公开(公告)号：US20200298726A1

公开(公告)日：2020-09-24

申请号：US16825643

申请日：2020-03-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Jun SATOH ,  Keiichi MINAMIURA ,  Manabu KATOH

IPC: B60L58/12 ,  B60K6/24 ,  B60K6/28 ,  B60K6/26 ,  H02J7/00

Abstract: A control device of a vehicle integrates an amount of degradation of positive electrode capacity of a storage battery during drive of a first predetermined distance. When an integrated value of the amount of degradation is equal to or larger than a first predetermined value, the control device performs a degradation suppressing control to suppress charging and discharging of the storage battery in a low state of charge range where a state of charge of the storage battery is lower than a predetermined ratio that accelerates degradation of the positive electrode capacity, compared with charging and discharging of the storage battery in the low state of charge range in an ordinary control.

公开(公告)号：US20230152386A1

公开(公告)日：2023-05-18

申请号：US17967372

申请日：2022-10-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kentaro SUZUKI ,  Jun SATOH ,  Koji YAMADA

IPC: G01R31/392

CPC classification number: G01R31/392

Abstract: A deterioration diagnosis apparatus of a battery includes one or more processors. The one or more processors are configured to execute discharging of each of a plurality of cells included in an assembled battery while measuring a voltage of each of the cells, estimate a deterioration degree of each of the cells using voltage data indicating a transition of the voltage of each of the cells from a discharging start voltage to a predetermined discharging end voltage, and end the discharging when voltages of all the cells included in the assembled battery reach the predetermined discharging end voltage. The predetermined discharging end voltage is a cell voltage at which a change degree of the cell voltage per unit discharging amount starts to sharply rise while the cell voltage is dropping due to the discharging.

公开(公告)号：US20210276451A1

公开(公告)日：2021-09-09

申请号：US17183558

申请日：2021-02-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PRIMEARTH EV ENERGY CO., LTD.

Inventor： Takayuki IRIE ,  Jun SATOH ,  Junichi MATSUMOTO ,  Daisuke KOBA ,  Yosuke MUROTA ,  Kazuki NAKANO ,  Suguru MURAKI

IPC: B60L58/13 ,  H01M10/34 ,  H01M10/44 ,  B60L53/62

Abstract: A battery system includes a nickel-metal hydride battery and an ECU that controls charging and discharging of the nickel-metal hydride battery. The ECU calculates a discharge electricity amount showing an integrated value of a current discharged from the nickel-metal hydride battery, and further calculates ΔSOC of the nickel-metal hydride battery in a prescribed time period. The ECU calculates a charge reserve capacity of the nickel-metal hydride battery based on a temperature of the nickel-metal hydride battery, the discharge electricity amount, and the ΔSOC.