Abstract: A vehicle includes a power receiving portion that is mounted below a floor panel and that receives electric power in a contactless manner from a power transmitting portion provided outside the vehicle, an electromagnetic shield that prevents an electromagnetic field from passing through, a power receiving portion cover that allows the electromagnetic field to pass through and covers the power receiving portion, and an undercover that allows the electromagnetic field to pass through and covers the power receiving portion cover.

Abstract: A power feeding system is provided, in which a detected value of reflected power at a power supply device in a power feeding installation is sent from the power feeding installation to a vehicle via a first communication device, the vehicle has an impedance matching device for adjusting an impedance at a resonance system that is constituted of a power transmission resonator, including a primary self-resonant coil and a primary coil in the power feeding installation, and a power receiving resonator, including a secondary self-resonant coil and a secondary coil in the vehicle, and the impedance matching device is controlled based on the detected value of the reflected power at the power supply device, which has been received from the power feeding installation.

Abstract: A power transmitting device includes a power transmitting portion that contactlessly transmits electric power to a power receiving portion. The power transmitting portion has a resonance coil (24) and a tubular member (240) that faces the resonance coil (24). At least one portion of the tubular member (240) is electrically cut off.

Abstract: A conductive terminal includes a connecting portion in which a plurality of wires each having a rectangular cross section are to be arranged in parallel and to which the wires are to be electrically connected. The connecting portion has a structure to cover the wires. The connecting portion includes a position regulation member to regulate positions of the wires in an arrangement direction in which the wires are arranged. The position regulation member is provided to face at least one side surface of a wire located at an end of the wires in the arrangement direction.

Abstract: A vehicle includes a power receiving portion that contactlessly receives electric power from a power transmitting portion provided outside the vehicle and includes a shield member that is arranged around the power receiving portion in the same plane as a plane in which the power receiving portion is arranged, wherein the shield member includes a first shield region having a high shielding function and a second shield region having a shielding function lower than that of the first shield region at a position around the power receiving portion.

Abstract: A body motion detection section (2) for continuously detecting the frequency of a user's activity as an activity level is provided. The activity level detected by the body motion detection section (2) is outputted to a fatigue detection section (3) for estimating a user's fatigue level on the basis of the activity level.

Abstract: This vehicle incorporates a battery including a battery charged with external electric power, a charging-related device including a charging device used for charging of the battery, and a first coolant device introducing a coolant for cooling the battery and the charging device into the battery and the charging-related device, and the first coolant device is provided to allow switching between a first state in which the coolant is introduced into the battery and a second state in which the coolant is introduced into the charging-related device.

Abstract: The vehicle includes a floor panel, a power reception device configured to receive power in a non-contact manner from a power transmission device disposed in the external, and a battery connected to the power reception device. The battery is disposed above the floor panel. The power reception device is disposed below the floor panel. The power reception device and the battery are disposed to overlap each other at least partially in planar view.

Abstract: A power transmission apparatus includes a power transmission unit and a power supply unit. A wireless power reception apparatus includes a power reception unit capable of wirelessly receiving electric power from the power transmission unit, and a control unit performing control for positional alignment between the power reception unit and the power transmission unit and for reception of electric power after the positional alignment. The magnitude of electric power received by the power reception unit from the power transmission unit is used for positional alignment between the power reception unit and the power transmission unit. The control unit sets a parameter of a power transmission and reception path so that a power receivable range that can be received by the power reception unit at any time while positional alignment is done is wider than that when electric power is received after the positional alignment.

Abstract: An electric power reception device includes an electric power receiver that receives electric power in a non-contact manner from an electric power transmitter that is provided externally. The electric power receiver includes a first coil that is formed by winding a first coil wire with a pitch. The first coil includes a first portion and a second portion that are adjacent to the first portion with the pitch. The first portion and the second portion are arranged in a direction of arrangement.

Abstract: A power receiving device includes: a power receiving unit receiving electric power from an external power transmitting unit contactlessly; a first coil; a first shielding wall surrounding the first coil; a first device; a first shielding casing having the first device accommodated therein, the first shielding casing being also disposed inside the first shielding wall; and a first wiring connected to the first device and extending from inside the first shielding casing to outside the first shielding casing, and also pulled outside the first shielding wall, the first shielding casing having an external surface including a first opposite portion closer to the first shielding wall than the first coil, the first shielding wall having a first region opposite to the first opposite portion, the first region having a first hole, the first wiring being pulled outside the first shielding wall through the first hole.

Abstract: A power transmitting device includes: a power transmitting portion that contactlessly transmits electric power to a power receiving portion spaced apart from the power transmitting portion; a first coil unit that is spaced apart from the power transmitting portion and that supplies electric power to the power transmitting portion; and a supply cable that is connected to the first coil unit and that supplies electric power from a power supply to the first coil unit. The first coil unit includes a first coil connected to the supply cable and a second coil connected to the first coil, and the first coil is arranged around, the power transmitting portion, converts unbalanced current, supplied from the power supply, to balanced current and supplies the balanced current to the second coil.

Abstract: A power supply device supplies electric power to a power receiving device including a power receiving unit in a non-contact manner. The power supply device includes a power source device that generates electric power with a predetermined frequency; a power transmitting unit that receives the electric power from the power source device, and that resonates with the power receiving unit through an electromagnetic field, thereby transmitting the electric power to the power receiving unit in the non-contact manner; a detection device that detects reflected electric power to the power source device; a communication device that receives information regarding a power receiving situation in the power receiving device; and a control device that controls electric power transmission from the power transmitting unit based on the information regarding the power receiving situation and the reflected electric power.

Abstract: A power transmitting device that contactlessly transmits electric power to a power receiving device having a secondary coil provided at a vehicle, and a power transfer system, are provided. The power transmitting device includes primary coils, a selecting unit and a control unit. The primary coils are arranged at an interval in an arrangement direction. The selecting unit selects one primary coil to which electric power is supplied from a power supply. The control unit controls the selecting unit by supplying the selected primary coil with a second electric power smaller than a first electric power, selecting a power transmitting coil from among the primary coils on the basis of at least one of a power transmitting situation of the selected primary coil and a power receiving situation of the secondary coil, and supplying the power transmitting coil with the first electric power.

Abstract: A power supply system includes: a power transmitting device that includes a power transmitting unit; and a vehicle that includes a power receiving unit, and contactlessly transfers electric power between the power transmitting device and the vehicle through electromagnetic resonance. When there is an abnormality that a power receiving mechanism of the vehicle cannot receive electric power, a vehicle ECU causes the power transmitting device to stop power transmission, opens a relay and further discharges remaining electric power by the discharging unit.

Abstract: In control over a contactless power supply system that includes: a power transmitting device that includes a power transmitting unit, a power supply unit supplying electric power to the power transmitting unit and a matching transformer coupled between the power supply unit and the power transmitting unit and including a variable inductor and a variable capacitor that adjust an impedance of the power transmitting device; and a power receiving device that includes a power receiving unit carrying out electromagnetic resonance with the power transmitting unit to contactlessly receive electric power from the power transmitting unit, before starting transfer of electric power from the power transmitting device to the power receiving device, the variable inductor is adjusted on the basis of an impedance of the power receiving device to thereby bring the impedance of the power transmitting device close to the impedance of the power receiving device.

Abstract: A non-contact power receiving apparatus includes a power reception unit for receiving electric power from a power transmitting apparatus outside of a vehicle in a non-contact manner, and a control device for controlling the electric power transmission from the power transmitting apparatus. The control device controls the electric power transmission based on a monitoring result obtained by monitoring the surroundings of the vehicle, and a door state detection result obtained by detecting whether or not a door of the vehicle is open. The control device causes, if the door state detection result indicates that the door is open, the power transmitting apparatus to reduce the power of the electric power transmission, and controls the electric power transmission without using the monitoring result.

Abstract: In a noncontact electric power feeding system using a resonance method, electrical equipment installed within a coil case is configured to include an electric power receiving antenna and a rectifier in an integrated manner. The electrical equipment is driven by receiving electric power from an electromagnetic field generated by electromagnetic resonance, without power supply from the outside of the coil case.

Abstract: A spark plug comprising: a center electrode extending along an axis; an insulator provided about the outer peripheral surface of the center electrode; a metal shell provided about the outer peripheral surface of the insulator; a noble metal tip provided at the leading end portion of the center electrode; one end of the ground electrode fixed at the leading end of the metal shell, and the other end of the ground electrode forming a gap with the leading end of the noble metal tip; a stopper preventing the noble metal tip from moving relative to the central electrode; a molten portion formed by irradiating laser or electron beam; and a closed space formed between the basal portion of the noble metal tip and the center electrode. The molten portion welds the center electrode and a part of the basal portion of the noble metal tip.

Abstract: A contactless power feeding system includes a power transmitting device including a power transmitting unit and a power receiving device including a power receiving unit, and allows the power transmitting and receiving units to electromagnetically resonate with each other to supply electric power contactlessly. The power receiving device includes a power storage device for storing therein the electric power received by the power receiving unit, and a light emitting unit receiving the electric power received by the power receiving unit and emitting light, and varying in brightness according to the electric power received. The received electric power varies according to a positional displacement between the power transmitting unit and the power receiving unit. The user can recognize the positional displacement from information relevant to the brightness of the light emitting unit.