公开(公告)号：US10279691B2

公开(公告)日：2019-05-07

申请号：US14390906

申请日：2013-04-04

Applicant: DENSO CORPORATION

Inventor： Kazuyoshi Obayashi ,  Kouji Mazaki ,  Eisuke Takahashi ,  Keisuke Tani

IPC: H02J7/00 ,  H02J7/02 ,  H01F27/38 ,  H01F27/40 ,  H01F38/14 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  B60L11/18

Abstract: A contactless feeding pad includes a power-receiving side pad, a power-transmitting side pad, and an auxiliary pad. The power-transmitting side pad is different from the power-receiving side pad in size or shape and transmits electric power contactlessly to the power-receiving side pad while being situated oppositely to the power-receiving side pad. The auxiliary pad is installed between the power-transmitting side pad and the power-receiving side pad in close proximity to the power-transmitting side pad or the power-receiving side pad and forms a resonance circuit.

公开(公告)号：US20250083541A1

公开(公告)日：2025-03-13

申请号：US18952322

申请日：2024-11-19

Applicant: DENSO CORPORATION

Inventor： Kazuyoshi Obayashi ,  Keisuke Tani ,  Nobuhisa Yamaguchi

IPC: B60L53/122 ,  B60L50/53 ,  B60L53/20 ,  H02J50/40

Abstract: A power transmission device used in an in-motion power supply system that supplies power to a vehicle in motion in a wireless manner, the power transmission device being disposed on a road based on a guide line, which is a line used when a travel route is set using an HD map in a travel route setting section, and is provided with a power transmission coil that supplies power to a power reception coil of the vehicle in a wireless manner, and a power transmission circuit that supplies power to the power transmission coil.

公开(公告)号：US12000905B2

公开(公告)日：2024-06-04

申请号：US17483174

申请日：2021-09-23

Applicant: DENSO CORPORATION

Inventor： Kazuyoshi Obayashi ,  Masaya Takahashi ,  Naoki Katayama

IPC: G01R31/54 ,  G01R31/00 ,  G01R31/52 ,  H02J7/14

CPC classification number: G01R31/54 ,  G01R31/006 ,  G01R31/52 ,  H02J7/1438

Abstract: A power supply system for moving body includes a first power source, a first current path, a second power source, a second current path. The first power source supplies electric power to a redundant load. The first current path connects the first power source and the redundant load. The second power source supplies electric power to the redundant load. The second current path connects the second power source and the redundant load.

公开(公告)号：US11901741B2

公开(公告)日：2024-02-13

申请号：US17583926

申请日：2022-01-25

Applicant: DENSO CORPORATION

Inventor： Kazuyoshi Obayashi ,  Nobuhisa Yamaguchi

IPC: H02J50/12 ,  H02J50/90 ,  H02J7/02 ,  H02J50/50

CPC classification number: H02J50/12 ,  H02J50/50 ,  H02J7/02 ,  H02J50/90 ,  H02J2207/20

Abstract: A power supplying device includes a power transmission circuit transmitting AC power and a power transmission resonance circuit including a power transmission coil. A power receiving device includes a power reception resonance circuit including a power reception coil. When a coupling coefficient between the power transmission coil and the power reception coil is a predetermined coupling coefficient, resonance of a first resonance mode having a first resonance frequency and a second resonance mode having a second resonance frequency are generated, a resonance frequency of the power transmission resonance circuit and the power reception resonance circuit is set to a value which is one of the first and second resonance frequencies, and the set value is a frequency deviating from a reference resonance frequency of the power transmission resonance circuit alone by a predetermined deviation frequency or more. A driving frequency of the AC power is set to the set value.

公开(公告)号：US10862336B2

公开(公告)日：2020-12-08

申请号：US15516336

申请日：2016-01-27

Applicant: DENSO CORPORATION

Inventor： Kazuyoshi Obayashi ,  Akira Kamiya ,  Eisuke Takahashi

IPC: H02J50/12 ,  B60L53/122 ,  H02J50/80 ,  H02J7/00

Abstract: A non-contact power supply device includes: a power transmission coil that generates a magnetic flux by an alternating current; a power transmission circuit that supplies the alternating current to the power transmission coil; a power transmission side control circuit that controls the power transmission circuit; a power receiving coil that generates an alternating current by interlinking the magnetic flux generated in the power transmission coil; and a power receiving circuit that converts the alternating current supplied from the power receiving coil into a direct current, and supplies the direct current to the power supply target. The power transmission side control circuit obtains a voltage vector target value based on a relationship between a voltage vector and a current vector, and controls the power transmission circuit to set the voltage vector of the alternating current output from the power transmission circuit to be the voltage vector target value.

公开(公告)号：US10230269B2

公开(公告)日：2019-03-12

申请号：US15121926

申请日：2015-03-02

Applicant: DENSO CORPORATION

Inventor： Eisuke Takahashi ,  Kazuyoshi Obayashi ,  Kouji Mazaki ,  Takuro Tsutsui

IPC: H02J7/02 ,  H01F38/14 ,  H02J50/10 ,  H04B5/00 ,  B60L11/18 ,  H02J50/12 ,  H02J50/80 ,  H02J7/00 ,  H02J17/00 ,  H02J50/90 ,  B60M7/00

Abstract: A contactless power supply system includes: a power supply pad including a power supply core formed of a magnetic material, and a power supply coil that uses the power supply core as a magnetic path; and a filter circuit including an inductor coil, the filter circuit being connected to the power supply pad. The power supply pads to which the respective filter circuits are connected are brought into a face-to-face relation so that electric power is transmitted from one power supply pad to the other power supply pad in a contactless manner. An inductor coil of at least either one of the filter circuits is provided to the power supply core of the power supply pad to which the filter circuit is connected, and the inductor coil uses the power supply core as a magnetic path.

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：US10807547B2

公开(公告)日：2020-10-20

申请号：US15429801

申请日：2017-02-10

Applicant: DENSO CORPORATION

Inventor： Kazuyoshi Obayashi ,  Eisuke Takahashi

IPC: B60R16/033 ,  H02J7/00 ,  F02N11/10 ,  F02N11/08 ,  F02D41/00 ,  F02B39/10

Abstract: A power supply apparatus configures an on-board power supply system that includes a first battery and a second battery. A first module and a first detecting unit are electrically connected to the first battery as a first electrical load. A second module and a second detecting unit are electrically connected to the second battery as a second electrical load. The first module and the second module configure an electric power steering apparatus. A starter is electrically connected to the first battery. The first battery and the second battery are electrically connected by a connection path. A resistor unit is provided on the connection path.

公开(公告)号：US09876365B2

公开(公告)日：2018-01-23

申请号：US14766676

申请日：2014-02-04

Applicant: DENSO CORPORATION

Inventor： Kouji Mazaki ,  Nobuhisa Yamaguchi ,  Keisuke Tani ,  Eisuke Takahashi ,  Kazuyoshi Obayashi

IPC: H02J5/00 ,  H02M7/217 ,  H02M3/158 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/90 ,  H02M3/158 ,  H02M3/3353 ,  H02M7/217 ,  H02M2001/007

Abstract: A contactless power supply system for transferring power without contact between a primary side coil and a secondary side coil is provided. In the contactless power supply system, a manipulation unit manipulates a secondary side converter so that power outputted to a load is controlled to be a command value. The manipulation unit manipulates an input voltage of a primary side resonance circuit so that a current flowing in the primary side resonance circuit equals a product of a current flowing in the secondary side resonance circuit and a current coefficient. The current coefficient is defined as a square root of a specific value and the specific value is an equivalent resistance of the secondary side resonance circuit divided by an equivalent resistance of the primary side resonance circuit.

公开(公告)号：US09748773B2

公开(公告)日：2017-08-29

申请号：US14389591

申请日：2013-03-20

Applicant: DENSO CORPORATION

Inventor： Kouji Mazaki ,  Eisuke Takahashi ,  Kazuyoshi Obayashi

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J5/00 ,  H01F38/14 ,  H02J7/02 ,  B60L1/00 ,  B60L11/18 ,  H01F27/28 ,  H02J17/00 ,  B60M7/00 ,  H01F27/34

CPC classification number: H02J50/00 ,  B60L1/003 ,  B60L11/182 ,  B60L11/1824 ,  B60L11/1829 ,  B60L11/1833 ,  B60L11/1838 ,  B60L11/1868 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60M7/003 ,  H01F27/28 ,  H01F38/14 ,  H01F2027/348 ,  H02J5/005 ,  H02J7/02 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7072 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163

Abstract: A contactless power supply device includes a power-transmitting-side pad and a power-receiving-side pad. Each of the power-transmitting-side pad and the power-receiving-side pad has a core and a coil. The core has a plate-shaped yoke portion. The coil has a first coil portion and a second coil portion. The first coil portion is arranged on a top surface of the yoke portion. The second coil portion is arranged along an outer periphery of the yoke portion.