公开(公告)号：US20240192277A1

公开(公告)日：2024-06-13

申请号：US18494457

申请日：2023-10-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei MATSUOKA

IPC: G01R31/374 ,  G01R31/3835 ,  H01M10/42 ,  H01M10/48 ,  H01M50/209

CPC classification number: G01R31/374 ,  G01R31/3835 ,  H01M10/425 ,  H01M10/482 ,  H01M10/486 ,  H01M50/209 ,  B60L58/10

Abstract: A battery ECU is a system that determines a battery assembly that stores power used for running a vehicle and that is mounted on the vehicle in a replaceable state, the system comprising: a processor; a memory that stores a genuine product characteristic that is a temperature change characteristic of a genuine product, the temperature change characteristic being a characteristic of an index which changes with temperature of the battery assembly and when not being charged or discharged; and a sensor that acquires a determination target characteristic that is a temperature change characteristic of the index of the battery assembly after replacement mounted on the vehicle when not being charged or discharged. The processor compares the determination target characteristic acquired by the sensor with the genuine product characteristic stored in the memory, and determines whether the battery assembly mounted on the vehicle is the genuine product from a comparison result.

公开(公告)号：US20170250543A1

公开(公告)日：2017-08-31

申请号：US15439171

申请日：2017-02-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryo KANADA ,  Shohei MATSUOKA

IPC: H02J7/00 ,  H01M10/0525 ,  H01M10/48 ,  H01M10/44

CPC classification number: H02J7/007 ,  H01M10/0525 ,  H01M10/443 ,  H01M10/48 ,  H01M10/484 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J7/0029 ,  H02J7/0042 ,  H02J7/0047 ,  H02J7/0091 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A secondary battery system includes a battery having an electrode body impregnated with an electrolyte containing lithium ions; and an ECU configured to permit charge and discharge of the battery when battery temperature is equal to or more than a threshold temperature and to restrict the charge and discharge of the battery when the battery temperature is less than the threshold temperature. The ECU is configured to obtain a value related to minimum concentration of the lithium ions (minimum salt concentration) caused by a deviation of concentration distribution of the lithium ions in the electrode body, and to set the threshold temperature to be higher as the related value representing the minimum salt concentration becomes lower.

公开(公告)号：US20250042304A1

公开(公告)日：2025-02-06

申请号：US18626521

申请日：2024-04-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei MATSUOKA

IPC: B60L58/26 ,  B60L58/16

Abstract: The vehicle control system according to the present disclosure includes: a data collection unit that collects data related to travel characteristics of each of a plurality of vehicles; an analysis unit that analyzes travel characteristics common to vehicles belonging to at least one of a predetermined area and a predetermined vehicle type among the plurality of vehicles using the collected data; and a control unit that causes each of the vehicles belonging to at least one of the predetermined area and the predetermined vehicle type among the plurality of vehicles to apply common setting contents related to the vehicle equipment based on an analysis result by the analysis unit.

公开(公告)号：US20240175934A1

公开(公告)日：2024-05-30

申请号：US18487209

申请日：2023-10-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei MATSUOKA

IPC: G01R31/392 ,  G01R31/378 ,  H01M10/44

CPC classification number: G01R31/392 ,  G01R31/378 ,  H01M10/448 ,  H01M10/0525

Abstract: A control device executes processing including: executing first elimination processing when there is a history of addition of degradation indicator values ΣD and also when degradation indicator value ΣD is larger than a first threshold value TH1; measuring a characteristic value of a cell; executing second elimination processing; determining reusability when the characteristic value is within an allowable range; determining unreusability when the characteristic value is out of the allowable range; and executing the second elimination processing when degradation indicator value ΣD is first threshold value TH1 or less.

公开(公告)号：US20230226916A1

公开(公告)日：2023-07-20

申请号：US18081896

申请日：2022-12-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei MATSUOKA

IPC: B60L3/00 ,  B60L58/18 ,  H01M10/42

CPC classification number: B60L3/0046 ,  B60L58/18 ,  H01M10/425 ,  G01B7/18

Abstract: A diagnostic system for a secondary battery includes a ripple current circuit configured to apply a ripple current of a predetermined frequency to the secondary battery, a strain gauge configured to acquire strain of the secondary battery in association with the application of the ripple current of the predetermined frequency, and an electronic control unit configured to diagnose whether or not the secondary battery is a regular product.

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.

公开(公告)号：US20230249572A1

公开(公告)日：2023-08-10

申请号：US18057297

申请日：2022-11-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuko MARUYAMA ,  Shohei MATSUOKA

IPC: B60L53/65 ,  G07C5/08 ,  B60L50/64 ,  H01M10/48 ,  H01M10/42 ,  H01M10/44

CPC classification number: B60L53/65 ,  B60L50/64 ,  G07C5/0808 ,  G07C5/0816 ,  H01M10/441 ,  H01M10/482 ,  H01M10/4257 ,  H01M2220/20

Abstract: A diagnostic system for a battery module including a plurality of electric cells includes a displacement detector configured to detect a displacement of at least one of the electric cells during charging, and an electronic control unit configured to determine whether the battery module is a genuine product. The electronic control unit is configured to determine whether the battery module is the genuine product based on the displacement detected by the displacement detector.

公开(公告)号：US20250042303A1

公开(公告)日：2025-02-06

申请号：US18623261

申请日：2024-04-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei MATSUOKA

IPC: B60L58/26 ,  B60L58/16

Abstract: The vehicle control system according to the present disclosure includes a data collection unit that collects data related to driving characteristics of a vehicle by a user, an analysis unit that analyzes a burden on a battery that contributes to degradation of a battery mounted on the vehicle, using the collected data, and a control unit that cools the battery with a cooling intensity corresponding to an analysis result. Accordingly, the vehicle control system according to the present disclosure can effectively prevent or reduce degradation of the battery.