WO2012069723A2 - Method of controlling the charging of a lead starting battery, the regulating value of which corresponds to a partial charge - Google Patents

Method of controlling the charging of a lead starting battery, the regulating value of which corresponds to a partial charge Download PDF

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Publication number
WO2012069723A2
WO2012069723A2 PCT/FR2011/052539 FR2011052539W WO2012069723A2 WO 2012069723 A2 WO2012069723 A2 WO 2012069723A2 FR 2011052539 W FR2011052539 W FR 2011052539W WO 2012069723 A2 WO2012069723 A2 WO 2012069723A2
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WO
WIPO (PCT)
Prior art keywords
charge
battery
value
charging
temperature
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PCT/FR2011/052539
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French (fr)
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WO2012069723A3 (en
Inventor
Emmanuelle Lancelle Beltran
Christine Chabot Petrault
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Peugeot Citroen Automobiles Sa
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Publication of WO2012069723A2 publication Critical patent/WO2012069723A2/en
Publication of WO2012069723A3 publication Critical patent/WO2012069723A3/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • 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
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H02J7/007186—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage obtained with the battery disconnected from the charge or discharge circuit
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • 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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to a method for controlling the charge of a lead-acid starter battery, whose charge regulation value corresponds to a partial charge. Such a method is used in conjunction with a controlled alternator recharging the battery during deceleration phases of the vehicle.
  • a starter battery (typically a lead-acid battery) is a battery that is adapted to deliver a relatively low voltage, usually 12 V.
  • Such batteries are used on the one hand for starting the engine of the motor vehicle, and secondly for the power of the various power consuming organs on board the vehicle. Their recharging is conventionally performed by an alternator that is driven by the engine of the vehicle.
  • the vehicle's alternator is controlled so as to allow the optimization of the charge of the battery according to its state ( and therefore energy recovery) during the deceleration phases, and then use the electrical energy in the onboard network to relieve the alternator.
  • the regulating value of the battery charge corresponds to a partial charge sufficient to guarantee a starting of the engine in all climatic conditions. This regulation value is a compromise between a gain in consumption and an aging of the battery according to its technology. In a conventional manner the regulation value is between 60% and 90% of the complete charge.
  • the invention aims to limit the premature aging of a battery despite its use in a partial state.
  • the invention thus relates to a method for controlling the charge of a lead-acid starter battery of a motor vehicle comprising a combustion engine, the charge regulation value corresponding to a partial charge of the battery, the method being characterized in that, when the combustion engine is running, a charging charge voltage is applied to the battery so as to charge it to a higher charge value than the charge control value, the value of the boost charging voltage depending on at least one of the two parameters between the temperature and the state of charge of the battery at the initiation of the charging process.
  • the boosted charge makes it possible to have a battery having regularly a high charge (the highest possible, if possible 100%) whose value depends on the temperature and the state of charge of the battery when the battery is charged. initiation of the boost load, the boosted load voltage and the duration of this load.
  • Figure 1 shows different charging zones of a lead-acid battery on a charging voltage diagram as a function of battery temperature
  • Figure 2 illustrates the determination of the boost charge voltage of a lead-acid battery as a function of battery temperature and state of charge
  • FIG. 3 illustrates, as a function of time, the state of charge of a battery whose charge is controlled according to a conventional control method whose charge regulation value corresponds to a partial charge;
  • FIG. 4 illustrates, as a function of time, the state of charge of a battery whose charge is controlled according to the method of the present invention whose charge regulation value corresponds to a partial charge
  • Figure 5 is an enlargement of the area V of Figure 4.
  • a lead-acid starter battery (here, 1 2 V) used for starting the combustion engine of a vehicle is associated with a controlled alternator (here, according to the "Volt control" strategy of the applicant) to charge the battery during the deceleration phases of the vehicle. More specifically, the charge regulation value of the battery charge control method corresponds to a partial charge (SOC regul).
  • FIG. 3 schematically illustrates the state of charge of a battery in time.
  • the charge of the battery is controlled according to a conventional control method at a regulated SOC charge regulation value.
  • This regulated SOC regulation value ensures that the engine starts in all climatic conditions.
  • the charge of the battery constantly fluctuates around the regulation value: the battery is charged as soon as the vehicle is in the deceleration phase and discharged according to the electrical needs of the on-board electrical system, This is represented by the increasing and decreasing portions of the state of charge curve (the curve corresponds to theoretical conditions in which charge and discharge periods alternate on a regular basis).
  • a high charge voltage is applied to the battery so as to charge the battery at a higher charge value than the charge control value.
  • this value is the highest possible given the charging circumstances, at least 95%, preferably at least 98%, and if possible equal to 100% (as in the present example, such as shown in Figure 4).
  • the boosted charging voltage is applied to the battery so as to charge the battery without degrading it.
  • the value of the boosted charging voltage depends on the state of charge of the battery and its temperature.
  • Figure 1 shows the minimum curves V min and maximum V max of the charge voltage of a lead battery of 1 2 V depending on the temperature of the latter delimiting an optimum charging zone.
  • the zone A above Vsup corresponds to an overload zone where the charging voltage is too high.
  • Zone B below Vinf corresponds to a zone of underload where the charging voltage is too low.
  • Zone C situated between the two values V in f, V sup , to the left of the minimum curve V mir corresponds to a zone of underload where the acceptance of the battery is too low; and the zone D situated between the two values V inf , V sup , to the right of the maximum curve V max corresponds to an overload zone where the charge current of the battery is high and may lead to corrosion. Zones A and D correspond to an overload zone may result in over-consumption of unwanted fuel.
  • the zones E and F located between, on the one hand, the minimum curves V min and maximum V max and, on the other hand, the two values V inf , V sup correspond to the charging zones.
  • the boosted charging voltage is determined according to the temperature of the battery so as to be in one of the zones E and F.
  • the charging voltage is initiated thrust only if the battery temperature is above a minimum temperature T
  • This additional load condition is illustrated in FIG. 1 by the segment corresponding to this minimum temperature T
  • the boosted charging voltage is determined so as to be in the only zone F of FIG.
  • the boosted charging voltage is determined as a function of the temperature and state of charge of the battery, in FIG. 2.
  • This figure here comprises five curves d, C 2 , C 3 , C 4 , C 5 (by way of example), each giving a high charge value as a function of the temperature of the battery, each curve corresponding to a particular state of charge at the time of initiation of the process high load (Ci, C 2 , C 3 , C 4 and C 5 correspond to a load of 90%, 80%, 70%, 60% and 50%, respectively by way of example).
  • additional state of charge points have been added to guarantee the trade-off between the consumption gain and the aging of the battery.
  • the boosted charging voltage is applied during a long charging time T c .
  • This duration T c is large enough for the battery charge to approach (or even reach) 100%. It must also not be too long so that the charge control value of the control method remains a partial load adapted to a controlled alternator.
  • this duration T c is between 1 and 8 hours (4 hours in FIG. 5).
  • the boost charge is initiated at a frequency allowing a recharge of the lead sulfate (before the latter is in the form of large crystals) and a limitation of the acid stratification.
  • This frequency may depend on a time parameter (in the case of a vehicle used little), a kilometer parameter (in the case of a vehicle often used), or both parameters (to cover both cases ).
  • the boost charge of the battery is initiated as soon as one of the two time parameters T p and kilometer is reached.
  • the temporal parameter T p corresponds to a period of time spacing two successive pushed loads. It is preferably between 2 and 12 weeks.
  • the Telec parameter corresponds to a distance traveled by the vehicle between two successive pushed loads. This quantity is calibrated and depends on the vehicle. It is preferably between 4,000 and 150,000 km.
  • the charging duration Te can be independent of the frequency of use of this system.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to a method of controlling the charging of a lead starting battery of a motor vehicle comprising a combustion engine, the charge regulating value of which corresponds to a partial charge. According to the invention, when the combustion engine is running, a heavy charging voltage is applied to the battery so as to charge it to a heavy charge value greater than the charge regulating value, the value of the heavy charging voltage depending on at least one of the two parameters among the temperature and the state of charge of the battery on initiation of the heavy charging process.

Description

PROCEDE DE PILOTAGE DE LA CHARGE D'UNE BATTERIE DE DEMARRAGE AU PLOMB, DONT LA VALEUR DE REGULATION CORRESPOND A UNE  METHOD FOR CONTROLLING THE LOAD OF A LEAD-STARTING BATTERY, WHOSE REGULATION VALUE CORRESPONDS TO
CHARGE PARTIELLE [001 ] L'invention concerne un procédé de pilotage de la charge d'une batterie de démarrage au plomb, dont la valeur de régulation de charge correspond à une charge partielle. Un tel procédé est utilisé en liaison avec un alternateur piloté rechargeant la batterie lors des phases de décélération du véhicule.  PARTIAL LOAD [001] The invention relates to a method for controlling the charge of a lead-acid starter battery, whose charge regulation value corresponds to a partial charge. Such a method is used in conjunction with a controlled alternator recharging the battery during deceleration phases of the vehicle.
[002] De façon classique, une batterie de démarrage (typiquement, une batterie au plomb) est une batterie qui est adaptée à délivrer une tension relativement basse, usuellement 12 V. De telles batteries sont utilisées d'une part pour le démarrage du moteur du véhicule automobile, et d'autre part pour l'alimentation des différents organes consommateurs d'électricité embarqués à bord du véhicule. Leur recharge est classiquement réalisée par un alternateur qui est entraîné par le moteur du véhicule.  [002] Conventionally, a starter battery (typically a lead-acid battery) is a battery that is adapted to deliver a relatively low voltage, usually 12 V. Such batteries are used on the one hand for starting the engine of the motor vehicle, and secondly for the power of the various power consuming organs on board the vehicle. Their recharging is conventionally performed by an alternator that is driven by the engine of the vehicle.
[003] Afin de limiter la consommation de carburant et donc l'émission de dioxyde de carbone, dans certains véhicules, l'alternateur du véhicule est piloté de façon à permettre l'optimisation de la charge de la batterie en fonction de son état (et donc une récupération d'énergie) lors des phases de décélération, puis d'utiliser ensuite l'énergie électrique dans le réseau de bord pour soulager l'alternateur. Afin de favoriser la récupération d'énergie, la valeur de régulation de la charge de la batterie correspond à une charge partielle suffisante pour garantir un démarrage du moteur dans toutes les conditions climatiques. Cette valeur de régulation est un compromis entre un gain de consommation et un vieillissement de la batterie selon sa technologie. De façon classique la valeur de régulation est comprise entre 60 % et 90 % de la charge complète.  [003] In order to limit fuel consumption and thus the emission of carbon dioxide, in certain vehicles, the vehicle's alternator is controlled so as to allow the optimization of the charge of the battery according to its state ( and therefore energy recovery) during the deceleration phases, and then use the electrical energy in the onboard network to relieve the alternator. In order to promote energy recovery, the regulating value of the battery charge corresponds to a partial charge sufficient to guarantee a starting of the engine in all climatic conditions. This regulation value is a compromise between a gain in consumption and an aging of the battery according to its technology. In a conventional manner the regulation value is between 60% and 90% of the complete charge.
[004] L'utilisation de la batterie en charge partielle entraîne son vieillissement prématuré. Ce vieillissement est lié essentiellement, d'une part, à la stratification de l'acide sulfurique pouvant entraîner une stratification de la matière active, et, d'autre part, à l'apparition sur les électrodes de sulfate de plomb stable à gros cristaux difficilement dissoluble. Ces deux phénomènes entraînent une perte de la capacité et de la puissance de la batterie, et, en conséquence, une dégradation des performances de la récupération d'énergie par le système de pilotage de l'alternateur, et une diminution de l'aptitude de la batterie à démarrer le moteur du véhicule en toute condition.  [004] The use of the battery in partial load causes premature aging. This aging is essentially linked, on the one hand, to the stratification of sulfuric acid which can lead to stratification of the active ingredient, and, on the other hand, to the appearance on the electrodes of stable lead sulfate with large crystals. difficult to dissolve. Both of these phenomena result in a loss of battery capacity and power, and consequently a deterioration of the performance of energy recovery by the alternator control system, and a decrease in the ability of the battery to start the engine of the vehicle in any condition.
[005] L'invention vise à limiter le vieillissement prématuré d'une batterie malgré son utilisation à un état partiel. [006] L'invention porte ainsi sur un procédé de pilotage de la charge d'une batterie de démarrage au plomb d'un véhicule automobile comportant un moteur à combustion, la valeur de régulation de charge correspondant à une charge partielle de la batterie, le procédé étant caractérisé en ce que, quand le moteur à combustion est en marche, une tension de charge poussée est appliquée à la batterie de façon à la charger à une valeur de charge poussée supérieure à la valeur de régulation de charge, la valeur de la tension de charge poussée dépendant d'au moins l'un des deux paramètres entre la température et de l'état de charge de la batterie à l'initiation du processus de charge poussée. [005] The invention aims to limit the premature aging of a battery despite its use in a partial state. [006] The invention thus relates to a method for controlling the charge of a lead-acid starter battery of a motor vehicle comprising a combustion engine, the charge regulation value corresponding to a partial charge of the battery, the method being characterized in that, when the combustion engine is running, a charging charge voltage is applied to the battery so as to charge it to a higher charge value than the charge control value, the value of the boost charging voltage depending on at least one of the two parameters between the temperature and the state of charge of the battery at the initiation of the charging process.
[007] La charge poussée permet d'avoir une batterie ayant régulièrement une charge élevée (la plus élevée possible, si possible 1 00 %) dont la valeur dépend de la température et de l'état de charge de la batterie lors de l'initiation de la charge poussée, de la tension de charge poussée et de la durée de cette charge poussée.  [007] The boosted charge makes it possible to have a battery having regularly a high charge (the highest possible, if possible 100%) whose value depends on the temperature and the state of charge of the battery when the battery is charged. initiation of the boost load, the boosted load voltage and the duration of this load.
[008] Ainsi, en chargeant la batterie à près de 1 00 % (si possible à 1 00 %), les inconvénients liés à une charge partielle sont fortement diminués, voire annulés. Ainsi, la charge poussée permet de dissoudre le sulfate de plomb avant qu'il ne prenne la forme de gros cristaux et limite la stratification d'acide sulfurique. En résumé, ce procédé permet d'avoir une batterie utilisée à charge partielle présentant un vieillissement proche (éventuellement identique) à celui d'une batterie utilisée à charge complète.  [008] Thus, by charging the battery at close to 100% (if possible at 100%), the disadvantages related to a partial charge are greatly reduced or even canceled. Thus, the boosted charge dissolves the lead sulfate before it takes the form of large crystals and limits the stratification of sulfuric acid. In summary, this method makes it possible to have a battery used at partial charge having a near aging (possibly identical) to that of a battery used at full charge.
[009] D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :  [009] Other features and advantages of the invention will emerge clearly from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which:
• La figure 1 représente différentes zones de charge d'une batterie au plomb sur un schéma de tension de charge en fonction de la température de la batterie ;  • Figure 1 shows different charging zones of a lead-acid battery on a charging voltage diagram as a function of battery temperature;
• La figure 2 illustre la détermination de la tension de charge poussée d'une batterie au plomb en fonction de la température et de l'état de charge de la batterie ;  • Figure 2 illustrates the determination of the boost charge voltage of a lead-acid battery as a function of battery temperature and state of charge;
• La figure 3 illustre, en fonction du temps, l'état de charge d'une batterie dont la charge est pilotée selon un procédé de pilotage classique dont la valeur de régulation de charge correspond à une charge partielle ;  FIG. 3 illustrates, as a function of time, the state of charge of a battery whose charge is controlled according to a conventional control method whose charge regulation value corresponds to a partial charge;
· La figure 4 illustre, en fonction du temps, l'état de charge d'une batterie dont la charge est pilotée selon le procédé de la présente invention dont la valeur de régulation de charge correspond à une charge partielle ; etFIG. 4 illustrates, as a function of time, the state of charge of a battery whose charge is controlled according to the method of the present invention whose charge regulation value corresponds to a partial charge; and
• La figure 5 est un agrandissement de la zone V de la figure 4. • Figure 5 is an enlargement of the area V of Figure 4.
[0010] Une batterie de démarrage au plomb (ici, de 1 2 V) utilisée pour le démarrage du moteur à combustion d'un véhicule est associée à un alternateur piloté (ici, selon la stratégie « Volt control » du déposant) permettant de charger la batterie pendant les phases de décélération du véhicule. De façon plus précise, la valeur de régulation de charge du procédé de pilotage de la charge de la batterie correspond à une charge partielle (SOC régul). A lead-acid starter battery (here, 1 2 V) used for starting the combustion engine of a vehicle is associated with a controlled alternator (here, according to the "Volt control" strategy of the applicant) to charge the battery during the deceleration phases of the vehicle. More specifically, the charge regulation value of the battery charge control method corresponds to a partial charge (SOC regul).
[001 1 ] La figure 3 illustre schématiquement l'état de charge d'une batterie dans le temps. La charge de la batterie est pilotée selon un procédé de pilotage classique à une valeur de régulation de charge SOC régul. Cette valeur de régulation SOC régul permet de garantir un démarrage du moteur dans toutes les conditions climatiques. Conformément au procédé de pilotage classique, la charge de la batterie fluctue constamment autour de la valeur de régulation : la batterie est chargée dés que le véhicule est en phase de décélération et déchargée selon les besoins électriques du réseau de bord, Cela est représenté par les portions croissantes et décroissantes de la courbe d'état de charge (la courbe correspond à des conditions théoriques où s'alternent de façon régulière les périodes de charge et de décharge).  [001 1] Figure 3 schematically illustrates the state of charge of a battery in time. The charge of the battery is controlled according to a conventional control method at a regulated SOC charge regulation value. This regulated SOC regulation value ensures that the engine starts in all climatic conditions. According to the conventional control method, the charge of the battery constantly fluctuates around the regulation value: the battery is charged as soon as the vehicle is in the deceleration phase and discharged according to the electrical needs of the on-board electrical system, This is represented by the increasing and decreasing portions of the state of charge curve (the curve corresponds to theoretical conditions in which charge and discharge periods alternate on a regular basis).
[0012] Selon l'invention, quand le moteur à combustion est en marche, une tension de charge poussée est appliquée à la batterie de façon à charger la batterie à une valeur de charge poussée supérieure à la valeur de régulation de charge. De préférence, cette valeur est la plus élevée possible compte tenu des circonstances de charge, au moins égale à 95 %, de préférence au moins égale à 98 %, et si possible égale à 1 00 % (comme dans le présent exemple, tel qu'illustré à la figure 4). According to the invention, when the combustion engine is running, a high charge voltage is applied to the battery so as to charge the battery at a higher charge value than the charge control value. Preferably, this value is the highest possible given the charging circumstances, at least 95%, preferably at least 98%, and if possible equal to 100% (as in the present example, such as shown in Figure 4).
[0013] La tension de charge poussée est appliquée à la batterie de façon à charger cette dernière sans la dégrader. Ainsi, la valeur de la tension de charge poussée dépend de l'état de charge de la batterie et de sa température.  The boosted charging voltage is applied to the battery so as to charge the battery without degrading it. Thus, the value of the boosted charging voltage depends on the state of charge of the battery and its temperature.
[0014] La figure 1 représente les courbes minimale Vmin et maximale Vmax de la tension de charge d'une batterie au plomb de 1 2 V en fonction de la température de cette dernière délimitant une zone de charge optimale. Ces deux courbes Vmir„ Vmax et trois valeurs Vinf, Vsup et T|im délimitent le plan en six zones A, B, C, D, E, F. La zone A située au-dessus de Vsup correspond à une zone de surcharge où la tension de charge est trop élevée. La zone B située en dessous de Vinf correspond à une zone de sous charge où la tension de charge est trop faible. La zone C située entre les deux valeurs Vinf, Vsup, à gauche de la courbe minimale Vmir, correspond à une zone de sous charge où l'acceptance de la batterie est trop faible ; et la zone D située entre les deux valeurs Vinf, Vsup, à droite de la courbe maximale Vmax correspond à une zone de surcharge où le courant de charge de la batterie est élevé et peut entraîner de la corrosion. Les zones A et D correspondent à une zone de surcharge pouvant entraîner une surconsommation de carburant non souhaité. Enfin, les zones E et F situées entre, d'une part, les courbes minimale Vmin et maximale Vmax et, d'autre part, les deux valeurs Vinf, Vsup correspondent aux zones de charge. De préférence, la tension de charge poussée est déterminée en fonction de la température de la batterie de façon à être dans l'une des zones E et F. Figure 1 shows the minimum curves V min and maximum V max of the charge voltage of a lead battery of 1 2 V depending on the temperature of the latter delimiting an optimum charging zone. These two curves V mir "V max and three values V in f, V sup and T | im delimit the plane in six zones A, B, C, D, E, F. The zone A above Vsup corresponds to an overload zone where the charging voltage is too high. Zone B below Vinf corresponds to a zone of underload where the charging voltage is too low. Zone C situated between the two values V in f, V sup , to the left of the minimum curve V mir , corresponds to a zone of underload where the acceptance of the battery is too low; and the zone D situated between the two values V inf , V sup , to the right of the maximum curve V max corresponds to an overload zone where the charge current of the battery is high and may lead to corrosion. Zones A and D correspond to an overload zone may result in over-consumption of unwanted fuel. Finally, the zones E and F located between, on the one hand, the minimum curves V min and maximum V max and, on the other hand, the two values V inf , V sup correspond to the charging zones. Preferably, the boosted charging voltage is determined according to the temperature of the battery so as to be in one of the zones E and F.
[0015] Dans le présent exemple, étant donné que la capacité d'absorption de la batterie est d'autant plus faible que la température est basse et afin d'éviter une surconsommation de carburant, la tension de charge poussée n'est initiée que si la température de la batterie est supérieure à une température minimale T|im. Cette condition supplémentaire de charge est illustrée à la figure 1 par le segment correspondant à cette température minimale T|im séparant la zone E de la zone F. Ainsi, dans le présent exemple, la tension de charge poussée est déterminée de façon à se trouver dans la seule zone F de la figure 1 . In the present example, since the absorption capacity of the battery is even lower than the temperature is low and to avoid overconsumption of fuel, the charging voltage is initiated thrust only if the battery temperature is above a minimum temperature T | im . This additional load condition is illustrated in FIG. 1 by the segment corresponding to this minimum temperature T | im separating the zone E from the zone F. Thus, in the present example, the boosted charging voltage is determined so as to be in the only zone F of FIG.
[0016] De façon plus précise, dans le présent exemple, la tension de charge poussée est déterminée en fonction de la température et de l'état de charge de la batterie, par la figure 2. Cette figure comprend ici cinq courbes d , C2, C3, C4, C5 (à titre d'exemple) donnant chacune une valeur de charge poussée en fonction de la température de la batterie, chaque courbe correspondant à un état de charge particulier au moment de l'initiation du processus de charge poussée (C-i , C2, C3, C4 et C5 correspondent à une charge de 90 %, 80 %, 70 %, 60 % et 50 %, respectivement à titre d'exemple). Dans le cadre de cette application de cette stratégie, des point d'état de charge complémentaires ont été ajoutés pour garantir le compromis entre le gain de consommation et le vieillissement de la batterie. More specifically, in the present example, the boosted charging voltage is determined as a function of the temperature and state of charge of the battery, in FIG. 2. This figure here comprises five curves d, C 2 , C 3 , C 4 , C 5 (by way of example), each giving a high charge value as a function of the temperature of the battery, each curve corresponding to a particular state of charge at the time of initiation of the process high load (Ci, C 2 , C 3 , C 4 and C 5 correspond to a load of 90%, 80%, 70%, 60% and 50%, respectively by way of example). As part of this application of this strategy, additional state of charge points have been added to guarantee the trade-off between the consumption gain and the aging of the battery.
[0017] La tension de charge poussée est appliquée pendant une durée de charge poussée Tc. Cette durée Tc est suffisamment importante pour que la charge de la batterie avoisine (voire atteigne) les 100%. Elle ne doit pas non plus être trop longue afin que la valeur de régulation de charge du procédé de pilotage reste une charge partielle adaptée à un alternateur piloté. De préférence, cette durée Tc est comprise entre 1 et 8 heures (4 heures à la figure 5). The boosted charging voltage is applied during a long charging time T c . This duration T c is large enough for the battery charge to approach (or even reach) 100%. It must also not be too long so that the charge control value of the control method remains a partial load adapted to a controlled alternator. Preferably, this duration T c is between 1 and 8 hours (4 hours in FIG. 5).
[0018] La charge poussée est initiée à une fréquence permettant une recharge du sulfate de plomb (avant que ce dernier ne se présente sous la forme de gros cristaux) et une limitation de la stratification d'acide. Cette fréquence peut dépendre d'un paramètre temporel (dans le cas d'un véhicule peu utilisé), d'un paramètre kilométrique (dans le cas d'un véhicule souvent utilisé), ou de ces deux paramètres (afin de couvrir les deux cas). De préférence, la charge poussée de la batterie est initiée dès qu'un des deux paramètres temporel Tp et kilométrique est atteint. The boost charge is initiated at a frequency allowing a recharge of the lead sulfate (before the latter is in the form of large crystals) and a limitation of the acid stratification. This frequency may depend on a time parameter (in the case of a vehicle used little), a kilometer parameter (in the case of a vehicle often used), or both parameters (to cover both cases ). Of preferably, the boost charge of the battery is initiated as soon as one of the two time parameters T p and kilometer is reached.
[0019] Le paramètre temporel Tp, correspond à une période de temps espaçant deux charges poussées successives. Il est de préférence compris entre 2 et 12 semaines. Le paramètre kilométrique correspond à une distance parcourue par le véhicule entre deux charges poussées successives. Cette grandeur est calibrable et dépend du véhicule. Il est de préférence compris entre 4 000 et 150 000 km. The temporal parameter T p , corresponds to a period of time spacing two successive pushed loads. It is preferably between 2 and 12 weeks. The kilometric parameter corresponds to a distance traveled by the vehicle between two successive pushed loads. This quantity is calibrated and depends on the vehicle. It is preferably between 4,000 and 150,000 km.
[0020] Si le véhicule est équipé d'un système d'arrêt et de redémarrage automatique du moteur (par exemple, le système « Stop and Start » du déposant), le déclenchement de la charge poussée ne dégradera pas ce système. De même, la durée de charge poussée Te peut être indépendante de la fréquence d'utilisation de ce système.  If the vehicle is equipped with a system for stopping and restarting the engine automatically (for example, the "Stop and Start" system of the applicant), the triggering of the thrust will not degrade this system. Similarly, the charging duration Te can be independent of the frequency of use of this system.

Claims

REVENDICATIONS
1 . Procédé de pilotage de la charge d'une batterie de démarrage au plomb d'un véhicule automobile comportant un moteur à combustion, dont la valeur de régulation de charge (SOC régul) correspond à une charge partielle, caractérisé en ce que, quand le moteur à combustion est en marche, une tension de charge poussée est appliquée à la batterie de façon à la charger à une valeur de charge poussée supérieure à la valeur de régulation de charge (SOC régul), la valeur de la tension de charge poussée dépendant d'au moins l'un des deux paramètres entre la température et de l'état de charge de la batterie à l'initiation du processus de charge poussée. 1. A method for controlling the charge of a lead-acid starter battery of a motor vehicle having a combustion engine, whose charge regulation value (SOC regul) corresponds to a partial charge, characterized in that, when the engine when the combustion is in operation, a charging charge voltage is applied to the battery so as to charge it at a higher charge value than the charge regulation value (SOC regul), the value of the boosted charging voltage being dependent on at least one of the two parameters between the temperature and the state of charge of the battery at the initiation of the charging process.
2. Procédé de pilotage selon la revendication 1 , caractérisé en ce que la valeur de la tension de charge poussée dépend de la température de la batterie à l'initiation du processus de charge poussée et est déterminée de sorte que le couple (température de la batterie, tension de charge) soit dans l'une des deux zones E et F de la figure 1 .  2. Control method according to claim 1, characterized in that the value of the boosted charging voltage depends on the temperature of the battery at the initiation of the charging process and is determined so that the torque (temperature of the battery, charging voltage) is in one of the two zones E and F of FIG.
3. Procédé de pilotage selon la revendication 2, caractérisé en ce que le processus de charge poussée n'est initiée que si la température de la batterie est supérieure à une température minimale (T|im). 3. The driving method as claimed in claim 2, characterized in that the charging process is initiated only if the temperature of the battery is greater than a minimum temperature (T | im ).
4. Procédé de pilotage selon l'une des revendications 1 à 3, caractérisé en ce que la valeur de la tension de charge poussée dépend de l'état de charge de la batterie à l'initiation du processus de charge poussée. 4. Control method according to one of claims 1 to 3, characterized in that the value of the boosted charging voltage depends on the state of charge of the battery at the initiation of the charging process thrust.
5. Procédé de pilotage selon la revendication 4 dépendante de l'une des revendications 2 et 3, caractérisé en ce que la valeur de la tension de charge poussée est déterminée d'après les courbes de tension de charge poussée en fonction de la température de la batterie à la figure 2.  5. Driving method according to claim 4 dependent on one of claims 2 and 3, characterized in that the value of the boosted charging voltage is determined from the curves of the charging voltage boosted by the temperature of the the battery in Figure 2.
6. Procédé de pilotage selon l'une des revendications 1 à 5, caractérisé en ce que le processus de charge poussée est appliqué pendant une durée de charge poussée (Tc) comprise entre 1 et 8 heures. 6. Control method according to one of claims 1 to 5, characterized in that the charging process is applied during a charging period (T c ) of between 1 and 8 hours.
7. Procédé de pilotage selon l'une des revendications 1 à 6, caractérisé en ce que le processus de charge poussée est initié selon une fréquence d'initiation de charge poussée dépendant d'au moins l'un des deux paramètres entre un paramètre temporel (Tp) correspondant à une période de temps espaçant deux processus successifs de charge poussée et un paramètre kilométrique correspondant à une distance parcourue par le véhicule entre deux processus successifs de charge poussée. 7. Control method according to one of claims 1 to 6, characterized in that the charge charging process is initiated according to a thrust initiation frequency dependent on at least one of the two parameters between a time parameter (T p ) corresponding to a period of time spacing two successive processes of heavy load and a mileage parameter corresponding to a distance traveled by the vehicle between two successive processes of heavy load.
8. Procédé de pilotage selon la revendication 7, caractérisé en ce que la charge poussée de la batterie est initiée dès qu'un des deux paramètres temporel (Tp) et kilométrique est atteint 8. Control method according to claim 7, characterized in that the boost charge of the battery is initiated as soon as one of the two time parameters (T p ) and kilometer is reached
9. Procédé de pilotage selon l'une des revendications 7 et 8, caractérisé en ce que le paramètre temporel (Tp) est compris entre 2 et 12 semaines. 9. Control method according to one of claims 7 and 8, characterized in that the time parameter (T p ) is between 2 and 12 weeks.
10. Procédé de pilotage selon l'une des revendications 7 à 9, caractérisé en ce que le paramètre kilométrique est compris entre 4 000 et 150 000 km. 10. Driving method according to one of claims 7 to 9, characterized in that the kilometer parameter is between 4 000 and 150 000 km.
1 1 . . Procédé de pilotage selon l'une des revendications 1 à 10, caractérisé en ce que la valeur de la charge poussée est supérieure à 95 %.  1 1. . Driving method according to one of claims 1 to 10, characterized in that the value of the thrust load is greater than 95%.
PCT/FR2011/052539 2010-11-24 2011-10-28 Method of controlling the charging of a lead starting battery, the regulating value of which corresponds to a partial charge WO2012069723A2 (en)

Applications Claiming Priority (2)

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FR1059660A FR2967824B1 (en) 2010-11-24 2010-11-24 METHOD FOR CONTROLLING THE LOAD OF A LEAD STARTER BATTERY, WHOSE REGULATION VALUE CORRESPONDS TO A PARTIAL LOAD
FR1059660 2010-11-24

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Cited By (1)

* Cited by examiner, † Cited by third party
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FR2998097A1 (en) * 2012-11-15 2014-05-16 Peugeot Citroen Automobiles Sa Device for preserving charge state of lead acid battery in thermal engine of car, has supervision module coupled with error determination module to modify set-point when estimator is higher than another estimator

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US7589491B2 (en) * 2006-03-10 2009-09-15 Trojan Battery Company Temperature compensation in recharging of batteries

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2998097A1 (en) * 2012-11-15 2014-05-16 Peugeot Citroen Automobiles Sa Device for preserving charge state of lead acid battery in thermal engine of car, has supervision module coupled with error determination module to modify set-point when estimator is higher than another estimator

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