公开(公告)号：US20240247990A1

公开(公告)日：2024-07-25

申请号：US18525937

申请日：2023-12-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideki HAGIWARA ,  Hiroshi NAGASE ,  Yasumasa OGUMA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: G01L5/1627 ,  H01M50/105 ,  H01M50/211

CPC classification number: G01L5/1627 ,  H01M50/105 ,  H01M50/211 ,  H01M2300/0068

Abstract: A battery system includes a unit cell including a sulfide-based all-solid-state battery, a battery module in which a plurality of the unit cells is stacked between a pair of restraining members, an intermediate plate disposed between the stacked unit cells, a detection unit configured to detect a load applied to the intermediate plate, and an estimation unit configured to estimate generation of hydrogen sulfide in the unit cell, based on a change in load applied to the intermediate plate.

公开(公告)号：US20210061101A1

公开(公告)日：2021-03-04

申请号：US16937740

申请日：2020-07-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshihiro UCHIDA ,  Nobuyuki TANAKA ,  Kazuki KUBO ,  Junta IZUMI

IPC: B60K35/00 ,  B60Q9/00 ,  B60L58/12

Abstract: In representation processing, when a capacity retention is higher than a threshold value while a warranty condition is satisfied, an ECU has the capacity retention shown in a first manner. When the capacity retention is equal to or lower than the threshold value while the warranty condition is satisfied, the ECU has the capacity retention shown in a second manner.

公开(公告)号：US20200254899A1

公开(公告)日：2020-08-13

申请号：US16752826

申请日：2020-01-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshihiro UCHIDA ,  Junta IZUMI

IPC: B60L58/12 ,  B60L50/60 ,  G01R31/382 ,  G01R31/367 ,  B60L3/00 ,  G01R31/3842

Abstract: A vehicle includes a battery mounted on the vehicle, and an instrument panel. The instrument panel informs, a user of the vehicle, of a capacity retention that is an index representing a state of deterioration of the battery, and an estimate error (capacity estimate error ε) of the capacity retention.

公开(公告)号：US20240413410A1

公开(公告)日：2024-12-12

申请号：US18650608

申请日：2024-04-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideki HAGIWARA ,  Hiroshi NAGASE ,  Yasumasa OGUMA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: H01M10/42 ,  H01M10/48 ,  H02J7/00

Abstract: A battery system includes a battery and an ECU. The ECU executes polarization cancellation control for canceling polarization of the battery and calculation processing for calculating SOC of the battery after the polarization cancellation control. When the polarization cancellation control is executed after the battery is discharged, the polarization cancellation control is charging control for charging the battery. When the polarization cancellation control is executed after the battery is charged, the polarization cancellation control is discharging control for discharging the battery.

公开(公告)号：US20240356133A1

公开(公告)日：2024-10-24

申请号：US18423697

申请日：2024-01-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Shinji NAKANISHI ,  Tetsuya WASEDA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: H01M50/242 ,  H01M50/209

CPC classification number: H01M50/242 ,  H01M50/209

Abstract: The control device executes a process including a step of acquiring a detection value from each surface pressure sensor when charging is in progress, a step of specifying a corresponding partially pressing unit when it is determined that there is a portion where the reaction is uneven, a step of outputting a pressing command, a step of determining whether or not pressing is completed, and a step of outputting a pressing cancel command when it is determined that pressing is completed.

公开(公告)号：US20230294550A1

公开(公告)日：2023-09-21

申请号：US18324309

申请日：2023-05-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshiki SUGINO ,  Yoshihiro UCHIDA ,  Nobuyuki TANAKA ,  Junta IZUMI ,  Kazuki KUBO

IPC: B60L58/12 ,  B60L58/16 ,  H02J7/00 ,  G01R31/36

CPC classification number: B60L58/12 ,  B60L58/16 ,  H02J7/0048 ,  G01R31/3648 ,  B60L2250/16

Abstract: A vehicle includes: an instrument panel; and an ECU that controls the instrument panel so that the instrument panel displays an icon representing a status of a battery. The icon represents one of a first indication and a second indication by an increase or decrease of a scale in a display region of the icon, and the other one of the first indication and the second indication by an amount indicated by a size of a display area of the icon, the first indication representing SOC of the battery, the second indication representing a full charge capacity of the battery.

公开(公告)号：US20220381836A1

公开(公告)日：2022-12-01

申请号：US17661344

申请日：2022-04-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenta ONISHI ,  Kenta FUJIMOTO ,  Yoshihiro UCHIDA ,  Yuki SUGO ,  Ryota TAKIZAWA

IPC: G01R31/382 ,  H01M10/44 ,  H02J7/00 ,  B60W20/10

Abstract: A battery control device includes a processor that is configured to estimate a full charge capacity of a battery based on an amount of current supplied to the battery from a start of charging to an end of charging and voltages of the battery at the start of charging and the end of charging when the battery is charged from a state where a voltage of the battery is below a predetermined start voltage threshold value to a state where the voltage exceeds a predetermined end voltage threshold value, and the battery satisfies a predetermined permission condition.

公开(公告)号：US20240413415A1

公开(公告)日：2024-12-12

申请号：US18637677

申请日：2024-04-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideki HAGIWARA ,  Hiroshi NAGASE ,  Yasumasa OGUMA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: H01M10/48 ,  B60L3/00 ,  G01N33/00 ,  H01M10/615 ,  H01M10/625 ,  H01M50/367

Abstract: A battery system includes a battery unit, a heater unit, and a sensor unit. The battery unit is accommodated in a battery case and includes sulfide-based all-solid-state batteries. The heater unit is configured to heat the battery unit. The sensor unit is configured to measure a hydrogen sulfide gas concentration inside the battery case. The heater unit is started to be driven when a measured value of the sensor unit becomes greater than the first threshold value. After starting the driving of the heater unit, when the measured value becomes greater than the second threshold value that is higher than the first threshold value, a responsive control is executed to deal with generation of the hydrogen sulfide gas from the sulfide-based all-solid-state batteries.

公开(公告)号：US20240356134A1

公开(公告)日：2024-10-24

申请号：US18433583

申请日：2024-02-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Shinji NAKANISHI ,  Tetsuya WASEDA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: H01M50/242 ,  H01M10/48 ,  H01M50/209

CPC classification number: H01M50/242 ,  H01M10/482 ,  H01M50/209

Abstract: The control device executes a process including a step of acquiring a detected value from each surface pressure sensor when charging is in progress, a step of specifying a corresponding partial pressurizing unit when it is determined that there is a reaction uneven portion, a step of outputting a pressurization command, a step of determining whether or not pressurization is completed, and a step of outputting a pressurization release command when it is determined that pressurization is completed.

公开(公告)号：US20240347789A1

公开(公告)日：2024-10-17

申请号：US18425262

申请日：2024-01-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Shinji NAKANISHI ,  Tetsuya WASEDA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: H01M10/42 ,  H01M4/02 ,  H01M4/38 ,  H01M10/0562 ,  H01M10/44

CPC classification number: H01M10/425 ,  H01M4/386 ,  H01M10/0562 ,  H01M10/44 ,  H01M2004/028 ,  H01M2010/4271 ,  H01M2300/0068

Abstract: A battery system includes a control device. The control device is configured to perform a first control and a second control. The first control includes placing an all-solid-state battery in an over-discharge state. The second control includes pressurizing the all-solid-state battery in the over-discharge state. The all-solid-state battery includes an anode layer, a solid electrolyte layer, and a cathode layer, in this order. The cathode layer includes silicon grains. The silicon grains include a clathrate II crystalline phase.