Wireless charging and powering of electronic sensors in a vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-001/00
B60R-016/03
H02J-007/02
H02J-005/00
출원번호
US-0585324
(2014-12-30)
등록번호
US-10124754
(2018-11-13)
발명자
/ 주소
Leabman, Michael A.
Brewer, Gregory Scott
출원인 / 주소
Energous Corporation
대리인 / 주소
Morgan, Lewis & Bockius LLP
인용정보
피인용 횟수 :
0인용 특허 :
199
초록▼
Configurations and methods of wireless power transmission for charging or powering one or more electronic sensors or devices within a vehicle are disclosed. Wireless power transmission for powering or charging one or more electronic sensors or devices within a vehicle may include a transmitter capab
Configurations and methods of wireless power transmission for charging or powering one or more electronic sensors or devices within a vehicle are disclosed. Wireless power transmission for powering or charging one or more electronic sensors or devices within a vehicle may include a transmitter capable of emitting RF waves for the generation of pockets of energy; and one or more electronic sensors or electronic devices operatively coupled or otherwise embedded with one or more receivers that may utilize these pockets of energy for charging or powering. Such sensors or electronic devices may range from tire pressure gauges, security alarm sensors, rear window defrosters to audio speakers.
대표청구항▼
1. A system for transmitting and receiving wireless power, the system comprising: a vehicle;a plurality of sensors coupled to the vehicle;a wireless power transmitter coupled to an exterior of the vehicle, wherein: the wireless power transmitter includes a housing that houses an integrated circuit a
1. A system for transmitting and receiving wireless power, the system comprising: a vehicle;a plurality of sensors coupled to the vehicle;a wireless power transmitter coupled to an exterior of the vehicle, wherein: the wireless power transmitter includes a housing that houses an integrated circuit and antenna elements of the wireless power transmitter;the vehicle is configured to power the wireless power transmitter, andthe wireless power transmitter is configured to: transmit, via at least some of the antenna elements of the wireless power transmitter, a plurality of radio frequency (RF) wireless power transmission waves towards each of the plurality of sensors; andcontrol, via the integrated circuit, transmission of the plurality of RF wireless power transmission waves through phase and gain adjustments of each of the plurality of RF wireless power transmission waves relative to at least one other RF wireless power transmission wave of the plurality of RF wireless power transmission waves to cause formation of distinct constructive interference patterns near each of the plurality of sensors, wherein (i) some of the antenna elements are configured to transmit a first set of the plurality of RF wireless power transmission waves at a first frequency to form one of the distinct constructive interference patterns near a first respective sensor of the plurality of sensors, and (ii) some of the antenna elements are configured to transmit a second set of the plurality of RF wireless power transmission waves at a second frequency, different from the first frequency, to form one of the distinct constructive interference patterns near a second respective sensor of the plurality of sensors; anda plurality of wireless power receivers, each wireless power receiver being coupled to the exterior of the vehicle and one of the plurality of sensors, wherein each of the plurality of wireless power receivers is configured to: receive a respective set of RF wireless power transmission waves from the plurality of RF wireless power transmission waves transmitted by the wireless power transmitter, each RF wireless power transmission wave of the respective set converging with another RF wireless power transmission wave of the respective set to form one of the distinct constructive interference patterns near a respective sensor of the plurality of sensors, andconvert, via a rectifier and power converter of the wireless power receiver, the respective set of RF wireless power transmission waves into usable energy for powering one of the plurality of sensors. 2. The system of claim 1, wherein: the vehicle comprises a bottom portion,the wireless power transmitter is located on the bottom portion, andthe plurality of sensors includes a tire pressure sensor and a brake sensor. 3. The system of claim 2, wherein the wireless power transmitter is a far-field wireless power transmitter. 4. The system of claim 1, wherein: the exterior of the vehicle comprises an engine compartment,the transmitter is coupled to the engine compartment, andthe plurality of sensors includes engine sensors located within the engine compartment. 5. The system of claim 1, wherein the antenna elements comprise at least one of a flat antenna element, a patch antenna element, and a dipole antenna element, wherein the antenna elements are dimensioned with a height from about ⅛ inch to about 6 inches and a width from about ⅛ inch to about 6 inches. 6. The system of claim 1, wherein the antenna elements operate in a frequency band selected from a group consisting of a 900 MHz band, a 2.5 GHz band, and a 5.8 GHz band. 7. The system of claim 1, wherein the antenna elements operate in a plurality of independent frequencies which allow a multichannel pocket definition via at least one of a single antenna array configuration, a pair antenna array configuration, and a quad antenna array configuration. 8. The system of claim 1, wherein the antenna elements are at least one of vertically polarized, horizontally polarized, circularly polarized, left hand polarized, and right hand polarized, or a combination of polarizations. 9. The system of claim 1, wherein the distinct constructive interference patterns near each of the plurality of sensors are formed at substantially the same time. 10. A method of wirelessly delivering power, the method comprising: at a wireless power transmitter mounted to an exterior of a vehicle, the wireless power transmitter including a housing that houses an integrated circuit and antenna elements of the wireless power transmitter: receiving electrical current from a power source of the vehicle that is used by the wireless power transmitter to generate a plurality of radio frequency (RF) wireless power transmission waves;transmitting, via at least some of the antenna elements of the wireless power transmitter, a plurality of wireless RF power transmission waves towards each of plurality of sensors coupled to the vehicle; andcontrolling, via the integrated circuit, transmission of the plurality of RF wireless power transmission waves through phase and gain adjustments of each of the plurality of RF wireless power transmission waves relative to at least one other RF wireless power transmission wave of the plurality of RF wireless power transmission waves to cause formation of distinct constructive interference patterns near each of the plurality of sensors,wherein: (i) some of the antenna elements are configured to transmit a first set of the plurality of RF wireless power transmission waves at a first frequency to form one of the distinct constructive interference patterns near a first respective sensor of the plurality of sensors, and (ii) some of the antenna elements are configured to transmit a second set of the plurality of RF wireless power transmission waves at a second frequency, different from the first frequency, to form one of the distinct constructive interference patterns near a second respective sensor of the plurality of sensors; andeach of a plurality of wireless power receivers: receives a respective set of RF wireless power transmission waves from the plurality of RF wireless power transmission waves transmitted by the wireless power transmitter, each RF wireless power transmission wave of the respective set converging with another RF wireless power transmission wave of the respective set to form one of the distinct constructive interference patterns near a respective sensor of the plurality of sensors, andconverts, via a rectifier and power converter of the wireless power receiver, the respective set of RF wireless power transmission waves into usable energy for powering one of the plurality of sensors, where each wireless power receiver is coupled to the exterior of the vehicle and one of the plurality of sensors. 11. The method of claim 10, wherein: the vehicle comprises a bottom portion;the wireless power transmitter is located on the bottom portion; andthe plurality of sensors includes a tire pressure sensor and a brake sensor. 12. The method of claim 11, wherein the wireless power transmitter is a far-field wireless power transmitter. 13. The method of claim 12, wherein the antenna elements operate in a plurality of independent frequencies which allow a multichannel pocket definition via a single antenna array configuration. 14. The method of claim 12, wherein the antenna elements operate in a plurality of independent frequencies which allow a multichannel pocket definition via a pair antenna array configuration. 15. The method of claim 12, wherein the antenna elements operate in a plurality of independent frequencies which allow a multichannel pocket definition via a quad antenna array configuration. 16. The method of claim 10, wherein: the exterior of the vehicle comprises an engine compartment;the transmitter is coupled to the engine compartment; andthe plurality of sensors includes engine sensors located within the engine compartment. 17. The method of claim 10, wherein the distinct constructive interference patterns near each of the plurality of sensors are formed at substantially the same time.
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