公开(公告)号：US20230241987A1

公开(公告)日：2023-08-03

申请号：US17587635

申请日：2022-01-28

Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.

Inventor： Yanghe Liu ,  Shailesh N. Joshi

IPC: B60L53/122 ,  B60L53/30 ,  B60L53/62 ,  B60L53/66 ,  H02J50/80

CPC classification number: B60L53/122 ,  B60L53/305 ,  B60L53/62 ,  B60L53/66 ,  H02J50/80 ,  B64C39/024

Abstract: A dynamic wireless power transfer system can include a dynamic wireless power transfer transmission system and a dynamic wireless power transfer reception system. The dynamic wireless power transfer transmission system can include a signal receiver, an array of coils of conductors, an array of switches, and a controller. The dynamic wireless power transfer reception system can include a signal transmitter and an array of coils of conductors. The signal transmitter can be configured to transmit, to the signal receiver, a signal. The signal can include information indicative of a size of the array of coils of conductors of the dynamic wireless power transfer reception system. The array of switches can be configured to connect an alternating current source to the array of coils of conductors of the dynamic wireless power transfer transmission system. The controller can control, according to the information, positions of switches of the array of switches.

公开(公告)号：US20230179030A1

公开(公告)日：2023-06-08

申请号：US18154217

申请日：2023-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongcheng YOU ,  Xiaosheng ZENG ,  Yunhe MAO ,  Zhixian WU ,  Shuangquan CHEN ,  Yanding LIU

IPC: H02J50/90 ,  B60L53/122 ,  H02J50/12

CPC classification number: H02J50/90 ,  B60L53/122 ,  H02J50/12

Abstract: Example positioning system based on a low frequency magnetic field and apparatus are described. One example positioning system includes a low frequency magnetic field transmit apparatus and a low frequency magnetic field receive apparatus. The transmit apparatus includes a transmit coil, a conflict detect coil, and a magnetic field generation detection control module. The receive apparatus includes a receive coil and a magnetic field detection control module. When the conflict detect coil does not sense a low frequency magnetic field signal, the magnetic field generation detection control module controls the transmit coil to transmit a first low frequency magnetic field signal. When the received low frequency magnetic field signal is the first low frequency magnetic field signal, the magnetic field detection control module determines relative positions of the transmit coil and the receive coil based on signal strength of the first low frequency magnetic field signal.

公开(公告)号：US20240336151A1

公开(公告)日：2024-10-10

申请号：US18290865

申请日：2022-07-04

Applicant: NEXANS

Inventor： Nicolas LALLOUET

IPC: B60L53/122 ,  B60L53/302

CPC classification number: B60L53/122 ,  B60L53/302

Abstract: The invention relates to several configurations of a system for wirelessly recharging electric batteries of vehicles suitable for equipping a parking area, comprising: several enclosures (2) each comprising a superconducting coil (3), each enclosure (2) being suitable to be positioned at a parking location (1) of the area and comprising an input opening (2a) and an output opening (2b) for the passage of the superconducting coil (3) that it contains; an electric circuit comprising intermediate portions (4) of cable electrically connecting the superconducting coils (3) pairwise so as to form a set of superconducting coils (3) in series, two cable terminations (8), two cable end portions (4′) configured to electrically connect each end of the set to the terminals of an electrical power supply; and a cooling circuit suitable for cooling each superconducting coil using a circulation of a cryogenic fluid.

公开(公告)号：US20240322612A1

公开(公告)日：2024-09-26

申请号：US18582711

申请日：2024-02-21

Applicant: HONDA MOTOR CO., LTD.

Inventor： Jin Katsuya

IPC: H02J50/80 ,  B60L53/122 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J50/12 ,  B60L53/122

Abstract: A contactless electric power transmission system includes an electric power reception device and a control device. The electric power reception device receives electric power transmitted in a contactless manner between the electric power reception device and an electric power transmission device. The control device sets, in a coupling zone in which a coupling degree between a primary side coil of the electric power transmission device and a secondary side coil of the electric power reception device is equal to or more than a predetermined degree, a communication zone in which the coupling degree is relatively small, and an electric power transmission zone in which the coupling degree is relatively large. The control device transmits information relating to electric power transmission in the electric power transmission zone from the electric power reception device to the electric power transmission device by communication between the electric power transmission device and the electric power reception device when the secondary side coil is present in a foremost communication zone of the coupling zone.

公开(公告)号：US20240317088A1

公开(公告)日：2024-09-26

申请号：US18599927

申请日：2024-03-08

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Takahiro SUZUKI

IPC: B60L53/22 ,  B60K11/02 ,  B60L53/122

CPC classification number: B60L53/22 ,  B60K11/02 ,  B60L53/122 ,  B60L2210/30

Abstract: A vehicle includes a battery, a coil, a metal body located at a position that is affected by a magnetic field generated in the coil, a charger configured to convert alternating-current power supplied from outside the vehicle into direct-current power and supply the direct-current power to the battery, and processing circuitry configured to control the charger. The charger is configured to receive supply of direct-current power from the battery. The processing circuitry is further configured to control the charger so that the charger modulates the direct-current power, which is supplied from the battery, over time and supplies the power to the coil.

公开(公告)号：US12088188B2

公开(公告)日：2024-09-10

申请号：US17144764

申请日：2021-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhixian Wu ,  Yunhe Mao ,  Xiaosheng Zeng ,  Shuangquan Chen

IPC: H02M1/00 ,  B60L53/122 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80 ,  H02M3/00 ,  H02M3/335

CPC classification number: H02M1/007 ,  B60L53/122 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80 ,  H02M3/01 ,  H02M3/33573

Abstract: A wireless charging control method for an electric vehicle or a wireless charging transmitter includes an inner-loop control circuit, a boost circuit, an inverter circuit, and a transmitting coil, where the inner-loop control circuit is coupled to both the boost circuit and the inverter circuit, and an input end and an output end of the inverter circuit are respectively coupled to the boost circuit and the transmitting coil, and the inner-loop control circuit is configured to obtain a first current reference signal and a sampled current signal of the transmitting coil, compare the first current reference signal with the sampled current signal to obtain an absolute value of a difference between the first current reference signal and the sampled current signal, and adjust a phase shift angle of the inverter circuit or a duty cycle of the boost circuit when the absolute value is greater than a preset deviation.

公开(公告)号：US12049144B2

公开(公告)日：2024-07-30

申请号：US17840963

申请日：2022-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuangquan Chen ,  Zhixian Wu ,  Yunhe Mao ,  Xiaosheng Zeng ,  Hongcheng You

IPC: B60L53/122 ,  B60L53/62 ,  H02J50/12

CPC classification number: B60L53/122 ,  B60L53/62 ,  H02J50/12

Abstract: A transmit end, a receive end, a method, and a system for wireless charging are provided, and are applied to the field of electric vehicles. A transmit-end controller compares an actual output current of an inverter with a preset upper limit value of an output current of the inverter and controls an output voltage of the inverter based on a comparison result to adjust a current of a transmit coil. A receive-end controller receives a sampled value of the current of the transmit coil that is sent by the transmit-end controller and updates a reference value of the current of the transmit coil when a difference between the sampled value of the current of the transmit coil and the reference value of the current of the transmit coil is greater than or equal to a preset value.

公开(公告)号：US12030393B2

公开(公告)日：2024-07-09

申请号：US17252657

申请日：2019-06-24

Applicant: BRUSA Elektronik AG

Inventor： Lukas Böhler ,  Marc Hanselmann ,  Marc Bosch

IPC: B60L53/12 ,  B60L53/122 ,  B60L53/39 ,  B60L53/62 ,  H02J50/10 ,  H02J50/90

CPC classification number: B60L53/12 ,  B60L53/122 ,  B60L53/39 ,  B60L53/62 ,  H02J50/10 ,  H02J50/90

Abstract: A system for charging an energy store in a vehicle and a method for operating the system, wherein the system includes a first transmission unit having a primary coil, arranged outside the vehicle in a stationary manner, and a second transmission unit having a secondary coil, arranged in the vehicle, wherein energy is transmitted via inductive energy transmission from the primary coil to the secondary coil to charge the energy store. The second transmission unit has a signal generator for generating and coupling signals into the secondary coil for transmission via the secondary coil, and the first transmission unit has an evaluation unit, a first auxiliary coil, and a second auxiliary coil, wherein the evaluation unit is designed to ascertain a magnetic coupling and/or a relative position between the first transmission unit and the second transmission unit based on the signals received by the primary coil and the auxiliary coils.

公开(公告)号：US11984735B2

公开(公告)日：2024-05-14

申请号：US17585195

申请日：2022-01-26

Applicant: DENSO CORPORATION ,  The University of Tokyo

Inventor： Hayato Sumiya ,  Eisuke Takahashi ,  Nobuhisa Yamaguchi ,  Masaya Takahashi ,  Hiroshi Fujimoto ,  Osamu Shimizu

IPC: H02J50/50 ,  B60C9/00 ,  B60C19/00 ,  B60L53/122 ,  H02J50/00 ,  H02J50/12

CPC classification number: H02J50/50 ,  B60C19/00 ,  B60L53/122 ,  H02J50/005 ,  H02J50/12 ,  B60C9/0007

Abstract: A dynamic wireless power transfer system includes a power transmission coil, a power transmission circuit, a power reception coil, a power reception circuit, and a relay circuit. The power transmission coil is provided in a road. The power transmission circuit supplies electric power to the power transmission coil. The power reception coil is provided in a vehicle. The power reception circuit is connected to the power reception coil. The relay circuit transfers electric power between the power transmission coil and the power reception coil in a contactless manner.

公开(公告)号：US11964576B2

公开(公告)日：2024-04-23

申请号：US17538020

申请日：2021-11-30

Applicant: Ford Global Technologies, LLC

Inventor： Kevin Mackenzie ,  Jonathan Barker

IPC: B60L53/124 ,  B60L53/122 ,  H02J7/00 ,  H02J50/90 ,  H02J50/60

CPC classification number: B60L53/124 ,  B60L53/122 ,  H02J7/0047 ,  H02J50/90 ,  B60Y2200/91 ,  H02J50/60

Abstract: An electrified vehicle includes a wireless charger that wirelessly receives power from an external source, cameras, LEDs, a speaker, and at least one controller programmed individually or in combination to, when the wireless charger is receiving power from the external source, process images from at least one of the cameras and operate the LEDs and the speaker based on detection of an object within the images. The controller may change the color of the LEDs and/or sound emitted by the speaker in response to whether the object is detected within a first zone farther from the vehicle or a second zone nearer the vehicle. The LEDs and cameras may be positioned on external side mirrors, front, rear, and/or underbody portions of the vehicle. The speaker may be external to the vehicle cabin and provide an audible signal when operating the vehicle in electric mode at low speeds.