CA1049614A - Method and apparatus for measuring the state of charge of a battery by monitoring reductions in voltage - Google Patents
Method and apparatus for measuring the state of charge of a battery by monitoring reductions in voltageInfo
- Publication number
- CA1049614A CA1049614A CA241,631A CA241631A CA1049614A CA 1049614 A CA1049614 A CA 1049614A CA 241631 A CA241631 A CA 241631A CA 1049614 A CA1049614 A CA 1049614A
- Authority
- CA
- Canada
- Prior art keywords
- terminal voltage
- battery
- output signal
- voltage
- magnitude
- 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
- 230000009467 reduction Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 230000004044 response Effects 0.000 claims abstract description 28
- 239000000543 intermediate Substances 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 4
- 230000001955 cumulated effect Effects 0.000 claims 2
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 18
- 239000003990 capacitor Substances 0.000 description 10
- 230000009021 linear effect Effects 0.000 description 7
- 230000000875 corresponding effect Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000331231 Amorphocerini gen. n. 1 DAD-2008 Species 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 206010065929 Cardiovascular insufficiency Diseases 0.000 description 1
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 1
- 101100285000 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) his-3 gene Proteins 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- QHGVXILFMXYDRS-UHFFFAOYSA-N pyraclofos Chemical group C1=C(OP(=O)(OCC)SCCC)C=NN1C1=CC=C(Cl)C=C1 QHGVXILFMXYDRS-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- G01R31/36—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
- G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53846375A | 1975-01-03 | 1975-01-03 | |
| US05/591,055 US4017724A (en) | 1975-06-27 | 1975-06-27 | Apparatus for measuring battery depletion by monitoring reductions in voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1049614A true CA1049614A (en) | 1979-02-27 |
Family
ID=27065826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA241,631A Expired CA1049614A (en) | 1975-01-03 | 1975-12-12 | Method and apparatus for measuring the state of charge of a battery by monitoring reductions in voltage |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5193340A (show.php) |
| CA (1) | CA1049614A (show.php) |
| DE (1) | DE2558526C2 (show.php) |
| FR (1) | FR2296945A1 (show.php) |
| GB (1) | GB1537500A (show.php) |
| IT (1) | IT1062151B (show.php) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3706076A1 (de) * | 1987-02-25 | 1988-09-08 | Elektron Bremen | Verfahren und vorrichtung zur ueberwachung des bereitschaftszustandes eines batteriebetriebenen fahrzeuges |
| US6252378B1 (en) * | 2000-01-10 | 2001-06-26 | Snap-On Technologies, Inc. | Usage counter for portable jump-starting battery unit |
| DE102004056190B4 (de) * | 2004-11-20 | 2013-12-19 | Braun Gmbh | Verfahren zur Bestimmung eines Ladungszustands einer wiederaufladbaren Batterie |
| US7496460B2 (en) | 2006-09-06 | 2009-02-24 | Eastway Fair Company Limited | Energy source monitoring and control system for power tools |
| US11310879B1 (en) * | 2021-02-05 | 2022-04-19 | Monolithic Power Systems, Inc. | Adaptive feedback control in LED driving circuits |
| CN114487644B (zh) * | 2021-12-17 | 2024-11-26 | 未来穿戴技术股份有限公司 | 充电状态检测方法、装置、电子设备及存储介质 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE648836C (de) * | 1935-11-01 | 1937-08-09 | Accumulatoren Fabrik Akt Ges | Verfahren zur Kompensation des scheinbaren inneren Widerstandes der Batterie bei derSchaltung zur Messung des Betriebszustandes |
| GB1136083A (en) * | 1965-03-11 | 1968-12-11 | Eaton Yale & Towne | A circuit for indicating when a battery is discharged |
| US3484681A (en) * | 1967-10-27 | 1969-12-16 | Grady Charles B Jun | Remaining battery charge meter |
| DE2028117B2 (en) * | 1969-06-12 | 1975-11-27 | Ckd Praha, Oborovy Podnik, Prag | Charge condition monitor and control for battery charger - stores earlier terminal volts value for comparison with later volts value |
| FR2209107B1 (show.php) * | 1972-12-06 | 1977-12-23 | Redresseurs Sta Benit | |
| DE2321108B2 (de) * | 1973-04-26 | 1976-06-16 | Elektron Fabrik für physikalischtechnische Geräte Kerber & Co., 2800 Bremen | Einrichtung zur ueberwachung des entladezustands einer batterie |
-
1975
- 1975-12-12 CA CA241,631A patent/CA1049614A/en not_active Expired
- 1975-12-23 GB GB52738/75A patent/GB1537500A/en not_active Expired
- 1975-12-24 DE DE2558526A patent/DE2558526C2/de not_active Expired
- 1975-12-30 JP JP50159736A patent/JPS5193340A/ja active Pending
-
1976
- 1976-01-02 IT IT67003/76A patent/IT1062151B/it active
- 1976-01-02 FR FR7600036A patent/FR2296945A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT1062151B (it) | 1983-06-30 |
| DE2558526A1 (de) | 1976-07-08 |
| FR2296945A1 (fr) | 1976-07-30 |
| GB1537500A (en) | 1978-12-29 |
| JPS5193340A (show.php) | 1976-08-16 |
| DE2558526C2 (de) | 1985-09-19 |
| FR2296945B1 (show.php) | 1981-02-13 |
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