GB1256676A - - Google Patents
Info
- Publication number
- GB1256676A GB1256676A GB1256676DA GB1256676A GB 1256676 A GB1256676 A GB 1256676A GB 1256676D A GB1256676D A GB 1256676DA GB 1256676 A GB1256676 A GB 1256676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery
- measuring
- charge
- potential
- amplifier
- 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.)
- Expired
Links
- 238000001914 filtration Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is AC
-
- 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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- 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
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Current Or Voltage (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
1,256,676. Measuring battery charge state. BROWN, BOVERI & CIE AG. July 10, 1970 [July 26, 1969], No. 33696/70. Heading G1U. The state of charge of a battery 3 is determined by measuring its internal impedance (which rises as the battery discharges), this being effected by passing a constant alternating current through the battery and measuring the resulting voltage drop across the battery. The actual value of the alternating current passing through the battery from a generator 1, amplifier 2 and coupling transformer 4 and capacitor 5, is represented by the potential across a resistor 11 in the battery circuit. This potential, after filtering and amplifying 13, 14, 15, 16, is compared with a preset potential in a comparator amplifier 17 in order to control the generator amplifier 2 and thereby maintain the current constant. The resulting voltage across the battery may, after filtering and amplifying, be displayed on a meter 9, or used to control indicator lamps 10, that corresponding to the lowest state of charge being arranged to flash when energized.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691938076 DE1938076C3 (en) | 1969-07-26 | Device for checking the state of charge of accumulators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1256676A true GB1256676A (en) | 1971-12-15 |
Family
ID=5741005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1256676D Expired GB1256676A (en) | 1969-07-26 | 1970-07-10 |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT299376B (en) |
| BE (1) | BE753904A (en) |
| CH (1) | CH506894A (en) |
| FR (1) | FR2055586A5 (en) |
| GB (1) | GB1256676A (en) |
| NL (1) | NL7009999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113711420A (en) * | 2019-04-26 | 2021-11-26 | 株式会社电装 | Battery monitoring device |
-
1970
- 1970-04-30 AT AT395970A patent/AT299376B/en active
- 1970-07-07 NL NL7009999A patent/NL7009999A/xx unknown
- 1970-07-10 GB GB1256676D patent/GB1256676A/en not_active Expired
- 1970-07-24 CH CH1122570A patent/CH506894A/en not_active IP Right Cessation
- 1970-07-24 BE BE753904D patent/BE753904A/en unknown
- 1970-07-24 FR FR7027386A patent/FR2055586A5/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113711420A (en) * | 2019-04-26 | 2021-11-26 | 株式会社电装 | Battery monitoring device |
| CN113711420B (en) * | 2019-04-26 | 2024-03-15 | 株式会社电装 | Battery monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1938076B2 (en) | 1976-10-21 |
| FR2055586A5 (en) | 1971-05-07 |
| CH506894A (en) | 1971-04-30 |
| BE753904A (en) | 1970-12-31 |
| NL7009999A (en) | 1971-01-28 |
| DE1938076A1 (en) | 1971-02-04 |
| AT299376B (en) | 1972-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |