Title:
APPARATUS AND METHOD FOR ESTIMATING BATTERY RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2019/078478
Kind Code:
A1
Abstract:
An apparatus for estimating a battery resistance, according to the present invention, comprises: a sensing unit configured to respectively measure the voltage, current, and temperature of a battery; and a processor operably coupled to the sensing unit, wherein the processor can calculate a measurement resistance of the battery by using the voltage and the current of the battery, determine whether an operating state of the battery is a resistance compensation condition, compensate for the measurement resistance by using a resistance increase/decrease rate of a BOL resistor of the battery according to a charging/discharging rate when the operating state of the battery is the resistance compensation condition, and determine the compensated measurement resistance to be the resistance of the battery.
Inventors:
LEE BOM-JIN (KR)
Application Number:
PCT/KR2018/010006
Publication Date:
April 25, 2019
Filing Date:
August 29, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
G01R31/36
Domestic Patent References:
| WO2016121151A1 | 2016-08-04 |
Foreign References:
| JP2016100288A | 2016-05-30 | |||
| KR100756837B1 | 2007-09-07 | |||
| JP6026120B2 | 2016-11-16 | |||
| KR101763502B1 | 2017-07-31 | |||
| KR20170136782A | 2017-12-12 |
Other References:
See also references of EP 3647804A4
Attorney, Agent or Firm:
PHIL ONZI INTL PATENT LAW FIRM (KR)
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