An apparatus includes a first charging coil with one or more conductors arranged in a first winding pattern, a second charging coil with one or more conductors arranged in a second winding pattern, and a ferrite structure with a main section with a top side, a first side section and a second side section. A portion of the top side of the main section is adjacent to a portion of the bottom side of the first side section and the second side section. A portion of the first and second charging coils are positioned adjacent to the top side of the main section interior in between the first and second side sections. A portion of the first charging coil is adjacent to the bottom of the first side section. A portion of the second charging coil is adjacent to the bottom of the second side section.

Disclosed are alignment methods and apparatuses for power transmission/reception coils in an electric vehicle wireless power transfer system. An alignment method may comprise moving a primary coil such that a reference center point of the primary coil sequentially passes through a plurality of measurement points located on the primary coil or located outside the primary coil; measuring physical quantities induced in the primary coil by a power or a magnetic field of a secondary coil magnetically coupled with the primary coil at the reference center point and the plurality of measurement points; and calculating a relative position of the primary coil with respect to the secondary coil based on the measured physical quantities.

Methods and apparatus are discloses for position a vehicle. In one aspect, an apparatus for positioning a vehicle is provided. The apparatus comprises a plurality of receive, each configured to generate a respective voltage signal from a wireless magnetic field generated by a field generator. The apparatus further comprises a processor configured to determine a first set of data based on the respective voltage signals generated by the plurality of receive coils, and reduce the first set of data to a second set of data that is substantially constant regardless of relative rotation between the plurality of receive coils and the field generator. The apparatus is further configured to determine a plurality of candidate positions based upon the second set of data, which are used to determine a position and an orientation with respect to the field generator based on the first set of data.

The invention relates to a charging/discharging station (2) for charging or discharging an at least partly battery-operated vehicle (14) via an inductively coupled pair of coils. The charging/discharging station (2) comprises in particular a computer device (12), in which spatial coordinates of parking areas (4) are stored and which has means to navigate a vehicle (14) to the parking area (4) by means of communication units (8, 16) by using image data of the vehicle (14) recorded by means of a camera device (10) and by using physical coordinates of the parking areas (4). The invention further relates to a method for operating such a loading/discharging station (2).

A power transmission coil unit includes a power transmission coil formed such that a lead wire is spirally wound around a coil axis extending in a first direction. Sensor modules each include a sensor having a detection range of a first angle that is a detection angle spanning in an in-plane direction of a first plane orthogonal to the first direction. The sensors are disposed in a surrounding region that is, as viewed in the first direction, a region surrounding the power transmission coil unit along an outer edge of the power transmission coil unit. The sensors are disposed such that a second angle or an angle between a straight line overlapping the detection range, among straight lines constituting the outer edge of the power transmission coil unit, and a center axis of the detection range is ½ or less of the first angle.

A power transmission coil unit includes a power transmission coil formed such that a lead wire is spirally wound around a coil axis extending in a first direction. Sensor modules each include a sensor having a detection range of a first angle that is a detection angle spanning in an in-plane direction of a first plane orthogonal to the first direction. The sensors are disposed in a surrounding region that is, as viewed in the first direction, a region surrounding the power transmission coil unit along an outer edge of the power transmission coil unit. The sensors are disposed such that a second angle or an angle between a straight line overlapping the detection range, among straight lines constituting the outer edge of the power transmission coil unit, and a center axis of the detection range is ½ or less of the first angle.

A power supply control device according to the present disclosure includes a processor that generates control information for preferentially supplying electric power to a wide traveling lane when information on a disaster is acquired in a plurality of traveling lanes in which a vehicle travels in the same direction, each of the traveling lanes having a different width.

The present invention relates to a method for repositioning a power receiving coil (122) of a vehicle (1) relative a power emitting coil (222) of a wireless charging system (200, 200′). The method comprising the steps of: detecting (S1) a positioning of the vehicle at a charging location (50) in which the power receiving coil detects reception of electromagnetic radiation emitted from the power emitting coil, determining (S2) whether or not the efficiency of the electromagnetic radiation reception of the power receiving coil achieves a pre-set criteria, repositioning (S3) the power receiving coil relative the power emitting coil in at least the vertical direction (z) in response to determining that the efficiency of the electromagnetic radiation reception does not fulfil the pre-set criteria.

The present invention relates to a method for repositioning a power receiving coil (122) of a vehicle (1) relative a power emitting coil (222) of a wireless charging system (200, 200′). The method comprising the steps of: detecting (S1) a positioning of the vehicle at a charging location (50) in which the power receiving coil detects reception of electromagnetic radiation emitted from the power emitting coil, determining (S2) whether or not the efficiency of the electromagnetic radiation reception of the power receiving coil achieves a pre-set criteria, repositioning (S3) the power receiving coil relative the power emitting coil in at least the vertical direction (z) in response to determining that the efficiency of the electromagnetic radiation reception does not fulfil the pre-set criteria.

Provided is a position detection system capable of detecting a position with high accuracy when position detection is performed using an antenna on a transmission side and an antenna on a reception side. In the position detection system, at least one of a transmission antenna and a reception antenna is a multi-axis antenna including a first winding portion formed by winding a first conducting wire and a second winding portion formed by winding a second conducting wire. An axial direction of a first winding axis of the first winding portion and an axial direction of a second winding axis of the second winding portion are two directions different from each other. The first winding portion and the second winding portion are electrically connected to each other.