CA2209817A1 - Device for managing battery packs by monitoring and assessing the operating capacity of the battery modules in the pack - Google Patents

Device for managing battery packs by monitoring and assessing the operating capacity of the battery modules in the pack

Info

Publication number
CA2209817A1
CA2209817A1 CA002209817A CA2209817A CA2209817A1 CA 2209817 A1 CA2209817 A1 CA 2209817A1 CA 002209817 A CA002209817 A CA 002209817A CA 2209817 A CA2209817 A CA 2209817A CA 2209817 A1 CA2209817 A1 CA 2209817A1
Authority
CA
Canada
Prior art keywords
battery
pack
monitoring
modules
capacity
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
CA002209817A
Other languages
French (fr)
Other versions
CA2209817C (en
Inventor
James H. Dunn
Julio C. De Oliveira
David H. Gerwing
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.)
Estco Battery Management Inc
Original Assignee
Estco Energy Inc.
James H. Dunn
Julio C. De Oliveira
David H. Gerwing
Estco Battery Management Inc.
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 Estco Energy Inc., James H. Dunn, Julio C. De Oliveira, David H. Gerwing, Estco Battery Management Inc. filed Critical Estco Energy Inc.
Publication of CA2209817A1 publication Critical patent/CA2209817A1/en
Priority to AU82022/98A priority Critical patent/AU8202298A/en
Priority to US09/446,950 priority patent/US6329792B1/en
Priority to PCT/CA1998/000650 priority patent/WO1999001918A2/en
Priority to CA002317045A priority patent/CA2317045C/en
Priority to DE69837661T priority patent/DE69837661T2/en
Priority to AT98931856T priority patent/ATE360909T1/en
Priority to EP98931856A priority patent/EP0992100B1/en
Application granted granted Critical
Publication of CA2209817C publication Critical patent/CA2209817C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • 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]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • 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]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/005—Detection of state of health [SOH]
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention relates to a device for managing battery packs by measuring and monitoring the operating capacity of individual battery modules in a battery pack. A programmable logic controller directs the selective closing of relays to allow individual battery modules to be load-tested using a variable discharge load unit, without compromising useful battery pack capacity. A battery module whose useful capacity falls below a predefined threshold may be connected to a battery charger for replenishment and then electrically realigned with the remaining modules in the pack for continued operation. Alternatively, an alarm may be triggered which alerts the user that the module is due for replacement. This sequence of events is performed on all cells in the pack at a predetermined interval.
CA002209817A 1996-07-05 1997-07-04 Device for managing battery packs by monitoring and assessing the operating capacity of the battery modules in the pack Expired - Lifetime CA2209817C (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US09/446,950 US6329792B1 (en) 1997-07-04 1998-07-03 Device and system for management of battery back up power source
AU82022/98A AU8202298A (en) 1997-07-03 1998-07-03 Device and system for management of battery back up power source
PCT/CA1998/000650 WO1999001918A2 (en) 1997-07-03 1998-07-03 Device and system for management of battery back up power source
CA002317045A CA2317045C (en) 1997-07-03 1998-07-03 Device and system for management of battery back up power source
DE69837661T DE69837661T2 (en) 1997-07-03 1998-07-03 DEVICE AND METHOD FOR MANAGING A BATTERY POWER SUPPLY DEVICE
AT98931856T ATE360909T1 (en) 1997-07-03 1998-07-03 DEVICE AND METHOD FOR MANAGING A BATTERY BACKUP POWER SUPPLY DEVICE
EP98931856A EP0992100B1 (en) 1997-07-03 1998-07-03 System and method for management of battery back up power source

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US2118596P 1996-07-05 1996-07-05
US60/021,185 1996-07-05
US08/887,844 US6239579B1 (en) 1996-07-05 1997-07-03 Device for managing battery packs by selectively monitoring and assessing the operative capacity of the battery modules in the pack
US08/887,844 1997-07-03

Publications (2)

Publication Number Publication Date
CA2209817A1 true CA2209817A1 (en) 1998-01-05
CA2209817C CA2209817C (en) 2003-04-01

Family

ID=26694383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002209817A Expired - Lifetime CA2209817C (en) 1996-07-05 1997-07-04 Device for managing battery packs by monitoring and assessing the operating capacity of the battery modules in the pack

Country Status (2)

Country Link
US (3) US6239579B1 (en)
CA (1) CA2209817C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109416389A (en) * 2016-06-28 2019-03-01 凌力尔特科技有限责任公司 Wireless sensor for battery system

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US6541941B2 (en) 2003-04-01
US6339313B1 (en) 2002-01-15
US6239579B1 (en) 2001-05-29
CA2209817C (en) 2003-04-01
US20020053896A1 (en) 2002-05-09

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