公开(公告)号：US20240022089A1

公开(公告)日：2024-01-18

申请号：US18338249

申请日：2023-06-20

申请人： YAZAKI CORPORATION

发明人： Takahiro Syouda

IPC分类号： H02J7/00

CPC分类号： H02J7/0016 ,  H02J7/00712 ,  H02J7/0048

摘要： A storage battery control device controls a storage battery string including storage batteries connected in series and a bypass circuit configured to switch the storage batteries between a bypass state and a connection state. While causing the bypass circuit to switch the storage batteries between the bypass state and the connection state, a process of charging or discharging the storage batteries is executed to decrease a difference between remaining capacities of the storage batteries until completion of the process. And then, the process is executed while causing the bypass circuit to maintain the storage batteries in the connection state, and when the process is switched from charge to discharge or from discharge to charge, a period where a bypass prevention process of preventing the bypass circuit from switching the storage batteries from the connection state to the bypass state is executed is provided.

公开(公告)号：US11843267B2

公开(公告)日：2023-12-12

申请号：US17343151

申请日：2021-06-09

申请人： Yazaki Corporation

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H01M10/44 ,  H02J7/00 ,  H02J7/04

CPC分类号： H02J7/0024 ,  H01M10/44 ,  H02J7/0016 ,  H02J7/0048 ,  H02J7/007182 ,  H02J7/04

摘要： A battery control unit includes a switching unit, a system controller, and a control unit. The switching unit switches between a connection state in which the corresponding battery is discharged and a non-connection state in which the corresponding battery is not discharged. The system controller limits a discharge current flowing through the battery in the connection state so as not to exceed a minimum discharge current limitation value that is smallest among discharge current limitation values. The control unit switches to the non-connection state in order from the battery having the minimum discharge current limitation value before the discharge current limitation unit limits the discharge current. Further, the control unit switches all the batteries to the connection state after the batteries in the connection state becomes one, and then switch the battery to the non-connection state in order from the battery determined to reach a discharge termination state.

公开(公告)号：US11489349B2

公开(公告)日：2022-11-01

申请号：US17155047

申请日：2021-01-21

申请人： YAZAKI CORPORATION

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H02J7/00 ,  H01M50/502 ,  H01M10/44 ,  H01M10/48 ,  H02J7/02

摘要： A battery control unit includes a plurality of switching units, a first controller, and a plurality of bidirectional voltage converters including a ground terminal, a first, and a second input-output terminal. Each of a plurality of battery packs connected in parallel to each other includes a plurality of batteries connected in series with each other. The plurality of switching units are disposed corresponding to the plurality of batteries respectively, and are configured to switch between a connected state where a corresponding battery among the plurality of batteries is connected in series with non-corresponding battery among the plurality of batteries and a non-connected state where the corresponding battery is disconnected from series connection with the non-corresponding battery.

公开(公告)号：US10569656B2

公开(公告)日：2020-02-25

申请号：US15664957

申请日：2017-07-31

申请人： Yazaki Corporation

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： B60L7/18 ,  B60L7/14 ,  B60L15/20

摘要： A regenerative control device is provided with a host ECU configured to set a required amount of wheel regeneration that is an amount of wheel regeneration required for each wheel of a vehicle based on the required regeneration amount that is an amount of regeneration required in regenerative control that converts kinetic energy into electric energy depending on traveling conditions of a vehicle, and a regeneration controller configured to switch a wheel to be regenerative-controlled in a regeneration performance period shorter than a predicted vehicle behavior-appearance period from the start of regeneration in each wheel of the vehicle to the appearance of the behavior of the vehicle, that is, a period predicted based on the required amount of wheel regeneration and a vehicle speed, and control an actual amount of wheel regeneration for each wheel to the required amount of wheel regeneration.

公开(公告)号：US20200028375A1

公开(公告)日：2020-01-23

申请号：US16515657

申请日：2019-07-18

申请人： Yazaki Corporation

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H02J7/00

摘要： A battery system includes a battery circuit group in which a plurality of battery circuits, each including a plurality of battery units including a battery and a switching unit connected in series, are connected in parallel, and a control unit that controls the switching unit. The switching unit switches a state of the battery unit between a first state, in which the battery is connected between a positive electrode end and a negative electrode end of the battery unit, and a second state, in which the positive electrode end and the negative electrode end are connected without the battery. When discharging, the control unit controls the switching unit such that the state of the battery unit including the battery determined to be not fully discharged becomes the first state, and the state of the battery unit including the battery determined to be fully discharged becomes the second state.

公开(公告)号：US20200013997A1

公开(公告)日：2020-01-09

申请号：US16457275

申请日：2019-06-28

申请人： Yazaki Corporation

发明人： Takuya Kato ,  Takahiro Syouda

IPC分类号： H01M2/04

摘要： A battery pack is provided which enables a reduction of a load on the electrodes which occurs with expansion or contraction of the batteries. Multiple batteries have electrode tabs protruding from both ends, and are stacked in a stacking direction orthogonal to a protrusion direction of the electrode tabs. Busbar modules are jointed to the electrode tabs and comprise busbars for connecting the batteries. An aluminum plate is arranged between batteries of the multiple batteries which are adjacent to a center. This aluminum plate and the busbar modules are fixed.

公开(公告)号：US10042005B2

公开(公告)日：2018-08-07

申请号：US15238469

申请日：2016-08-16

申请人： YAZAKI CORPORATION

发明人： Takahiro Syouda ,  Youko Takagi

IPC分类号： G01N27/416 ,  G01R31/36 ,  B60L11/18 ,  H02J7/00

摘要： An internal resistance calculating device includes a charging unit charging a secondary battery, a voltage measuring unit measuring a both-end voltage value of the secondary battery, a capacitor holding a first voltage value predetermined by the both-end voltage value measured by the voltage measuring unit after charging is started, a capacitor holding, as a second voltage value, the both-end voltage value when charge current is changed for a predetermined current value or more within predetermined time after the both-end voltage value become the first voltage value, a current measuring unit measuring a first charge current value when the both-end voltage value become a threshold-value voltage and a second charge current value when the both-end voltage value become the second voltage value, and a μCOM calculating an internal resistance value of the secondary battery based on the first and second voltage values and the first and second charge current values.

公开(公告)号：US12107446B2

公开(公告)日：2024-10-01

申请号：US17382362

申请日：2021-07-22

申请人： YAZAKI CORPORATION

发明人： Takahiro Syouda ,  Chihiro Ono

IPC分类号： H02J7/00

CPC分类号： H02J7/0024 ,  H02J7/0016 ,  H02J7/0019 ,  H02J7/007182

摘要： A charging control device charges a battery device, and a control unit that is configured to control a switch and to control charging of the battery device. The control unit estimates a total voltage when each battery is not bypassed in each of the plurality of storage battery systems, selects the storage battery system having a low voltage among the estimated total voltages, and then repeatedly executes selective charging of charging the selected storage battery system so that an estimated total voltage difference between the storage battery system having the low voltage in the estimated total voltage and the storage battery system having a high voltage in the estimated total voltage is less than a predetermined value.

公开(公告)号：US12034323B2

公开(公告)日：2024-07-09

申请号：US17343188

申请日：2021-06-09

申请人： Yazaki Corporation

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H02J7/00 ,  H02J7/04

CPC分类号： H02J7/0024 ,  H02J7/0016 ,  H02J7/0048 ,  H02J7/007182 ,  H02J7/04

摘要： A battery control unit includes a switching unit and a control unit. The switching unit is provided for each of a plurality of batteries connected to in series to each other, and switches a connection state in which the corresponding battery is discharged and a non-connection state in which the corresponding battery is not discharged. The control unit switches the battery to the non-connection state in order from the battery whose remaining dischargeable capacity reaches a predetermined value. Further, the control unit switches all the batteries to the connection state after the remaining dischargeable capacity of all the batteries reaches the predetermined value, and then switch the battery to the non-connection state in order from the battery determined to reach a discharge termination state.

公开(公告)号：US20230378772A1

公开(公告)日：2023-11-23

申请号：US18300397

申请日：2023-04-14

申请人： YAZAKI CORPORATION

发明人： Takahiro Syouda

IPC分类号： H02J7/00 ,  G01R31/3842 ,  G01R31/392 ,  H01M10/44

CPC分类号： H02J7/0016 ,  G01R31/3842 ,  G01R31/392 ,  H02J7/0048 ,  H02J7/005 ,  H01M10/441

摘要： The present disclosure relates to a storage battery control device, a power storage system, and a storage battery control method. The storage battery control device controls a power storage system including storage battery strings each including storage batteries and connected with each other by a power line, the storage batteries being connected in series, and power converters each provided between the storage battery string and the power line and converting an input and output voltage of the storage battery string. The storage battery control device discharges a target storage battery to a buffer string or an outside of the power storage system to measure a discharge current or a voltage of the target storage battery, and estimates a state of the target storage battery based on the measured discharge current or the measured voltage of the target storage battery.