FR2611314A3 - Method and device for monitoring the reserve of a storage battery - Google Patents
Method and device for monitoring the reserve of a storage battery Download PDFInfo
- Publication number
- FR2611314A3 FR2611314A3 FR8702723A FR8702723A FR2611314A3 FR 2611314 A3 FR2611314 A3 FR 2611314A3 FR 8702723 A FR8702723 A FR 8702723A FR 8702723 A FR8702723 A FR 8702723A FR 2611314 A3 FR2611314 A3 FR 2611314A3
- Authority
- FR
- France
- Prior art keywords
- battery
- parts
- storage battery
- comparator
- measuring
- 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
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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
PROCEDE ET DISPOSITIF DE CONTROLE DE LA
DISPONIBILITE D'UNE BATTERIE
D'ACCUMULATEURS
La présente invention se rapporte à un procédé de contrôle de la disponibilité d'une batterie d'accumulateurs, ainsi qu'à un dispositif pour la
mise en oeuvre de ce procédé.METHOD AND DEVICE FOR CONTROLLING THE
AVAILABILITY OF A BATTERY
ACCUMULATORS
The present invention relates to a method for checking the availability of a storage battery, as well as to a device for
implementation of this process.
La disponibilité d'une batterie d'accumulateurs est son aptitude à alimenter un circuit d'utilisation dans des conditions assignées de tension, courant et durée, lorsque le réseau normal d'alimentation de ce circuit est absent. Il est connu, pour contrôler en permanence cette disponibilité, de mesurer un paramètre de la batterie, par exemple son impédance interne, et d'émettre une information lorsque ce paramètre a atteint une valeur indiquant que la batterie n'est plus disponible: charge insuffisante, électrolyte évaporé, évacué ou pollué, plaques endommagées, connexions résistantes, etc.... The availability of a storage battery is its ability to supply a use circuit under rated voltage, current and duration conditions, when the normal supply network for this circuit is absent. It is known, to permanently check this availability, to measure a parameter of the battery, for example its internal impedance, and to issue information when this parameter has reached a value indicating that the battery is no longer available: insufficient charge , evaporated, evacuated or polluted electrolyte, damaged plates, resistant connections, etc.
On constate néanmoins que la mesure ainsi effectuée est fortement dépendante des caractéristiques du dispositif de charge de la batterie ainsi que de celles de son circuit d'utilisation. Par exemple, dans le cas où le paramètre mesuré est l'impédance interne de la batterie, les condensateurs équipant le dispositif de charge et/ou le circuit d'utilisation perturbent fortement la mesure de l'impédance interne. However, it can be seen that the measurement thus made is highly dependent on the characteristics of the battery charging device as well as those of its circuit of use. For example, in the case where the measured parameter is the internal impedance of the battery, the capacitors fitted to the charging device and / or the operating circuit strongly disturb the measurement of the internal impedance.
L'invention vise à remédier à cet inconvénient, par un procédé de contrôle permanent ou non de la disponibilité d'une batterie d'accumulateurs, par mesure d'au moins un paramètre électrique, la mesure étant effectuée de manière à éliminer l'influence des circuits extérieurs raccordés à la batterie. Selon ce procédé, la batterie est partagée, électriquement parlant, en plusieurs parties comportant chacune au moins un élément d'accumulateur. Le paramètre électrique de chacune de ces parties est mesuré et comparé à celui ou à ceux de l'autre partie ou des autres parties, ou à leur moyenne, et une information est émise lorsque un écart prédéterminé entre ces mêmes paramètres est constaté lors de cette comparaison. The invention aims to remedy this drawback, by a method of permanent control or not of the availability of a storage battery, by measuring at least one electrical parameter, the measurement being carried out so as to eliminate the influence external circuits connected to the battery. According to this method, the battery is divided, electrically speaking, into several parts, each comprising at least one accumulator element. The electrical parameter of each of these parts is measured and compared with that or those of the other part or of the other parts, or with their average, and information is emitted when a predetermined difference between these same parameters is noted during this comparison.
L'invention est basée sur le fait que, contrairement à ce que l'on peut peut-être croire à priori, les éléments d'une batterie ne "vieillissent" jamais tous de la même manière, c'est-à-dire en fait que, s'ils sont soumis aux mêmes contraintes, ils ne réagissent pas tous de la même façon, de sorte que l'indisponibilité d'une batterie se matérialise toujours par le fait que ses paramètres sont devenus très différents d'un élément à l'autre, ainsi que d'un groupe d'éléments à l'autre. The invention is based on the fact that, contrary to what one might think a priori, the elements of a battery never "age" all in the same way, that is to say in fact that, if they are subjected to the same constraints, they do not all react in the same way, so that the unavailability of a battery always materializes by the fact that its parameters have become very different from one element to the other, as well as from one group of elements to another.
L'invention a également pour objet un dispositif pour la mise en oeuvre de ce procédé, le paramètre choisi étant par exemple l'impédance interne de chacune de ces parties de batterie, ce dispositif comportant
- pour chacune de ces parties un dispositif de mesure de son impédance interne, ou autre(s) paramètre(s),
- un comparateur dont les entrées reçoivent les signaux de sortie de chacun de ces dispositifs de mesure,
- un circuit à seuil recevant le signal de sortie du comparateur et émettant une information lorsque ce signal dépasse une valeur prédéterminée, correspondant à l'indisponibilité de la batterie.The invention also relates to a device for implementing this method, the parameter chosen being for example the internal impedance of each of these battery parts, this device comprising
- for each of these parts, a device for measuring its internal impedance, or other parameter (s),
- a comparator, the inputs of which receive the output signals from each of these measurement devices,
- a threshold circuit receiving the comparator output signal and transmitting information when this signal exceeds a predetermined value, corresponding to the unavailability of the battery.
L'invention sera bien comprise, et ses divers avantages et caractéristiques ressortiront, au cours de la description suivante d'un exemple non limitatif de réalisation, en référence au dessin schématique annexé qui représente schématiquement ce circuit de contrôle. The invention will be clearly understood, and its various advantages and characteristics will emerge during the following description of a nonlimiting exemplary embodiment, with reference to the appended schematic drawing which schematically represents this control circuit.
Sur cette figure unique, une batterie d'accumulateur 1, de 12 volts par exemple, est composée de six éléments de 2 volts chacun. Cette batterie débite sur un circuit d'utilisation 2, et elle est chargée par un dispositif de charge 3. In this single figure, a storage battery 1, of 12 volts for example, is composed of six elements of 2 volts each. This battery flows on a usage circuit 2, and it is charged by a charging device 3.
Selon l'invention, un premier dispositif 4 de mesure d'impédance est branché aux bornes 5,6 d'un premier groupe 7 d'éléments accumulateurs, comportant trois éléments comme représenté, tandis qu'un second dispositif X de mesure d'impédance, identique au dispositif 4, est branché aux bornes 6,9 de l'autre partie 10 de la batterie, comportant les trois éléments restants. According to the invention, a first impedance measurement device 4 is connected to the terminals 5, 6 of a first group 7 of accumulator elements, comprising three elements as shown, while a second impedance measurement device X , identical to device 4, is connected to terminals 6,9 of the other part 10 of the battery, comprising the three remaining elements.
Les tensions de sortie en 11 et 12 des dispositifs de mesure 4 et 8 sont appliquées aux deux entrées de comparaison 13 et 14 d'un comparateur analogique 15,.dont la tension de sortie en 16, proportionnelle ou égale à la valeur absolue de la différence entre les tensions en 1 1 et 12, est appliquée à un circuit à seuil 17 qui fournit un signal d'alarme sur sa sortie 18 lorsque la tension en 16 dépasse une valeur prédéterminée, représentative de la non disponibilité de la batterie 1. The output voltages at 11 and 12 of the measuring devices 4 and 8 are applied to the two comparison inputs 13 and 14 of an analog comparator 15, of which the output voltage at 16, proportional or equal to the absolute value of the difference between the voltages at 1 1 and 12, is applied to a threshold circuit 17 which provides an alarm signal on its output 18 when the voltage at 16 exceeds a predetermined value, representative of the unavailability of the battery 1.
L'invention n'est bien entendu pas limitée à l'exemple de réalisation qui vient d'être décrit. La batterie peut être divisée, en ce qui concerne la mesure de son ou de ses paramètres, en plus de deux parties, égales ou non. D'autres paramètres électriques peuvent être utilisés pour la mesure, ces paramètres étant simples ou multiples et comprenant ou ne comprenant pas la résistance interne. Le contrôle peut être permanent, comme c'est le cas dans l'exemple décrit, ou séquentiel. The invention is of course not limited to the embodiment which has just been described. The battery can be divided, as regards the measurement of its or its parameters, into more than two parts, equal or not. Other electrical parameters can be used for the measurement, these parameters being single or multiple and comprising or not including the internal resistance. The control can be permanent, as is the case in the example described, or sequential.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8702723A FR2611314A3 (en) | 1987-02-19 | 1987-02-19 | Method and device for monitoring the reserve of a storage battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8702723A FR2611314A3 (en) | 1987-02-19 | 1987-02-19 | Method and device for monitoring the reserve of a storage battery |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2611314A3 true FR2611314A3 (en) | 1988-08-26 |
Family
ID=9348453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8702723A Pending FR2611314A3 (en) | 1987-02-19 | 1987-02-19 | Method and device for monitoring the reserve of a storage battery |
Country Status (1)
Country | Link |
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FR (1) | FR2611314A3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010334A1 (en) * | 1989-02-21 | 1990-09-07 | Moli Energy Limited | Improvement of safety of batteries containing parallel arrays of rechargeable lithium cells |
FR2694978A1 (en) * | 1992-08-21 | 1994-02-25 | Btech Inc | Online battery impedance measurement system. |
EP1037063A1 (en) * | 1999-03-12 | 2000-09-20 | Toyota Jidosha Kabushiki Kaisha | Fault determination apparatus and fault determination method for a battery set |
US6635379B2 (en) | 2000-02-22 | 2003-10-21 | Matsushita Electric Industrial Co., Ltd. | Battery sealing inspection method |
GB2461350B (en) * | 2007-12-27 | 2011-03-30 | Hitachi Ltd | Battery control method and system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2319983A1 (en) * | 1975-07-30 | 1977-02-25 | METHOD AND DEVICE FOR CONTROL OF AN ACCUMULATOR BATTERY | |
US4316185A (en) * | 1980-07-17 | 1982-02-16 | General Electric Company | Battery monitor circuit |
EP0080164A2 (en) * | 1981-11-21 | 1983-06-01 | BROWN, BOVERI & CIE Aktiengesellschaft | Control device for a battery |
-
1987
- 1987-02-19 FR FR8702723A patent/FR2611314A3/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2319983A1 (en) * | 1975-07-30 | 1977-02-25 | METHOD AND DEVICE FOR CONTROL OF AN ACCUMULATOR BATTERY | |
US4316185A (en) * | 1980-07-17 | 1982-02-16 | General Electric Company | Battery monitor circuit |
EP0080164A2 (en) * | 1981-11-21 | 1983-06-01 | BROWN, BOVERI & CIE Aktiengesellschaft | Control device for a battery |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010334A1 (en) * | 1989-02-21 | 1990-09-07 | Moli Energy Limited | Improvement of safety of batteries containing parallel arrays of rechargeable lithium cells |
FR2694978A1 (en) * | 1992-08-21 | 1994-02-25 | Btech Inc | Online battery impedance measurement system. |
EP1037063A1 (en) * | 1999-03-12 | 2000-09-20 | Toyota Jidosha Kabushiki Kaisha | Fault determination apparatus and fault determination method for a battery set |
US6477024B1 (en) | 1999-03-12 | 2002-11-05 | Toyota Jidosha Kabushiki Kaisha | Fault determination apparatus and fault determination method for a battery set |
US6635379B2 (en) | 2000-02-22 | 2003-10-21 | Matsushita Electric Industrial Co., Ltd. | Battery sealing inspection method |
GB2461350B (en) * | 2007-12-27 | 2011-03-30 | Hitachi Ltd | Battery control method and system |
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