公开(公告)号：US11926227B2

公开(公告)日：2024-03-12

申请号：US17528718

申请日：2021-11-17

Applicant: DENSO CORPORATION

Inventor： Kouji Mazaki ,  Nobuhisa Yamaguchi ,  Eisuke Takahashi ,  Mitsuru Shibanuma ,  Shinpei Takita ,  Masaya Takahashi ,  Hayato Sumiya ,  Masaki Kanesaki ,  Takuya Kiguchi ,  Kazuhiro Uda ,  Yuusei Nakayashiki

IPC: B60L53/12 ,  B60L53/60 ,  G01R31/52 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

CPC classification number: B60L53/12 ,  B60L53/60 ,  G01R31/52 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

Abstract: In a moving-object power supply system, a control unit selects, as a power transmission segment, one of segments included in at least one power transmission section. The control unit supplies, through a power supply circuit, power to the power transmission segment to thereby generate a magnetic field through a power transmission coil of the power transmission segment. The control unit determines, based on an ascertained first electrical characteristic of the power transmission segment and an ascertained second electrical characteristic of at least one power non-transmission segment, whether there is a malfunction in each of the power transmission segment and the at least one power non-transmission segment.

公开(公告)号：US12017543B2

公开(公告)日：2024-06-25

申请号：US17505136

申请日：2021-10-19

Applicant: DENSO CORPORATION

Inventor： Masaki Kanesaki ,  Mitsuru Shibanuma ,  Hayato Sumiya ,  Takuya Kiguchi ,  Eisuke Takahashi ,  Shinpei Takita ,  Masaya Takahashi ,  Kazuhiro Uda ,  Yuusei Nakayashiki ,  Kazuyoshi Obayashi ,  Nobuhisa Yamaguchi

IPC: B60L3/00 ,  B60R16/033 ,  H02J50/40

CPC classification number: B60L3/0046 ,  B60R16/033 ,  B60L2240/54 ,  H02J50/402

Abstract: In an in-motion power supply system with a plurality of power supply segments to supply power to a vehicle, a vehicle position detection unit detects a position of the vehicle relative to each segment. An electrical characteristic acquisition unit acquires electrical characteristics in the segment involved in power transfer, and an abnormality determination unit uses the electrical characteristics to determine whether there is an abnormality in the segment involved in power transfer. The abnormality determination unit shares the electrical characteristics between a subject segment subjected to abnormality determination and at least one of a previous segment previous to the subject segment and a subsequent segment subsequent to the subject segment, and compares the electrical characteristics in the subject segment with at least either the electrical characteristics in the previous segment or the electrical characteristics in the subsequent segment to determine whether the electrical characteristics in the subject segment are abnormal.

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：US11984733B2

公开(公告)日：2024-05-14

申请号：US17580380

申请日：2022-01-20

Applicant: DENSO CORPORATION

Inventor： Hayato Sumiya ,  Eisuke Takahashi ,  Nobuhisa Yamaguchi ,  Masaya Takahashi

IPC: H02J50/12 ,  B60L50/53 ,  H02J50/50 ,  H04B5/00

CPC classification number: H02J50/12 ,  B60L50/53 ,  H02J50/50 ,  H04B5/0037 ,  H04B5/0081

Abstract: In a dynamic wireless power transfer system, a power transmission coil is provided in a road. A power transmission circuit supplies electric power to the power transmission coil. A power reception coil is provided in a vehicle. A power reception circuit is connected to the power reception coil. A relay circuit is provided in a tire of the vehicle. The relay circuit includes at least two relay coils that are connected in series. The relay circuit transfers electric power from the power transmission coil to the power reception coil by one relay coil of the two relay coils opposing the power transmission coil and the other relay coil opposing the power reception coil. A resonance frequency of the relay circuit is a frequency that is within a fixed range that is centered on an applied frequency of an alternating-current voltage that is applied to the power transmission coil.

公开(公告)号：US12115872B2

公开(公告)日：2024-10-15

申请号：US17134636

申请日：2020-12-28

Applicant: DENSO CORPORATION

Inventor： Eisuke Takahashi ,  Nobuhisa Yamaguchi ,  Koji Mazaki ,  Shimpei Takita ,  Hayato Sumiya ,  Masaki Kanesaki ,  Takuya Kiguchi ,  Kazuhiro Uda ,  Mitsuru Shibanuma ,  Kazuyoshi Obayashi ,  Tomoyuki Fujikawa ,  Masaya Takahashi ,  Yusei Nakayashiki

IPC: B60L53/12 ,  B60L9/00 ,  B60L53/122 ,  B60L53/39 ,  H01F38/14 ,  H02J50/12 ,  H02J50/40

CPC classification number: B60L53/122 ,  B60L9/00 ,  B60L53/12 ,  B60L53/39 ,  H01F38/14 ,  H02J50/12 ,  H02J50/402

Abstract: A contactless power supply system is provided for supplying electric power to a vehicle in a contactless manner during traveling of the vehicle. The contactless power supply system includes a plurality of primary coils installed along a traveling direction in a road and a secondary coil mounted to the vehicle. Each of the primary coils is a single-phase coil with the secondary coil being a multi-phase coil, or is a multi-phase coil with the secondary coil being a single-phase coil.

公开(公告)号：US12095287B2

公开(公告)日：2024-09-17

申请号：US17460479

申请日：2021-08-30

Applicant: DENSO CORPORATION

Inventor： Takuya Kiguchi ,  Nobuhisa Yamaguchi ,  Eisuke Takahashi ,  Hayato Sumiya ,  Tomoyuki Fujikawa ,  Koji Mazaki ,  Shimpei Takita ,  Masaki Kanesaki ,  Masaya Takahashi ,  Kazuhiro Uda ,  Yusei Nakayashiki ,  Mitsuru Shibanuma ,  Kazuyoshi Obayashi

IPC: H02J50/40 ,  B60L5/42 ,  E01F11/00 ,  H01F27/245 ,  H01F27/36 ,  H02J50/10

CPC classification number: H02J50/402 ,  B60L5/42 ,  E01F11/00 ,  H01F27/245 ,  H01F27/363 ,  H02J50/10 ,  H02J2310/48

Abstract: A dynamic wireless power transfer system performs, through a plurality of primary coils installed along a traveling direction of a road and a secondary coil mounted in a vehicle, power transfer to the vehicle while the vehicle is traveling. The secondary coil is an M-phase coil including M coils, M denoting an integer which is two or higher. The M coils each include a coil end extending along a front-rear direction of the vehicle and a main coil portion extending along a width direction of the vehicle, the M coils each being configured such that a magnetic resistance of a magnetic path where a magnetic flux of the coil end passes is higher than a magnetic resistance of a magnetic path where a magnetic flux of the main coil portion passes.

公开(公告)号：US11850952B2

公开(公告)日：2023-12-26

申请号：US17476073

申请日：2021-09-15

Applicant: DENSO CORPORATION

Inventor： Eisuke Takahashi ,  Hayato Sumiya ,  Takuya Kiguchi ,  Nobuhisa Yamaguchi

IPC: B60L50/16 ,  H02J50/12 ,  B60L53/12

CPC classification number: B60L50/16 ,  B60L53/12 ,  H02J50/12

Abstract: A system for power feeding during traveling includes a coil for power transmission, a power supply unit which supplies power to the coils, at least one shielding member which shields an electromagnetic field of the coil, and a hole provided to the shielding members.