selects the smallest (the shortest time) of required charging completion time Ts stored in association with the candidate transformer 4 and the selected charger car 33 in S <b> 1720. Then, the server device 10 corresponds to the selected required charging completion time Ts and the candidate transformer 4 (hereinafter referred to as a specific transformer 4) and the selected charger car 3 (hereinafter referred to as a specific charger car 3). Charging point information 900 is generated for the combination.

  In S <b> 1724, the server device 10 transmits the generated charging point information 900 to the charging request EV <b> 2 and the specific charger car 3. Thereafter, the process returns to S1711.

<Operation of navigation device (charging request EV)>
Upon receiving the charging point information 900 from the server device 10, the navigation device 209 for the charging request EV 2 outputs information based on the received charging point information 900 to the display device 216 or the audio device 217. In addition, the navigation device 209 automatically sets the charging point position coordinates 901 set in the received charging point information 900 as a navigation destination, and starts navigation to the charging point.

  FIG. 18 is an example of a screen displayed on the display device 216 by the navigation device 209 during the navigation. As shown in the figure, on this screen, a graphic 181 indicating the position of the charging point, a graphic 182 indicating the current position of the charging request EV2, a graphic 183 for guiding a route from the current position of the charging request EV2 to the charging point, Various information 184 (transformer pole ID and transformer ID existing at the charging point, EV2 (own vehicle) and estimated arrival time of the charger car 3 at the destination, scheduled charging start time, scheduled charging completion time), etc. are displayed. Has been.

  The EV2 driver can quickly and surely arrive at the charging point by referring to this screen. Further, the EV2 driver can grasp the schedule until the completion of charging in advance by referring to this screen, and can adjust his own schedule in advance.

<Operation of navigation device (charger car)>
Upon receiving the charging point information 900 from the server device 10, the navigation device 310 of the charger car 3 outputs information based on the received charging point information 900 to the display device 316 or the audio device 317. The navigation device 310 automatically sets the charging point position coordinates 901 set in the received charging point information 900 as a navigation destination, and starts navigation to the charging point.

  FIG. 19 shows an example of a screen displayed on the display device 216 by the navigation device 310 during the navigation. As shown in the figure, on this screen, a graphic 191 indicating the position of the charging point, a graphic 192 indicating the current position of the charger car 3, and a route from the current position of the charger car 3 to the charging point are guided. Figure 193, various information 194 (transformer column ID and transformer ID existing at the charging point, EV2 and the scheduled arrival time of the charger car 3 (own vehicle), scheduled charging start time, scheduled charging completion time) ) Etc. are displayed.

  The driver of the charger car 3 can travel quickly and reliably to the charging point by referring to this screen. Further, the driver of the charger car 3 can grasp the schedule until the completion of charging in advance by referring to this screen.

  As described above, according to the charging support system 1 of the present embodiment, when the charging request EV2 transmits an arrangement request for the charger vehicle 3 to the server device 10, the server device 10 charges the charging request EV2. The charging point information is automatically selected for the charging request EV2 that has sent the arrangement request and the selected charging vehicle 3 automatically. Provided to. Therefore, the driver of the charging request EV2 can determine the optimum charging point simply by sending an arrangement request for the charger car 3. A charger car 3 for charging is also automatically arranged on the server device 10 side. According to this, charging of the charging request EV2 can be performed quickly and efficiently.

  Further, according to the charging support system 1 of the present embodiment, among the combinations of the transformer 4 and the charger car 3, the combination that takes the shortest time to complete the charging is automatically specified, and the transformation in the specified combination is performed. The place where the device 4 exists is set as a charging point, and the charging point that is the shortest time until charging is completed is automatically set. For this reason, the charging of the charging request EV2 can be completed at an early stage, and the charging request EV2 can be quickly reached at the destination.

  Further, the server device 10 determines the time required for completion of charging, the time required for the charging request EV2 to move to the charging point, the time required for the charger car 3 to move to the charging point, and the charging car 3 to the charging point. The time required to complete charging is calculated considering the various times required to complete charging, such as the time required to start charging after arriving at the terminal, and the time required to complete charging after starting charging. The time required to complete charging can be accurately obtained. According to this, charging of the charging request EV2 can be completed reliably at an early stage, and the charging request EV2 can be quickly reached at the destination.

  Further, since the server device 10 specifies the combination that minimizes the time required for completion of the charging for the transformer 4 that exists within the reachable range of the charging request EV2, the server device 10 is in a place where the charging request EV2 cannot be reached. It is possible to prevent the transformer 4 from being erroneously selected. According to this, the combination of the transformer 4 and the charger car 3 which can actually charge can be specified reliably, and charging of the charge request EV2 can be completed reliably at an early stage.

  Moreover, since the server apparatus 10 specifies the combination that requires the shortest time to complete the charging for the transformer 4 that has the free capacity necessary for charging, the transformer that does not have the free capacity necessary for charging. 4 can be prevented from being selected by mistake. According to this, the combination of the transformer 4 and the charger car 3 which can actually charge can be specified reliably, and, thereby, the charge of the charge request EV2 can be reliably completed early. In addition, the electric vehicle can be charged using the power supplied from the transformer without affecting other loads that are supplied with power from the transformer.

= Second embodiment =
In the above-described charging support system 1 of the first embodiment, when specifying the transformer 4 and the charger vehicle 3 used for charging the charging request EV2, the final destination of the charging request EV2 (the driver of the charging request EV2 is the navigation device). (Destination set to 209) is not considered. In the charging support system 1 of the second embodiment described below, the transformer 4 and the charger car 3 used for charging the charging request EV2 are specified in consideration of the final destination.

  In the charging support system 1 of the present embodiment, when the charger vehicle arrangement request 800 shown in FIG. 9 is transmitted to the server device 10, the charge request EV2 adds the position coordinates 804 of the final destination, and the record shown in FIG. The charger car arrangement request 800 having the configuration is transmitted to the server device 10.

  FIG. 21 is a flowchart illustrating a process (charge point information generation process S2100) performed when server apparatus 10 receives charger vehicle arrangement request 800 shown in FIG. Of the processes shown in the figure, S2111 to S2114 are the same as S1711 to S1714 in FIG. 17, S2115 is the same as S1715 in FIG. 17, and S2116 to S2118 are the same as S1716 to S1718 in FIG. It is.

  In S2119, the server device 10 obtains the distance from the candidate transformer 4 to the final destination based on the position coordinates 1243 of the candidate transformer 4 (position coordinates of the charging point) and the position coordinates 804 of the final destination. After that, each process of S2120 and S2122 is started.

  In S2120, server device 10 obtains the amount of power (kWh) required to reach the final destination from the charging point based on the fuel consumption 1223 of charge request EV2 and the distance obtained in S2119.

  In subsequent S2121, the server apparatus 10 determines in S2120 based on the amount of power (kWh) obtained in S2120 and the charging capacity of the charger 31 stored in advance (the amount of charged power per unit time (kWh / h)). The time required for charging the obtained electric energy (kWh) (hereinafter referred to as “required charge time T2”) is obtained, and the obtained time is defined as the required charge time T2. Thereafter, the process proceeds to S2123.

  On the other hand, in S2122, the server apparatus 10 determines the time required for the charging request EV2 to move from the charging point to the final destination based on the distance obtained in S2119 and the average vehicle speed 1224 of the charging request EV2 (hereinafter referred to as destination arrival). (Referred to as required time T3). Thereafter, the process proceeds to S2123.

  In S2123, the server device 10 correlates with the currently selected transformer 4 (candidate transformer 4) and the currently selected charger car 3 (selected charger car 3), and the charging start required time T1. , The sum of the required charging time T2 and the required destination arrival time T3 (hereinafter referred to as the charging completion required time Ts) is stored.

  In S <b> 2124, the server device 10 determines whether or not there is an unselected one in S <b> 2114 among the charger cars 3 that have acquired the current position in S <b> 2113. If there is an unselected item (S2124: YES), the process returns to S2114, and the same process (S2114 to S2123) as described above is repeated for the unselected charger car 3. On the other hand, if there is no unselected item (S2124: NO), the process proceeds to S2125.

  In S2125, the server apparatus 10 determines whether or not there is an unselected transformer in S2112 among the transformers 4 that can support charging of the charging request EV2. If there is an unselected transformer 4 (S2125: YES), the process returns to S2112 and the same processing (S2113 to S2124) as described above is repeated for the unselected transformer 4. If there is no unselected transformer 4 (S2125: NO), the process proceeds to S2126.

  In S2126, the server apparatus 10 selects the minimum (shortest) one of the charging completion required times Ts stored in association with the candidate transformer 4 and the selected charger car 33 in S2123. Then, the server device 10 corresponds to the selected required charging completion time Ts and the candidate transformer 4 (hereinafter referred to as a specific transformer 4) and the selected charger car 3 (hereinafter referred to as a specific charger car 3). And charging point information 900 is generated.

  In S <b> 2127, the server device 10 transmits the generated charging point information 900 to the charging request EV <b> 2 and the specific charger car 3. Thereafter, the process returns to S2111.

  As described above, in the charging support system 1 of the second embodiment, the combination of the transformer 4 and the charger car 3 that requires the shortest time to reach the destination is specified, and the transformer 4 in the specified combination is specified. Set the location where is present as a charging point. Therefore, charging of the charging request EV2 can be completed early and the charging request EV2 can be quickly reached at the destination.

  By the way, the embodiment described above is for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  For example, in the above description, the server device 10 is provided in an electric power company or the like, but the server device 10 may be provided in the EV 2 or the charger car 3. Moreover, although EV2 was demonstrated as an example of an electric vehicle above, the mechanism similar to the above is realizable also about other various electric vehicles which require charge, such as an electric motorcycle and an electric bicycle.

DESCRIPTION OF SYMBOLS 1 Charging assistance system 111 Charger vehicle arrangement request reception part 112 Charger vehicle present position reception part 113 Transformer information acquisition part 114 Charging point information generation part 115 Charging point information transmission part 2 EV
DESCRIPTION OF SYMBOLS 3 Charger vehicle 31 Charger 4 Transformer 41 Measuring device 6 Low voltage distribution line 7 Load 71 Smart meter 8 Communication means 800 Charger vehicle arrangement request 900 Charging point information S1700 Charging point information generation processing

Claims (8)

An electric vehicle equipped with a navigation device;
A charger car comprising a navigation device and carrying a charger for charging the electric vehicle;
A server device in a charging support system configured to include a server device communicably connected to the electric vehicle and the charger vehicle,
Receiving an arrangement request for the charger car sent from the electric vehicle;
In response to the arrangement request, the transformer for supplying electric power for charging the electric vehicle is selected from among the transformers scattered in the area,
Select the charger car to be directed to the charging point where the selected transformer is located,
The server apparatus characterized by transmitting charging point information, which is information on the charging point, to the electric vehicle that has transmitted the arrangement request and the selected charger vehicle. The server device according to claim 1,
Obtaining one or more of the transformers and one or more of the charger vehicles in a state capable of charging the electric vehicle that has transmitted the arrangement request;
Among the obtained combinations of the transformer and the charger car, identify the combination that takes the shortest time to complete charging,
The server device, wherein the charging point is a place where the transformer in the identified combination is present. The server device according to claim 2,
The time required to complete the charging is
The time required for the electric vehicle to move to the charging point, the time required for the charger car to move to the charging point, and from the time when the charger car arrives at the charging point until charging starts. A server device characterized in that it is calculated based on at least one of a time required and a time required from the start to the end of charging. The server device according to claim 2, wherein:
From the electric vehicle that has transmitted the arrangement request, the current position of the electric vehicle and the remaining battery level of the electric vehicle are received,
Based on the received current position and the remaining battery level, a transformer that is within a reachable range of the electric vehicle is selected, and the selected transformer is in a state in which charging of the electric vehicle can be performed. A server device obtained as a container. The server device according to claim 2, wherein:
Connect to a measuring device that acquires the free capacity of the transformer so that it can communicate,
The server device, wherein the transformer having a free capacity necessary for charging the electric vehicle is acquired as the transformer in a state where the electric vehicle can be charged. The server device according to claim 2, wherein:
The charging support system, wherein the charger vehicle in a state in which it can communicate with itself is acquired as the charger vehicle in a state in which the electric vehicle can be charged. The server device according to claim 1,
Obtaining the destination of the electric vehicle from the electric vehicle that has transmitted the arrangement request;
Obtaining one or more of the transformers and one or more of the charger vehicles in a state capable of charging the electric vehicle that has transmitted the arrangement request;
Among the obtained combinations of the transformer and the charger car, the electric vehicle that has transmitted the arrangement request identifies the combination that takes the shortest time to arrive at the destination,
The server device, wherein the charging point is a place where the transformer in the identified combination is present. An electric vehicle equipped with a navigation device;
A charger car comprising a navigation device and carrying a charger for charging the electric vehicle;
A charging support method in a charging support system comprising: a server device communicably connected to the electric vehicle and the charger vehicle;
The server device is
Receiving an arrangement request for a charger car sent from the electric vehicle;
In response to the arrangement request, a step of selecting the transformer for supplying electric power for charging the electric vehicle from among transformers scattered in a region;
Selecting the charger vehicle to be directed to a charging point where the selected transformer is present, and charging point information that is information about the charging point, the electric vehicle that has transmitted the arrangement request, and A charging support method comprising: transmitting to the selected charger car.

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