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公开(公告)号：US11989070B2
公开(公告)日：2024-05-21
申请号：US17793599
申请日：2020-12-28
Inventor： Katsuaki Hamamoto , Masaaki Kuranuki , Ryosuke Nagase
Abstract: An electric movable body transmits a signal including identification information identical to identification information retained in a first power storage pack via near-field communication when the first power storage pack is detached from the electric movable body. A charging device wiredly transmits the identification information received from the electric movable body to a second power storage pack. The second power storage pack transmits via near-field communication a signal including the identification information received from the charging device. The electric movable body collates whether or not the identification information included in the received signal matches the identification information retained in the first power storage pack.
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公开(公告)号：US11945584B2
公开(公告)日：2024-04-02
申请号：US17755324
申请日：2020-10-20
Inventor： Ryosuke Nagase , Mutsuhiko Takeda
IPC: B64C39/02 , B64D27/24 , B64D35/04 , B64D35/08 , H01M10/42 , H01M10/44 , H01M50/204 , H01M50/249 , H02J7/00 , B64U30/20 , B64U50/19
CPC classification number: B64C39/024 , B64D27/24 , B64D35/04 , B64D35/08 , H01M10/425 , H01M10/441 , H01M50/204 , H01M50/249 , H02J7/0019 , H02J7/0063 , B64U30/20 , B64U50/19 , H01M2010/4271 , H01M2220/20 , H02J2207/20
Abstract: A plurality of energy storage packs supply a current to a plurality of motor driver that drive a plurality of motors mounted on moving object, respectively. Sub energy storage pack supplies a current to at least one of a plurality of first current paths connecting the plurality of motor driver and the plurality of energy storage packs, or pulls a current from at least one of the plurality of first current paths. Controller controls the plurality of first switches and the plurality of second switches to adjust capacities between the plurality of energy storage packs.
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公开(公告)号：US12278346B2
公开(公告)日：2025-04-15
申请号：US17907266
申请日：2021-03-18
Inventor： Masaaki Kuranuki , Katsuaki Hamamoto , Ryosuke Nagase
IPC: H01M10/42 , B60L50/64 , B60L53/66 , G01R27/08 , H01M10/0525 , H01M10/46 , H01M10/48 , H01M50/204 , H01M50/249 , H02J7/00 , B62J43/16
Abstract: Controller of power storage pack performs communication for authentication with controller of an electric moving body according to the pattern of a current flowing through a power line in a state where power storage pack is mounted to electric moving body. Controller of power storage pack measures contact resistance between power storage pack and the electric moving body based on voltage of the power line on power storage pack side, voltage of the power line on the electric moving body side received from controller of the electric moving body, and current when communication for authentication is performed according to the pattern of a current flowing through the power line.
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Patent Agency Ranking
公开(公告)号：US12189751B2
公开(公告)日：2025-01-07
申请号：US17758588
申请日：2021-01-06
Inventor： Katsuaki Hamamoto , Masaaki Kuranuki , Ryosuke Nagase
IPC: G06F21/34
Abstract: A first power storage pack wiredly transmits identification information retained in the first power storage pack to a charging device when the first power storage pack is detached from an electric movable body. The charging device wiredly transmits the identification information received from the first power storage pack to a second power storage pack. The controller of the second power storage pack transmits via near-field communication a signal including the identification information received from the charging device. The electric movable body collates whether or not the identification information included in the received signal matches the identification information retained in the first power storage pack.
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公开(公告)号：US12187151B2
公开(公告)日：2025-01-07
申请号：US17758587
申请日：2020-12-28
Inventor： Katsuaki Hamamoto , Masaaki Kuranuki , Ryosuke Nagase
Abstract: A charging device wiredly transmits identification information to a power storage pack after the power storage pack is mounted. The power storage pack transmits via near-field communication a signal including the identification information received from the charging device. The charging device collates whether or not the identification information included in the received signal matches the identification information wiredly transmitted.
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公开(公告)号：US12062932B2
公开(公告)日：2024-08-13
申请号：US17907265
申请日：2021-03-18
Inventor： Masaaki Kuranuki , Katsuaki Hamamoto , Ryosuke Nagase
CPC classification number: H02J7/00308 , B60L50/60 , B60L53/65 , B60L53/80 , H01M10/4221 , H01M10/425 , H01M10/46 , H02J7/00036 , H02J7/0068 , B60L2200/12 , H01M2010/4278 , H01M2220/20
Abstract: Controller (12) of power storage pack (10) communicates with controller (32) of electric moving body (30) in a state where power storage pack (10) is mounted to the electric moving body. Communication wiring (Lc1) connects a node of power line (Lp1) on power source terminal (Tp) side relative to first switch (RYp) and controller (12) of power storage pack (10). Overvoltage protection circuit (19) turns off second switch (SWc) inserted into communication wiring (Lc1) upon detecting an overvoltage of power line (Lp1) during communication between controller (12) of power storage pack (10) and controller (32) of the electric moving body.
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公开(公告)号：US12006049B2
公开(公告)日：2024-06-11
申请号：US17757439
申请日：2020-11-19
Inventor： Ryosuke Nagase , Masaya Ugaji
Abstract: Flying body including body portion and a plurality of propellers radially disposed to be laterally symmetrical from body portion is provided with: a plurality of motors respectively rotating the plurality of propellers; a plurality of power storage packs respectively supplying currents to the plurality of motors; and sub power storage pack connected to the plurality of power storage packs by power wirings, respectively. The same number of motors of the plurality of motors are installed on each of the left and right sides, and the same number of power storage packs of the plurality of power storage packs are installed on each of the left and right sides. Sub power storage pack is installed on a lateral center line of body portion.
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公开(公告)号：US11277011B2
公开(公告)日：2022-03-15
申请号：US16961656
申请日：2019-02-08
Inventor： Ryosuke Nagase , Shinya Nishikawa , Takashi Iida
IPC: H02J7/00 , H02J7/02 , G01R31/396 , G01R31/3835 , B60L58/22 , H01M10/48 , H01M10/42
Abstract: A voltage detector detects a voltage of each cell of a plurality of cells that are series-connected. A plurality of discharge circuits are respectively parallel-connected to the plurality of cells. A controller performs a control to equalize voltages or capacities of the plurality of cells to a target value by controlling discharge time of the plurality of discharge circuits, based on the voltages of the plurality of cells detected by the voltage detector. The controller sets the target value higher as an amount of change in the voltages of the plurality of cells in a predetermined period is larger.
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