公开(公告)号：US12054057B2

公开(公告)日：2024-08-06

申请号：US17120173

申请日：2020-12-13

Applicant: Mojo Mobility, Inc.

Inventor： Afshin Partovi

IPC: B60L53/124 ,  B60L53/122 ,  B60L53/126 ,  B60L53/36 ,  B60L53/37 ,  B60L53/38 ,  B60L53/62 ,  B60L53/66 ,  B60L58/12 ,  G06Q50/06 ,  H02J7/00 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90 ,  H04B5/79

CPC classification number: B60L53/124 ,  B60L53/122 ,  B60L53/126 ,  B60L53/36 ,  B60L53/37 ,  B60L53/38 ,  B60L53/62 ,  B60L53/665 ,  B60L58/12 ,  G06Q50/06 ,  H02J7/00032 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90 ,  B60L2200/12 ,  B60L2200/18 ,  B60L2200/26 ,  B60L2270/147 ,  H02J7/00034 ,  H02J7/0029 ,  H02J7/00304 ,  H02J7/00308 ,  H02J7/00309 ,  H04B5/79

Abstract: In accordance with various embodiments, described herein are systems and/or methods for enabling efficient wireless power transfer and charging of devices and/or batteries, including in some embodiments freedom of placement of the devices and/or batteries in one or multiple (e.g. one, two or three) dimensions, and/or improved features such as ease of use and compatibility. Exemplary applications include beam inductive or magnetic charging and power for use in, e.g., mobile, electronic, electric, lighting or other devices, machines, batteries, power tools, kitchen, military, medical, industrial tools or systems, robots, trains, buses, trucks and/or vehicles, and other environments.

公开(公告)号：US20240258841A1

公开(公告)日：2024-08-01

申请号：US18544692

申请日：2023-12-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiya HASHIMOTO ,  Masato MAEMURA ,  Shogo TSUGE ,  Ryosuke IKEMURA

IPC: H02J50/80 ,  B60L53/124 ,  H02J50/60

CPC classification number: H02J50/80 ,  B60L53/124 ,  H02J50/60

Abstract: A control device for power feeding during traveling includes a processor. Further, when a living object or a metal foreign object is detected around a primary coil of a power transfer device that transfers power to a power reception device of a vehicle that is traveling, the processor deletes identification information on the primary coil registered in an identification information list of the primary coil, and when the living object or the metal foreign object is not detected, the processor performs compatibility check and service authentication between the power reception device of the vehicle and the power transfer device.

公开(公告)号：US20240258836A1

公开(公告)日：2024-08-01

申请号：US18634410

申请日：2024-04-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： TAKAHIRO SHICHINO

IPC: H02J50/60 ,  B60L50/60 ,  B60L53/124 ,  H02J7/00 ,  H02J50/12 ,  H02J50/80

CPC classification number: H02J50/60 ,  B60L50/60 ,  B60L53/124 ,  H02J7/0048 ,  H02J7/0063 ,  H02J50/12 ,  H02J50/80

Abstract: A power receiving apparatus wirelessly receives power from a power transmission apparatus that performs first detection processing of detecting a foreign object based on values of voltages or currents at at least two time points in a predetermined period during which power transmission is restricted, transmits, to the power transmission apparatus, data indicating received power that is to be used in second detection processing of detecting a foreign object based on power loss in accordance with a result of the first detection processing, changes an output voltage to be output to a load, and, in a case where the output voltage is changed after the data is transmitted, controls the data not to be used in the second detection processing.

公开(公告)号：US20240166062A1

公开(公告)日：2024-05-23

申请号：US17992265

申请日：2022-11-22

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Rakan Chabaan

IPC: B60L53/124 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

CPC classification number: B60L53/124 ,  H02J50/12 ,  H02J50/402 ,  H02J50/60

Abstract: A combined metal object detection (MOD) and live object detection (LOD) system for a wireless power transfer (WPT) system in an electric vehicle (EV) charging application, and methods for use, are provided. The combined MOD and LOD system may comprise a transmitting pad, a detection coil pad coupled to the transmitting pad, and a receiving pad positioned adjacent to the transmitting pad. The transmitting pad, the detection coil pad, and the receiving pad may be configured such that, when a living object or a metal object appears between the transmitting pad and the receiving pad, an inductance or capacitance value change of the detection coil pad occurs.

公开(公告)号：US11897348B2

公开(公告)日：2024-02-13

申请号：US17365257

申请日：2021-07-01

Applicant: TDK CORPORATION

Inventor： Akira Gotani

IPC: B60L53/124 ,  B60L53/38 ,  H02J50/60 ,  H02J50/90 ,  H02J13/00 ,  H02J50/40

CPC classification number: B60L53/124 ,  B60L53/38 ,  H02J50/60 ,  H02J50/90 ,  H02J13/00022 ,  H02J50/402

Abstract: A power transmission device that wirelessly transmits power to a vehicle, the power transmission device including an information emitter that, in a case in which the position of the vehicle acquired by the information acquirer is located in a power transmission range of the power transmission coil and, also, the instruction receiver receives the instruction about power transmission, emits a first type of information that indicates a presence of the foreign object when the detector detects the foreign object, and in a case in which the instruction receiver does not receive the instruction about power transmission even though the position of the vehicle acquired by the position information acquirer is located in the power transmission range of the power transmission coil, does not emit the information that indicates the presence of the foreign object.

公开(公告)号：US20230331103A1

公开(公告)日：2023-10-19

申请号：US18338890

申请日：2023-06-21

Applicant: General Electric Company

Inventor： Viswanathan Kanakasabai ,  Deepak Aravind ,  Suma Memana Narayana Bhat ,  Adnan Kutubuddin Bohori

IPC: B60L53/124 ,  H02J50/10 ,  G01V3/10

CPC classification number: B60L53/124 ,  H02J50/10 ,  G01V3/101 ,  B60K6/28

Abstract: A detection device (100) includes a detection mat (102) having a plurality of detection coils (106), and at least one pair of groups of detection coils (106), the pair of groups of detection coils (106) includes first and second groups of detection coils (106). The first and second group of detection coils (106) comprises first and second first and second impedance values. The detection device (100) includes one or more drive sub-systems (112) and a comparison sub-system (112). The drive sub-systems (112) are operatively coupled to the detection mat (102) and configured to excite at least one pair of groups of detection coils (106). The comparison sub-system (114) is operatively coupled to the detection mat (102) and configured to receive a differential current signal from the pair of groups of detection coils (106), the comparison sub-system (114) is configured to generate a control signal based on the differential current signal.

公开(公告)号：US11719847B2

公开(公告)日：2023-08-08

申请号：US17836841

申请日：2022-06-09

Applicant: WiTricity Corporation

Inventor： Hans Peter Widmer ,  Lukas Sieber ,  Andreas Daetwyler

IPC: B60L53/12 ,  G01V3/10 ,  B60L3/00 ,  B60L3/04 ,  B60L53/36 ,  B60L55/00 ,  B60L53/65 ,  B60L53/66 ,  B60L50/60 ,  B60L53/124 ,  B60L53/68 ,  B60L53/122 ,  B60L53/126 ,  B60L53/30 ,  H02J50/10 ,  H02J50/12 ,  H02J50/90 ,  H02J7/00

CPC classification number: G01V3/10 ,  B60L3/0069 ,  B60L3/04 ,  B60L50/66 ,  B60L53/12 ,  B60L53/122 ,  B60L53/124 ,  B60L53/126 ,  B60L53/30 ,  B60L53/305 ,  B60L53/36 ,  B60L53/65 ,  B60L53/665 ,  B60L53/68 ,  B60L55/00 ,  H02J7/00034 ,  H02J50/10 ,  H02J50/12 ,  H02J50/90 ,  B60L2200/12 ,  B60L2200/22 ,  B60L2200/26 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/36 ,  B60L2270/147 ,  Y02E60/00 ,  Y02T10/70 ,  Y02T10/7072 ,  Y02T10/72 ,  Y02T90/12 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/167 ,  Y04S10/126 ,  Y04S30/14

Abstract: An apparatus for detecting a presence of an object includes an inductive sensing coil that is configurable to generate a magnetic field. The inductive sensing coil is configured to have an electrical characteristic that is detectable when generating the magnetic field. The apparatus comprises a controller configured to detect a change in the electrical characteristic and determine a presence of the object based on the detected change in the electrical characteristic.

公开(公告)号：US11670968B2

公开(公告)日：2023-06-06

申请号：US17818890

申请日：2022-08-10

Applicant: WiTricity Corporation

Inventor： Joshua Lee ,  Edward van Boheemen ,  Nicholas Athol Keeling

IPC: H02J50/10 ,  B60L53/30 ,  H02J7/00 ,  B60L53/65 ,  B60L53/124 ,  H02J50/60 ,  H02J50/12 ,  H02M1/42 ,  H02J50/80 ,  H01M10/44 ,  H02H3/18 ,  B60L53/12 ,  H02H7/125 ,  H02J50/40 ,  H02H3/44 ,  H02H3/20

CPC classification number: H02J50/10 ,  B60L53/12 ,  B60L53/124 ,  B60L53/32 ,  B60L53/65 ,  H01M10/44 ,  H02H3/18 ,  H02H7/125 ,  H02J7/0029 ,  H02J7/0047 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02M1/42 ,  H02H3/20 ,  H02H3/44

Abstract: A wireless electric vehicle charging system comprises base-side equipment for generating a magnetic field and vehicle-side equipment for receiving energy via the magnetic field to supply power to a vehicle-driving battery. Monitoring circuitry monitors one or more of voltage, current, or phase associated with the base-side equipment and halts generation of the magnetic field in response to a change in the voltage, current, or phase associated with the operation of the base-side equipment that indicates a fault condition at the vehicle-side equipment, which may include a loss of power or disconnection of a battery. Based on detection of the change, the monitoring circuitry can halt generation of the magnetic field to prevent damage at the vehicle-side equipment.

公开(公告)号：US20180262059A1

公开(公告)日：2018-09-13

申请号：US15887066

申请日：2018-02-02

Applicant: AMI Research & Development, LLC

Inventor： John T. Apostolos ,  William Mouyos

IPC: H02J50/20 ,  H02J7/02 ,  B60L11/18 ,  H01Q7/00

CPC classification number: H02J50/20 ,  B60L53/122 ,  B60L53/124 ,  B60L53/38 ,  B60L2270/147 ,  H01F38/14 ,  H01Q7/00 ,  H02J7/025 ,  H02J50/27 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T90/16

Abstract: A loop antenna in an electric vehicle receives energy wirelessly from a source external to the vehicle, such as from a Radio Frequency (RF) emitter. The use of RF loop antennas to both transmit and receive power greatly reduces the need to align the vehicle with charging station equipment.

公开(公告)号：US10027184B2

公开(公告)日：2018-07-17

申请号：US15170397

申请日：2016-06-01

Applicant: WiTricity Corporation

Inventor： Simon Verghese ,  Morris P. Kesler ,  Katherine L. Hall ,  Herbert T. Lou

IPC: H01F38/14 ,  H01F37/00 ,  H02J50/60 ,  G01R33/10 ,  H02J17/00 ,  G01V3/10 ,  B60L11/18 ,  H02J50/12 ,  H02J7/02 ,  H02J5/00 ,  H01F27/28

CPC classification number: H02J50/60 ,  B60L53/12 ,  B60L53/124 ,  G01R33/10 ,  G01V3/10 ,  H01F27/2804 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14

Abstract: A wireless energy transfer system includes a foreign object debris detection system. The system includes at least one wireless energy transfer source configured to generate an oscillating magnetic field. The foreign object debris may be detected by at least one field gradiometer positioned in the oscillating magnetic field. The voltage of the at least one field gradiometer may be measured using readout circuitry and a feedback loop based on the readings from the gradiometers may be used to control the parameters of the wireless energy source.