Wireless power transmission method and system for preventing frequency interference
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJong-Gyu Kim, Kyong-Ho Shon, Nam-Woong Hur, Sin-Gu Kim
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Abstract
A wireless power transmission method and system for prevention frequency interference is provided to prevent frequency interference and collision between a wireless power transmitter and other devices which use a frequency adjacent to frequency band of the power signal transmitting from the wireless power transmitter. The wireless power transmission method includes outputting a using signal upon use of a wireless device and operating the wireless power transmitter based on whether the using signal is transmitted.
Claims17
A wireless power transmission method for preventing frequency interference in a wireless power system having a wireless power transmitter, a wireless device, and a controller, comprising:
- transmitting, by the wireless device, a using signal to the controller temporarily indicating that the wireless device is in use when the use of the wireless device starts;
- receiving, at the controller, the using signal transmitted by the wireless device;
- controlling, by the controller, the wireless power transmitter to be stopped when the using signal is received at the controller;
- generating, by the wireless device, a using complete signal indicating that the wireless device is no longer in use when the use of the wireless decide ends;
- and
- controlling, by the controller, the wireless power transmitter to be restarted when the using complete signal is received at the controller, where
- the wireless power transmitter generates and transmits a power signal for transmitting power by radio, and
- the controlling of the wireless power transmitter to be stopped includes stopping, by the controller, the operation of the wireless power transmitter during a predetermined waiting period when the controller receives the using signal by transmitting a using restriction signal and then transmitting a using restriction ending signal after the predetermined waiting period.
A wireless power transmission system for preventing frequency interference, comprising:
- a wireless power transmitter configured to generate and transmit a power signal for transmitting power by radio;
- a wireless device configured to transmit a using signal to a controller temporarily indicating that the wireless device is in use when the use of the wireless device starts and generate a using complete signal indicating that the wireless device is no longer in use when the use of the wireless device ends;
- and
- the controller configured to receive the using signal transmitted by the wireless device, control the wireless power transmitter to be stopped when the using signal is received at the controller, and control the wireless power transmitter to be restarted when the using complete signal is received at the controller,
- wherein the controller is further configured to stop the operation of the wireless power transmitter during a predetermined waiting period when the controller receives the using signal by transmitting a using restriction signal and then transmitting a using restriction ending signal after the predetermined waiting period.
A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
- program instructions that control a wireless device to transmit a using signal to the controller temporarily indicating that the wireless device is in use when the use of the wireless device starts;
- program instructions that receive the using signal transmitted by the wireless device;
- program instructions that control a wireless power transmitter to be stopped when the using signal output by the wireless device is received;
- program instructions that control the wireless device to generate a using complete signal indicating that the wireless device is no longer in use when the use of the wireless device ends;
- and
- program instructions that control the wireless power transmitter to be restarted when the using complete signal is received at the controller, wherein
- the wireless power transmitter generated and transmits a power signal for transmitting power by radio, and
- wherein the control of the wireless power transmitter to be stopped includes stopping the operation of the wireless power transmitter during a predetermined waiting period when the controller receives the using signal by transmitting a using restriction signal and then transmitting a using restriction ending signal after the predetermined waiting period.
Dependencies are inferred from the claim text.