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：US20250138099A1

公开(公告)日：2025-05-01

申请号：US18777793

申请日：2024-07-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi YOSHIDA ,  Takashi Ogura ,  Yuki Sugo

IPC: G01R31/3835 ,  B60L58/12

Abstract: The battery system includes a battery and a control device for estimating an SOC of the battery. SOC-OCV properties of the cell have a voltage-flat area. When the control device is activated for the first time, the control device estimates SOC of the cell based on SOC-OCV properties. At this time, when the voltage of the battery is in the voltage flat region (Va≤VB≤Vb), S1 that is the intermediate value of the voltage flat region a is estimated to be SOC of the battery.

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.