GB2000596A - Battery state of charge indicator device - Google Patents
Battery state of charge indicator deviceInfo
- 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
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>
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)
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 |
-
1978
- 1978-06-21 GB GB7827507A patent/GB2000596B/en not_active Expired
Cited By (5)
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 |