Title:
POWER STORAGE SYSTEM AND ABNORMALITY PREDICTOR DIAGNOSTIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/137553
Kind Code:
A1
Abstract:
Provided is a technology to obtain data for preventing unanticipated halt or the like of a power storage system. This power storage system has a first power storage device to be provided to a construction machine, and an abnormality predictor diagnostic device that makes an abnormality predictor diagnosis with respect to the first power storage device. The power storage system is characterized in that the abnormality predictor diagnostic device: calculates, using operational information of the first power storage device, an actually-measured degradation state which is an index value indicating a degradation state of the first power storage device; calculates, using past operational history information of the first power storage device, an estimated degradation state which is an index value of the same type as that of the actually-measured degradation state; calculates a result of comparison between the actually-measured degradation state and the estimated degradation state of the first power storage device; calculates results of comparisons between the actually-measured degradation state and the estimated degradation state of respective power storage devices provided to a plurality of construction machines other than the aforementioned construction machine; and determines divergences between the comparison results so as to make a diagnosis on the abnormality predictor of the first power storage device.
Inventors:
TAKAHASHI HIROFUMI (JP)
KAWAHARA YOUHEI (JP)
TAKEUCHI KEN (JP)
NAYA ITARU (JP)
TANIGAKI KENTA (JP)
KAWAHARA YOUHEI (JP)
TAKEUCHI KEN (JP)
NAYA ITARU (JP)
TANIGAKI KENTA (JP)
Application Number:
PCT/JP2019/048503
Publication Date:
July 02, 2020
Filing Date:
December 11, 2019
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F9/24; B60L3/00; H01M10/42; H01M10/48; H02J7/00
Foreign References:
| JP2018029430A | 2018-02-22 | |||
| JP2012001933A | 2012-01-05 | |||
| JP2018169161A | 2018-11-01 | |||
| JP2019168451A | 2019-10-03 | |||
| JP2015102396A | 2015-06-04 |
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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