GB2000596A - Battery state of charge indicator device - Google Patents

Battery state of charge indicator device

Info

Publication number
GB2000596A
GB2000596A GB7827507A GB7827507A GB2000596A GB 2000596 A GB2000596 A GB 2000596A GB 7827507 A GB7827507 A GB 7827507A GB 7827507 A GB7827507 A GB 7827507A GB 2000596 A GB2000596 A GB 2000596A
Authority
GB
United Kingdom
Prior art keywords
battery
battery state
output signal
switch element
indicator device
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
GB7827507A
Other versions
GB2000596B (en
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB7827507A priority Critical patent/GB2000596B/en
Publication of GB2000596A publication Critical patent/GB2000596A/en
Application granted granted Critical
Publication of GB2000596B publication Critical patent/GB2000596B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for 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
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

A battery state of charge indicating device intended for use in a battery powered vehicle includes a battery voltage measuring circuit (301) which produces an output signal dependent on the voltage of a storage battery (303). A switch element (323) connects the output signal to a storage capacitor (327) when conductive. Switch element (323) is rendered conductive from time to time by a timer circuit (315 and 354 to 367) triggered by an input from a motor current detector circuit (340). The timer circuit is triggered whenever the motor current falls below a threshold value, indicating that the battery current has ceased. <IMAGE>
GB7827507A 1977-07-01 1978-06-21 Battery state of charge indicator device Expired GB2000596B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7827507A GB2000596B (en) 1977-07-01 1978-06-21 Battery state of charge indicator device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2771677 1977-07-01
GB7827507A GB2000596B (en) 1977-07-01 1978-06-21 Battery state of charge indicator device

Publications (2)

Publication Number Publication Date
GB2000596A true GB2000596A (en) 1979-01-10
GB2000596B GB2000596B (en) 1982-02-10

Family

ID=26258963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7827507A Expired GB2000596B (en) 1977-07-01 1978-06-21 Battery state of charge indicator device

Country Status (1)

Country Link
GB (1) GB2000596B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031852A1 (en) * 1980-06-28 1982-01-21 Lucas Industries Ltd., Birmingham, West Midlands DEVICE FOR DETERMINING THE CHARGING STATE OF A BATTERY
GB2126735A (en) * 1982-08-30 1984-03-28 Nissan Motor Method and system for indicating storage battery capacity
US4460870A (en) * 1981-07-23 1984-07-17 Curtis Instruments, Inc. Quiescent voltage sampling battery state of charge meter
US4514694A (en) * 1981-07-23 1985-04-30 Curtis Instruments Quiescent battery testing method and apparatus
CN113366677A (en) * 2019-02-12 2021-09-07 康明斯有限公司 System and method for predicting energy storage device health

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031852A1 (en) * 1980-06-28 1982-01-21 Lucas Industries Ltd., Birmingham, West Midlands DEVICE FOR DETERMINING THE CHARGING STATE OF A BATTERY
US4460870A (en) * 1981-07-23 1984-07-17 Curtis Instruments, Inc. Quiescent voltage sampling battery state of charge meter
US4514694A (en) * 1981-07-23 1985-04-30 Curtis Instruments Quiescent battery testing method and apparatus
GB2126735A (en) * 1982-08-30 1984-03-28 Nissan Motor Method and system for indicating storage battery capacity
CN113366677A (en) * 2019-02-12 2021-09-07 康明斯有限公司 System and method for predicting energy storage device health

Also Published As

Publication number Publication date
GB2000596B (en) 1982-02-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee