IMPEDANCE CALCULATION DEVICE AND CELL MANAGEMENT SYSTEM

Japanese Patent JP2022158510

A

To provide an impedance calculation device with which it is possible to calculate an impedance of a cell with good accuracy.SOLUTION: There is provided an impedance calculation device 60 applied to a power supply system 10 equipped with a storage cell 40, for applying an AC signal to the storage cell and calculating an impedance of the storage cell in a prescribed impedance calculation period. The impedance calculation device 60 comprises: an error calculation unit for applying an AC signal of a defined frequency such that an imaginary component of impedance of the storage cell becomes a defined value and calculating an impedance error of the storage cell in an error calculation period that is different from the impedance calculation period; an impedance calculation unit for calculating the impedance of the storage cell in the impedance calculation period; and a correction unit for correcting the impedance of the storage cell having been calculated by the impedance calculation unit, on the basis of the impedance error.SELECTED DRAWING: Figure 1

WO/2022/216128	FINE-PITCH SEMICONDUCTOR INSPECTION DEVICE AND FINE-PITCH SEMICONDUCTOR INSPECTION METHOD
JPH08152446	SURFACE RESISTANCE MEASURING APPARATUS AND ITS ROTARY HEAD

HORI TETSUYA
KITAGAWA MASAAKI

JP2021063473A

October 17, 2022

April 02, 2021

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SOKEN INC
DENSO CORP

G01R27/02; G01R31/382; G01R31/385; G01R31/389; H01M10/44; H01M10/48

Yamada Tsuyoshi
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita

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