US 2013/0154577 A1 · Full Charge Sensing Apparatus And Full Charge Sensing Method

Abstract

A full charge sensing apparatus for sensing a fully charged state of a secondary battery based on an equivalent circuit model of the secondary battery includes a measuring unit that measures a voltage and a current during charging of the secondary battery, a learning unit that performs a learning process on a plurality of parameters in the equivalent circuit model using a result of measurement of the measuring unit, and a determining unit that determines that the secondary battery is in a fully charged state in a case where, among the parameters on which the learning process has been performed by the learning unit, a parameter corresponding to a reaction resistance of the secondary battery is greater than a predetermined threshold.

Claims13

Dependent claims

A full charge sensing apparatus for sensing a fully charged state of a secondary battery based on an equivalent circuit model of the secondary battery, the apparatus comprising:

a measuring unit that measures a voltage and a current during charging of the secondary battery;
a learning unit that performs a learning process on a plurality of parameters in the equivalent circuit model using a result of measurement of the measuring unit;
and
a determining unit that determines that the secondary battery is in a fully charged state in a case where, among the parameters on which the learning process has been performed by the learning unit, a parameter corresponding to a reaction resistance of the secondary battery is greater than a predetermined threshold.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/769,636Filed 18 Feb 2013

Priority

JP 201028356420 Dec 2010

Published

20 Jun 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

H01M 10/425
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: structural combination with electronic…
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
H02J 7/00
Circuit arrangements for charging or discharging batteries or for supplying loads from

Full Charge Sensing Apparatus And Full Charge Sensing Method

Life of this patent

Full Charge Sensing Apparatus And Full Charge Sensing Method

Life of this patent

Abstract

Claims13