JPS57141570A - Display device for charging and discharging quantity of accumulator - Google Patents

Display device for charging and discharging quantity of accumulator

Info

Publication number
JPS57141570A
JPS57141570A JP56027443A JP2744381A JPS57141570A JP S57141570 A JPS57141570 A JP S57141570A JP 56027443 A JP56027443 A JP 56027443A JP 2744381 A JP2744381 A JP 2744381A JP S57141570 A JPS57141570 A JP S57141570A
Authority
JP
Japan
Prior art keywords
circuit
charging
accumulator
discharging
pulse signal
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
JP56027443A
Other languages
Japanese (ja)
Inventor
Masato Nozaki
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.)
Resonac Corp
Original Assignee
Shin Kobe Electric Machinery 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 Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to JP56027443A priority Critical patent/JPS57141570A/en
Publication of JPS57141570A publication Critical patent/JPS57141570A/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]
    • G01R31/382—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)
  • Secondary Cells (AREA)

Abstract

PURPOSE:To know the charging/discharging state accurately by counting the charging/discharging current of an accumulator in the form of the pulse signal, and displaying the charging/discharging electric quantity of the accumulator in percent against the nominal capacitance and according to the counting state of the above mentioned pulse signal. CONSTITUTION:When the charging starts for an accumulator 1, the charging current is detected by a microresistor 2 in the form of voltage and converted by a voltage-frequency converting circuit 3 into the pulse signal having the frequency proportional to the detected voltage. This pulse signal is counted by a counting circuit 5 to be stored. In this case, the direction of the current is discriminated by a charging/discharging discriminating circuit 4 with an additional counting instruction, and the count value of the circuit 5 is converted into the electric signal and displayed by a display circuit 6. In this case, the size of the resistor 2, the converting factor of the circuit 3 and the count value of the circuit 5 are set respectively so as to indicate the display of the circuit 6 100% when the nominal capacitance of the accumulator 1 is charged.
JP56027443A 1981-02-26 1981-02-26 Display device for charging and discharging quantity of accumulator Pending JPS57141570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027443A JPS57141570A (en) 1981-02-26 1981-02-26 Display device for charging and discharging quantity of accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027443A JPS57141570A (en) 1981-02-26 1981-02-26 Display device for charging and discharging quantity of accumulator

Publications (1)

Publication Number Publication Date
JPS57141570A true JPS57141570A (en) 1982-09-01

Family

ID=12221249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027443A Pending JPS57141570A (en) 1981-02-26 1981-02-26 Display device for charging and discharging quantity of accumulator

Country Status (1)

Country Link
JP (1) JPS57141570A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61142480A (en) * 1984-12-14 1986-06-30 Matsuda Kiden Kk Discharge detector for battery
JPS61144745U (en) * 1985-02-26 1986-09-06
JPS646574U (en) * 1987-06-30 1989-01-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61142480A (en) * 1984-12-14 1986-06-30 Matsuda Kiden Kk Discharge detector for battery
JPS61144745U (en) * 1985-02-26 1986-09-06
JPS646574U (en) * 1987-06-30 1989-01-13

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