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公开(公告)号：US20250100395A1
公开(公告)日：2025-03-27
申请号：US18727997
申请日：2022-11-28
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Kazutaka KIMURA , Toshiya HASHIMOTO , Makoto HASHIMOTO , Kazuyoshi OBAYASHI , Keisuke TANI , Nobuhisa YAMAGUCHI , Masaki KANESAKI , Yuichi TAKEMURA
Abstract: A vehicle includes: a wireless power receiver that receives power in a wireless manner from a plurality of wireless power transmitters arranged at predetermined intervals in a vehicle traveling direction on a traveling path; a rotating electric machine capable of generating driving force for traveling; an inverter that exchanges power with the rotating electric machine; a first power supply; a second power supply having higher output density and lower capacity density than the first power supply; and a DC-DC converter that exchanges power with the second power supply. Further, the wireless power receiver, the inverter, the DC-DC converter, and the first power supply are electrically connected in parallel to a power bus that supplies the power from the wireless power receiver to the inverter, and the second power supply and the power bus are electrically connected via the DC-DC converter.
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公开(公告)号：US20220149665A1
公开(公告)日：2022-05-12
申请号：US17583926
申请日：2022-01-25
Applicant: DENSO CORPORATION
Inventor： Kazuyoshi OBAYASHI , Nobuhisa YAMAGUCHI
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.
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公开(公告)号：US20210402939A1
公开(公告)日：2021-12-30
申请号：US17472934
申请日：2021-09-13
Applicant: DENSO CORPORATION
Inventor： Kazuyoshi OBAYASHI , Naoki KATAYAMA
IPC: B60R16/033 , B60R16/03 , H02J7/00 , H02J9/06
Abstract: A power supply system for a mobile object, includes a normal power supply, a normal current path connected to the normal power supply, a redundant power supply, a redundant current path connected to the redundant power supply. The power supply system further includes a first current path connected to a first redundant load, and a second current path disposed in parallel with the first current path and connected to a second redundant load. The power supply system further includes a path switch including a first normal switch and a second normal switch, and a controller controlling the path switch. The normal power supply is connected to a normal load, and is connectable to at least one of the first redundant load and the second redundant load.
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公开(公告)号：US20210391757A1
公开(公告)日：2021-12-16
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
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.
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公开(公告)号：US20210143684A1
公开(公告)日：2021-05-13
申请号：US17150351
申请日：2021-01-15
Applicant: DENSO CORPORATION
Inventor： Hayato SUMIYA , Eisuke TAKAHASHI , Nobuhisa YAMAGUCHI , Kazuyoshi OBAYASHI , Shimpei TAKITA , Koji MAZAKI , Mitsuru SHIBANUMA , Masaki KANESAKI , Takuya KIGUCHI , Kazuhiro UDA
Abstract: A contactless power feeding apparatus includes a plurality of primary coils mounted on a road and a power feed controller which uses a portion of the primary coils as a power transmitting coil to achieve delivery of electrical power from the power transmitting coil to a secondary coil mounted in a vehicle. The power feed controller uses a selected primary coil that is one of the primary coils other than the power transmitting coil to decrease a leakage of magnetic flux arising from excitation of the power transmitting coil. Instead of the selected primary coil, the secondary coil may be used to reduce the leakage of magnetic flux.
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Patent Agency Ranking
公开(公告)号：US20200216002A1
公开(公告)日：2020-07-09
申请号：US16825312
申请日：2020-03-20
Applicant: DENSO CORPORATION
Inventor： Koji MAZAKI , Kazuyoshi OBAYASHI , Tadatoshi ASADA
Abstract: A power supply system having a plurality of power systems is provided with a power output section in each of the power systems, an electrical load in each of the power systems, operating from power supplied by the power output section, main paths that connect the power output sections of adjacent ones of the power systems, an inter-system switch that establishes a conducting condition between the adjacent power systems by being turned on and establishes a disconnected condition between the adjacent power systems by being turned off, and an intra-system switch in each of the power systems, which is disposed on the main path between the power output section and the inter-system switch, and which establishes a conducting condition between the power output section and the electrical load by being turned on and establishes a disconnected condition between the power output section and the electrical load by being turned off.
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公开(公告)号：US20250093168A1
公开(公告)日：2025-03-20
申请号：US18965538
申请日：2024-12-02
Applicant: DENSO CORPORATION
Inventor： Kazuyoshi OBAYASHI , Keisuke Tani , Nobuhisa Yamaguchi
Abstract: A vehicle control device for an in-motion power transfer system that wirelessly powers a vehicle during travel is provided, where the in-motion power transfer system is equipped with power transmitting coils installed to a road and a power receiving coil installed to the vehicle. The vehicle control device includes a travel route setting unit configured to use a HD map to set a travel route that includes information regarding a lateral travel position of the vehicle on the road. The travel route setting unit is configured to set the travel route of the vehicle so that the vehicle is in a powerable state where the power receiving coil faces any one of the power transmitting coils when the vehicle travels in a powerable section, which is a section of the road where the power transmitting coils are embedded.
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公开(公告)号：US20250055323A1
公开(公告)日：2025-02-13
申请号：US18931818
申请日：2024-10-30
Applicant: DENSO CORPORATION
Inventor： Masaya TAKAHASHI , Mitsuru SHIBANUMA , Yusei NAKAYASHIKI , Eisuke TAKAHASHI , Kazuyoshi OBAYASHI , Nobuhisa YAMAGUCHI
IPC: H02J50/12 , B60L53/122 , H01F38/14 , H02J50/40
Abstract: A wireless power supply apparatus that supplies power to a reception apparatus in a wireless manner, the wireless power supply apparatus including: a power source apparatus that outputs an AC power, a transmission coil electrically connected to the power source apparatus; and a setting circuit interposed between the power source apparatus and the transmission coil, setting the transmission coil to be in either a power feeding state or a standby state, wherein the setting circuit is provided separately from the power source apparatus.
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公开(公告)号：US20230341478A1
公开(公告)日：2023-10-26
申请号：US18214702
申请日：2023-06-27
Applicant: DENSO CORPORATION
Inventor： Kazuyoshi OBAYASHI , Nobuhisa YAMAGUCHI
IPC: G01R33/00
CPC classification number: G01R33/0017
Abstract: A magnetic detection system is provided which is usable in a movable body including a power receiving system that receives power from a power transmission system by electromagnetic induction. The magnetic detection system includes at least one magnetic flux measuring unit that detects a magnetic flux including a magnetic source magnetic flux from a magnetic source disposed on the ground, and a signal processing unit that suppresses influence of a magnetic flux generated from the power receiving system on the magnetic flux measured by the magnetic flux sensor unit, to detect the magnetic source magnetic flux.
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公开(公告)号：US20220169193A1
公开(公告)日：2022-06-02
申请号：US17672849
申请日：2022-02-16
Applicant: DENSO CORPORATION
Inventor： Koji MAZAKI , Kazuyoshi OBAYASHI , Tadatoshi ASADA
Abstract: A power supply system having a plurality of power systems is provided with a power output section in each of the power systems, an electrical load in each of the power systems, operating from power supplied by the power output section, main paths that connect the power output sections of adjacent ones of the power systems, an inter-system switch that establishes a conducting condition between the adjacent power systems by being turned on and establishes a disconnected condition between the adjacent power systems by being turned off, and an intra-system switch in each of the power systems, which is disposed on the main path between the power output section and the inter-system switch, and which establishes a conducting condition between the power output section and the electrical load by being turned on and establishes a disconnected condition between the power output section and the electrical load by being turned off.
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