Title:
BATTERY DIAGNOSIS DEVICE, FORKLIFT, CHARGER, BATTERY DIAGNOSIS METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/090632
Kind Code:
A1
Abstract:
This battery diagnosis device is provided with: a first impedance acquisition unit that acquires the impedance of a battery to be diagnosed at a first frequency; a second impedance acquisition unit that acquires the impedance of the battery at a second frequency; and a performance diagnosis unit that diagnoses the performance of the battery on the basis of a difference value between the impedance at the first frequency and the impedance at the second frequency.
Inventors:
KOBAYASHI KATSUAKI (JP)
KIYABU TOSHIYASU (JP)
TAJIMA HIDEHIKO (JP)
KOSHIRO IKUMASA (JP)
KIYABU TOSHIYASU (JP)
TAJIMA HIDEHIKO (JP)
KOSHIRO IKUMASA (JP)
Application Number:
PCT/JP2020/038108
Publication Date:
May 14, 2021
Filing Date:
October 08, 2020
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
H01M10/44; G01R31/389; G01R31/392; H01M10/48; H02J7/00
Foreign References:
| JPH04141966A | 1992-05-15 | |||
| JP2019190939A | 2019-10-31 | |||
| JP6436271B1 | 2018-12-12 | |||
| JPH1082843A | 1998-03-31 | |||
| JPS4728443A | ||||
| JP2006164540A | 2006-06-22 | |||
| JP2018031678A | 2018-03-01 | |||
| JP2018066661A | 2018-04-26 | |||
| JP2014044149A | 2014-03-13 | |||
| US20150226812A1 | 2015-08-13 | |||
| US20120019253A1 | 2012-01-26 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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