公开(公告)号：US20240326647A1

公开(公告)日：2024-10-03

申请号：US18425230

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: B60L58/12 ,  B60L50/60 ,  H01M10/44 ,  H01M10/46

CPC classification number: B60L58/12 ,  B60L50/60 ,  H01M10/44 ,  H01M10/46 ,  B60L2240/16 ,  B60L2240/18 ,  H01M2220/20

Abstract: The electrified vehicle includes an all-solid-state battery in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are stacked in the front-rear direction (predetermined direction) of the electrified vehicle. The electrified vehicle also includes an acceleration sensor that detects a first acceleration in a direction perpendicular to the longitudinal direction and a second acceleration in the longitudinal direction. In an electrified vehicle, charging and discharging of the all-solid-state battery is prohibited when the first acceleration exceeds the first reference value, and the all-solid-state battery is prohibited until the second acceleration exceeds a second reference value that is larger than the first reference value, charging/discharging is allowed.

公开(公告)号：US20230118921A1

公开(公告)日：2023-04-20

申请号：US17820021

申请日：2022-08-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsubasa MIGITA ,  Yoshihiro UCHIDA ,  Hiroshi YOSHIDA

IPC: G01R31/3835 ,  H02J7/35 ,  H01M10/48 ,  H02J7/00 ,  B60L50/60

Abstract: A monitoring device for a battery that supplies electric power to a traction motor of a vehicle includes a sensor that detects a voltage of a battery cell of the battery, and a processing circuit that executes abnormality detection processing for detecting an abnormality in the battery, based on a detected voltage value that is detected by the sensor. The processing circuit executes processing for identifying a first elapsed time from a main switch of the vehicle being turned off until charging or discharging is started between the battery and predetermined on-board equipment, processing for identifying a second elapsed time from starting of the charging or discharging between the battery and the on-board equipment to a current point in time, and the abnormality detection processing when a total time of the first elapsed time and the second elapsed time reaches a predetermined threshold value.

公开(公告)号：US20200303787A1

公开(公告)日：2020-09-24

申请号：US16768376

申请日：2018-11-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Kiyohito MACHIDA ,  Hiroki TASHIRO ,  Yoshihiro UCHIDA ,  Nobuyuki TANAKA ,  Masaki UCHIYAMA

IPC: H01M10/44 ,  B60L58/12 ,  B60L58/21 ,  H01M10/42 ,  H01M10/48 ,  G01R31/389

Abstract: A secondary battery system includes an assembled battery that includes a plurality of blocks that are connected in series to one another. Each of the plurality of the blocks includes same number of cells that are connected in parallel to one another. A control device is configured to calculate an internal resistance ratio and a protection current. The internal resistance ratio is a value obtained by dividing the higher one of internal resistances by the lower one of the internal resistances of two of the plurality of the blocks. The protection current is a value obtained by multiplying the internal resistance ratio by a current value of the assembled battery detected by a current sensor. The control device is configured to perform the charge-discharge control based on the protection current.

公开(公告)号：US20190221898A1

公开(公告)日：2019-07-18

申请号：US16245834

申请日：2019-01-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Kiyohito MACHIDA ,  Yoshihiro UCHIDA ,  Masaki UCHIYAMA

IPC: H01M10/48 ,  H01M10/613 ,  G01R19/02 ,  G01R31/3842 ,  H01M10/42

Abstract: An ECU performs a process including the steps of: acquiring a lowest temperature TBmin and a temperature TC of cooling air; acquiring a fan airflow volume; setting a cooling coefficient; calculating a resistance value Rtmin; calculating a root-mean-square value of a current; setting TBoffset1; calculating a resistance value Rtmax; calculating a temperature index Ftmax; calculating a temperature index Ftmin; calculating an evaluation function ΔF; calculating a maximum current correction gain G; and calculating a maximum current value Imax.