Patent ID: 11916409
Assignee: TOYODA GOSEI CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 5:
6. A power transmitting device that transmits power to a power receiving device, the power transmitting device comprising:
a power transmission unit configured to transmit power to the power receiving device through contactless power supply;
processing circuitry configured to switch a power transmission mode of the power transmission unit between a normal output mode and a limit mode in which a transmitted power is more limited than in the normal output mode; and
a transmission-side communication unit configured to execute communication with the power receiving device,
wherein the power receiving device includes a reception-side power storage unit that corresponds to a power source, and
wherein the processing circuitry is configured to:
determine whether the power receiving device is a registered power receiving device based on information related to the power receiving device obtained from the transmission-side communication unit, the registered power receiving device having been registered in advance;
determine whether the registered power receiving device is located inside a power transmission range of the power transmission unit;
set the power transmission mode to the normal output mode when determining that the registered power receiving device is located inside the power transmission range;
set the power transmission mode to the limit mode when determining that the registered power receiving device is not located inside the power transmission range and that a charge rate of the reception-side power storage unit of a power receiving device other than the registered power receiving device is greater than or equal to a predetermined value, the power receiving device other than the registered power receiving device being located inside the power transmission range; and
set the power transmission mode to the normal output mode when determining that the registered power receiving device is not located inside the power transmission range and that the charge rate of the reception-side power storage unit of the power receiving device other than the registered power receiving device is less than the predetermined value, the power receiving device other than the registered power receiving device being located inside the power transmission range.