DEVICE AND METHOD FOR ESTIMATING REMAINING LIFE OF BATTERY

Title:

DEVICE AND METHOD FOR ESTIMATING REMAINING LIFE OF BATTERY

Document Type and Number:

WIPO Patent Application WO/1997/020225

Kind Code:

A1

Abstract:

A device for estimating the remaining life of a battery which supplies stored electricity to an electric device is provided with a storage section where the relation between the reference cumulative sum of discharge voltage drops from the start of the battery discharge and the reference remaining life value, a discharge voltage drop cumulating section which cumulates the discharge voltage drops from the start of the battery discharge, and a remaining life estimating section which estimates the remaining life of the battery from the actual cumulative sum of the discharge voltage drops and the reference cumulative sum in the storage means.

Inventors:

YOSHIKAWA TETSUO (JP)
FUJII HIROSHI (JP)
KISO SHIGEMITSU (JP)

Application Number:

PCT/JP1995/002424

Publication Date:

June 05, 1997

Filing Date:

November 29, 1995

Export Citation:

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Assignee:

OMRON TATEISI ELECTRONICS CO (JP)
YOSHIKAWA TETSUO (JP)
FUJII HIROSHI (JP)
KISO SHIGEMITSU (JP)

International Classes:

G01R31/36; (IPC1-7): G01R31/36; H01M10/48

Foreign References:

JPS56148075A	1981-11-17
JPH0488801A	1992-03-23
JPH06186310A	1994-07-08
JPH05297082A	1993-11-12
JPH0277668A	1990-03-16
JPH06281708A	1994-10-07
JPH03158781A	1991-07-08
JPH06242192A	1994-09-02

Other References: