JPS56126775A - Detecting method for capacity of battery for automobile - Google Patents
Detecting method for capacity of battery for automobileInfo
- Publication number
- JPS56126775A JPS56126775A JP2922480A JP2922480A JPS56126775A JP S56126775 A JPS56126775 A JP S56126775A JP 2922480 A JP2922480 A JP 2922480A JP 2922480 A JP2922480 A JP 2922480A JP S56126775 A JPS56126775 A JP S56126775A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- capacity
- time
- current
- circuit
- 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
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
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Secondary Cells (AREA)
Abstract
PURPOSE:To enable detection of capacity with high precision even during operation by calculating electromotive force and dead short current at the time of short-circuit from discharge current and the terminal voltage of the battery at that point of time and by determining the capacity of the battery based on prescribed experimental formulas. CONSTITUTION:By detecting circuit 14 and 18 detecting the peak value I1, I2 etc. and detecting circuits 16 and 20 for V1, V2 and the like, the maximum dischatge current I1 generated while a crank shaft is rotated at a prescribed angle from the time of start thereof and the terminal voltage V1 of the battery at that point of time, as well as the voltage V2 corresponding to the minimum discharge current I2, are detected, and the electromotive force Eo and the dead short current Is at the time of short circuit based on the formulas I and II are computed through digital processing by an operation circuit 24. The multiplication of the values thus computed by correlative functions A and B found in the experimental formula III for determing the capacity, which accords well with actual conditions, and settled in accordance with the kind of the battery irrespective of the temperature, etc. of the liquid of the battery, as well as the addition of a similar function C thereto, etc. is conducted and the capacity of the battery is determined, whereby the capacity of the battery can be detected with high precision even during operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2922480A JPS56126775A (en) | 1980-03-10 | 1980-03-10 | Detecting method for capacity of battery for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2922480A JPS56126775A (en) | 1980-03-10 | 1980-03-10 | Detecting method for capacity of battery for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56126775A true JPS56126775A (en) | 1981-10-05 |
| JPH0137704B2 JPH0137704B2 (en) | 1989-08-09 |
Family
ID=12270239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2922480A Granted JPS56126775A (en) | 1980-03-10 | 1980-03-10 | Detecting method for capacity of battery for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56126775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001229981A (en) * | 1999-12-16 | 2001-08-24 | Daimlerchrysler Ag | Remaining electric charge of battery and method of monitoring power function |
| CN111208369A (en) * | 2020-01-13 | 2020-05-29 | 中国核电工程有限公司 | Method and device for calculating short-circuit current of direct-current system of nuclear power plant |
-
1980
- 1980-03-10 JP JP2922480A patent/JPS56126775A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001229981A (en) * | 1999-12-16 | 2001-08-24 | Daimlerchrysler Ag | Remaining electric charge of battery and method of monitoring power function |
| CN111208369A (en) * | 2020-01-13 | 2020-05-29 | 中国核电工程有限公司 | Method and device for calculating short-circuit current of direct-current system of nuclear power plant |
| CN111208369B (en) * | 2020-01-13 | 2022-03-22 | 中国核电工程有限公司 | Method and device for calculating short-circuit current of direct-current system of nuclear power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0137704B2 (en) | 1989-08-09 |
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