Title:
BATTERY CHARACTERISTIC ANALYSIS APPARATUS, BATTERY CHARACTERISTIC MEASUREMENT APPARATUS, AND BATTERY ANALYSIS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/145322
Kind Code:
A1
Abstract:
An advantage of the present disclosure lies in measuring performance of a battery with a simple method. A battery characteristic analysis apparatus 14 acquires, from a damped oscillation circuit 24 which causes damped oscillation of a current which flows in a battery Bj to be analyzed (wherein j is an integer from 1 to n), damped oscillation data for a damped oscillation current of the battery Bj. The battery characteristic analysis apparatus 14 determines a real part of impedance of the battery Bj, or the real part of impedance and an output voltage of the battery Bj, based on the damped oscillation data. The battery characteristic analysis apparatus 14 determines a degree of degradation of the battery Bj based on the real part of impedance of the battery Bj, or the real part of impedance and the output voltage of the battery Bj.
Inventors:
ISHIGAKI MASANORI (JP)
ISHIKAWA KEISUKE (JP)
HAZAMA HIROFUMI (JP)
ISHIKAWA KEISUKE (JP)
HAZAMA HIROFUMI (JP)
Application Number:
PCT/JP2022/047162
Publication Date:
August 03, 2023
Filing Date:
December 21, 2022
Export Citation:
Assignee:
TOYOTA CHUO KENKYUSHO KK (JP)
International Classes:
G01R31/389; G01R31/392
Foreign References:
| CN108614220A | 2018-10-02 | |||
| US20200209319A1 | 2020-07-02 | |||
| CN105676141A | 2016-06-15 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
Download PDF:
Previous Patent: TILTING VEHICLE
Next Patent: CRANK-TYPE PRESS DEVICE AND TERMINAL CRIMPING DEVICE EQUIPPED WITH SAME
Next Patent: CRANK-TYPE PRESS DEVICE AND TERMINAL CRIMPING DEVICE EQUIPPED WITH SAME