Title:
METHOD FOR MEASURING ENTROPY OF BATTERY USING KALMAN FILTER
Document Type and Number:
WIPO Patent Application WO/2019/066278
Kind Code:
A1
Abstract:
According to a method of the present invention, a Kalman filter unit comprises: a first Kalman filter that performs a filter operation in accordance with changes in the state of charge of a battery; and a second Kalman filter that performs a filter operation according to changes in the number of uses of the battery, wherein the first Kalman filter, in a state where the first Kalman filter has received a plurality of entropy values including an actual entropy value and an expected entropy value, on the basis of changing state of charge of the battery, outputs a corrected actual entropy change rate, at the same time that the first Kalman filter is repeatedly operated, and the second Kalman filter periodically updates an entropy model, in a state where the second Kalman filter has received both the actual entropy change rate of the first Kalman filter and an expected aging entropy change rate reflecting aging due to an increase in the number of uses of the battery, and the first Kalman filter tracks an entropy change by means of information about changes in the state of charge of the battery supplied from the entropy model.
Inventors:
LEE SANG GUG (KR)
GUILLAUME THENAISIE (KR)
HAN SEOK KYUN (KR)
GUILLAUME THENAISIE (KR)
HAN SEOK KYUN (KR)
Application Number:
PCT/KR2018/010233
Publication Date:
April 04, 2019
Filing Date:
September 03, 2018
Export Citation:
Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
G01R31/36; G01R31/00
Foreign References:
| KR20170059208A | 2017-05-30 | |||
| JP2011113688A | 2011-06-09 | |||
| KR20160002336A | 2016-01-07 | |||
| KR20170093482A | 2017-08-16 | |||
| JP2007517190A | 2007-06-28 |
Attorney, Agent or Firm:
JYK IP LAW FIRM (KR)
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