NO971841L - Method of monitoring battery operation - Google Patents

Method of monitoring battery operation

Info

Publication number
NO971841L
NO971841L NO971841A NO971841A NO971841L NO 971841 L NO971841 L NO 971841L NO 971841 A NO971841 A NO 971841A NO 971841 A NO971841 A NO 971841A NO 971841 L NO971841 L NO 971841L
Authority
NO
Norway
Prior art keywords
cell
battery
calculate
measured
battery operation
Prior art date
Application number
NO971841A
Other languages
Norwegian (no)
Other versions
NO971841D0 (en
Inventor
Einar Gotaas
Original Assignee
Einar Gotaas
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 Einar Gotaas filed Critical Einar Gotaas
Priority to NO971841A priority Critical patent/NO971841L/en
Publication of NO971841D0 publication Critical patent/NO971841D0/en
Priority to AU70861/98A priority patent/AU7086198A/en
Priority to PCT/NO1998/000128 priority patent/WO1998048290A1/en
Publication of NO971841L publication Critical patent/NO971841L/en

Links

Classifications

    • 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]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • 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
    • 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]
    • G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
    • G01R31/379—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator for lead-acid batteries
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

I et akkumulatorbatteri måles spenninger over samtlige enkeltceller. Spenningen mellom positiv pol på en celle og negativ pol på neste celle i seriekoblingen måles også. Disse spenningsmålingene gjøres ved forskjellige strømmer gjennom batteriet. Basert på disse målinger er det mulig å beregne de forskjellige ekvivalent-motstandenne i systemet :Hver enkelt celles ekvivalente indre motstand, samt motstanden i koblingene mellom hver celle i batteriet.Ved hjelp av disse verdier er det mulig å beregne restkapasiteten i hver celle.In an accumulator battery, voltages are measured across all individual cells. The voltage between the positive pole of one cell and the negative pole of the next cell in the series connection is also measured. These voltage measurements are made at different currents through the battery. Based on these measurements, it is possible to calculate the different equivalent resistances in the system: The equivalent internal resistance of each cell, as well as the resistance in the connections between each cell in the battery. Using these values, it is possible to calculate the residual capacity in each cell.

NO971841A 1997-04-22 1997-04-22 Method of monitoring battery operation NO971841L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO971841A NO971841L (en) 1997-04-22 1997-04-22 Method of monitoring battery operation
AU70861/98A AU7086198A (en) 1997-04-22 1998-04-22 Monitoring battery condition
PCT/NO1998/000128 WO1998048290A1 (en) 1997-04-22 1998-04-22 Monitoring battery condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO971841A NO971841L (en) 1997-04-22 1997-04-22 Method of monitoring battery operation

Publications (2)

Publication Number Publication Date
NO971841D0 NO971841D0 (en) 1997-04-22
NO971841L true NO971841L (en) 1998-10-23

Family

ID=19900642

Family Applications (1)

Application Number Title Priority Date Filing Date
NO971841A NO971841L (en) 1997-04-22 1997-04-22 Method of monitoring battery operation

Country Status (3)

Country Link
AU (1) AU7086198A (en)
NO (1) NO971841L (en)
WO (1) WO1998048290A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0934580A4 (en) * 1997-08-22 2000-08-30 Ellen Caravello Battery capacity monitoring system
JP4030217B2 (en) * 1999-03-12 2008-01-09 トヨタ自動車株式会社 Abnormality determination device and abnormality determination method for battery pack
DE19964057A1 (en) * 1999-12-30 2001-07-05 Bosch Gmbh Robert Method for detecting a defective motor vehicle battery
JP4671462B2 (en) 2000-02-22 2011-04-20 パナソニック株式会社 Airtight inspection method for nickel metal hydride secondary battery
NO311680B1 (en) * 2000-05-29 2002-01-02 Einar Gotaas Battery Quality Monitoring Procedure
FR3002325B1 (en) * 2013-02-21 2015-02-20 Renault Sa IMPEDANCE ESTIMATION OF A MOTOR VEHICLE BATTERY
FR3070764B1 (en) * 2017-09-04 2020-09-04 Renault Sas PROCESS FOR DETERMINING THE STATE OF AN ELECTRICAL LINE CONNECTING A BATTERY CELL OF ACCUMULATORS TO A CONTROL UNIT AND CORRESPONDING CONTROL UNIT
WO2020047663A1 (en) 2018-09-05 2020-03-12 Dpm Technologies Inc. Systems and methods for intelligent energy storage and provisioning using an energy storage control system
US11897362B2 (en) 2021-05-04 2024-02-13 Exro Technologies Inc. Systems and methods for individual control of a plurality of controllable units of battery cells
JP2024518405A (en) 2021-05-13 2024-05-01 エクスロ テクノロジーズ インク． Method and apparatus for driving coils of a polyphase electric machine - Patents.com
WO2023279196A1 (en) 2021-07-08 2023-01-12 Exro Technologies Inc. Dynamically reconfigurable power converter utilizing windings of electrical machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697134A (en) * 1986-07-31 1987-09-29 Commonwealth Edison Company Apparatus and method for measuring battery condition
DE3702591A1 (en) * 1987-01-29 1988-08-11 Sonnenschein Accumulatoren CIRCUIT TO CONTINUOUSLY CHECK THE QUALITY OF A MULTI-CELL BATTERY
US5281920A (en) * 1992-08-21 1994-01-25 Btech, Inc. On-line battery impedance measurement
US5546003A (en) * 1994-03-07 1996-08-13 Polytronics Engineering Ltd. Multi-cell battery monitoring system with single sensor wire
DE4408740C1 (en) * 1994-03-15 1995-07-20 Sonnenschein Accumulatoren Circuit arrangement for checking a multi-cell battery

Also Published As

Publication number Publication date
NO971841D0 (en) 1997-04-22
WO1998048290A1 (en) 1998-10-29
AU7086198A (en) 1998-11-13

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application