-
1.发明授权公开(公告)号：US12272539B2
公开(公告)日：2025-04-08
申请号：US18272492
申请日：2021-12-27
Inventor： Takeshi Umeda , Yohsuke Mitani
Abstract: An auxiliary power supply system includes a plurality of electrical storage devices that supply power to an electrical device. Each of the storage devices has the communication capability with the electrical device. Each of the storage devices provisionally selects one of a plurality of first communication addresses as a provisional communication address of its own. The plurality of first communication addresses have been set for the plurality of electrical storage devices by the electrical device. Each of the storage devices returns a response signal in reply to a transmission signal, to which the provisional communication address of its own is added. Each of the storage devices changes, when finding that any communication error has occurred while returning the response signal, the provisional communication address of its own into one of one or more unused communication addresses belonging to the plurality of first communication addresses that have been set.
-
公开(公告)号：US11251647B2
公开(公告)日：2022-02-15
申请号：US16324051
申请日：2017-08-30
Inventor： Takahiro Kudo , Yohsuke Mitani , Yoshimitsu Odajima
IPC: H02J7/14 , B60R16/033 , F02N11/08 , H02J7/34 , H02J9/06
Abstract: The present disclosure relates to a vehicle electricity storage device capable of maintaining proper backup of a main power supply. The vehicle electricity storage device includes an electricity storage circuit, a main charge circuit, and a precharge circuit. The electricity storage circuit configured to supply stored electricity to a load. The main charge circuit operates to supply electricity of a main power supply to the electricity storage circuit when an ignition switch is in an ON state of allowing an engine to start. The precharge circuit operates to supply electricity of the main power supply to the electricity storage circuit when the main charge circuit is in a state of stopping operation by the ignition switch being turned off.
-
公开(公告)号：US10192691B2
公开(公告)日：2019-01-29
申请号：US15622306
申请日：2017-06-14
Inventor： Kiyoshi Wakinaka , Yohsuke Mitani , Kazuki Morita
Abstract: An electricity storage unit of the present disclosure includes: electricity storage device; holder for holding this electricity storage device; bottomed tubular case for housing electricity storage device and holder; and cover for covering opening of case. At least a part of cover is inserted into case. With this configuration, since a surface on which a joint between cover and case is formed can be disposed on an opening side of case, it is possible to suppress intrusion of a foreign substance, such as a water droplet.
-
公开(公告)号：US10833527B2
公开(公告)日：2020-11-10
申请号：US16114581
申请日：2018-08-28
Inventor： Takahiro Kudo , Yoshimitsu Odajima , Yohsuke Mitani
Abstract: A discharge circuit includes: a first transistor connected to power storage; an operational amplifier for controlling an output current of the first transistor; and the current mirror circuit connected to the operational amplifier. The current mirror circuit includes a second transistor connected to a non-inverting input terminal of the operational amplifier, and a third transistor connected to the power storage.
-
公开(公告)号：US10529499B2
公开(公告)日：2020-01-07
申请号：US16224436
申请日：2018-12-18
Inventor： Kiyoshi Wakinaka , Yohsuke Mitani , Kazuki Morita
Abstract: An electricity storage unit of the present disclosure includes: an electricity storage device; a holder for holding this electricity storage device; a case having a tubular side wall part and a bottom surface part closing one end of the side wall part, the case being formed with an opening at another end of the side wall part; and a cover for covering the opening. The electricity storage device and the holder are housed inside the case. At least a part of the cover is inserted inside the case. An aperture is formed at least part of a region between an outer periphery of the cover and an inner surface of the side wall part.
-
Patent Agency Ranking
公开(公告)号：US11420608B2
公开(公告)日：2022-08-23
申请号：US16491610
申请日：2017-08-28
Inventor： Takeshi Umeda , Yohsuke Mitani
IPC: B60T17/22 , G01R31/392 , G01R31/382 , B60R16/033 , G01R31/01 , H02J9/06 , B60T8/17 , H01M10/42
Abstract: A vehicle electricity storage device includes a capacitor unit for supplying stored electric power to an electronically controlled system, and a microcomputer including a memory. The memory stores a plurality of thresholds (internal resistance limit values) different from each other. Each of the plurality of thresholds is to be compared with an electrical characteristic value (internal resistance value) related to the capacitor unit for determining a deterioration state of the capacitor unit. The each of the plurality of thresholds is stored in association with an identification ID for identifying the electronically controlled system. The microcomputer acquires the identification ID from the electronically controlled system. And the microcomputer selects, from the plurality of thresholds, a threshold associated with the identification ID acquired. Then the microcomputer determines the deterioration state of the capacitor unit by using the electrical characteristic value and the threshold selected.
-
公开(公告)号：US11251636B2
公开(公告)日：2022-02-15
申请号：US16920379
申请日：2020-07-02
Inventor： Hiroaki Tsukamoto , Yohsuke Mitani , Takahiro Kudo , Yoshimitsu Odajima
IPC: H02J7/00 , B60R16/033 , H01M10/44
Abstract: A power storage device includes an input terminal, an output terminal, a first circuit, and a second circuit. The input terminal is to be electrically connected to a power supply. The output terminal is to be electrically connected to a load. The first circuit and the second circuit are electrically connected in parallel. Each of the first circuit and the second circuit are disposed between the input terminal and the output terminal. The first circuit includes a power storage unit and a discharge path that allows a discharge current from the power storage unit to flow toward the output terminal. The second circuit includes a blocking path that prevents the discharge current from flowing toward the input terminal.
-
公开(公告)号：US11881738B2
公开(公告)日：2024-01-23
申请号：US17629365
申请日：2020-07-28
Inventor： Yohsuke Mitani , Takeshi Umeda
IPC: H02J9/06 , H02J7/00 , H02J9/00 , B60R16/033
CPC classification number: H02J9/06 , B60R16/033 , H02J7/0031 , H02J7/0063 , H02J9/002
Abstract: A backup power-supply system according to the present invention includes a detector, a power storage unit, and a controller. The detector is configured to detect an abnormality of a power supply that supplies electric power to loads. The power storage unit is configured to supply electric power to the loads when the detector detects the abnormality of the power supply. The controller is configured to monitor a remaining electric energy remaining in the power storage unit, and impose, when the remaining electric energy of the power storage unit is smaller than a threshold electric energy, a limitation on the loads to which the power storage unit supplies the electric power.
-
公开(公告)号：US12206282B2
公开(公告)日：2025-01-21
申请号：US18015249
申请日：2021-05-18
Inventor： Toshiharu Motofusa , Yohsuke Mitani
Abstract: A backup power supply system supplies power to one or more loads in a situation where a power supply has caused a failure. The backup power supply system includes a plurality of power storage devices and a switching unit. The plurality of power storage devices are charged by the power supply. The switching unit switches electrical connection between the plurality of power storage devices to either a first state where the plurality of power storage devices are connected to the power supply in parallel or a second state where the plurality of power storage devices are connected to each other in series. The switching unit switches the electrical connection to the first state while the plurality of power storage devices are being charged and switches the electrical connection to the second state when the power supply has caused the failure.
-
公开(公告)号：US11987191B2
公开(公告)日：2024-05-21
申请号：US17998651
申请日：2021-05-18
Inventor： Yohsuke Mitani , Masatoshi Nakase
IPC: H02J7/34 , B60R16/033 , H02J9/00
CPC classification number: B60R16/033 , H02J7/345 , H02J9/002 , H02J2207/20
Abstract: A back-up power supply system (1) is configured to supply electric power from an electric storage device (5) to loads (3) when a power supply (2) is defective. The back-up power supply system (1) includes a first voltage conversion circuit (6) configured to convert an output voltage of the electric storage device (5). The loads (3) include a first load (31) and a second load (32). The back-up power supply system (1) is configured to supply power from the electric storage device (5) to the first load (31) not via the voltage conversion circuit (6), and to supply electric power from the electric storage device (5) to the second load (32) via the voltage conversion circuit (6).
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.017 seconds)
