Safety systems for wireless energy transfer in vehicle applications
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01F-027/42
H02J-017/00
H02J-007/00
H02J-007/02
B60L-011/18
H03H-007/40
H02J-005/00
출원번호
US-0276297
(2011-10-18)
등록번호
US-8946938
(2015-02-03)
발명자
/ 주소
Kesler, Morris P.
Kulikowski, Konrad
Lou, Herbert Toby
Hall, Katherine L.
Fiorello, Ron
Verghese, Simon
Kurs, Andre B.
Karalis, Aristeidis
Campanella, Andrew J.
출원인 / 주소
WiTricity Corporation
대리인 / 주소
Fish & Richardson P.C.
인용정보
피인용 횟수 :
25인용 특허 :
209
초록▼
A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver including a load configured to power the drive system of a vehicle using electrical power, a second electromagnetic resonator adapted to be housed upon the vehicle and
A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver including a load configured to power the drive system of a vehicle using electrical power, a second electromagnetic resonator adapted to be housed upon the vehicle and configured to be coupled to the load, a safety system for to provide protection with respect to an object that may become hot during operation of the first electromagnetic resonator. The safety system including a detection subsystem configured to detect the presence of the object in substantial proximity to at least one of the resonators, and a notification subsystem operatively coupled to the detection subsystem and configured to provide an indication of the object, wherein the second resonator is configured to be wirelessly coupled to the first resonator to provide resonant, non-radiative wireless power to the second resonator from the first resonator.
대표청구항▼
1. A vehicle powering wireless receiver, comprising: a load coupled to a drive system of the vehicle;an electromagnetic resonator coupled to the load and configured for attachment to the vehicle, wherein the electromagnetic resonator is configured to receive power from a resonant, non-radiative wire
1. A vehicle powering wireless receiver, comprising: a load coupled to a drive system of the vehicle;an electromagnetic resonator coupled to the load and configured for attachment to the vehicle, wherein the electromagnetic resonator is configured to receive power from a resonant, non-radiative wireless power source and to deliver power to the load; anda safety system configured to detect metal objects positioned in proximity to at least one of the power source and the electromagnetic resonator, the safety system comprising: a detection subsystem comprising one or more inductive loops formed of conductive material; anda notification subsystem coupled to the detection subsystem and configured to generate a notification signal when a metal object is detected by the detection subsystem. 2. The wireless receiver of claim 1, wherein the electromagnetic resonator is configured to be disposed on an under-carriage of the vehicle. 3. The wireless receiver of claim 1, wherein the vehicle is an electric vehicle. 4. The wireless receiver of claim 1, wherein the vehicle is a hybrid vehicle. 5. The wireless receiver of claim 1, wherein the safety system is configured to detect metal objects positioned under the vehicle. 6. A power source for wirelessly providing power to a power receiver coupled to a vehicle, the power source comprising: a power supply; andan electromagnetic resonator coupled to the power supply and enclosed in a housing, wherein the electromagnetic resonator is configured to provide resonant, non-radiative wireless power transfer to the wireless power receiver; anda safety system configured to detect metal objects positioned in proximity to at least one of the electromagnetic resonator and the power receiver, the safety system comprising: a detection subsystem comprising one or more inductive loops formed of conductive material; anda notification subsystem coupled to the detection subsystem and configured to generate a notification signal when a metal object is detected by the detection subsystem. 7. The power source of claim 6, wherein the power receiver is positioned on an under-carriage of the vehicle. 8. The power source of claim 6, wherein the vehicle is an electric vehicle. 9. The power source of claim 6, wherein the vehicle is a hybrid vehicle. 10. The power source of claim 6, wherein the safety system is configured to detect metal objects positioned under the vehicle. 11. A vehicle wireless power system, comprising: a power supply;a first electromagnetic resonator coupled to the power supply;a load coupled to a drive system of the vehicle; anda second electromagnetic resonator coupled to the load and configured for attachment to the vehicle, wherein the second electromagnetic resonator is configured to wirelessly receive resonant, non-radiative power from the first electromagnetic resonator and to deliver power to the load; anda safety system configured to detect metal objects positioned in proximity to at least one of the first and second electromagnetic resonators, the safety system comprising: a detection subsystem comprising one or more inductive loops formed of conductive material; anda notification subsystem coupled to the detection subsystem and configured to generate a notification signal when a metal object is detected by the detection subsystem. 12. The system of claim 11, wherein the second electromagnetic resonator is configured to be disposed on an under-carriage of the vehicle. 13. The system of claim 11, wherein the vehicle is an electric vehicle. 14. The system of claim 11, wherein the vehicle is a hybrid vehicle. 15. The system of claim 11, wherein the safety system is configured to detect metal objects positioned under the vehicle. 16. The wireless receiver of claim 1, wherein the one or more inductive loops form a magnetometer. 17. The wireless receiver of claim 1, wherein the detection subsystem is configured to detect metal objects within a range of distances that is less than a spacing between the detection subsystem and the wireless power source. 18. The wireless receiver of claim 1, wherein the detection subsystem comprises a second sensor configured to detect objects positioned in positioned in proximity to at least one of the power source and the electromagnetic resonator. 19. The wireless receiver of claim 18, wherein the notification subsystem is configured to generate the notification signal only when a metal object is detected by the one or more inductive loops and when the metal object is detected by the second sensor. 20. The wireless receiver of claim 18, wherein the second sensor comprises a pressure sensor. 21. The wireless receiver of claim 18, wherein the second sensor comprises a thermally activated material. 22. The wireless receiver of claim 18, wherein the second sensor comprises an infrared sensor. 23. The power source of claim 6, wherein the one or more inductive loops form a magnetometer. 24. The power source of claim 6, wherein the detection subsystem is configured to detect metal objects within a range of distances that is less than a spacing between the detection subsystem and the power receiver. 25. The power source of claim 6, wherein the detection subsystem comprises a second sensor configured to detect objects positioned in positioned in proximity to at least one of the electromagnetic resonator and the power receiver. 26. The power source of claim 25, wherein the notification subsystem is configured to generate the notification signal only when a metal object is detected by the one or more inductive loops and when the metal object is detected by the second sensor. 27. The power source of claim 25, wherein the second sensor comprises a pressure sensor. 28. The power source of claim 25, wherein the second sensor comprises a thermally activated material. 29. The power source of claim 25, wherein the second sensor comprises an infrared sensor. 30. The system of claim 11, wherein the one or more inductive loops form a magnetometer. 31. The system of claim 11, wherein the detection subsystem is configured to detect metal objects within a range of distances that is less than a spacing between the first and second electromagnetic resonators. 32. The system of claim 11, wherein the detection subsystem comprises a second sensor configured to detect objects positioned in positioned in proximity to at least one of the first and second electromagnetic resonators. 33. The system of claim 32, wherein the notification subsystem is configured to generate the notification signal only when a metal object is detected by the one or more inductive loops and when the metal object is detected by the second sensor. 34. The system of claim 32, wherein the second sensor comprises a pressure sensor. 35. The system of claim 32, wherein the second sensor comprises a thermally activated material. 36. The system of claim 32, wherein the second sensor comprises an infrared sensor.
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