Abstract: A power feed system includes a computer that evaluates benefit obtained when a power feed mat is placed, for each of a plurality of locations within a subject region where the power feed mat can be placed, the power feed mat being configured to wirelessly feed power to a movable body. In a power feed method using such a computer, a display shows a result of evaluation of the benefit for each location within the subject region evaluated by the computer.

Abstract: A control apparatus for a power receiver which wirelessly receives electric power from a power transmitter. The control apparatus being configured to execute a restriction process that restricts received power by PWM control depending on an amount of the received power. The restriction process comprises calculating an increase gap which is a difference between an initial received power and a local maximum value of the received power with respect to a change in a duty in the PWM control, starting the PWM control when a first value which is a value obtained by adding the increase gap to a current received power exceeds a second value which is a value obtained by subtracting a predetermined margin from an upper limit of the received power, and increasing the duty until the received power becomes lower than the initial received power when starting the PWM control.

Abstract: A control apparatus for a power transmitter which wirelessly transmits electric power to a power receiver, the power receiver being configured to perform restriction control that restricts received power through switching control under a predetermined condition. The control apparatus is configured to execute a determination process that determines whether or not the power receiver is performing the restriction control based on an output current and an output voltage of a power inverter included in the power transmitter, and a power control process that controls transmission power of the power transmitter based on a result of the determination process.

Abstract: A contactless power feed system includes a first ground power feed device and a second ground power feed device for performing contactless power feed to a moving body. The first ground power feed device transmits a passing signal to the second ground power feed device when entry of the moving body to a first power feed section is confirmed. The second ground power feed device transmits a power feed stop signal to the first ground power feed device when confirmation of entry or approach of the moving body to a second power feed section is not possible even after a predetermined time has elapsed after receiving the passing signal.

Abstract: A moving body includes a power receiving device configured to receive contactless power feed from a ground power feed device, and a control device. The control device is configured to take a getting-off prevention measure for preventing an occupant from getting off the moving body when the moving body gets into a state of being difficult to move on an electrified road where the ground power feed device is installed.

Abstract: A signal emitting apparatus provided in a vehicle to which power is transferred from a ground side power supplying apparatus by noncontact, includes: a signal emitting device for emitting a signal including information relating to the vehicle wirelessly toward the ground side power supplying apparatus; an outside environment acquiring part for acquiring information relating to an outside environment at surroundings of the ground side power supplying apparatus; and a control part for controlling the signal emitting device. The control part changes a mode of wireless signal emission of the signal emitting device in accordance with the outside environment.

Abstract: A noncontact power supplying system transfers power by noncontact between a ground power supplying apparatus and a vehicle. The vehicle includes a power reception side resonance circuit for receiving power, and a signal emitting device for emitting an alternating magnetic field or electric wave for transmitting vehicle identification information of the vehicle to the ground power supplying apparatus. The ground power supplying apparatus includes a power transmission side resonance circuit for transmitting power to the power reception side resonance circuit, and a signal reception device for receiving an alternating magnetic field or electric wave emitted from the signal emitting device. The ground power supplying apparatus detects a relative positional relationship between the power transmission side resonance circuit and the power reception side resonance circuit, based on the strength of the alternating magnetic field or electric wave which the signal reception device receives.

Abstract: An abnormality judgment apparatus provided with a processing part, a communicating part able to communicate with a mobile object provided with a power reception apparatus receiving power wirelessly transmitted from a power transmission apparatus installed on a road, and a storage part storing power reception history information received from the mobile object. The processing part calculates a probability of occurrence of an abnormality in the power reception apparatus of the mobile object based on the power reception history information and detects a presence of an abnormality occurring location where the power transfer efficiency becomes less than a predetermined value and judges that an abnormality has occurred in the power transmission apparatus installed at the abnormality occurring location when an abnormality occurring location is detected and the probability becomes less than a predetermined judgment threshold value.

Abstract: A power feed system includes a power feed mat and a computer. The power feed mat includes a plurality of power transmission coils. The power feed mat is configured to feed power to at least one movable body on the power feed mat by using at least one of the plurality of power transmission coils. The computer is configured to determine whether or not to permit power feed to a movable body that requests power feed. In the power feed system, when the computer determines not to permit power feed, the power feed mat does not feed power to the movable body that requests power feed.

Abstract: A management server performs processing including updating map information with change of a placement location of a power feed mat corresponding to a power feed control device being determined as not being required (S204) when the management server determines that it has received power feed information from the power feed control device (YES in S200) and when the management server determines an integrated value of an amount of power feed as being equal to or larger than a threshold value (YES in S202), updating the map information with change of the placement location of the power feed mat corresponding to the power feed control device being determined as being required (S206) when the management server determines the integrated value of the amount of power feed as being smaller than the threshold value (NO in S202), and notifying a terminal (S208).

Abstract: An elevating operation apparatus includes: an obtaining device configured to obtain a first information and a second information, wherein the first information indicates whether or not one vehicle, which has a power receiving unit for wireless electric power supply, includes an elevating mechanism for moving the power receiving unit in a height direction of the one vehicle, and the second information indicates whether or not a power supply apparatus, which is installed outside the one vehicle and which has a power transmitting unit for wireless electric power supply, includes an elevating mechanism for moving the power transmitting unit in the height direction; and a determining device configured to determine to move at least one of the power receiving unit and the power transmitting unit in the height direction on the basis of the first information and the second information.

Abstract: A plurality of power feed mats are stored as being distributed at a plurality of storage locations, and each of the plurality of power feed mats is configured to supply electric power to a movable body. A server includes a memory and a processor. Data in which an identification number, a type, and a storage location of each of the plurality of power feed mats are associated with one another is stored in the memory. The processor determines at least one power feed mat to be rented based on the data, in response to an inquiry from a user. The processor determines a storage location to be a source of rental or a storage location to be a return destination such that inventory of a plurality of types of power feed mats is ensured at each of the plurality of storage locations.

Abstract: A server includes a communication device and a processor. The communication device obtains a power rate unit price dependent on a region where external charging is performed and a time slot when external charging is performed. The processor calculates a first power rate indicating a power rate when the external charging is performed with a first power feeding facility provided at a departure place before departure of a vehicle, calculates a second power rate indicating a power rate when the external charging is performed with a second power feeding facility provided in the vicinity of a traveling route after departure of the vehicle, and when the second power rate is lower than the first power rate, reduces an amount of power feeding during the external charging with the first power feeding facility, as compared with when the second power rate is equal to or higher than the first power rate.

Abstract: A running mode proposal device for proposing a running mode up to a destination of a vehicle is configured to: select a first running route by a predetermined algorithm unrelated to noncontact power supply; project, when assuming the vehicle runs on a predetermined running route, a value of a parameter relating to an electric energy projected as being supplied at a power supply section on the running route to the vehicle; select a second running route by which a projected supplied electric energy will be greater than a predetermined standard electric energy if the projected value of the parameter when assuming the vehicle runs on the first running route is a value indicating the projected supplied electric energy is less than the standard electric energy; and propose, as the running route, the first running route, and, when the second running route is selected, further proposing a second running route.

Abstract: A ground power supply apparatus for transmitting power to a vehicle by noncontact has: a plurality of power transmission apparatuses for transmitting power to the vehicle; at least one detection device for detecting a signal emitted from the vehicle using narrow range wireless communication; and a controller for controlling the power transmission apparatuses. The power transmission apparatuses are arranged in a road aligned in a direction of advance of the vehicle. One first detection device is arranged so as to enable detection of the signal at an upstream side from the most upstream power transmission apparatus. The control device controls transmission of power from power transmission apparatuses other than the first power transmission apparatus positioned the most upstream, based on the signal detected by the first detection device and power transmission result information at the power transmission apparatus positioned upstream of that power transmission apparatus.

Abstract: A computing device includes a CPU and a memory. A vehicle travels by consuming first electric power and second electric power. The first electric power is electric power, generation of a unit amount of which causes emission of a first amount of carbon dioxide. The second electric power is electric power, generation of a unit amount of which causes emission of a second amount of carbon dioxide, the second amount being smaller than the first amount. The CPU creates a charging plan based on a first ratio occupied by the second electric power in electric power supplied from a first charging position on a travel route of the vehicle.

Abstract: A management system is configured to manage a power feed mat that wirelessly feeds power to a movable body. The power feed mat is configured to communicate while it is placed at a prescribed location. This management system includes a monitoring apparatus that monitors communication by the power feed mat and a processing apparatus that performs prescribed processing when the monitoring apparatus senses loss of the communication.

Abstract: An information processing apparatus accepts an inquiry about rental of a power feed mat that can supply electric power to a movable body. The power feed mat includes a substrate including a power transmission coil and a functional body that performs at least one function of a plurality of functions. The inquiry includes an instruction to designate the at least one function of the plurality of functions. In the information processing apparatus, association information in which function information is associated with identification information of each of a plurality of power feed mats is stored. The function information indicates which of the plurality of functions the power feed mat performs. The information processing apparatus specifies at least one power feed mat among the plurality of power feed mats based on the accepted inquiry and the association information and provides information based on a result of specifying.

Abstract: A power feed system includes a computer that evaluates benefit obtained when a power feed mat is placed, for each of a plurality of locations within a subject region where the power feed mat can be placed, the power feed mat being configured to wirelessly feed power to a movable body. In a power feed method using such a computer, a display shows a result of evaluation of the benefit for each location within the subject region evaluated by the computer.

Abstract: An information processing apparatus accepts an inquiry about rental of a power feed mat that can supply electric power to a movable body. In the information processing apparatus, association information in which category information is associated with identification information of each of a plurality of power feed mats is stored. The category information indicates to which of a plurality of categories set for characteristics at least one characteristic of the power feed mat belongs. The information processing apparatus specifies at least one power feed mat among the plurality of power feed mats based on the accepted inquiry and the association information. The information processing apparatus provides information based on a result of specifying.