US 2018/0024199 A1 · DEVICE AND METHOD FOR ESTIMATING STATE OF BATTERY

Abstract

The present invention relates to an apparatus and a method for estimating a state of a battery, and more particularly, an apparatus for estimating a state of a battery includes: a first SOC estimating unit estimating a first state of charging (SOC) of the battery based on open circuit voltage and a temperature of the battery; a first SOH estimating unit estimating a first state of health of the battery based on the first SOC and the current of the battery; and a second SOC estimating unit estimating a second SOC of the battery based on the first SOH, charging/discharging voltage, the temperature, and the current of the battery or estimating the second SOC of the battery based on the charging/discharging voltage, the temperature, and the current of the battery.

Claims13

Dependent claims

An apparatus for estimating a state of a battery, the apparatus comprising:

a first SOC estimating unit estimating a first state of charging (SOC) of the battery based on open circuit voltage (OCV) and a temperature of the battery;
a first SOH estimating unit estimating a first state of health (SOH) of the battery based on the first SOC and current of the battery;
and
a second SOC estimating unit estimating a second SOC of the battery based on the first SOH, charging/discharging voltage, the temperature, and the current of the battery or estimating the second SOC of the battery based on the charging/discharging voltage, the temperature, and the current of the battery.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/541,613Filed 28 Jan 2016

Priority

KR 10-2015-001344828 Jan 2015

Published

25 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01R 31/367
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…
G01R 31/3842
Arrangements for monitoring battery or accumulator variables, e.g. SoC: combining voltage and current measurements
G01R 31/28
Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by…
G01R 31/2812
Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing: checking for open circuits or shorts, e.g.…

Device and method for estimating state of battery

Life of this patent

Device and method for estimating state of battery

Life of this patent

Abstract

Claims13