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公开(公告)号：US20240146072A1
公开(公告)日：2024-05-02
申请号：US18380684
申请日：2023-10-17
发明人： Yoshiaki KIKUCHI
IPC分类号： H02J7/00 , H01M10/0525 , H01M10/46 , H01M50/51
CPC分类号： H02J7/0014 , H01M10/0525 , H01M10/46 , H01M50/51 , H02J2207/20
摘要： A power supply system is a power supply system that performs charging and discharging between the power supply system and an external system. The power supply system includes a plurality of battery units and a controller. The plurality of battery units include a plurality of battery packs and a plurality of converters provided corresponding to the plurality of battery packs. The plurality of battery units are connected together in parallel. The controller controls the plurality of converters to charge each of the plurality of battery packs to a fully charged state. For each of the plurality of battery packs, the controller is configured to perform equalization control to equalize voltages of cells included in the battery pack when the battery pack is charged to the fully charged state.
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公开(公告)号：US20240146083A1
公开(公告)日：2024-05-02
申请号：US18380681
申请日：2023-10-17
发明人： Yoshiaki KIKUCHI
IPC分类号： H02J7/00 , H01M10/0525 , H01M10/46
CPC分类号： H02J7/0048 , H01M10/0525 , H01M10/46 , H02J7/0013 , H02J2207/20
摘要： A power supply system is a power supply system that performs charging and discharging between the power supply system and an external system. The power supply system includes a plurality of battery units and a controller. The plurality of battery units include a plurality of battery packs and a plurality of converters provided corresponding to the plurality of battery assemblies, respectively. The controller controls the plurality of battery units. The plurality of battery units are connected together in parallel. The controller controls a converter of the plurality of converters that corresponds to a battery pack of the plurality of battery packs for which a predetermined period has elapsed since the battery pack is charged to a fully charged state, so as to charge the battery pack to the fully charged state.
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公开(公告)号：US20230302910A1
公开(公告)日：2023-09-28
申请号：US18204714
申请日：2023-06-01
发明人： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
CPC分类号： B60L3/0046 , B60L50/66 , B60L2240/545
摘要： A vehicle includes: a battery pack including a secondary battery, a battery sensor configured to detect a state of the secondary battery, and a first control device; and a second control device provided separately from the battery pack, wherein: the first control device is configured to set a power upper limit value indicating an upper limit value of a battery power of the secondary battery by using a detection value of the battery sensor; and the second control device is configured to set a guard value of the upper limit value of the battery power by using a temperature of the secondary battery and set the power upper limit value such that the power upper limit value does not exceed the guard value.
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公开(公告)号：US20230271522A1
公开(公告)日：2023-08-31
申请号：US18086780
申请日：2022-12-22
发明人： Yoshiaki KIKUCHI , Hiroshi YOSHIDA , Akira KIYAMA , Yu SHIMIZU , Kensaku MIYAZAWA , Takayuki OSHINO
IPC分类号： B60L53/62
CPC分类号： B60L53/62
摘要： A vehicle configured to perform external charging for charging an in-vehicle power storage device using electric power supplied from a system power supply outside the vehicle, wherein the vehicle includes a control device and a storage device. The control device is configured to set a command value of a charging current supplied from the system power supply to the power storage device through the charging device during the external charging, and to control the charging current by transmitting the command value to the charging device. The storage device is configured to store a program executed by the control device. The control device calculates an integrated value of the command value when the command value is larger than a threshold value. The control device is configured to execute a reduction process of reducing the command value when the integrated value is large than when the integrated value is small.
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公开(公告)号：US20210188123A1
公开(公告)日：2021-06-24
申请号：US17113486
申请日：2020-12-07
发明人： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
摘要： A vehicle includes a battery pack including a secondary battery, a battery sensor that detects a state of the secondary battery, and a first control device, a second control device provided separately from the battery pack, and a converter. The first control device is configured to use a detection value of the battery sensor to obtain a current upper limit value indicating an upper limit value of an input current of the secondary battery. The second control device is configured to use a power upper limit value indicating an upper limit value of an input power of the secondary battery to control the input power of the secondary battery.
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公开(公告)号：US20240097232A1
公开(公告)日：2024-03-21
申请号：US18221681
申请日：2023-07-13
发明人： Yoshiaki KIKUCHI
IPC分类号： H01M10/63 , H01M10/0525 , H01M10/48 , H01M10/615
CPC分类号： H01M10/63 , H01M10/0525 , H01M10/486 , H01M10/615 , H01M2200/10
摘要： The battery management system includes a plurality of battery units connected in parallel to each other, and a control device that executes temperature control for each battery of the plurality of battery units. The plurality of battery units includes a first battery unit having a LFP cell and a second battery unit having a ternary battery. When the temperature of the battery management system 1 is equal to or lower than the reference temperature, the control device executes the first temperature control so that the temperature of LFP cell is higher than the temperature of the ternary cell.
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公开(公告)号：US20210188117A1
公开(公告)日：2021-06-24
申请号：US17062723
申请日：2020-10-05
发明人： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
摘要： An electrically driven vehicle includes a battery pack including a battery ECU, a gate ECU provided separately from the battery pack, and an HVECU provided separately from the battery pack and the gate ECU and configured to control any one of battery power and battery current of the secondary battery as a control target. The gate ECU relays communication between the battery ECU and the HVECU, and stores, in a ring buffer, history information on information exchanged between the battery ECU and the HVECU.
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公开(公告)号：US20210188094A1
公开(公告)日：2021-06-24
申请号：US17109786
申请日：2020-12-02
发明人： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
摘要： A vehicle includes: a battery pack including a secondary battery, a battery sensor configured to detect a state of the secondary battery, and a first control device; and a second control device provided separately from the battery pack, wherein: the first control device is configured to set a power upper limit value indicating an upper limit value of a battery power of the secondary battery by using a detection value of the battery sensor; and the second control device is configured to set a guard value of the upper limit value of the battery power by using a temperature of the secondary battery and set the power upper limit value such that the power upper limit value does not exceed the guard value.
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公开(公告)号：US20240128788A1
公开(公告)日：2024-04-18
申请号：US18359072
申请日：2023-07-26
发明人： Yoshiaki KIKUCHI
CPC分类号： H02J7/342 , H01M10/425 , H01M10/441 , H01M10/443 , H01M10/482 , H01M10/486 , H02J7/0047 , H02J2207/20
摘要： A power storage system that performs charging and discharging with an external system includes a power converter, a plurality of assembled batteries, and a control device. The control device operates the power converter to supply power from the designated first assembled battery of the plurality of assembled batteries to the designated at least one second assembled battery of the plurality of assembled batteries to completely discharge the first assembled battery. The control device operates the power converter to power the first assembled battery from the at least one second assembled battery to fully charge the first assembled battery. The control device calculates the full charge capacity of the first assembled battery based on the transition from the fully discharged state to the fully charged state.
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公开(公告)号：US20240106247A1
公开(公告)日：2024-03-28
申请号：US18369871
申请日：2023-09-19
发明人： Yoshiaki KIKUCHI
IPC分类号： H02J7/00 , G06F1/26 , H01M10/0525 , H01M10/46 , H01M50/512
CPC分类号： H02J7/00047 , G06F1/266 , H01M10/0525 , H01M10/46 , H01M50/512 , H02J7/00045 , H02J7/0013 , H02J2207/20
摘要： A power storage system includes: a power conversion device to which power is supplied from an external system; and a controller that controls an operation of the power conversion device. First and second battery packs different from each other in type are connected to the power conversion device in parallel. The controller stores a first charge profile for the first battery pack and a second charge profile for the second battery pack. The controller charges the first battery pack by operating the power conversion device based on the first charge profile. The controller charges the second battery pack by operating the power conversion device based on the second charge profile.
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