公开(公告)号：US20240413657A1

公开(公告)日：2024-12-12

申请号：US18405187

申请日：2024-01-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: H02J7/00 ,  H01M10/44

Abstract: A regeneration method of an all-solid-state battery includes a step of preparing an all-solid-state battery having a cathode that does not contain copper, and a step of executing overdischarge control of the all-solid-state battery. The overdischarge control is control of mitigating reaction variance that is variance in electrode reaction due to charging and discharging of the all-solid-state battery, by discharging the all-solid-state battery until a potential of the cathode becomes lower than an elution potential of copper.

公开(公告)号：US20210247450A1

公开(公告)日：2021-08-12

申请号：US17162278

申请日：2021-01-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hirotaka ITO ,  Hiroshi YOSHIDA ,  Yoshihiro UCHIDA ,  Tetsuya WATANABE

IPC: G01R31/36 ,  B60L58/12 ,  H01M10/48 ,  H01M10/44 ,  G01R31/382

Abstract: A battery diagnosis apparatus includes an SOC calculator, a ΔSOC obtaining unit, a largest block identification unit, and a diagnosis unit. The SOC calculator calculates an SOC for each parallel cell block included in a battery assembly based on an output from a battery sensor that detects a state of the battery assembly. When charging or discharging of the battery assembly is carried out, the ΔSOC obtaining unit obtains ΔSOC for each parallel cell block. The largest block identification unit identifies a largest block in a diagnosis target. When a degree of deviation between ΔSOC of the largest block and a ΔSOC reference value exceeds a prescribed level, the diagnosis unit determines that abnormality has occurred in the largest block in the diagnosis target.

公开(公告)号：US20210070193A1

公开(公告)日：2021-03-11

申请号：US16992729

申请日：2020-08-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Nobuyuki TANAKA ,  Kazuki KUBO ,  Kimihito NAKAMURA ,  Kenta FUJIMOTO ,  Takayuki OSHINO ,  Yoshihiro UCHIDA ,  Koichi TSUJI

IPC: B60L58/26 ,  B60L58/12 ,  B60L3/00

Abstract: A vehicle includes: an engine; an exhaust pipe through which exhaust gas from the engine is released; a battery pack located near the exhaust pipe; and an ECU that executes, during limp-home traveling of the vehicle, control in which the battery pack is not charged and discharged, and output suppression control in which output of the engine is suppressed. In the output suppression control, when the catalyst temperature is above a threshold value, the ECU suppresses the output of the engine, as compared to when the catalyst temperature is below the threshold value, while maintaining a state in which the engine can output power.

公开(公告)号：US20200259354A1

公开(公告)日：2020-08-13

申请号：US16724546

申请日：2019-12-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshihiro UCHIDA ,  Kiyohito MACHIDA ,  Yuki MORIYA ,  Nobuyuki TANAKA ,  Kazuki KUBO ,  Masaki UCHIYAMA

IPC: H02J7/00

Abstract: An ECU performs a process routine including a step of acquiring a voltage, a current, and a battery temperature, a step of estimating an SOC, a step of performing a parallel gain calculating process, a step of performing an IWin calculating process, a step of performing DWin/DWout calculating process, a step of performing an NWin/NWout calculating process, and a step of setting Win and Wout.

公开(公告)号：US20190198945A1

公开(公告)日：2019-06-27

申请号：US16227768

申请日：2018-12-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kiyohito MACHIDA ,  Yoshihiro UCHIDA ,  Masaki UCHIYAMA

IPC: H01M10/48 ,  H02J7/00 ,  H01M10/46

Abstract: A battery pack includes a plurality of modules connected in series to one another. Each of the plurality of modules includes a plurality of cells connected in parallel to one another. If a first condition and a second condition are satisfied, an ECU diagnoses an abnormality in which a current path of a cell included in any module breaks. The first condition is a condition that the voltage difference between the maximum voltage and the minimum voltage among a plurality of voltage values is less than a reference value before execution of plug-in charging control, each of the plurality of voltage values being detected by a corresponding one of a plurality of voltage sensors. The second condition is a condition that the voltage difference between the maximum voltage and a voltage is more than or equal to the reference value after execution of the plug-in charging control.

公开(公告)号：US20240300298A1

公开(公告)日：2024-09-12

申请号：US18583275

申请日：2024-02-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: B60H1/20 ,  B60L58/10

CPC classification number: B60H1/20 ,  B60L58/10

Abstract: A vehicle on which an all-solid-state battery is mounted includes the all-solid-state battery, and a case that accommodates the all-solid-state battery. The vehicle is configured such that, when gas is generated in the case, a blocking process is executed to separate a vehicle cabin from outside air.

公开(公告)号：US20240003984A1

公开(公告)日：2024-01-04

申请号：US18346254

申请日：2023-07-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Nobuyuki TANAKA ,  Yoshihiro UCHIDA ,  Kenta ONISHI ,  Yuki SUGO ,  Kenta FUJIMOTO ,  Atsushi KATO ,  Hiroshi YOSHIDA ,  Ryota TAKIZAWA

IPC: G01R31/392 ,  H02J7/00 ,  G01R31/382 ,  H01M10/44 ,  B60L53/62

CPC classification number: G01R31/392 ,  H02J7/0049 ,  G01R31/382 ,  H01M10/44 ,  B60L53/62 ,  B60L2240/545

Abstract: A method for inspecting an energy storage device, the method includes: estimating a degree of degradation of the energy storage device; determining, based on the estimated degree of degradation, a measurement condition such that time required to measure a full charge capacity of the energy storage device decreases or increases; and measuring the full charge capacity according to the determined measurement condition.

公开(公告)号：US20210061127A1

公开(公告)日：2021-03-04

申请号：US16933390

申请日：2020-07-20

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

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：US20240361117A1

公开(公告)日：2024-10-31

申请号：US18602107

申请日：2024-03-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: G01B7/16 ,  G06T7/00 ,  H01M10/48

CPC classification number: G01B7/18 ,  G06T7/0002 ,  H01M10/482

Abstract: A battery system includes at least one pack in which an all-solid-state battery cell is sealed, and a sensing unit configured to sense deformation of the at least one pack due to change in internal pressure of the at least one pack.

公开(公告)号：US20240348072A1

公开(公告)日：2024-10-17

申请号：US18637208

申请日：2024-04-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei MATSUOKA ,  Yuko MARUYAMA ,  Yoshihiro UCHIDA ,  Koichi TSUJI ,  Yuki SUGO

IPC: H02J7/00 ,  B60L53/62 ,  B60L58/13 ,  B60L58/16 ,  G01R31/392 ,  H01M10/44

CPC classification number: H02J7/005 ,  B60L53/62 ,  B60L58/13 ,  B60L58/16 ,  G01R31/392 ,  H01M10/44 ,  H02J7/007 ,  H01M2220/20

Abstract: A battery system is configured to estimate a presence or absence of deterioration of a battery. This deterioration is a phenomenon in which an internal resistance of the secondary battery increases due to uneven ion concentration in a non-aqueous electrolyte. The battery system includes a voltage sensor and an ECU. The voltage sensor detects a voltage value of the battery. The ECU is configured to perform a calculation process and an estimation process. The calculation process includes a process of calculating, in accordance with the voltage value, an evaluation value for evaluating a degree of polarization mitigation after charging or discharging of the battery. The estimation process includes a process of estimating the presence or absence of the deterioration in accordance with the evaluation value.