Wireless power supply system, program, control method for wireless power supply system, power transmitter device, and power receiver device

The wireless power supply system with multiple transmitter antennas and a correction value calculation unit addresses communication range changes by adjusting signal intensity, reducing unintended power transmission and leakage magnetic fields, enhancing power transfer efficiency.

WO2026115874A1PCT designated stage Publication Date: 2026-06-04DENSO CORP +2
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Patent Information

Authority / Receiving Office
WO ยท WO
Patent Type
Applications
Current Assignee / Owner
DENSO CORP
Filing Date
2025-09-16
Publication Date
2026-06-04

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Abstract

A power receiver device (100) mounted on a vehicle includes a power receiver side communication coil (170) and a power receiver side control unit 230) that supplies a power supply request signal to the power receiver side communication coil (170).ใ€€ A power transmitter device (20) includes a power transmitter side communication coil (40) and a power transmitter side control unit (70) that controls energization of a power transmitter coil (22) based on a power supply request signal received by the power transmitter side communication coil (40).ใ€€ A power transmitter side control unit (70) calculates a correction value for an intensity value of the power supply request signal and transmits the calculated correction value to the power receiver side control unit (230).ใ€€ The power receiver side control unit (230) corrects the intensity value of the power supply request signal to be supplied to the power receiver side communication coil (170) based on the received correction value.
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