JPS57200874A - Residual time indicator for battery capacity - Google Patents

Residual time indicator for battery capacity

Info

Publication number
JPS57200874A
JPS57200874A JP56086604A JP8660481A JPS57200874A JP S57200874 A JPS57200874 A JP S57200874A JP 56086604 A JP56086604 A JP 56086604A JP 8660481 A JP8660481 A JP 8660481A JP S57200874 A JPS57200874 A JP S57200874A
Authority
JP
Japan
Prior art keywords
battery
battery capacity
cpu
residual time
current
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.)
Pending
Application number
JP56086604A
Other languages
Japanese (ja)
Inventor
Mitsuaki Maeda
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56086604A priority Critical patent/JPS57200874A/en
Publication of JPS57200874A publication Critical patent/JPS57200874A/en
Pending legal-status Critical Current

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]
    • G01R31/3644—Constructional arrangements
    • G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • 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]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

PURPOSE:To achieve efficent operation of the power source by enabling instantaneous capturing of residual time for the battery capacity in case of power failure with a specified computation and indication based on the output of a temperature sensor, measured current and the time of battery consumption. CONSTITUTION:Output of a battery 5 is supplied to individual circuits through a switch 6 and a timer 9 in a CPU starts. A temperature sensor 4 detects the ambient temperature of the battery 5 while a current measuring section 3 measures consumed current of a load 7 and data are supplied to the CPU 2. The CPU 2 which memorizes data for change in the battery capacity with respect to the ambient temperature, the coefficient of discharge current of the battery and the service time computes residual time for the battery capacity based on the input data when the load is driven and provides it continuously to a display section 1 to indicate.
JP56086604A 1981-06-05 1981-06-05 Residual time indicator for battery capacity Pending JPS57200874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56086604A JPS57200874A (en) 1981-06-05 1981-06-05 Residual time indicator for battery capacity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56086604A JPS57200874A (en) 1981-06-05 1981-06-05 Residual time indicator for battery capacity

Publications (1)

Publication Number Publication Date
JPS57200874A true JPS57200874A (en) 1982-12-09

Family

ID=13891612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56086604A Pending JPS57200874A (en) 1981-06-05 1981-06-05 Residual time indicator for battery capacity

Country Status (1)

Country Link
JP (1) JPS57200874A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191438A (en) * 1983-04-15 1984-10-30 松下電工株式会社 Charging/discharging display unit of charging circuit
JPS61209372A (en) * 1985-03-14 1986-09-17 Matsushita Electric Works Ltd Circuit for confirming residual power quantity in battery
JPS62264851A (en) * 1986-05-10 1987-11-17 Hitachi Seiki Co Ltd Electric power source contained type touch sensor for machine tool
US4839597A (en) * 1985-07-12 1989-06-13 Hudson Oxygen Therapy Sales Company Battery condition monitoring system
EP0592965A2 (en) * 1992-10-13 1994-04-20 Sanyo Electric Co., Ltd. Battery monitoring system and battery pack
JPH06242195A (en) * 1993-02-12 1994-09-02 Omron Corp Estimating device for holding time of battery
FR2739452A1 (en) * 1995-09-29 1997-04-04 Renault Method and system for measuring the charge state of a battery driving an electric vehicle.
JPH10143976A (en) * 1996-11-07 1998-05-29 Ricoh Co Ltd Optical disk drive device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5164234A (en) * 1974-12-02 1976-06-03 Sesukosurobensuke Ootomobiroe JIDOSHAYONENRYOTANKU

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5164234A (en) * 1974-12-02 1976-06-03 Sesukosurobensuke Ootomobiroe JIDOSHAYONENRYOTANKU

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191438A (en) * 1983-04-15 1984-10-30 松下電工株式会社 Charging/discharging display unit of charging circuit
JPS61209372A (en) * 1985-03-14 1986-09-17 Matsushita Electric Works Ltd Circuit for confirming residual power quantity in battery
US4839597A (en) * 1985-07-12 1989-06-13 Hudson Oxygen Therapy Sales Company Battery condition monitoring system
JPS62264851A (en) * 1986-05-10 1987-11-17 Hitachi Seiki Co Ltd Electric power source contained type touch sensor for machine tool
EP0592965A2 (en) * 1992-10-13 1994-04-20 Sanyo Electric Co., Ltd. Battery monitoring system and battery pack
EP0592965A3 (en) * 1992-10-13 1995-07-05 Sanyo Electric Co Battery monitoring system and battery pack.
JPH06242195A (en) * 1993-02-12 1994-09-02 Omron Corp Estimating device for holding time of battery
FR2739452A1 (en) * 1995-09-29 1997-04-04 Renault Method and system for measuring the charge state of a battery driving an electric vehicle.
JPH10143976A (en) * 1996-11-07 1998-05-29 Ricoh Co Ltd Optical disk drive device

Similar Documents

Publication Publication Date Title
US5844861A (en) Athletic jump duration timing apparatus
KR910700468A (en) Charge status indicator
EP0525983A3 (en) Device for measuring the state of charge of a battery
JP2002093465A (en) Battery life estimating device for gas meter
JPS57200874A (en) Residual time indicator for battery capacity
ES1021572U (en) Temperature measuring and indicating device.
KR970000450B1 (en) Energy efficient scale
US6215280B1 (en) Portable optical code reader with a device for controlling the charge state of the reader battery
JPS6459179A (en) Battery apparatus equipped with non-volatile memory
CN208334596U (en) Battery monitoring device and battery modules
JP2621217B2 (en) Electronic device having battery performance determination system
JPS5644868A (en) Residual amount indicating device of battery
US4449187A (en) Device for indirectly monitoring cumulative cost of utility consumption
TW297098B (en) Method of detecting battery residual electricity and device thereof
JPS57199979A (en) Timepiece
JPS5753629A (en) Battery type scale
KR970002337A (en) Battery remaining capacity measuring method and device
JPH07198807A (en) Computation apparatus for battery residual amount
JPS57161567A (en) Storage battery monitor device
CN2311764Y (en) Water-leakage alarming temperature measuring device
KR100249122B1 (en) Battery change time detecting method for 3-phase electronics type watt-hour meter
JPS6410151A (en) Estimation and display device for life of xenon lamp
JPS61102976U (en)
JPS577531A (en) Temperature indicator
JPS6415678A (en) Battery life measuring apparatus