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公开(公告)号：US20190204388A1
公开(公告)日：2019-07-04
申请号：US16326314
申请日：2017-09-04
发明人： KATSUAKI HAMAMOTO
IPC分类号： G01R31/327 , H02H7/18 , H01M10/44 , H03K5/24 , G01R19/165
CPC分类号： G01R31/3275 , G01R19/16528 , H01M10/44 , H01M10/441 , H01M10/48 , H02H7/00 , H02H7/18 , H02J7/00 , H03K5/24
摘要： In a power storage system, a first switch is connected between a first node and a second node. The first node is connected to a positive terminal of a power storage unit, and the second node is connected to a positive terminal of a load. A second switch is connected between a third node and a fourth node. The third node is connected to a negative terminal of the power storage unit, and the fourth node is connected to a negative terminal of the load. A first comparator circuit compares a first voltage based on a voltage between the first and fourth nodes with a first reference voltage. A second comparator circuit compares a second voltage based on a voltage between the second and third nodes with a second reference voltage.
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公开(公告)号：US20230155401A1
公开(公告)日：2023-05-18
申请号：US17907265
申请日：2021-03-18
CPC分类号： H02J7/00308 , H02J7/00036 , H02J7/0068 , B60L50/60 , B60L53/80 , B60L53/65 , H01M10/425 , H01M10/4221 , H01M10/46 , B60L2200/12 , H01M2220/20 , H01M2010/4278
摘要： 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：US20200044465A1
公开(公告)日：2020-02-06
申请号：US16601909
申请日：2019-10-15
IPC分类号： H02J7/00
摘要： A plurality of controlling circuits control a plurality of respective shutdown switches to turn ON/OFF. A first signal system transmits, in a direction from one end of the plurality of controlling circuits to the other end of the plurality of controlling circuits, a significant signal during a normal operation and a non-significant signal when the operation needs to be stopped. The second signal system transmits, in a direction from the other end of the plurality of controlling circuits to the one end of the plurality of controlling circuits, a significant signal during the normal operation and a non-significant signal when the operation needs to be stopped. The other end of the plurality of controlling circuits transmits the non-significant signal through second signal system when a signal received through first signal system is the non-significant signal.
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公开(公告)号：US20240349043A1
公开(公告)日：2024-10-17
申请号：US18683290
申请日：2022-07-20
IPC分类号： H04W12/04
CPC分类号： H04W12/04
摘要： In a power storage pack, a power storage unit supplies electric power to an electric mobile body. A wireless communication unit performs short-range wireless communication. A notification unit presents, to a user of a mobile terminal device, a tentative notification of a verification code that is to be used in the process of exchanging an encryption key that is to be used for the short-range wireless communication with the mobile terminal device. The notification unit may include a remaining capacity display for the power storage unit.
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公开(公告)号：US20230095740A1
公开(公告)日：2023-03-30
申请号：US17907266
申请日：2021-03-18
IPC分类号： H01M10/42 , H01M50/204 , H01M50/249 , H01M10/46 , H01M10/48 , H01M10/0525 , H02J7/00 , B60L50/64 , B60L53/66 , G01R27/08
摘要： 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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公开(公告)号：US20230046158A1
公开(公告)日：2023-02-16
申请号：US17758587
申请日：2020-12-28
摘要： 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：US20240349054A1
公开(公告)日：2024-10-17
申请号：US18683294
申请日：2022-07-20
IPC分类号： H04W12/08 , B60L53/80 , H04W12/0471
CPC分类号： H04W12/08 , B60L53/80 , H04W12/0471 , B60L2200/12
摘要： In an electric mobile vehicle to which a power storage pack is attached, a controller obtains, from the power storage pack via wired or wireless communication, a verification code that is to be used in a process of exchanging an encryption key that is to be used for short-range wireless communication between the power storage pack and a portable terminal device. A notification unit presents, to a user of the portable terminal device, a tentative notification of the verification code obtained from the power storage pack.
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公开(公告)号：US20240347790A1
公开(公告)日：2024-10-17
申请号：US18682145
申请日：2022-07-20
IPC分类号： H01M10/42 , B60L15/20 , B62M6/90 , H01M50/249 , H01M50/296 , H02P23/00 , H04W12/06
CPC分类号： H01M10/425 , H01M10/4221 , H01M50/249 , H01M50/296 , H02P23/00 , H04W12/06 , B60L15/20 , B62M6/90 , H01M2010/4278 , H01M2220/20
摘要： In a power storage pack, a power storage unit feeds electric power to an electric moving body. A controller superimposes a current pattern representing identification information of the power storage pack on electric power to be supplied to electric moving body. The controller generates a current pattern with current values of a plurality of levels other than zero level. The controller may superimpose a current pattern on electric power supplied to an electric moving body through a precharge circuit.
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公开(公告)号：US20230050076A1
公开(公告)日：2023-02-16
申请号：US17758588
申请日：2021-01-06
IPC分类号： G06F21/34
摘要： 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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