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US 12,671,274 B2Granted
Alignment positioning verification and indicator for wireless power transfer
AssigneeInductEV Inc.
InventorsSamual J. Gallagher, Edward J. Gander
Life of this patent
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AssigneeInductEV Inc.
InventorsSamual J. Gallagher, Edward J. Gander
Estimating the term…
A position offset between a primary coil and a secondary coil of an inductive power transfer pair is determined using a region classifier model and an absolute position model of an operational charging region between the primary coil and the secondary coil. During operation, radio signal information including magnitudes and phase differences is collected from respective radio receivers of a ground transceiver assembly and a vehicle transceiver assembly. The radio signal information and the region classifier model are used to determine whether the vehicle has entered or departed the operational charging region, and the radio signal information and absolute position model are used to determine absolute or relative offset positions of boresights of the primary coil and the secondary coil. A display provides an indication of the absolute or relative offset positions between the boresights of the primary coil and the secondary coil.
A method for determining a position offset between a primary coil and a secondary coil of an inductive power transfer pair disposed in a vehicle transceiver assembly (VTA) and a ground transceiver assembly (GTA), comprising:
A system that determines a position offset between a primary coil and a secondary coil of an inductive power transfer pair disposed in a vehicle transceiver assembly (VTA) including a wireless charging controller that controls one of the primary coil or the secondary coil and a ground transceiver assembly (GTA) having a wireless charging controller that controls another of the primary coil or the secondary coil, the wireless charging controllers of the VTA and GTA establishing a duplex communications channel therebetween and the primary coil and secondary coil comprising respective antennas, the system comprising:
A ground transceiver assembly (GTA) comprising a first coil adapted for wireless power transfer with a second coil of a vehicle comprising a vehicle transfer assembly (VTA), the first coil including a first inductive receiver antenna and a second inductive receiver antenna arranged in a direction of travel of the vehicle or across a direction of travel of the vehicle and adapted to establish a duplex communications channel with the VTA, an inductive transmit/receive antenna centered between the first and second inductive receiver antennas within the GTA and adapted to conduct wireless power transfer with the second coil, a third inductive receiver antenna and a fourth inductive receiver antenna arranged perpendicular to the first and second inductive receiver antennas on opposing sides of the inductive transmit/receive antenna and adapted to establish a second duplex communication channel with the VTA, and a software-defined radio that selectively creates samples from chosen pairs of antennas to selectively determine a direction of approach of the vehicle to the GTA and a left/right distance on either side of the axis of travel of the vehicle.
A vehicle transceiver assembly (VTA) of a vehicle, the VTA comprising a first coil adapted for wireless power transfer with a second coil of a ground transfer assembly (GTA), the first coil including a first inductive receiver antenna and a second inductive receiver antenna arranged in a direction of travel of the vehicle or across a direction of travel of the vehicle and adapted to establish a duplex communications channel with third and fourth receiver antennas of the GTA, an inductive transmit/receive antenna centered between the first and second inductive receiver antennas within the VTA and adapted to conduct wireless power transfer with the second coil, wherein the first and second receiver antennas of the VTA are situated to be orthogonal to the third and fourth receiver antennas of the GTA, a fifth inductive receiver antenna and a sixth inductive receiver antenna arranged perpendicular to the first and second inductive receiver antennas on opposing sides of the inductive transmit/receive antenna and adapted to establish a second duplex communication channel with the GTA, and a software-defined radio that selectively creates samples from chosen pairs of antennas to selectively determine a direction of approach of the vehicle to the GTA and a left/right distance on either side of the axis of travel of the vehicle.
A vehicle transceiver assembly (VTA) of a vehicle, the VTA comprising a first coil adapted for wireless power transfer with a second coil of a ground transfer assembly (GTA), the first coil including four inductive receiver antennas deployed at four respective corners of the VTA and adapted to establish at least one duplex communications channel with receiver antennas of the GTA, an inductive transmit/receive antenna centrally located within the VTA and adapted to conduct wireless power transfer with the second coil, and a software-defined radio that selectively creates samples from chosen pairs of antennas to selectively determine a direction of approach of the vehicle to the GTA and a left/right distance on either side of the axis of travel of the vehicle.
Dependencies are inferred from the claim text.