-
公开(公告)号：US20220203848A1
公开(公告)日：2022-06-30
申请号：US17698010
申请日：2022-03-18
Applicant: DENSO CORPORATION
Inventor： Kouji MAZAKI , Nobuhisa YAMAGUCHI , Mitsuru SHIBANUMA
IPC: B60L53/122 , H02J50/12 , H02J50/40 , H02J50/90 , H02J50/00
Abstract: A vehicle power supply system is configured to supply power to a vehicle from a power supply apparatus laid on a power supply lane of a vehicle travel path, the power supply apparatus includes a plurality of power supply segments laid in a preset interval along the power supply lane, and a controller configured to control the plurality of power supply segments. The controller is configured to estimate timing of the vehicle reaching a next power supply segment that supplies power next after a present power supply segment that is supplying power, from at least a vehicle velocity derived from a change in position of the vehicle, and cause the next power supply segment to start power supply at the timing estimated.
-
公开(公告)号：US20230110224A1
公开(公告)日：2023-04-13
申请号：US18078306
申请日：2022-12-09
Applicant: DENSO CORPORATION
Inventor： Mitsuru SHIBANUMA , Masaya TAKAHASHI , Eisuke TAKAHASHI , Nobuhisa YAMAGUCHI
Abstract: A coil unit for a contactless power supply system includes a plurality of coils for electric power transfer, and a magnetic flux reduction structure. The plurality of coils include a first coil and a second coil adjacent to the first coil in a predetermined direction. The magnetic flux reduction structure reduces, during electric power transfer using the first coil, magnetic flux by which the first coil causes an induced voltage or induced current to be generated in the second coil.
-
公开(公告)号：US20220072965A1
公开(公告)日：2022-03-10
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
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：US20220085658A1
公开(公告)日：2022-03-17
申请号：US17535836
申请日：2021-11-26
Applicant: DENSO CORPORATION
Inventor： Mitsuru SHIBANUMA , Masaki KANESAKI , Nobuhisa YAMAGUCHI
Abstract: A period for performing pre-power-supply check prior to main power supply from a power supply device to a power reception device is provided and, a power-receiving-side controller is configured to: check a supplied electric power supplied from the power supply device to the power reception device, in a state where an effective value of an output voltage of a inverter circuit is fixed to a predetermined first voltage by the power-supply-side controller and an input voltage of the DC-DC converter is fixed to a predetermined second voltage by the power-receiving-side controller, in the pre-power-supply check, and cause, in response to the supplied electric power being equal to a predetermined electric power or more, the power supply device to start the main power supply.
-
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.
-
Patent Agency Ranking
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.
-
公开(公告)号：US20190145368A1
公开(公告)日：2019-05-16
申请号：US16308699
申请日：2017-06-15
Applicant: DENSO CORPORATION
Inventor： Takuro NAKAOKA , Akihiro IMURA , Mitsuru SHIBANUMA , Yuki KUBO , Minoru OKAMIYA , Suguru MIZUNO
Abstract: A first controller includes a start control section and a passage determination section. After activating a second starter to start cranking, the start control section stops the operation of the second starter and starts the motor operation of the first starter at a predetermined timing. The passage determination section determines whether a predetermined passage conditional expression holds after cranking is started by the second starter. The start control section stops the operation of the second starter and starts the motor operation of the first starter if the passage conditional expression holds before the engine passes the first compression top dead center, regardless of whether the engine has passed the first compression top dead center.
-
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.
-
公开(公告)号：US20240006923A1
公开(公告)日：2024-01-04
申请号：US18369490
申请日：2023-09-18
Applicant: DENSO CORPORATION
Inventor： Mitsuru SHIBANUMA , Masaya TAKAHASHI , Eisuke TAKAHASHI , Nobuhisa YAMAGUCHI
Abstract: A power transmission apparatus supplies power to a power reception apparatus without contact therebetween. The power transmission apparatus includes: a power conversion unit that outputs an alternating-current voltage of a predetermined frequency; a power transmission unit that has a power transmission coil and a capacitor that is connected to the power transmission coil; a transmission line that connects the power conversion unit and the power transmission unit; and a compensator that is disposed between the power conversion unit and the transmission line. The compensator includes: an inductive reactance element that has an inductive reactance that is greater than an inductive reactance of the transmission line; and a capacitor that reduces an inductive reactance that is a sum of an inductive reactance of the transmission line and an inductive reactance of the inductive reactance element. The inductive reactance element and the capacitor are connected.
-
公开(公告)号：US20230396100A1
公开(公告)日：2023-12-07
申请号：US18235168
申请日：2023-08-17
Applicant: DENSO CORPORATION
Inventor： Masaya TAKAHASHI , Mitsuru SHIBANUMA , Kazuyuki KATO , Yusei NAKAYASHIKI , Eisuke TAKAHASHI , Nobuhisa YAMAGUCHI
CPC classification number: H02J50/12 , H02J7/00712 , H02J50/402 , H02J7/0047 , H02J50/70
Abstract: A primary-side resonant circuit of a power transmission apparatus has an impedance varying element that increases, when supply of electric power is stopped, an input impedance of the primary-side resonant circuit so as to have predetermined standby current flowing through a primary-side coil. A power reception apparatus includes a magnetic flux amplifier circuit configured to amplify magnetic flux generated by the standby current flowing through the primary-side coil of the primary-side resonant circuit. The power transmission apparatus further includes a primary-side detection circuit configured to detect a change in the voltage of the primary-side coil, a change in electric current flowing through the primary-side coil or a change in a magnetic field in the vicinity of the primary-side coil; each of the changes is caused by the magnetic flux amplified by the magnetic flux amplifier circuit.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.013 seconds)
