SE1750706A1 - Method for determining that a cell of a batery is faulty - Google Patents

Method for determining that a cell of a batery is faulty

Info

Publication number
SE1750706A1
SE1750706A1 SE1750706A SE1750706A SE1750706A1 SE 1750706 A1 SE1750706 A1 SE 1750706A1 SE 1750706 A SE1750706 A SE 1750706A SE 1750706 A SE1750706 A SE 1750706A SE 1750706 A1 SE1750706 A1 SE 1750706A1
Authority
SE
Sweden
Prior art keywords
battery
voltage
determining
faulty
cell
Prior art date
Application number
SE1750706A
Other languages
Swedish (sv)
Other versions
SE542223C2 (en
Inventor
Pavel Krejsa
Peter Nordlöf
Original Assignee
Ctek Sweden Ab
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 Ctek Sweden Ab filed Critical Ctek Sweden Ab
Priority to SE1750706A priority Critical patent/SE542223C2/en
Publication of SE1750706A1 publication Critical patent/SE1750706A1/en
Publication of SE542223C2 publication Critical patent/SE542223C2/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]
    • G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process

Landscapes

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

Abstract

The disclosure relates to a method for a battery charger configured to prevent damage to a battery being charged, the method comprising controlling a power source to cyclically generate a current pulse within a cycle period to terminals of the battery, obtaining a first plurality of successive voltage values indicative of a voltage over the terminals of the battery within a charging period of the cycle period, determining a first voltage trend, based on the first plurality of successive voltage values, determining that a battery cell of the battery is faulty based one the first voltage trend and a set of predefined voltage profiles, and if it is determined that the battery cell is faulty, controlling the power source to stop the cyclic generation of subsequent current pulses.
SE1750706A 2017-06-05 2017-06-05 Method for determining that a cell of a battery is faulty SE542223C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE1750706A SE542223C2 (en) 2017-06-05 2017-06-05 Method for determining that a cell of a battery is faulty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1750706A SE542223C2 (en) 2017-06-05 2017-06-05 Method for determining that a cell of a battery is faulty

Publications (2)

Publication Number Publication Date
SE1750706A1 true SE1750706A1 (en) 2018-12-06
SE542223C2 SE542223C2 (en) 2020-03-17

Family

ID=64899085

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1750706A SE542223C2 (en) 2017-06-05 2017-06-05 Method for determining that a cell of a battery is faulty

Country Status (1)

Country Link
SE (1) SE542223C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964849A1 (en) * 2020-09-07 2022-03-09 Hyundai Motor Company Battery management apparatus and energy storage system having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964849A1 (en) * 2020-09-07 2022-03-09 Hyundai Motor Company Battery management apparatus and energy storage system having the same

Also Published As

Publication number Publication date
SE542223C2 (en) 2020-03-17

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