Japan, Feb. 24 -- HITACHI ASTEMO LTD has got intellectual property rights for 'BATTERY STATE DETECTION DEVICE AND BATTERY MANAGEMENT SYSTEM.' Other related details are as follows:
Application Number: JP,2022-105462
Category (FI): H01M10/48@P,G01R31/389,H01M10/48,301,G01R31/392
Stage: PROBLEM TO BE SOLVED: To provide a battery state detection device capable of detecting battery internal impedance with more flexibility in terms of timing.SOLUTION: A battery state detection device is provided, comprising a variable signal generation unit provided separately from a battery load to generate a variable signal with a variable frequency and a voltage higher than that of a battery output, and an impedance acquisition unit configured to acquire voltage-current characteristics when the variable signal is applied to a battery to acquire internal impedance of the battery based on the voltage-current characteristics.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: June 30, 2022
Publication Date: Jan. 17, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
