JP2021083143A - Control device, system, vehicle, and program - Google Patents

Abstract

To solve a problem in which an acceptable electric power of a vehicle may be exceeded when a regenerative electric power is generated while the vehicle receives an electric power from outside during driving.SOLUTION: A control device controls an electric power transmission between an electric power transmission device installed on a road and a driving vehicle. The control device comprises: a regenerative electric power acquisition unit that acquires a regenerative electric power generated in the vehicle; a specification unit that specifies the upper limit of an electric power that a battery can further accept in addition to the regenerative electric power based on the maximum charge electric power of the battery of the vehicle and the regenerative electric power; and a control unit that controls the electric power which is transmitted from the electric power transmission device to the vehicle, so as to be less than the upper limit.SELECTED DRAWING: Figure 3

Description

The present invention relates to control devices, systems, vehicles and programs.

Patent Document 1 discloses, as an energy recovery system for an electric vehicle, a system that travels while regeneratively controlling a vehicle motor on a downhill road and charges a stationary battery with surplus electric power when the in-vehicle battery is fully charged.
[Prior art literature]
[Patent Document]
[Patent Document 1] Japanese Unexamined Patent Publication No. 2015-76930

For example, in a vehicle traveling by a motor, regenerative power may be generated from the motor while the vehicle is traveling. Therefore, for example, if regenerative electric power is generated when the vehicle receives electric power from the outside while traveling, the electric power that can be accepted by the vehicle may be exceeded.

In the first aspect of the present invention, a control device is provided. The control device controls the power transmission between the power transmission device provided on the road and the moving vehicle. The control device includes a regenerative power acquisition unit that acquires the regenerative power generated in the vehicle. The control device includes a specific unit that specifies an upper limit of the power that the battery can accept in addition to the regenerative power, based on the maximum charge power and the regenerative power of the battery that the vehicle has. The control device includes a suppression unit that suppresses the power transmitted from the power transmission device to the vehicle to less than the upper limit value.

The suppression unit may notify the power transmission device of information indicating the upper limit value and suppress the power output from the power transmission device to less than the upper limit value.

The control device may include a road information acquisition unit that acquires gradient information of the road on which the power transmission device is provided. The regenerative power acquisition unit may predict the regenerative power generated when the vehicle is passing through the road based on the gradient information. The suppression unit may notify the power transmission device of information indicating the upper limit value before the vehicle passes through the power transmission device.

The regenerative power acquisition unit predicts the regenerative power generated when the vehicle is passing over the power transmission device based on the predicted value of the braking force required for the vehicle at the position where the power transmission device is provided. Good. The specific unit may predict the upper limit of the power that the battery can accept in addition to the regenerative power, based on the regenerative power predicted by the regenerative power acquisition unit. The suppression unit may notify the power transmission device of information indicating the upper limit value predicted by the specific unit before the vehicle passes through the power transmission device.

The vehicle may be equipped with a power receiving circuit that receives power from the power transmission device in a non-contact manner. The suppression unit may suppress the power received by the power receiving circuit from the power transmission device to less than the upper limit value.

The power transmission device and the power receiving circuit may perform power transmission by a magnetic field resonance method or an electric field resonance method. The suppression unit may suppress the power received by the power receiving circuit to less than the upper limit value by changing the resonance frequency of the power receiving circuit.

In the second aspect of the invention, the system is provided. The system includes the above control device. The system may include a first power transmission device provided on the first road. The system may include a roadside power storage device that stores the power transmitted from the vehicle in the first power transmission device. The system may include a second power transfer device provided on the second road. The control device may include a charge / discharge control unit that transmits power that cannot be received by the battery among the regenerative power generated by the vehicle traveling on the first road to the first power transmission device. The second power transmission device may use the power stored in the roadside power storage device to supply power to another vehicle traveling on the second road.

The first road may be a downhill road and the second road may be an uphill road.

In the third aspect of the present invention, a vehicle is provided. The vehicle is equipped with the above-mentioned control device.

In a fourth aspect of the invention, a program is provided. The program causes the computer to function as the control device described above.

The outline of the above invention does not list all the necessary features of the present invention. Sub-combinations of these feature groups can also be inventions.

The basic configuration of the vehicle system 100 is shown schematically. The functional configuration of the control device 44 is schematically shown. The outline of the control by the suppression unit 230 is schematically shown. The control to be executed while the vehicle 40 is running is shown. It is a flowchart which shows the procedure of the process which a control device 44 executes. The overall configuration of the vehicle system 100 is shown schematically. An example of a computer 2000 in which a plurality of embodiments of the present invention can be embodied in whole or in part is shown.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the inventions that fall within the scope of the claims. Also, not all combinations of features described in the embodiments are essential to the means of solving the invention. In the drawings, the same or similar parts may be given the same reference number to omit duplicate explanations.

FIG. 1 schematically shows the basic configuration of the vehicle system 100. The vehicle system 100 includes a vehicle 40, a server 20, and a power transmission device 30. The vehicle 40 is an example of transportation equipment. The vehicle 40 is a vehicle including a power source driven by electric energy, such as an electric vehicle. Electric vehicles include battery-powered electric vehicles (BEVs) and hybrid or plug-in hybrid electric vehicles (PHEVs) equipped with an internal combustion engine that provides at least a portion of the power.

The vehicle 40 includes a battery 42, a control device 44, a power transmission / reception unit 48, and a motor 46. The control device 44 is, for example, an ECU (Electronic Control Unit) or the like. The battery 42 is a secondary battery such as a lithium ion battery or a nickel hydrogen battery. The motor 46 is driven by the electric power stored in the battery 42. The motor 46 is the power source for the vehicle 40.

The plurality of power transmission devices 30 are provided on the road surface of the road 80 or in the vicinity of the road surface. The power transmission / reception unit 48 sequentially receives power from a plurality of power transmission devices 30 in a non-contact manner while the vehicle 40 is traveling. The power transmission / reception unit 48 receives power from the power transmission device 30 in a non-contact manner, for example, via a magnetic field. As a non-contact power transmission method from the power transmission device 30 to the power transmission / reception unit 48, for example, a magnetic field resonance coupling method can be used. For example, the power transmission device 30 includes a road side coil as a primary side coil and a ground side circuit as a primary side coil, and the power transmission / reception unit 48 is a vehicle side coil and a secondary side coil as a secondary side coil. It has a vehicle-side circuit. When the road side coil and the vehicle side coil are in a positional relationship of magnetically coupling, the road side circuit, the road side coil, the vehicle side coil, and the vehicle side circuit can be driven by driving the road side circuit at a specific drive frequency. A resonance circuit is formed equivalently, and power is transmitted from the power transmission device 30 to the vehicle 40 in a non-contact manner. The control device 44 charges the battery 42 with the electric power received from the power transmission device 30 by the power transmission / reception unit 48 while the vehicle 40 is traveling.

The power transmission device 30 is provided in, for example, a charging lane. The charging lane is a lane in which the vehicle 40 travels when receiving power from the power transmission device 30. The power transmission device 30 is provided at regular intervals along the traveling direction of the vehicle 40. The control device 44 charges the battery 42 with the electric power received from the power transmission device 30 while the vehicle 40 is traveling in the charging lane.

The power transmission / reception unit 48 of the vehicle 40 can supply electric power to the power transmission device 30. The road side coil of the power transmission device 30 functions as a secondary coil, the road side circuit of the power transmission device 30 serves as a secondary circuit, and the vehicle side coil of the power transmission / reception unit 48 becomes a primary side coil. When the vehicle-side circuit of 48 functions as the primary-side circuit, electric power can be supplied from the power transmission / reception unit 48 to the power transmission device 30. As a result, the electric power stored in the battery 42 can be supplied to the power transmission device 30.

The server 20 provides information to the control device 44 and the power transmission device 30 of the vehicle 40. The server 20 provides the control device 44 with information indicating the position where the power transmission device 30 is provided. The server 20 may mediate communication between the control device 44 of the vehicle 40 and the power transmission device 30.

Usually, the battery 42 is defined with a maximum charging power. It is necessary to prevent power exceeding the maximum charging power from being input to the battery 42. In the present embodiment, the maximum charging power of the battery 42 is referred to as "acceptable power".

For example, when the vehicle 40 travels without supplying electric power to the motor 46, regenerative electric power is generated from the motor 46. In particular, when the vehicle 40 travels on a downhill road or when the vehicle 40 is braked, a relatively large amount of regenerative power is generated. If power is supplied from the power transmission / reception unit 48 to the power transmission device 30 in a state where such regenerative power is generated, there is a possibility that power exceeding the acceptable power is input to the battery 42. Therefore, the control device 44 suppresses the power received from the power transmission device 30 so that the power input to the battery 42 is equal to or less than the acceptable power. For example, the control device 44 notifies the power transmission device 30 to suppress the power supply. Further, the control device 44 suppresses the power received from the power transmission device 30 by controlling the circuit parameters of the power transmission / reception unit 48.

FIG. 2 schematically shows the functional configuration of the control device 44. The control device 44 includes a processing unit 280 and a storage unit 290. The processing unit 280 is realized by a processing device including a processor. The storage unit 290 is realized by including a non-volatile storage medium. The processing unit 280 performs processing using the information stored in the storage unit 290.

The processing unit 280 controls the power transmission between the power transmission device 30 provided on the road 80 and the moving vehicle 40. The processing unit 280 includes a regenerative power acquisition unit 200, a road information acquisition unit 210, and a charge / discharge control unit 270.

The regenerative power acquisition unit 200 acquires the regenerative power generated in the vehicle 40. The identification unit 220 specifies an upper limit of the power that the battery can accept in addition to the regenerative power, based on the maximum charge power and the regenerative power of the battery 42. The suppression unit 230 suppresses the electric power transmitted from the power transmission device 30 to the vehicle 40 to less than the upper limit value. For example, the suppression unit 230 notifies the power transmission device 30 of information indicating an upper limit value, and suppresses the power output from the power transmission device 30 to less than the upper limit value.

The road information acquisition unit 210 acquires gradient information of the road on which the power transmission device 30 is provided. The regenerative power acquisition unit 200 predicts the regenerative power generated when the vehicle 40 is passing through the road 80 based on the gradient information. The suppression unit 230 notifies the power transmission device 30 of information indicating the upper limit value before the vehicle 40 passes through the power transmission device 30.

The regenerative power acquisition unit 200 regenerates when the vehicle 40 is passing over the power transmission device 30 based on the predicted value of the braking force required for the vehicle 40 at the position where the power transmission device 30 is provided. Predict power. Based on the regenerative power predicted by the regenerative power acquisition unit 200, the specific unit 220 predicts an upper limit value of the power that the battery 42 can receive in addition to the regenerative power. Before the vehicle 40 passes through the power transmission device 30, the suppression unit 230 notifies the power transmission device 30 of information indicating the upper limit value predicted by the specific unit 220.

The power transmission / reception unit 48 of the vehicle 40 includes a vehicle-side circuit that receives power from the power transmission device 30 in a non-contact manner. The suppression unit 230 suppresses the power received from the power transmission device 30 by the vehicle-side circuit of the power transmission / reception unit 48 to less than the upper limit value. As described above, the vehicle-side circuits of the power transmission device 30 and the power transmission / reception unit 48 perform power transmission by the magnetic field resonance coupling method. The suppression unit 230 suppresses the power received by the power receiving circuit to less than the upper limit value by changing the resonance frequency of the vehicle side circuit of the power transmitting / receiving unit 48. Similarly, when the vehicle-side circuits of the power transmission device 30 and the power transmission / reception unit 48 perform power transmission by the electric field resonance coupling method, the suppression unit 230 changes the resonance frequency of the vehicle-side circuit to cause the power reception circuit. The received power may be suppressed to less than the upper limit.

The charge / discharge control unit 270 controls the charge / discharge of the battery 42. For example, the charge / discharge control unit 270 controls the charge circuit and the discharge circuit of the battery 42. Specifically, the charge / discharge control unit 270 controls a charging circuit connected to the power transmission / reception unit 48 when receiving power from the power transmission device 30 via the power transmission / reception unit 48. The charge / discharge control unit 270 controls a discharge circuit connected to the power transmission / reception unit 48 when transmitting power to the power transmission device 30 via the power transmission / reception unit 48.

FIG. 3 schematically shows an outline of control by the suppression unit 230. The battery 42 is defined with an acceptable power Pmax. When the regenerative power is P1, the upper limit of the received power is Pmax-P1. The suppression unit 230 notifies the power transmission device 30 of Pmax-P1 and suppresses the upper limit of the power output from the power transmission device 30 to Pmax-P1 or less.

When the regenerative power changes from P1 to P2, the upper limit of the received power changes to Pmax-P2. The suppression unit 230 notifies the power transmission device 30 of Pmax-P2 and suppresses the upper limit of the power output from the power transmission device 30 to Pmax-P2 or less.

FIG. 4 shows the control that the vehicle 40 executes while traveling. The road information acquisition unit 210 receives from the server 20 the gradient information of the road 80 ahead in the traveling direction of the vehicle 40, the position where the power transmission device 30 is provided, and the identification information of the power transmission device 30. The regenerative power acquisition unit 200 predicts the time change of the regenerative power based on the gradient information and the current vehicle speed of the vehicle 40. The regenerative power acquisition unit 200 predicts the time change of the regenerative power by predicting the timing and braking force at which braking of the vehicle 40 occurs based on the vehicle speed and gradient information of the vehicle 40. Reference numeral 410 in FIG. 4 indicates the predicted magnitude of regenerative power.

Reference numeral 400 in FIG. 4 indicates an acceptable power Pmax. The suppression unit 230 determines the upper limit value of the received power so that the total value of the regenerated power and the received power does not exceed Pmax. Reference numeral 420 in FIG. 4 indicates an upper limit value of the received power determined by the suppression unit 230.

The suppression unit 230 preliminarily sets the expected passing time at which the vehicle 40 passes the position where each power transmission device 30 is provided, the upper limit value of the received power, and the identification information of the vehicle 40 in each of the power transmission devices 30. Notice. The suppression unit 230 may notify the power transmission device 30 through the server 20. For example, the suppression unit 230 transmits notification information including the expected passing time, the upper limit value of the received power, and the identification information of the vehicle 40 to the server 20 together with the identification information of the power transmission device 30 of the notification destination to notify the server 20. You may ask the server 20 to send the information to the power transfer device 30.

When the power transmission device 30 supplies power to the vehicle 40, the power transmission device 30 receives power of the vehicle 40 based on the identification information and the current time directly received from the power transmission device 30 and the previously received expected time and identification information. Specify the upper limit. The power transmission device 30 outputs electric power to the vehicle 40 so that the output electric power does not exceed the specified upper limit value.

FIG. 5 is a flowchart showing a procedure of processing executed by the control device 44. The processing of this flowchart is repeatedly executed, for example, while the vehicle 40 is traveling in the charging lane provided with the power transmission device 30, or before the vehicle 40 reaches the charging lane for a predetermined time. To.

In S600, the regenerative power acquisition unit 200 predicts the regenerative power. For example, the regenerative power acquisition unit 200 predicts the regenerative power generated when passing through the power transmission device 30 located ahead in the traveling direction based on the gradient information and the vehicle speed acquired by the road information acquisition unit 210. Further, the road information acquisition unit 210 may acquire information indicating the curvature information of the curve, and the regenerative power acquisition unit 200 may predict the regenerative power based on the curvature information and the vehicle speed.

In S602, the specific unit 220 predicts the upper limit value of the received power of the power transmitting / receiving unit 48 when passing through the power feeding device 30 based on the regenerative power predicted in S600. In S604, the suppression unit 230 notifies each of the power transmission devices 30 of the upper limit of the received power predicted in S602. Specifically, it makes a prediction. In S606, the suppression unit 230 determines whether or not the current regenerative power is larger than the regenerative power predicted in S602 based on the information acquired from the charge / discharge control unit 270. If the current regenerative power is less than or equal to the predicted regenerative power, the processing of this flowchart ends.

When the current regenerative power is larger than the predicted regenerative power, the suppression unit 230 controls the circuit parameters of the vehicle-side circuit included in the power transmission / reception unit 48 to suppress the power transmission device 30. For example, when the power transmission / reception unit 48 and the power transmission device 30 transmit power by a magnetic field resonance coupling method, the characteristic frequency of the vehicle side circuit is changed from the resonance frequency by changing the capacitance value and the inductance value of the vehicle side circuit. Try to shift. As a result, the battery 42 can be protected even when the regenerative power becomes larger than expected.

According to the vehicle system 100 described above, the power received from the power transmission device 30 can be suppressed so as not to exceed the acceptable power of the battery 42 when the regenerative power is generated. Therefore, it is possible to reduce the amount of electric power wasted in the vehicle 40 in order to protect the battery 42. Further, according to the vehicle system 100, it becomes possible to use the battery 42 having a small acceptable power. Therefore, the cost of the entire vehicle 40 can be reduced.

The motor 46 in the vehicle 40 is an example of a power generation device included in the vehicle 40. The suppression unit 230 may suppress the power received from the power transmission device 30 so as not to exceed the acceptable power of the battery 42 based on the power generated by any power generation device including the motor 46.

FIG. 6 schematically shows the overall configuration of the vehicle system 100. In addition to the above-described configuration, the vehicle system 100 includes a power storage device 600, a power transmission / reception control device 620, and a power network 610. The vehicle 40a is a vehicle 40 traveling on a downhill road 80a. The vehicle 40b is a vehicle 40 traveling on an uphill road 80b. The downhill road 80a is an example of the first road, and the uphill road 80b is an example of the second road.

The power transmission device 30 is provided on the uphill road 80b and the downhill road 80a. Each of the power transmission devices 30 is connected to the power storage device 600 via the power network 610. The power network 610 is a power network that does not go through the power system. The power transmission / reception control device 620 controls the power supply from the power storage device 600 to the power transmission device 30 that supplies power to the vehicle 40. The power transmission / reception control device 620 controls the power supply from the power transmission device 30 receiving power from the vehicle 40 to the power storage device 600.

The power transmission device 30 provided on the uphill road 80b is an example of the first power transmission device. The power transmission device 30 provided on the downhill road 80a is an example of the second power transmission device. The power storage device 600 is an example of a roadside power storage device that stores the power transmitted from the vehicle 40 in the first power transmission device 30. The "uphill road 80b" and "downhill road 80a" may be the uphill lane and the downhill lane of the same slope.

In the vehicle 40a getting off the downhill road 80a, a large amount of regenerative power is generated. When the regenerative power is larger than the acceptable power of the battery 42, the charge / discharge control unit 270 discharges the power that the battery 42 cannot accept to the power transmission device 30 provided on the downhill road 80a. The electric power discharged from the vehicle 40 to the power transmission device 30 is stored in the power storage device 600.

On the other hand, the vehicle 40b climbing the uphill road 80b requires electric power. The electric power transmission device 30 provided on the uphill road 80b uses the electric power stored in the power storage device 600 to supply electric power to the vehicle 40b traveling on the uphill road 80b. In this way, since the power transmission device 30 provided on the uphill road 80b and the power transmission device 30 provided on the downhill road 80a are connected by the same power storage device 600, the connection capacity with an external power network such as a grid power supply is used. Can be made smaller. Moreover, the capacity of the power storage device 600 can be reduced.

As a combination of the uphill road 80b and the downhill road 80a, the place where the electric power received from the vehicle 40 can be accumulated and supplied to the vehicle 40 is near the entrance / exit of the curve or the stop of the traffic signal. The vicinity of the line, the vicinity of the entrance of the parking lot, the vicinity of the entrance of the tollhouse, etc. can be mentioned.

FIG. 7 shows an example of a computer 2000 in which a plurality of embodiments of the present invention can be embodied in whole or in part. The program installed on the computer 2000 causes the computer 2000 to function as a device such as the control device 44 according to the embodiment or each part of the device, perform an operation associated with the device or each part of the device, and / or , The process according to the embodiment or the stage of the process can be executed. Such a program may be executed by the CPU 2012 to cause the computer 2000 to perform specific operations associated with some or all of the processing procedures and blocks of the block diagram described herein.

The computer 2000 according to this embodiment includes a CPU 2012 and a RAM 2014, which are connected to each other by a host controller 2010. The computer 2000 also includes a ROM 2026, a flash memory 2024, a communication interface 2022, and an input / output chip 2040. The ROM 2026, the flash memory 2024, the communication interface 2022, and the input / output chip 2040 are connected to the host controller 2010 via the input / output controller 2020.

The CPU 2012 operates according to the programs stored in the ROM 2026 and the RAM 2014, thereby controlling each unit.

The communication interface 2022 communicates with other electronic devices via the network. The flash memory 2024 stores programs and data used by the CPU 2012 in the computer 2000. The ROM 2026 stores a boot program or the like executed by the computer 2000 at the time of activation, and / or a program depending on the hardware of the computer 2000. The input / output chip 2040 also allows various input / output units such as keyboards, mice and monitors to input / output units such as serial ports, parallel ports, keyboard ports, mouse ports, monitor ports, USB ports, HDMI® ports, etc. It may be connected to the input / output controller 2020 via the output port.

The program is provided via a computer-readable medium or network such as a CD-ROM, DVD-ROM, or memory card. RAM 2014, ROM 2026, or flash memory 2024 are examples of computer-readable media. The program is installed in flash memory 2024, RAM 2014, or ROM 2026 and is executed by CPU 2012. The information processing described in these programs is read by the computer 2000 and provides a link between the program and the various types of hardware resources described above. The device or method may be configured to implement the operation or processing of information in accordance with the use of computer 2000.

For example, when communication is executed between the computer 2000 and the external device, the CPU 2012 executes the communication program loaded in the RAM 2014, and performs communication processing on the communication interface 2022 based on the processing described in the communication program. You may order. Under the control of the CPU 2012, the communication interface 2022 reads the transmission data stored in the transmission buffer processing area provided in the recording medium such as the RAM 2014 and the flash memory 2024, transmits the read transmission data to the network, and transmits the read transmission data from the network. The received received data is written to the reception buffer processing area or the like provided on the recording medium.

Further, the CPU 2012 makes the RAM 2014 read all or necessary parts of the file or the database stored in the recording medium such as the flash memory 2024, and executes various kinds of processing on the data on the RAM 2014. Good. The CPU 2012 then writes back the processed data to the recording medium.

Various types of information such as various types of programs, data, tables, and databases may be stored in recording media and processed for information processing. The CPU 2012 refers to the data read from the RAM 2014 in various types of operations, information processing, conditional determination, conditional branching, unconditional branching, information retrieval / described in the present specification and specified by the instruction sequence of the program. Various types of processing, including replacement, may be performed and the results are written back to RAM 2014. Further, the CPU 2012 may search for information in a file, a database, or the like in the recording medium. For example, when a plurality of entries each having an attribute value of the first attribute associated with the attribute value of the second attribute are stored in the recording medium, the CPU 2012 specifies the attribute value of the first attribute. The entry that matches the condition is searched from the plurality of entries, the attribute value of the second attribute stored in the entry is read, and the first attribute satisfying the predetermined condition is selected. You may get the attribute value of the associated second attribute.

The program or software module described above may be stored on or near a computer 2000 on a computer-readable medium. A recording medium such as a hard disk or RAM provided in a dedicated communication network or a server system connected to the Internet can be used as a computer-readable medium. A program stored on a computer-readable medium may be provided to the computer 2000 via a network.

A program installed in the computer 2000 that causes the computer 2000 to function as the control device 44 may act on the CPU 2012 or the like to cause the computer 2000 to function as each part of the control device 44. When the information processing described in these programs is read into the computer 2000, it functions as each part of the control device 44, which is a concrete means in which the software and the various hardware resources described above cooperate with each other. Then, by realizing the calculation or processing of information according to the purpose of use of the computer 2000 in the present embodiment by these specific means, a specific control device 44 according to the purpose of use is constructed.

Various embodiments have been described with reference to block diagrams and the like. In the block diagram, each block may represent (1) the stage of the process in which the operation is performed or (2) each part of the device responsible for performing the operation. Specific stages and parts are implemented by dedicated circuits, programmable circuits supplied with computer-readable instructions stored on a computer-readable medium, and / or processors supplied with computer-readable instructions stored on a computer-readable medium. You can. Dedicated circuits may include digital and / or analog hardware circuits, and may include integrated circuits (ICs) and / or discrete circuits. Programmable circuits are memory elements such as logical AND, logical OR, logical XOR, logical NAND, logical NOR, and other logical operations, flip-flops, registers, field programmable gate arrays (FPGA), programmable logic arrays (PLA), etc. May include reconfigurable hardware circuits, including, etc.

The computer-readable medium may include any tangible device capable of storing instructions executed by the appropriate device, so that the computer-readable medium having the instructions stored therein is specified in the processing procedure or block diagram. Consists of at least a portion of a product that contains instructions that can be executed to provide a means to perform the performed operation. Examples of computer-readable media may include electronic storage media, magnetic storage media, optical storage media, electromagnetic storage media, semiconductor storage media, and the like. More specific examples of computer-readable media include floppy (registered trademark) disks, diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), Electrically erasable programmable read-only memory (EEPROM), static random access memory (SRAM), compact disk read-only memory (CD-ROM), digital versatile disk (DVD), Blu-ray (RTM) disk, memory stick, integrated A circuit card or the like may be included.

Computer-readable instructions are assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state-setting data, or object-oriented programming such as Smalltalk, JAVA®, C ++, etc. Includes either source code or object code written in any combination of one or more programming languages, including languages and traditional procedural programming languages such as the "C" programming language or similar programming languages. Good.

Computer-readable instructions are applied locally to a general purpose computer, a special purpose computer, or the processor or programmable circuit of another programmable data processor, or a wide area network (WAN) such as a local area network (LAN), the Internet, etc. A computer-readable instruction may be executed to provide a means for performing the processing procedure or operation specified in the block diagram provided via). Examples of processors include computer processors, processing units, microprocessors, digital signal processors, controllers, microcontrollers and the like.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. Further, to the extent that there is no technical contradiction, the matters described for the specific embodiment can be applied to other embodiments. It is clear from the description of the claims that such modified or improved forms may also be included in the technical scope of the present invention.

The order of execution of operations, procedures, steps, steps, etc. in the devices, systems, programs, and methods shown in the claims, specification, and drawings is particularly "before" and "prior to". It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Even if the scope of claims, the specification, and the operation flow in the drawings are explained using "first", "next", etc. for convenience, it means that it is essential to carry out in this order. It's not a thing.

20 Server 30 Power transmission device 40 Vehicle 42 Battery 44 Control device 46 Motor 48 Power transmission / reception unit 80 Road 100 Vehicle system 200 Regenerative power acquisition unit 210 Road information acquisition unit 220 Specific unit 230 Suppression unit 270 Charge / discharge control unit 280 Processing unit 290 Storage Part 600 Power storage device 610 Power network 620 Power transmission / reception control device 2000 Computer 2010 Host controller 2012 CPU
2014 RAM
2020 Input / Output Controller 2022 Communication Interface 2024 Flash Memory 2026 ROM
2040 Input / Output Chip

Claims (10)

A control device that controls power transmission between a power transmission device installed on the road and a moving vehicle.
A regenerative power acquisition unit that acquires the regenerative power generated in the vehicle, and a regenerative power acquisition unit.
Based on the maximum charge power of the battery provided in the vehicle and the regenerative power, a specific unit that specifies an upper limit value of the power that the battery can further accept in addition to the regenerative power, and a specific unit.
A control device including a suppression unit that suppresses the electric power transmitted from the power transmission device to the vehicle to less than the upper limit value. The control device according to claim 1, wherein the suppression unit notifies the power transmission device of information indicating the upper limit value, and suppresses the power output from the power transmission device to less than the upper limit value. A road information acquisition unit for acquiring slope information of the road provided with the power transmission device is further provided.
The regenerative power acquisition unit predicts the regenerative power generated when the vehicle is passing through the road based on the gradient information.
The control device according to claim 2, wherein the suppression unit notifies the power transmission device of information indicating the upper limit value before the vehicle passes through the power transmission device. The regenerative power acquisition unit is generated when the vehicle is passing over the power transmission device based on a predicted value of braking force required for the vehicle at a position where the power transmission device is provided. Predict regenerative power,
Based on the regenerative power predicted by the regenerative power acquisition unit, the specific unit predicts an upper limit value of the power that the battery can receive in addition to the regenerative power.
The control device according to claim 2 or 3, wherein the suppression unit notifies the power transmission device of information indicating the upper limit value predicted by the specific unit before the vehicle passes through the power transmission device. The vehicle includes a power receiving circuit that receives power from the power transmission device in a non-contact manner.
The control device according to claim 1, wherein the suppression unit suppresses the power received by the power receiving circuit from the power transmission device to be less than the upper limit value. The power transmission device and the power receiving circuit perform power transmission by a magnetic field resonance method or an electric field resonance method, and perform power transmission.
The control device according to claim 5, wherein the suppression unit suppresses the power received by the power receiving circuit to less than the upper limit value by changing the resonance frequency of the power receiving circuit. The control device according to any one of claims 1 to 6.
The first power transmission device installed on the first road and
A roadside power storage device that stores the power transmitted from the vehicle in the first power transmission device, and
Equipped with a second power transmission device installed on the second road,
The control device is
A charge / discharge control unit for transmitting power that cannot be received by the battery among the regenerative power generated in the vehicle traveling on the first road to the first power transmission device is further provided.
The second power transmission device is a system that supplies electric power to another vehicle traveling on the second road by using the electric power stored in the roadside power storage device. The system according to claim 7, wherein the first road is a downhill road and the second road is an uphill road. A vehicle including the control device according to any one of claims 1 to 6. A program for causing a computer to function as the control device according to any one of claims 1 to 6.

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