CA2001776A1 - Cognition device for battery residual capacity - Google Patents

Cognition device for battery residual capacity

Info

Publication number
CA2001776A1
CA2001776A1 CA2001776A CA2001776A CA2001776A1 CA 2001776 A1 CA2001776 A1 CA 2001776A1 CA 2001776 A CA2001776 A CA 2001776A CA 2001776 A CA2001776 A CA 2001776A CA 2001776 A1 CA2001776 A1 CA 2001776A1
Authority
CA
Canada
Prior art keywords
battery
residual capacity
battery residual
information
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2001776A
Other languages
French (fr)
Other versions
CA2001776C (en
Inventor
Yoshio Toko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CA2001776A1 publication Critical patent/CA2001776A1/en
Application granted granted Critical
Publication of CA2001776C publication Critical patent/CA2001776C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S320/00—Electricity: battery or capacitor charging or discharging
    • Y10S320/18—Indicator or display
    • Y10S320/19—Charger status, e.g. voltmeter

Abstract

In a cognition device for battery residual capacity, battery voltage information and battery ambient temperature information are input to a microprocessor through an A/D converter. In the microprocessor, the voltage information is corrected with load information; the data conforming to the ambient temperature information are read out of the battery discharge characteristic data which are previously stored in memory, and the readout data are compared with the corrected voltage information so that the battery residual capacity can be computed from the result of the above comparison data. In this arrangement, it is therefore possible to accurately recognize battery residual capacity at an arbitrary point in time.
CA002001776A 1989-03-31 1989-10-30 Cognition device for battery residual capacity Expired - Fee Related CA2001776C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1082866A JPH07120536B2 (en) 1989-03-31 1989-03-31 Battery level recognition device
JP82866/89 1989-03-31

Publications (2)

Publication Number Publication Date
CA2001776A1 true CA2001776A1 (en) 1990-09-30
CA2001776C CA2001776C (en) 1997-03-04

Family

ID=13786248

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002001776A Expired - Fee Related CA2001776C (en) 1989-03-31 1989-10-30 Cognition device for battery residual capacity

Country Status (6)

Country Link
US (1) US5434495A (en)
JP (1) JPH07120536B2 (en)
AU (1) AU613806B2 (en)
CA (1) CA2001776C (en)
FR (1) FR2645352B1 (en)
GB (1) GB2232495B (en)

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Also Published As

Publication number Publication date
JPH02262278A (en) 1990-10-25
FR2645352B1 (en) 1996-06-07
US5434495A (en) 1995-07-18
JPH07120536B2 (en) 1995-12-20
AU4388289A (en) 1990-10-04
FR2645352A1 (en) 1990-10-05
GB8924754D0 (en) 1989-12-20
GB2232495A (en) 1990-12-12
AU613806B2 (en) 1991-08-08
CA2001776C (en) 1997-03-04
GB2232495B (en) 1993-04-07

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