公开(公告)号：US20250158423A1

公开(公告)日：2025-05-15

申请号：US18822847

申请日：2024-09-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yohei OGAWA ,  Hiroshi YOSHIDA ,  Takashi OGURA ,  Yuki SUGO

IPC: H02J7/00

Abstract: The battery system is a system for equalizing the capacity of each cell included in a battery in which a plurality of cells having a plateau region in a charge-discharge curve are connected in series, and includes an equalization unit for adjusting the capacity of each cell, and an ECU for controlling the charge-discharge of the battery. ECU determines which control method is used according to a predetermined determination condition for determining which of the first control method and the second control method is suitable for equalization in the present situation, and controls the equalization unit.

公开(公告)号：US20250140944A1

公开(公告)日：2025-05-01

申请号：US18889819

申请日：2024-09-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi YOSHIDA ,  Takashi OGURA ,  Yuki SUGO

IPC: H01M10/42 ,  B60L53/80 ,  B60L58/12 ,  B60L58/16 ,  H01M10/48

Abstract: The battery system includes a battery and a control device for estimating an SOC of the battery. When SMR is not connected when the replacement of the battery is detected, SOC is estimated based on SOC-OCV property from the voltage of the unit cell when the battery ECU is activated. When SMR is connected, the SOC estimated from the voltage is corrected using an integrated value of current charged or discharged via SMR, and SOC is estimated.

公开(公告)号：US20190168738A1

公开(公告)日：2019-06-06

申请号：US16129246

申请日：2018-09-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke MORISAKI ,  Takashi OGURA ,  Masahiro KAGAMI ,  Koichiro MUTA

IPC: B60W20/13 ,  B60K6/20 ,  B60W10/06 ,  B60W10/08 ,  G01C21/34

CPC classification number: B60W20/13 ,  B60K6/20 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/12 ,  B60W20/16 ,  B60W30/194 ,  B60W50/0097 ,  B60W2510/246 ,  B60W2510/248 ,  B60W2530/14 ,  B60W2710/244 ,  G01C21/3484

Abstract: A hybrid vehicle includes an engine, a motor, a power storage device, and an electronic control unit. The electronic control unit is configured to limit execution of power storage capacity decreasing control and execution of power storage capacity recovering control when a condition a) and a condition b) are both satisfied than when the condition a) and a condition c) are both satisfied, a) is parking at a predetermined point is predicted b) a temperature of the power storage device is out of a predetermined temperature range, and c) the temperature of the power storage device is within the predetermined temperature range.

公开(公告)号：US20250076398A1

公开(公告)日：2025-03-06

申请号：US18744709

申请日：2024-06-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi YOSHIDA ,  Takashi OGURA ,  Yuki SUGO ,  Koichi NISHINO

IPC: G01R31/388 ,  G01R31/36 ,  G01R31/374 ,  H01M10/44

Abstract: The threshold cumulative value calculation unit calculates a threshold cumulative value. The current cumulating unit cumulates the charging current. When the first current cumulative value, which is the cumulative value from the start of charging, becomes equal to or larger than the threshold cumulative value, the maximum value detecting unit starts detection of the local maximum value of the amount of change in the voltage. The full charge capacity calculation unit calculates a full charge capacity by adding a first current cumulative value, which is a current cumulative value from when the maximum value is detected to when the full charge is detected, to a reference capacity when the maximum value is detected.

公开(公告)号：US20160241054A1

公开(公告)日：2016-08-18

申请号：US15025106

申请日：2014-09-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi MATSUMOTO ,  Takashi OGURA

IPC: H02J7/00 ,  H01M10/48 ,  H01M10/46 ,  H01M10/42 ,  H01M10/0525 ,  H01M10/34

CPC classification number: H02J7/0016 ,  B60L3/0046 ,  B60L3/12 ,  B60L7/12 ,  B60L11/1805 ,  B60L11/1866 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  G01R31/3658 ,  H01M10/0525 ,  H01M10/34 ,  H01M10/425 ,  H01M10/441 ,  H01M10/46 ,  H01M10/48 ,  H01M10/482 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J7/0021 ,  Y02T10/7005 ,  Y02T10/7061

Abstract: A power storage system includes a power storage device and a controller. The controller controls discharge processing based on voltage values of power storage elements. The controller determines an abnormal state according to voltage fluctuation after the voltage values are made uniform. The controller performs first processing when the following conditions i) and ii) are satisfied and performs second processing when the following conditions i) and iii) are satisfied. The condition i) is that the power storage elements are divided into a plurality of groups, each group consists of each power storage stack included in the power storage device. The condition ii) is that the voltage values of the power storage elements are different in each group. The condition iii) is that, in the plurality of groups in each of which the voltage values are made uniform, the voltage values are different among the plurality of groups.

Abstract translation: 蓄电系统包括蓄电装置和控制器。 控制器基于蓄电元件的电压值控制放电处理。 控制器在电压值均匀后根据电压波动确定异常状态。 当满足以下条件i）和ii）时，控制器执行第一处理，并且当满足以下条件i）和iii）时，执行第二处理。 条件i）是将蓄电元件分成多个组，每个组由包括在蓄电装置中的每个蓄电堆构成。 条件ii）是各组中的蓄电元件的电压值不同。 条件iii）是在电压值均匀的多个组中，多个组中的电压值不同。

公开(公告)号：US20170028867A1

公开(公告)日：2017-02-02

申请号：US15211287

申请日：2016-07-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Teruo ISHISHITA ,  Ryo MANO ,  Hiroyuki OBATA ,  Takashi OGURA

IPC: B60L11/18 ,  H02J7/00

CPC classification number: B60L11/1861 ,  H02J7/007 ,  H02J7/0077

Abstract: A power supply system includes a controller. The controller is configured to; a) control charging and discharging of an electrical storage device upon reception of an output of a current sensor and a voltage sensor, b) calculate a control current value by subtracting an offset value from a detected value of the current sensor, c) calculate a first determination result and a second determination result, respectively obtained by determining whether the electrical storage device is being charged or discharged based on the control current value, and based on a change in a remaining amount of charge of the electrical storage device, and d) when the first determination result and the second determination result differ from each other, change the offset value such that the first determination result coincides with the second determination result.

Abstract translation: 电源系统包括控制器。 控制器配置为 a）在接收到电流传感器和电压传感器的输出时控制蓄电装置的充电和放电，b）通过从当前传感器的检测值减去偏移值来计算控制电流值，c） 第一确定结果和第二确定结果，分别通过基于控制电流值确定蓄电装置是充电还是放电而获得，并且基于蓄电装置的剩余电量的变化，以及d） 当第一确定结果和第二确定结果彼此不同时，改变偏移值，使得第一确定结果与第二确定结果一致。

公开(公告)号：US20160254683A1

公开(公告)日：2016-09-01

申请号：US15029274

申请日：2014-10-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi MATSUMOTO ,  Takashi OGURA

IPC: H02J7/00

CPC classification number: H02J7/0016 ,  B60L11/1862 ,  B60L11/1866 ,  B60L2240/547 ,  B60L2240/549 ,  H02J7/0014 ,  H02J7/0021 ,  H02J7/0081 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7055 ,  Y02T10/7061

Abstract: An electric storage system includes plural electric storage elements, a voltage detection circuit, a discharging circuit, and a controller. The controller is configured to: (a) control an operation of the discharging circuit on the basis of the voltage values detected by the voltage detecting circuit, (b) determine a first reference voltage value indicating a lowest voltage value from the voltage values of the plurality of electric storage elements, (c) discharge the electric storage element indicating the voltage value of which a voltage difference from the first reference voltage value is greater than a first threshold value, and (d) set the first threshold value to a smaller value as the first reference voltage value becomes lower.

Abstract translation: 电气存储系统包括多个蓄电元件，电压检测电路，放电电路和控制器。 控制器被配置为：（a）基于由电压检测电路检测的电压值来控制放电电路的操作，（b）根据电压值的电压值确定表示最低电压值的第一参考电压值 多个蓄电元件，（c）对表示与第一基准电压值的电压差大于第一阈值的电压值的蓄电元件进行放电，（d）将第一阈值设定为较小的值 因为第一参考电压值变低。