JP7056519B2 - Power supply system - Google Patents

Description

The present disclosure relates to the control of a power supply system using a power storage device mounted on a plurality of hybrid vehicles.

In recent years, with regard to electric vehicles equipped with relatively large-capacity power storage devices such as hybrid vehicles and electric vehicles, as seen in smart grids, multiple electric vehicles are considered as power supply sources, and general external vehicles are used as power supply sources. The concept of supplying power to electric equipment from an electric vehicle is being considered. Further, when the electric vehicle is a hybrid vehicle, it is possible to supply not only the electric power of the power storage device but also the electric power generated by the engine to the outside of the electric vehicle.

Regarding the configuration in which a plurality of electric vehicles are used as power supply sources, for example, Japanese Patent Application Laid-Open No. 2015-82273 (Patent Document 1) refers to a plurality of EMSs (Energy Management Systems) deployed in various buildings such as houses. A power management system that manages power according to an external supply and demand command is disclosed. In this power management system, for example, based on information such as the remaining amount of power of the power storage device mounted on the electric vehicle and the schedule of use of the electric vehicle, the power supply and demand capacity of each EMS is not exceeded, and each An electric power trading plan for buying and selling electric power of the power storage device is formulated within a range where there is no problem in using the electric vehicle of EMS, and electric power management is performed according to the formulated electric power trading plan.

JP-A-2015-082233

However, in the above-mentioned publication, power management is performed within the remaining amount of electric power of the power storage device, and when power is supplied using the power of the power storage device of a plurality of electric vehicles, the power storage device of the plurality of electric vehicles is used. If there is a power demand that exceeds the power that can be supplied, it may not be possible to perform appropriate power management for the power demand.

The present disclosure has been made to solve the above-mentioned problems, and an object thereof is a power supply system that appropriately responds to a power demand exceeding the power supply capacity of an in-vehicle power storage device when power is supplied using a plurality of hybrid vehicles. Is to provide.

The power supply system according to a certain aspect of the present disclosure is connected to a plurality of electric vehicles equipped with a power storage device and an engine used for power generation, receives power from at least a part of the power supply sources of the plurality of electric vehicles, and supplies power to the power supply destination. A storage device that stores power supply information including information on the power supply capacity of the power storage device in each of the plurality of electric vehicles and information on the power supply capacity by power generation using the engine, and when power is supplied to the power supply destination. , The power required by the power supply destination exceeds the power supply capacity of the power storage device, and the amount of power that can be supplied by the power storage device and the engine exceeds the amount of power that can be reached to the destination on the return route of the electric vehicle. The electric vehicle of the power supply source includes a control device for supplying power to the power supply device using an engine.

For example, when the remaining amount of power of the power storage device is low, or when the remaining amount of power of the power storage device is reduced due to the power supply until immediately before, the power required by the power supply destination exceeds the power supply capacity of the power storage device. In some cases. In such an electric vehicle, electric power is supplied to the power supply device by using the engine on condition that the amount of electric power that can reach the destination on the return route of the electric vehicle is secured, so that the power supply capacity of the power storage device It is possible to appropriately respond to the power demand exceeding the above.

According to the present disclosure, it is possible to provide a power supply system that appropriately responds to a power demand that exceeds the power supply capacity of an in-vehicle power storage device when power is supplied using a plurality of hybrid vehicles.

It is a figure for demonstrating the configuration of the power supply system which concerns on this embodiment. It is a figure which shows the composition of the vehicle schematicly. It is a flowchart which shows an example of the process executed by the management server. It is a figure for demonstrating an example of the structure of a power supply management list.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals and the description thereof will not be repeated.

FIG. 1 is a diagram for explaining a configuration of a power supply system according to the present embodiment. In the present embodiment, the power supply system 200 includes a management server 10 and a power supply device 53. Each of the plurality of vehicles is connected to the power feeding device 53. Each of the plurality of vehicles is a hybrid vehicle equipped with a power storage device capable of supplying electric power to a drive motor and an engine for generating electric power capable of charging the power storage device and supplying power to the outside of the vehicle. Note that FIG. 1 shows only four vehicles 1 to 4 for convenience of explanation, but the number of vehicles is not particularly limited to four.

The power supply system 200 supplies power to the power supply destination with the power of the power storage device mounted on at least a part of the plurality of vehicles 1 to 4 connected to the power supply device 53 and the power generated by the engine. It is composed of. The power supply destination includes, for example, an electric device (lighting device, sound device, display device, etc.) 58 provided in an event facility (for example, a live venue, etc.) 5 installed in a place having no power source such as a commercial power source. The management server 10 performs the setting of the vehicle that is the power supply source and the power supply control. The plurality of vehicles 1 to 4 are parked in a predetermined parking space around the event facility 5, and are connected to the power supply device 53 by using a power supply cable or the like described later.

The management server 10 is configured to be able to communicate with a plurality of vehicles including vehicles 1 to 4 via a base station 7 provided on the communication network 6. Further, the management server 10 is configured to be able to communicate with the event facility 5 via the communication network 6 and the base station 7. The management server 10 may be configured to be capable of communicating with mobile terminals 8 (for example, smartphones) of users of a plurality of vehicles.

The management server 10 acquires and acquires information for identifying a vehicle approved by the user for being a power supply source (hereinafter referred to as a vehicle ID) before the event is held at the event facility 5. The vehicle ID is stored. The vehicle ID is unique information set for each vehicle. The vehicle ID is transmitted from the mobile terminals 8 of the users of the vehicles 1 to 4 to the management server 10 via the communication network 6, for example. The vehicle ID may be transmitted using, for example, an application such as an e-mail included in the mobile terminal 8, or may be transmitted by inputting predetermined information in a registration form on the Web. The management server 10 registers the transmitted vehicle ID in the power supply management list.

Further, the management server 10 may be described as a vehicle that is a power supply source (hereinafter, referred to as a supply vehicle) while the event is being held at the event facility 5 (that is, the electric device 58 provided in the event facility 5 is in operation). Yes) is set. Then, the management server 10 controls the power supply device 53 so that electric power is supplied from the set supply vehicle to the electric device 58 provided in the event facility 5.

The management server 10 includes a control device 11, a storage device 12, and a communication device 13. The control device 11, the storage device 12, and the communication device 13 are communicably connected to each other by the communication bus 14.

The storage device 12 stores the power supply management list including the above-mentioned vehicle ID and information on the power supply capacity associated with the vehicle ID. Details of the information included in the power supply management list will be described later. The communication device 13 realizes bidirectional communication between the control device 11 and the communication network 6.

Although not shown, the control device 11 includes a CPU (Central Processing Unit), a memory (ROM (Read Only Memory), RAM (Random Access Memory), etc.), an input / output port for inputting / outputting various signals, and the like. Is configured to include. The various controls executed by the control device 11 are executed by software processing, that is, by reading the program stored in the memory by the CPU. Various controls by the control device 11 can also be realized by executing a program stored in the storage medium by a general-purpose server (not shown). However, various controls by the control device 11 are not limited to software processing, and may be processed by dedicated hardware (electronic circuit).

For example, during power supply using the power supply device 53, the control device 11 requests the vehicles 1 to 4 specified according to the registered vehicle ID to transmit power supply information every time a predetermined time elapses. When the control device 11 receives the power supply information, the control device 11 updates the power supply management list using the received power supply information.

Since the vehicles 1 to 4 basically have a common configuration, the configuration of the vehicle 1 will be typically described below.

FIG. 2 is a diagram schematically showing the configuration of the vehicle 1. With reference to FIG. 2, the vehicle 1 includes a power storage device 20, a system main relay (SMR) 21, a power control unit (PCU) 22, and a first motor generator (hereinafter referred to as a first motor generator). 61 (referred to as 1MG), a second motor generator (hereinafter referred to as a second MG) 62, an engine 63, a power dividing device 64, a power transmission gear 65, a drive wheel 66, and an ECU (Electronic Control Unit). ) 100 and included.

The power storage device 20 is a rechargeable DC power source, and includes, for example, a secondary battery such as a lithium ion battery or a nickel hydrogen battery. A capacitor such as an electric double layer capacitor can also be adopted as the power storage device 20. The power storage device 20 supplies electric power to the PCU 22 for generating the traveling driving force of the vehicle 1. Further, the power storage device 20 is charged by the electric power generated by the power generation operation using the first MG 61 and the engine 63, is charged by the electric power generated by the regenerative braking of the second MG 62, or drives the first MG 61 or the second MG 62. It is discharged by operation, charged by electric power supplied from the outside of the vehicle, or discharged by the supply of electric power to the outside of the vehicle.

The SMR 21 is electrically connected between the power storage device 20 and the PCU 22. The closing / opening of the SMR 21 is controlled according to a command from the ECU 100.

The PCU 22 performs power conversion between the power storage device 20 and the first MG 61, or performs power conversion between the power storage device 20 and the second MG 62, according to a command from the ECU 100. The PCU 22 includes an inverter that receives electric power from the power storage device 20 to drive the first MG61 or the second MG62, a converter that adjusts the level of the DC voltage supplied to the inverter (neither is shown), and the like. ..

Each of the first MG61 and the second MG62 is a three-phase AC rotary electric machine, for example, a permanent magnet type synchronous motor including a rotor in which a permanent magnet is embedded. Both the first MG61 and the second MG62 have a function as an electric motor (motor) and a function as a generator (generator). The first MG 61 and the second MG 62 are connected to the power storage device 20 via the PCU 22.

For example, when the engine 63 is started, the first MG 61 is driven by an inverter included in the PCU 22 to rotate the output shaft of the engine 63. Further, at the time of power generation, the first MG 61 receives the power of the engine 63 to generate power. The electric power generated by the first MG 61 is stored in the power storage device 20 via the PCU 22.

The second MG 62 is driven by an inverter included in the PCU 22, for example, when the vehicle 1 is traveling. The power of the second MG 62 is transmitted to the drive wheels 66 via the power transmission gear 65. Further, in the second MG 62, for example, when the vehicle 1 is braked, the second MG 62 is driven by the drive wheels 66, and the second MG 62 operates as a generator to perform regenerative braking. The electric power generated by the second MG 62 is stored in the power storage device 20 via the PCU 22.

The engine 63 is a known internal combustion engine that burns fuel (gasoline or light oil) such as a gasoline engine or a diesel engine to output power, and operates such as throttle opening (intake amount), fuel supply amount, and ignition timing. The state is configured to be electrically controlled by the ECU 100. The ECU 100 controls the fuel injection amount, ignition timing, intake air amount, etc. of the engine 63 so that the engine 63 operates at a target rotation speed and a target torque set based on the state of the vehicle 1. The power of the engine 63 is divided into a path transmitted to the drive wheels 66 and a path transmitted to the first MG 61 by the power splitting device 64. The power splitting device 64 is configured by, for example, a planetary gear mechanism.

The vehicle 1 further includes a charge / discharge relay 26, a power conversion device 27, and an inlet 28 as a configuration for performing external charging or external power supply. At the time of external charging of the power storage device 20, a charging connector (none of which is shown) connected to the charging cable is connected to the inlet 28. On the other hand, at the time of external power supply of the power storage device 20, the power supply connector 32 of the power supply cable 31 is connected to the inlet 28 as shown in FIG. Then, the electric power supplied from the power storage device 20 is supplied to the power supply destination via the power supply cable 31.

The charge / discharge relay 26 is electrically connected between the power storage device 20 and the power conversion device 27. When the charge / discharge relay 26 is closed and the SMR 21 is closed, power can be transmitted between the inlet 28 and the power storage device 20.

The power conversion device 27 is electrically connected between the charge / discharge relay 26 and the inlet 28. The power conversion device 27 converts the power supplied from the charger or the like into power that can be charged by the power storage device 20 according to a command from the ECU 100, or power that can supply power from the power storage device 20 (for example). , AC100V AC power).

The vehicle 1 further includes a navigation device 40 and a wireless communication device 50. The navigation device 40 is configured to acquire the position information of the vehicle 1 (current location of the vehicle 1, travel history, etc.). The navigation device 40 includes, for example, a GPS (Global Positioning System) receiver 41 that identifies the current location of the vehicle 1 based on radio waves from an artificial satellite. The navigation device 40 executes various navigation processes of the vehicle 1 specified by the GPS receiver 41.

More specifically, the navigation device 40 has a travel route (planned travel route) from the current location of the vehicle 1 to the destination based on the GPS information of the vehicle 1 and the road map data stored in the memory (not shown). Alternatively, a target route) is set, and information on the traveling route is transmitted to the ECU 100. Further, the navigation device 40 transmits, for example, information about the current location and the traveling history of the vehicle 1 specified by using the GPS receiver 41 to the ECU 100. The ECU 100 stores the information acquired from the navigation device 40 in the memory 102.

The navigation device 40 further includes, for example, a display 42 with a touch panel. The display 42 with a touch panel superimposes the current location and the traveling route of the vehicle 1 on the road map, and displays the information transmitted from the control device 11 to the vehicle 1 or the information from the ECU 100. Further, the display 42 with a touch panel accepts various operations by the user.

The wireless communication device is configured to communicate various information and the like with the outside of the vehicle. The wireless communication device 50 includes a long-distance communication module 51 and a short-range communication module 52. The long-distance communication module 51 includes, for example, an LTE (Long Term Evolution) communication module. The telecommunications module 51 is configured to enable bidirectional data communication with the base station 7 in the communication network 6. The short-range communication module 52 is configured to enable bidirectional data communication with a user's mobile terminal 8 at a short distance (for example, about several meters to several tens of meters) from the vehicle 1.

The ECU 100 includes a CPU 101, a memory 102, an input / output port (not shown) for inputting / outputting various signals, and the like. The ECU 100 controls each device (SMR21, PCU22, charge / discharge relay 26, power conversion device 27, engine 63, etc.) in the vehicle 1 so that the vehicle 1 is in a desired state.

Further, the ECU 100 transmits various information (position information of the vehicle 1 and the like) to the management server 10 and receives information from the management server 10 via the wireless communication device 50 (distance communication module 51). .. It is also possible for the mobile terminal 8 to communicate with the management server 10 via the wireless communication device 50 (long-distance communication module 51 and short-range communication module 52).

The event facility 5 is provided with a power feeding device 53, a communication device 54, a control device 56, and an electric device 58.

The power feeding device 53 includes input units 53a, 53b, 53c, 53d for receiving power from a plurality of vehicles 1 to 4, and an output unit 53e for supplying power to the electric device 58. The operation of the power feeding device 53 is directly controlled by the control device 56. The control device 56 is communicably connected to the communication device 54. The communication device 54 is connected to the above-mentioned communication network 6 and receives a control signal for controlling the power supply device 53 from the management server 10. The control device 56 controls the power supply device 53 according to the control signal received from the management server 10. A predetermined electric power (for example, AC100V electric power) is output from the output unit 53e of the power feeding device 53. As described above, the electric device 58 includes, for example, various electric devices provided in the event facility 5.

For example, when AC power is received from at least a part of a plurality of vehicles 1 to 4, the power supply device 53 adjusts the voltage, frequency, or phase so that AC100V is output, or a plurality of power supply devices 53. When DC power is received from at least a part of the vehicles 1 to 4, a power conversion device (not shown) that converts the DC power into AC power so that AC100V is output is included.

In the power supply system 200 having the above configuration, if power is supplied within the range of the remaining amount of electric power of the power storage device 20 mounted on each of the plurality of vehicles 1 to 4, the plurality of vehicles 1 to 4 will be supplied with electric power. If there is a power demand that exceeds the remaining amount of power of at least one of the power storage devices 20, it may not be possible to perform appropriate power management for the power demand.

Therefore, in the present embodiment, when the management server 10 supplies power to the power supply destination, the power required by the power supply destination exceeds the power supply capacity of the power storage device 20, and the power storage device 20 and the engine 63 make it possible. In the vehicle of the power supply source in which the amount of electric power that can be supplied exceeds the amount of electric power that can be reached to the destination on the return route from the event facility 5, the engine 63 is used to supply electric power to the power supply device 53.

For example, when the remaining amount of power of the power storage device 20 is low, or when the remaining amount of power of the power storage device 20 is reduced due to the power supply until immediately before, the power supply required by the power supply destination exceeds the power supply capacity of the power storage device 20. It may be electric power. In such a case, the power is supplied to the power supply device 53 by using the engine 63 on condition that the amount of power that can reach the destination on the return route is secured, so that the power supply capacity of the power storage device 20 is increased. It is possible to respond appropriately to the power demand that exceeds it.

Hereinafter, the process executed by the management server 10 will be described with reference to FIG. FIG. 3 is a flowchart showing an example of processing executed by the management server 10. The processing shown in this flowchart is repeatedly executed by the control device 11 of the management server 10 shown in FIG. 1 at a predetermined processing cycle.

At step 100 (hereinafter, step is referred to as S) 100, the management server 10 determines whether or not to start power supply. When, for example, the management server 10 performs an operation for starting the power supply, or receives a power supply start request from the event facility 5, the management server 10 starts the power supply. judge. If it is determined to start power supply (YES in S100), the process is transferred to S102.

In S102, the management server 10 acquires information on all vehicles. Specifically, the management server 10 requests transmission of power supply information to a plurality of vehicles 1 to 4 specified by vehicle IDs registered in the power supply management list. The plurality of vehicles 1 to 4 transmit the vehicle ID and the power supply information to the management server 10 in response to the request for transmission of the power supply information from the management server 10. When the management server 10 receives the vehicle ID and the power supply information, the management server 10 updates the power supply management list using the received vehicle ID and the power supply information.

FIG. 4 is a diagram for explaining an example of the configuration of the power supply management list. As shown in FIG. 4, the power supply management list includes the registration number, the vehicle ID, the current SOC, the amount of power that can be generated, the amount of power required for the return trip, the exclusion flag, the engine power generation flag, and the privilege target flag. Includes information about.

The "registration number" indicates the order of registration in the power supply management list. When the management server 10 receives a registration request from a user using a vehicle owned by the user as a power supply source before the event held at the event facility 5, the management server 10 displays information about the vehicle ID in the power supply management list in the order in which the registration request is received. To register. In the present embodiment, the management server 10 sets the supply vehicles in the order of registration.

The “vehicle ID” indicates, for example, the vehicle ID of each of the plurality of vehicles 1 to 4. The vehicle ID is used, for example, when receiving power supply information, to identify a vehicle corresponding to the received power supply information.

“Current SOC” indicates the current SOC of the power storage device 20 mounted on each of the plurality of vehicles 1 to 4. The power supply information received from the plurality of vehicles 1 to 4 includes information regarding the power supply capacity of the power storage device 20. In the present embodiment, the information regarding the power supply capacity of the power storage device 20 includes the current SOC of the power storage device 20.

In each of the plurality of vehicles 1 to 4, the current SOC is calculated from the usage history (temperature, voltage, current, etc.) of the power storage device 20, and the calculated current SOC is transmitted to the management server 10. The information regarding the power supply of the power storage device 20 may include, for example, information about the usage history of the power storage device 20. That is, information about the usage history of the power storage device 20 may be transmitted from each of the plurality of vehicles 1 to 4 to the management server 10. The management server 10 may calculate the current SOC of each of the plurality of vehicles 1 to 4 by using the information about the received usage history of the power storage device 20.

As the current SOC calculation method, various known methods such as a method by current value integration (coulomb count) or a method by estimation of open circuit voltage (OCV: Open Circuit Voltage) can be adopted.

The "power generation amount" indicates the power amount that can be generated by the power generation operation using the engines 63 of the plurality of vehicles 1 to 4 and the first MG61. The power supply information received from the plurality of vehicles 1 to 4 further includes information on the power supply capacity by power generation using the engine 63. In the present embodiment, the information regarding the power supply capacity by power generation using the engine 63 includes the amount of power that can be generated.

In each of the plurality of vehicles 1 to 4, the amount of power that can be generated is calculated from the remaining amount of fuel, and the calculated amount of power that can be generated is transmitted to the management server 10. As a method for calculating the amount of power that can be generated, for example, the correlation between the amount of power consumption of fuel and the amount of power generated per predetermined time during power generation operation is estimated using a map set by calculating in advance by experiments or the like. Alternatively, it may be estimated using a map set by calculating the correlation during the most recent operation.

The information regarding the power supply capacity by power generation using the engine 63 may include, for example, information about the remaining amount of fuel. That is, information about the remaining amount of fuel may be transmitted from each of the plurality of vehicles 1 to 4 to the management server 10. The management server 10 may calculate the amount of power that can be generated for each of the plurality of vehicles 1 to 4 by using the information about the remaining amount of fuel received. The remaining amount of fuel can be calculated by using the detection result by the fuel level sensor (not shown) provided in each of the plurality of vehicles 1 to 4.

The "required electric energy for the return trip" indicates the electric energy required for moving from the current location (event facility 5) to the destination (home) on the return trip. The power supply information received from the plurality of vehicles 1 to 4 further includes the amount of power required for the return trip.

For each of the plurality of vehicles 1 to 4, the distance to the destination on the return route from the current location is calculated, and the value obtained by adding a predetermined margin to the electric energy calculated from the calculated distance and the latest average electricity cost. May be calculated as the amount of power required for the return trip. The information about the home may be acquired from the information set as the home in the memory of the navigation device 40, or the information input by the user when registering the vehicle includes the information of the user's address. If so, it may be obtained from the information.

In FIG. 4, the current SOC of the vehicle 1 having the registration number “001” and the vehicle ID specified by “AAA” is SOC (1), the amount of power that can be generated is Pg (1), and the return route. It is shown that the required electric energy is Pr (1).

Similarly, in FIG. 4, the current SOC of the vehicle 2 having the registration number “002” and the vehicle ID specified by “BBB” is SOC (2), and the amount of power that can be generated is Pg (2). , It is shown that the amount of power required for the return trip is Pr (2).

Similarly, in FIG. 4, the current SOC of the vehicle 3 having the registration number “003” and the vehicle ID specified by “CCC” is SOC (3), and the amount of power that can be generated is Pg (3). , It is shown that the amount of power required for the return trip is Pr (3).

Similarly, in FIG. 4, the current SOC of the vehicle 4 having the registration number “004” and the vehicle ID specified by “DDD” is SOC (4), and the amount of power that can be generated is Pg (4). , It is shown that the amount of power required for the return trip is Pr (4).

The exclusion flag is a flag indicating whether or not the supply vehicle is excluded when the supply vehicle is set. The engine power generation flag is a flag indicating whether or not the vehicle is a vehicle that generates electric power generated by using the engine 63 when supplying electric power to the power feeding device 53. The privilege target flag is a flag indicating whether or not the vehicle is a target for receiving the privilege. It is assumed that the initial state of each flag is the off state.

Returning to FIG. 3, in S104, the management server 10 updates the power supply management list. Specifically, the current SOC acquired as power supply information among the plurality of items in FIG. 4, the amount of power that can be generated, and the item that has a change in the amount of power required for the return route are updated to the latest values.

In S106, the management server 10 sets a supply vehicle as a power supply source. The management server 10 sets, for example, at least a part of the plurality of vehicles 1 to 4 as supply vehicles. In the present embodiment, the management server 10 is set to a predetermined number (for example, three) as a supply vehicle. The management server 10 sets three vehicles from the plurality of vehicles registered in the power supply management list in which the exclusion flag is off and the registration number is the smallest as the supply vehicle. For example, in FIG. 4, vehicles 1 to 3 are set as supply vehicles.

In S108, the management server 10 determines whether or not there is a supply vehicle whose facility required power is larger than the battery output possible power.

In the present embodiment, the "facility required electric power" indicates a value obtained by dividing the amount of electric power consumed per hour during the event holding of the event facility 5 by the number of supplied vehicles. The management server 10 may calculate, for example, a value obtained by dividing the total power consumption of the electric devices 58 provided in the event facility 5 by the number of supplied vehicles as the facility required power. Alternatively, the management server 10 may calculate the value obtained by dividing the maximum value of the power consumption assumed when operating the electric device 58 according to the operation schedule by the number of supplied vehicles as the facility required power. Alternatively, the management server 10 is a value obtained by dividing the maximum value of the power consumption assumed when the electric device 58 is operated according to the operation schedule of the electric device 58 in the period from the present time to the lapse of a predetermined time by the number of supply vehicles. May be calculated as the facility required power.

Further, the "battery outputable power" indicates the amount of power that can be output per hour by the power storage device 20 in each of the supply vehicles. The management server 10 calculates the battery outputable power based on the difference between the current SOC of each supply vehicle and the lower limit of the SOC, for example.

The management server 10 determines whether or not the facility required power is larger than the battery output power in each of the supply vehicles, and if the facility required power is larger than the battery output power in at least one of the supply vehicles. , It is determined that there is a vehicle whose facility required power is larger than the battery output power among the supplied vehicles. When it is determined that some of the supplied vehicles have a facility required power larger than the battery outputable power (YES in S108), the process is transferred to S110.

In S110, the management server 10 determines whether or not there is a supplied vehicle whose supplyable electric energy is equal to or less than the return required electric energy. The management server 10 acquires the amount of power that can be supplied and the amount of power required for the return route in each of the supply vehicles. The management server 10 determines whether or not the amount of power that can be supplied in each of the supply vehicles is equal to or less than the amount of power required for the return route. Then, when the amount of power that can be supplied by at least one of the supply vehicles is equal to or less than the amount of power required for the return trip, the management server 10 has a vehicle in which the amount of power that can be supplied is equal to or less than the amount of power required for the return trip. Is determined. When it is determined that there is a supplied vehicle whose supplyable electric energy is equal to or less than the return required electric energy (YES in S110), the process is transferred to S112.

At S112, the management server 10 resets the supply vehicle. At this time, the management server 10 turns on the exclusion flag corresponding to the vehicle for which the electric energy that can be supplied in S110 is determined to be equal to or less than the electric energy required for the return trip. The management server 10 resets three vehicles from the one having the exclusion flag of the plurality of vehicles registered in the power supply management list in the off state and having the smallest registration number as the supply vehicle. After that, the processing is returned to S108.

If it is determined that none of the supplied vehicles has a power that can be supplied equal to or less than the required power for returning (NO in S110), the process is transferred to S114.

In S114, the management server 10 sets the engine power generation vehicle. Specifically, the management server 10 sets a vehicle whose facility required power is determined to be larger than the battery output power as an engine power generation vehicle. The management server 10 sets the engine power generation flag corresponding to the vehicle set as the engine power generation vehicle to the ON state. After that, the processing is transferred to S116.

Even if there is no vehicle for which it is determined that the facility required power is larger than the battery output power (NO in S108), the processing is transferred to S116.

In S116, the management server 10 executes power supply control to the event facility 5. The management server 10 requests, for example, the supply vehicle to be in a state where electric power can be supplied to the power supply device 53, and requests the vehicle set as the engine power generation vehicle to start the engine 63. .. When the management server 10 receives a signal from the supply vehicle that the power can be supplied, the management server 10 adjusts the power received from the supply vehicle and controls the power supply device 53 so that the power of AC100V is output. When the power supply control is started, the management server 10 sets the privilege target flag corresponding to each of the supply vehicles to the on state if it is in the off state. Vehicles for which the privilege target flag is turned on can be identified as vehicles that contributed to power supply to the event facility 5 during the event, so parking fee discounts, etc. are given to these vehicles or vehicle users. Predetermined benefits can be granted.

In S118, the management server 10 determines whether or not a predetermined time has elapsed. The management server 10 determines, for example, that the predetermined time elapses when the execution time of the power supply control elapses. If it is determined that the predetermined time has elapsed (YES in S118), the process is transferred to S102. On the other hand, when it is determined that the predetermined time has not elapsed (NO in S118), the process is transferred to S120.

In S120, the management server 10 determines whether or not the power supply is terminated. For example, when the management server 10 performs an operation for terminating the power supply control, or receives a power supply control stop request from the event facility 5, the management server 10 determines that the power supply is terminated. do. When it is determined that the power supply is terminated (YES in S120), the process is transferred to S122.

At S122, the management server 10 stops the power supply control. The management server 10 stops the power supply control by stopping the operation of the power supply device 53 or the like. At this time, the management server 10 requests the supply vehicle to stop the power supply. If the supply vehicle has a vehicle in which the engine 63 is operating, the management server 10 may request the vehicle to stop the engine 63. On the other hand, when it is determined that the power supply control is not completed (NO in S120), the process is returned to S118.

The operation of the management server 10 based on the above structure and the flowchart will be described.

For example, before the event at the event facility 5 is carried out, it is assumed that the vehicles 1 to 4 are registered in the power supply management list as shown in FIG. 4 by the registration request of the users of the vehicles 1 to 4. ..

When the power supply is started (YES in S100), the management server 10 acquires information on all vehicles (S102) and updates the power supply management list using the acquired information (S104).

The management server 10 sets three supply vehicles using the updated power supply management list (S106).

If there is no supply vehicle whose facility required power is larger than the battery outputable power (NO in S108), power supply control is executed using the power of the power storage device 20 of the supply vehicle (S116).

On the other hand, among the supplied vehicles, there is a vehicle whose facility required power is larger than the battery output possible power (YES in S108), and there is no vehicle whose supplyable power amount is less than or equal to the return required power amount (S110). NO), a vehicle whose supplyable electric energy is equal to or less than the required electric energy for the return trip is set as an engine power generation vehicle (S114). Then, the power supply control is executed using the electric power from the power storage device 20 of the supply vehicle and the electric power generated by the first MG 61 and the engine 63 (S116).

When the execution time of the power supply control elapses after a predetermined time (YES in S118), the information of all vehicles is acquired again (S102).

When power generation is performed using an engine, the remaining amount of fuel decreases due to the consumption of fuel. As a result, when the amount of power that can be supplied by the vehicle that generates electricity using the engine is less than or equal to the amount of power required for the return trip (YES in S110), the exclusion flag of the vehicle is set to the off state and the supplied vehicle. Is reset (S112), and power supply control is executed by the set supply vehicle (S116). Then, when the power supply ends (YES in S120), the power supply control is stopped (S122).

As described above, according to the power supply system according to the present embodiment, for example, electric power is continuously consumed in the electric equipment used during the holding of the event in the event facility 5, and the electric power is stored in the supply vehicle. If the power required by the power supply destination exceeds the power supply capacity of the power storage device 20 due to the decrease in the remaining amount of power of the device 20, the amount of power that can be reached to the destination on the return route is secured. As a condition, since power is supplied to the power supply device 53 using the engine 63, it is possible to appropriately meet the power demand exceeding the power supply capacity of the power storage device 20. Therefore, it is possible to provide a power supply system that appropriately meets the power demand exceeding the power supply capacity of the on-vehicle power storage device when power is supplied by using a plurality of hybrid vehicles.

Hereinafter, modification examples will be described.
In the above-described embodiment, the configuration in which the electric power of the power storage device 20 is supplied to the power supply device 53 by attaching the power supply connector 32 to the inlet 28 has been described as an example. It may be configured to supply electric power to the power receiving device connected to the power feeding device 53.

Further, in the above-described embodiment, it is assumed that any of the vehicles 1 to 4 is a hybrid vehicle having a configuration in which the first MG 61, the engine 63, and the second MG 62 are connected by the power dividing device 64 as an example. However, the vehicles 1 to 4 may be any hybrid vehicle capable of supplying power to the outside, and may be, for example, a series type hybrid vehicle or may include a hybrid vehicle of a different type.

Further, in the above-described embodiment, the vehicle in which the privilege target flag is turned on is described as giving a privilege such as a parking fee discount, but instead of the parking fee discount, a part of the parking fee cash is given. Discounts on the usage fee of the event facility 5, cash back of a part of the usage fee of the event facility 5, goods, etc. may be given, and parking space is given priority to all registered vehicles. Benefits such as securing may be given.

Further, in the above-described embodiment, it has been described that the privilege is given to the vehicle set as the supply vehicle and the power supply control is performed. However, for example, the amount of electric power supplied to the power supply device 53 in the power supply control is used. The more vehicles there are, the more advantageous the identification may be given. For example, as the amount of electric power supplied increases, the discount amount or cashback amount may be increased, or goods with a higher rank may be given as a privilege.

Further, in the above-described embodiment, the predetermined number (3 vehicles) of the plurality of registered vehicles is set as the supply vehicle, but all of the plurality of vehicles may be set as the supply vehicle. ..

In addition, the above-mentioned modification may be carried out by appropriately combining all or a part thereof.
It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1,2,3,4 Vehicles, 5 Event Facilities, 6 Communication Networks, 7 Base Stations, 8 Mobile Terminals, 10 Management Servers, 11,56 Control Devices, 12 Storage Devices, 13,54 Communication Devices, 14 Communication Buses, 20 Power storage device, 21 SMR, 22 PCU, 26 charge / discharge relay, 27 power conversion device, 28 inlet, 31 power supply cable, 32 power supply connector, 40 navigation device, 41 GPS receiver, 42 display with touch panel, 50 wireless communication device, 51 Long-distance communication module, 52 Short-range communication module, 53 power supply device, 53a, 53b, 53c, 53d input unit, 53e output unit, 58 electrical equipment, 61 1st MG, 62 2nd MG, 63 engine, 64 power splitting device, 65 Power transmission gear, 66 drive wheels, 100 ECU, 101 CPU, 102 memory, 200 power supply system.

Claims (1)

A power supply device that is connected to a plurality of electric vehicles equipped with a power storage device and an engine used for power generation, receives power from at least a part of the power supply sources of the plurality of electric vehicles, and supplies power to the power supply destination.
A storage device that stores power supply information including information on the power supply capacity of the power storage device in each of the plurality of electric vehicles and information on the power supply capacity by power generation using the engine.
When power is supplied to the power supply destination, the power required by the power supply destination exceeds the power supply capacity of the power storage device, and the amount of power that can be supplied by the power storage device and the engine is the return route of the electric vehicle. A power supply system including a control device for supplying electric power to the power supply device by using the engine in an electric vehicle of a power supply source that exceeds the amount of electric power that can reach the destination in the above.

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