Toyota Jidosha Kabushiki Kaisha

Ryota Takizawa

Yuki Sugo

Nobuyuki Tanaka

Yoshihiro Uchida

Kenta Onishi

Kenta Fujimoto

Hiroki Nagai

Hiroshi Yoshida

Shunya Kobayashi

Takahiro Noguchi

Kentaro Suzuki

Yoshiki Sugino

Daisuke Okanishi

Atsushi Kato

Ryo Inoue

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.

Method for inspecting energy storage device, non-transitory storage medium, and computer device

A battery control device includes a processor that is configured to estimate a full charge capacity of a battery based on an amount of current supplied to the battery from a start of charging to an end of charging and voltages of the battery at the start of charging and the end of charging when the battery is charged from a state where a voltage of the battery is below a predetermined start voltage threshold value to a state where the voltage exceeds a predetermined end voltage threshold value, and the battery satisfies a predetermined permission condition.

Battery control device

The battery system includes a secondary battery, a voltage sensor, a current sensor, a temperature sensor, and a processor. The processor is configured to calculate a polarization overvoltage by subtracting a voltage drop amount caused by a DC resistance and a reactive resistance of the secondary battery determined in accordance with a temperature and an SOC of the secondary battery from a voltage difference between OCV and CCV of the secondary battery.

Battery system, vehicle including the same, and method for monitoring secondary battery

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Toyota, Japan

Ryota Takizawa