• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    The invention relates to a battery of nickel-cadmium electrochemical accumulators comprising an indicator of its state of charge, said indicator comprising: sensors for making continuous measurements of voltage, current intensity and temperature of said battery, means for determining, at a time t, a charge / discharge history of said battery as a function of said measurements, data storage means in which at least one charge / discharge history, a voltage, a predefined intensity and reference temperature, as well as said measurements and the determined history, - a control unit intended to measure a voltage, an intensity and a temperature of the battery at time t, determine a mode of operation of said battery by comparison of the voltage and the intensity measured at time t, with respect to the voltage and the reference intensity, respectively, - determining a correction of the voltage and the intensity measured at time t by comparing the temperature measured at time t with respect to the reference temperature, - calculating a theoretically available capacity of said battery according to the operating mode and said correction, - determining a need for resetting the theoretically available capacity of the battery by comparing the history determined at time t with respect to the reference history. - according to said need for resetting and said theoretically available capacity, calculating a really available capacity of said battery, according to said capacity actually available, defining the state of charge of said battery, - a device for displaying said state defined charge.
    公开号:FR3043849A1
    申请号:FR1560994
    申请日:2015-11-16
    公开日:2017-05-19
    发明作者:Kevin Girard；Jean-Pierre Texier；Dominique Lacombe；Xavier Tridon；Pascal Lavaur
    申请人:SAFT Societe des Accumulateurs Fixes et de Traction SA；
    IPC主号:
    专利说明:

    Ni-Cd BATTERY PROVIDED WITH CHARGE STATUS INDICATOR
    TECHNICAL AREA
    The technical field of the present invention is that of nickel-cadmium electrochemical accumulator batteries, called Ni-Cd batteries. More particularly, the present invention relates to a Ni-Cd battery provided with an indicator of its state of charge.
    A Ni-Cd battery that operates in a rest mode, that is to say that is neither in a charging mode nor in a discharge mode, has a voltage close to 1.2 volts per element whatever its state of charge.
    It is therefore impossible for a user of a battery of this type that measures only its voltage, to know its electrical capacity really available and therefore whether it is usable or not.
    STATE OF THE ART
    In the state of the art, to evaluate the theoretically available electrical capacity of a Ni-Cd battery, it is known to teach US4949046A which discloses an indicator of the charge rate of such a battery.
    In this document, the charge rate is estimated according to measurements of the voltage, the intensity and the temperature of the battery.
    Since the capacity of a battery decreases over time, these measurements are made each time the battery is fully charged and each time it is completely discharged.
    But, in fact, this indicator does not take into account the evolution of the voltage, the intensity and the temperature of the battery between two measurements and does not propose resetting at the end of charge.
    Thus, this indicator can not take into account, in particular, the self-discharge that a battery undergoes when it is in an open-circuit rest mode, or its charging / discharging conditions.
    Therefore the charge rate determined by this indicator is not accurate and therefore does not reveal the actual available capacity of the battery on which it is disposed.
    This inaccuracy can be dangerous, especially when it concerns a battery backup, intended to provide a minimum amount of energy essential to the safety of users.
    There is therefore a real need to achieve a precise and reliable indicator of the state of charge of a Ni-Cd battery.
    SUMMARY OF THE INVENTION To this end, the present invention proposes a battery of nickel-cadmium electrochemical accumulators comprising an indicator of its state of charge, said indicator comprising sensors for making continuous measurements of voltage and current intensity. electrical and temperature of said battery, means for determining at a time t, a history of charging / discharging said battery according to said measurements, data storage means in which are stored at least one load history / discharge, a predetermined voltage, a current and a reference temperature, as well as said measurements and the determined history, a control unit intended to measure a voltage, an intensity and a temperature of said battery at time t, to determine a mode of operation of said battery by comparing the voltage and the intensity measured at time t, screw the voltage and the reference current, respectively, determining a correction of the voltage and the intensity measured at time t by comparison of the temperature measured at time t, vis-à-vis screw of the reference temperature, calculating a theoretically available capacity of said battery according to the operating mode and said correction, determine a need for resetting the theoretically available capacity of the battery by comparing the determined history to the instant t in relation to the reference history, according to said need for resetting and said theoretically available capacity, calculating a really available capacity of said battery, according to said capacity actually available, defining the state of charge of said battery, a device for displaying said defined state of charge.
    Thanks to these provisions, the indicator according to the invention permanently monitors the battery on which it is disposed and thus precisely determines the actual available capacity of said battery to be displayed.
    According to particular characteristics of this battery, the charge state indicator of said battery is intended to detect an end of charge of said battery according to the determined history of said battery, the determination of the theoretically available capacity of said battery battery being made after said end of charge detection.
    With these provisions, a user of the battery can determine whether it can be used immediately or whether it needs to be recharged or reconditioned.
    As a reminder, repackaging a battery is a set of charge / discharge sequences to rebalance the capabilities of its positive and negative electrodes, which allows it to recover 100% of its capacity.
    According to other particular characteristics of this battery, the reference history and the determined history include data relating to an average temperature of the battery, and / or the depth of at least one previous discharge of said battery, and / or the time spent in self-discharge in an open circuit operating mode, and / or the number of times it has been charged and / or discharged.
    Thanks to these provisions, the accuracy of the determination of the need for registration is increased.
    According to still other particular characteristics of this battery, it further comprises a water filling circuit, the reference history and the determined history include data relating to its water consumption.
    Thanks to these provisions, the accuracy of the determination of the need for resetting and the definition of the state of charge of the battery are improved.
    According to a preferred embodiment of this battery, the charge state indicator of said battery is further intended to calculate an absolute charge rate of said battery by dividing the actually available capacity by a predetermined nominal capacity of said battery, define the state of charge of said battery as being the absolute charge rate. With these provisions, a battery user can estimate with the naked eye the actual available capacity of said battery and judge whether it is sufficient or not for a given future use.
    According to another embodiment of this battery, the charge state indicator of said battery is also intended to compare a minimum capacity necessary for future use of said battery to the actual available capacity of said battery, said minimum capacity being predefined, define the state of charge of said battery as being sufficient if said capacity actually available is strictly greater than said minimum capacity, insufficient if said capacity actually available is less than or equal to said minimum capacity.
    Thanks to these provisions, a user of the battery can very quickly know if he can use said battery or must choose another battery.
    According to yet another embodiment of this battery, the charge state indicator of said battery is further intended to compare a predefined threshold of the actual available capacity of said battery to the capacity of said battery available, define the state charging said battery as being sufficient if the capacity actually available is strictly greater than said threshold, insufficient if the capacity actually available is less than or equal to said threshold.
    Thanks to these provisions, a user of the battery can very quickly know if he can use said battery or must choose another battery.
    According to yet another embodiment of this battery, the charge state indicator of said battery is further intended to determine a discharge depth and a relative discharge rate of said battery, compare a relative discharge rate threshold predefined said battery to said relative discharge rate, define the charge state of said battery to be sufficient if the relative discharge rate is strictly less than said threshold, insufficient if the relative discharge rate is greater than or equal to said threshold. Thanks to these provisions, a user of the battery can very quickly know if he can use said battery or must choose another battery.
    According to still other particular characteristics of this battery, the device for displaying the state of charge is either binary if said state of charge is defined as being sufficient or insufficient, or graduated if said state of charge is defined as being a absolute charge rate. The inventors have determined that these dipositions were optimal.
    According to still other particular characteristics of this battery, the means for measuring the intensity of the electric current of said battery comprise a shunt, the means for measuring the temperature of said battery comprise a CTN type thermistor.
    The inventors have determined that these dipositions were optimal. The subject of the invention is also a management system comprising at least one battery according to the invention, a control device remote from the state of charge of the at least one battery, the charging state indicator of the battery. at least one battery being connected, via a communication device, to the control device.
    Thanks to these provisions, a user of this system can optimize the management of a battery stock according to the invention. The subject of the invention is also a method for indicating a state of charge of a battery of nickel-cadmium electrochemical accumulators according to the invention, said method comprising steps of continuous measurements of voltage and intensity of the electric current and temperature of said battery, determination at a time t of a history of charging / discharging said battery according to said measurements, measuring a voltage, an intensity and a temperature of said battery to the instant t, determining a mode of operation of said battery by comparing the voltage and current measured at time t, vis-à-vis the voltage and the reference intensity, respectively, determination a correction of the voltage and the intensity measured at time t by comparison of the temperature measured at time t, with respect to the reference temperature, calculation of a capacitance theoretically available to said battery according to the operating mode and said correction, determining a need for resetting the theoretically available capacity of the battery by comparing the determined history at time t with respect to the reference history, as a function of said need for resetting and said theoretically available capacity, calculating a really available capacity of said battery, as a function of said actually available capacity of said battery, definition of the state of charge of said battery battery, display of said state of charge defined.
    The advantages of this method, being similar to those of the battery according to the invention, are not recalled here.
    BRIEF DESCRIPTION OF THE FIGURES Other features and advantages of the invention will appear on reading the following description of three preferred embodiments of the invention, given by way of example and with reference to the appended figures which show: FIG. 1, a diagram of an exemplary Ni-Cd battery according to the invention; FIG. 2 is a representation, in the form of a logic diagram, of an exemplary method of indicating a state of charge of a battery according to the invention. In the remainder of the description, the elements that are identical or of identical function bear the same reference sign. For the sake of brevity of the present description, the elements identical to the various examples are not described with respect to each of these examples. In other words, only the differences between the different examples are described in detail, the common elements being described with regard to a single example.
    Furthermore, in the remainder of the description, the numerical values mentioned, although not limiting, have proved to the tests as providing the most advantageous results.
    DESCRIPTION OF EMBODIMENTS
    FIG. 1 represents an exemplary embodiment of a battery 10 according to the invention. The battery 10 comprises nickel-cadmium Ni-Cd electrochemical accumulators and an indicator of its state of charge. The invention therefore also relates to the state of charge indicator of a Ni-Cd battery according to the invention. The indicator according to the invention comprises sensors 20, 30 and 40 for measuring the voltage and the intensity of the electric current and the temperature of the battery 10, means for determining, at a time t, a history Ht of charge / discharge of the battery 10 according to said measurements, data storage means, a control unit, a device 50 for displaying the state of charge of the battery 10.
    In the example, the battery 10 further comprises a water filling circuit. In a first example, the storage means and the control unit are embodied by a PIC microcontroller (Peripheral Interface Controller, in English).
    In a second example, the storage means are embodied by a removable storage memory card, for example an SD (Secure Digital) card. Typically, the display device 50 of the state of charge of the battery 10 is either binary if said state of charge is defined as being sufficient or insufficient, or graduated if said state of charge is defined as being an absolute charge rate.
    In the case of a binary display device, this may for example be in the form of a red light, which is lit to indicate that the state of charge of the battery 10 is insufficient, and of a green that is lit to indicate that the state of charge of the battery 10 is sufficient.
    Typically, the means 20 for measuring the intensity I of the electric current of the battery 10 comprise a shunt replacing an inter-element connection of the battery 10 and the means 30 for measuring the temperature of said battery comprise a thermistor, for example CTN type.
    In a preferred example, the shunt used in the invention supports a nominal current of 500 amperes, has a voltage drop of 0.1 volts and a tolerance class of resistance of 0.5% so that its accuracy is 0 , 3 milliamperes. In the case of a slat shunt, care must be taken in the orientation and thickness of the slats.
    At least one load / discharge history Hr, a predetermined voltage, a current and a reference temperature, the measurements of the voltage and the intensity of the electric current and of the temperature and the determined history, are stored in the storage means of the data.
    Charge / discharge history means a set of data defined according to continuous measurements of voltage, current and temperature of the battery 10.
    Preferably, the reference history Hr and the determined history Ht at time t comprise data relating to an average temperature of the battery 10 and / or to the depth of at least one previous discharge of said battery, and or the time spent in self-discharge in an open-circuit R rest operating mode, and / or in the number of charge / discharge cycles it has performed.
    In addition, the reference history Hr and the determined history Ht at time t may comprise data relating to a ratio of the capacity loaded relative to the capacity discharged during the last cycle carried out and / or during the all the cycles performed by the battery 10.
    In the example, the reference history Hr and the determined history Ht at time t further comprise values and a water consumption threshold of the battery 10 determined in particular according to the temperature measurements. The control unit is intended to measure a voltage Ut, an intensity It and a temperature Tt of the battery 10 at the instant t, to determine a mode of operation of charge Ch or of discharge D or of rest R of said battery by comparing the voltage Ut and the intensity It measured at time t, vis-à-vis the voltage Ur and the reference intensity Ir, respectively, determining a correction of the voltage Ut and the intensity It measured at time t by comparison of the temperature Tt measured at time t, with respect to the reference temperature Tr, calculate a theoretically available capacity CTdispo of said battery according to the operating mode Ch or D or R and of said correction, determining a need for resetting Rc of the theoretically available capacitance CTdispo of the battery by comparing the history Ht determined at time t with respect to the reference history Hr, depending of said resetting requirement Rc and said theoretically available capacity, calculating the actual available capacity CRdispo of said battery, according to said actual available capacity CRdispo, setting the charging state STATload of said battery, according to said need for resetting and said theoretically available capacity, calculating the actually available capacity of said battery, according to this capacity actually available, define the state of charge of said battery.
    As a reminder, the electrical capacity of a battery is defined as the electric charge that said battery can provide under specified discharge conditions; it can be expressed in Coulombs, in Amperes-seconds or (in practice) in Ampere-hours (1 Ah = 3600 As = 3600 C).
    Concerning the measurement of the temperature Tt, the instant t can in practice last about an hour. In this case, the temperature value Tt used for determining the correction, ie the adjustment, to be applied to the current is its average during this past hour. It is important to weight the capacitance values of Ni-Cd batteries, especially when these batteries are charging.
    Typically, the control unit is of the processor, microcontroller, PLD (programmable logic device) type, FPGA (field programmable programmable array, in English), EPLD (erasable programmable logic device, in English language), CPLD (complex programmable logic device in English language), PAL (programmable array logic, in English language), or PLA (programmable logic array, in English language).
    FIG. 2 represents, in the form of a logic diagram, an exemplary method 100 for indicating the state of charge of STAT charging of the battery 10 according to the invention.
    The method 100 comprises continuous measurement steps 110 of voltage U and intensity I of the electric current and temperature T of the battery 10, determination 120 of the charging / discharging history Ht of the battery 10 at time t according to said measurements, measure 130 of the voltage Ut, of the intensity It and of the temperature Tt of said battery at the instant t, determination 145 of an operating mode Ch or D or R of said battery by comparison 140 of the voltage Ut and the intensity It measured at time t, vis-à-vis the voltage Ur and the reference intensity Ir, respectively, determining a correction of the voltage Ut and the intensity It measured at time t by comparison of the temperature Tt measured at time t, with respect to the reference temperature Tr, calculation 150 of the theoretically available capacity CTdispo of said battery according to the operating mode Ch or D or R dice terminated and said correction, determination 170 of the need for resetting Rc of the theoretically available capacity CTdispo of the battery by comparison 160 of the history Ht determined at time t with respect to the reference history Hr, in according to said resetting requirement Rc and said theoretically available capacity, calculating 180 of the actual available capacity CRdispo of the battery 10, as a function of said actually available capacity CRdispo of the battery 10, setting 190 of the state of charge state STATload of the battery 10, display 200 of said state of charge defined.
    Preferably, the method 100 further comprises a step of detecting an end of charge of the battery 10 according to the determined history Ht of said battery.
    In fact, the determination of the theoretically available capacitance CTDISPO of the battery 10 is carried out after said end of charge detection.
    Preferably, the method 100 further comprises steps of calculating a SOCabs absolute charge rate of the battery 10 by dividing the actual available capacitance CRdispo by a nominal capacity Cnom predetermined of said battery, then definition of the state of chargeSTATload of said battery as the absolute charge rate SOCabs-
    In other words, the nominal capacity Cnom of the battery 10 is its capacity actually available when it is new.
    In a first variant, the method 100 further comprises steps of comparing a minimum capacity Cmin necessary for the battery 10 to carry out a predetermined mission to the actual available capacity CRdispo of said battery, said minimum capacity being predefined, and then of definition of the state of charge STAT charging of said battery as being sufficient if the really available capacity CRdispo is strictly greater than the minimum capacity Cmin, insufficient if the actual available capacity CRdispo is less than or equal to the minimum capacity Cmin.
    In other words, the minimum capacity Cmin of a batteire 10 is its capacity necessary to correctly accomplish its predetermined mission.
    In a second variant, the method 100 furthermore comprises steps of comparing a threshold C predefined threshold of the capacity actually available of the battery 100 to the capacity of the battery CRdispo actually available, and then of defining the state of charge STAT charge of said battery being sufficient if the actual available capacity CRdispo is strictly greater than threshold Cseuil, insufficient if the actual available capacity CRdispo is less than or equal to said threshold Cseuil.
    In other words, the capacity C threshold of a battery 10 is its minimum capacity in absolute terms, that is to say without taking any future use whatsoever.
    In a third variant, the method 100 further comprises steps of determining a discharge depth and a relative discharge rate SOCdischarge of the battery 10, for comparing a relative discharge threshold threshold SOCseuil predefined said battery at said relative discharge rate SSCdischarge, and then setting the state of charge SATload of said battery as being sufficient if the relative discharge rate SOCdischarge is strictly lower than the threshold SOCseuil, insufficient if the relative discharge rate SOCdischarge is greater than or equal to at the threshold SOCseuil.
    To determine a mode of operation of the battery 10, the intensity It of said battery is compared with a predefined load intensity threshold Ir, and if said intensity It is greater than said intensity threshold Ir, the battery is considered to be operating in a charging mode Ch, if said intensity It is lower than said intensity threshold Ir, it is compared with a predefined discharge intensity threshold.
    If the intensity It of the battery 10 is lower than the discharge intensity threshold Ir, it is considered that said battery operates in a discharge mode D.
    If the intensity It of the battery 10 is greater than the discharge intensity threshold Ir, the voltage Ut of said battery is compared with a discharge voltage threshold Ur.
    If the voltage Ut of the battery 10 is lower than the discharge voltage threshold Ur, it is considered that said battery operates in a rest mode R.
    If the voltage Ut of the battery 10 is greater than the discharge voltage threshold Ur, it is considered that said battery operates in a charging mode Ch. The invention also relates to a management system comprising at least one, typically a plurality of, battery (s) 10 and remote control device of the state of charge STATload of the at least one battery. The state of charge indicator of Tau at least one battery 10 is then connected, via a communication means, to the remote control device, for example, an Internet or intranet network server.
    Preferably, this means of communication is wireless and operates for example by Wi-Fi (Wireless Fidelity, in English), Bluetooth, or wireless telecommunications network (possibly a SIGFOX low-speed network), etc.
    This connection can also be made on any wired network specific to the user, respecting the communication protocol of said network.
    This communication means can transfer to the network server, autonomously, regularly and periodically, a set of measured or calculated information of said battery, which can include: a voltage, an intensity, a temperature, a state of charge, a consumption of water.
    The management system may also be able to transfer to the network server at a specific moment, an alert to the user, on detection of the achievement of a predefined threshold, for example, a threshold of voltage, intensity, d state of charge, water consumption or detection of a need for repackaging.
    Of course, the present invention is not limited to the examples and embodiments described and shown, but it is capable of numerous variants accessible to those skilled in the art.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    A battery (10) for electrochemical nickel-cadmium accumulators having an indicator of its state of charge (STATload), said indicator comprising sensors (20; 30; 40) for performing continuous measurements (110) of voltage (U). ) and intensity (I) of the electric current and temperature (T) of said battery, means for determining (120) at a time t of a history (Ht) of charge / discharge of said battery according to said measurements , data storage means in which at least one load / discharge history (Hr), a predefined voltage (Ur), a prescribed intensity (Ir) and a reference temperature (R) are stored, the measurements and the history determined (HT), a control unit for measuring (130) a voltage (Ut), an intensity (It) and a temperature (Tt) of said battery at time t, determining (145) a mode of operation ( Ch; D; R) of said battery by comparison (140) of the voltage (Ut) and intensity (It) measured at time t, vis-à-vis the reference voltage (Ur) and intensity (Ir), respectively, determining (155) a voltage correction (Ut). ) and the intensity (It) measured at time t by comparison (135) of the temperature (Tt) measured at time t, with respect to the reference temperature (Tr), calculate (150 ) a theoretically available capacity (CTdispo) of said battery as a function of the operating mode (Ch; D; R) and the correction, as well as the voltage (Ut) and the intensity (It) measured at time t, determine (170) a need for resetting (Rc) the theoretically available capacitance (CTdispo) of the battery by comparing (160) the history (Ht) determined at time t with respect to the reference history (Hr), according to the need for resetting (Rc) and the theoretically available capacity , calculating (180) a truly available capacity (CRdispo) of the battery, according to said actually available capacity (CRdispo), defining (190) the state of charge (STATload) of said battery, a device (50) of displaying (200) said defined state of charge.
    [2" id="c-fr-0002]
    2. Battery (10) according to claim 1, characterized in that the charge state indicator of said battery is for detecting a charge end of said battery according to the determined history (Ht) of said battery , the determination of the theoretically available capacity (CTdispo) of said battery being performed after said end of charge detection.
    [3" id="c-fr-0003]
    3. Battery (10) according to claim 1 or 2, characterized in that the reference history (Hr) and the determined history (Ht) comprise data relating to an average temperature of the battery (10), and / or the depth of at least one preceding discharge of said battery, and / or the time it has spent in self-discharge in an open-circuit (R) operating mode of operation, and / or the number of times it has been loaded and / or unloaded.
    [4" id="c-fr-0004]
    4. Battery (10) according to any one of claims 1 to 3, characterized in that it further comprises a water filling circuit, the reference history (Hr) and the determined history (Ht) comprise data relating to the water consumption of said battery.
    [5" id="c-fr-0005]
    5. Battery (10) according to any one of claims 1 to 4, characterized in that the state of charge indicator (STATELoad) of said battery is further intended to calculate an absolute charge rate (SOCabs) of said battery by dividing the actual available capacity (CRdispo) by a predetermined nominal capacity (Cnom) of said battery, defining the state of charge of said battery as being the absolute charge rate (SOCabs).
    [6" id="c-fr-0006]
    6. Battery (10) according to any one of claims 1 to 4, characterized in that the state of charge indicator (STATELoad) of said battery is further intended to compare a minimum capacity (Cmin) necessary for a future use of said battery to the actual available capacity (CRdispo) of said battery, said minimum capacity being predefined, define the state of charge (STATload) of said battery as being sufficient if said capacity actually available (CRdispo) is strictly greater than said minimum capacity (Cmin), insufficient if said capacity actually available (CRdispo) is less than or equal to said minimum capacity (Cmin).
    [7" id="c-fr-0007]
    7. Battery (10) according to any one of claims 1 to 4, characterized in that the state of charge indicator (STATELoad) of said battery is further intended to compare a threshold (Cseuil) predefined capacity actually available from said battery to the capacity REALLY available (CRdispo) of said battery, set the state of charge (STATload) of said battery as being sufficient if the capacity actually available (CRdispo) is strictly greater than said threshold (Cseuil), insufficient if the capacity actually available (CRdispo) is less than or equal to said threshold (Cseuil).
    [8" id="c-fr-0008]
    8. Battery (10) according to any one of claims 1 to 4, characterized in that the state of charge indicator (STATELoad) of said battery is further intended to determine a depth of discharge and a discharge rate relative (SOCdischarge) of said battery, comparing a predicted relative discharge rate threshold (SOCseuil) of said battery to said relative discharge rate (SOCdischarge), defining the state of charge (STATload) of said battery as being sufficient if the rate relative discharge (SOCdischarge) is strictly below said threshold (SOCseuil), insufficient if the relative discharge rate (SOCdischarge) is greater than or equal to said threshold (SOCseuil).
    [9" id="c-fr-0009]
    9. Battery (10) according to any one of claims 1 to 8, characterized in that the display device (50) of the state of charge (STATELoad) is either binary if said state of charge is defined as being sufficient or insufficient, or graduated if said state of charge is defined as being an absolute charge rate (SOCabs).
    [10" id="c-fr-0010]
    10. Battery (10) according to any one of claims 1 to 9, characterized in that the measuring means (20) of the intensity (I) of the electric current of said battery comprises a shunt, the measuring means ( 30) of the temperature (T) of said battery comprises a CTN type thermistor.
    [11" id="c-fr-0011]
    11. Management system comprising at least one battery (10) according to any one of claims 1 to 9, a remote control device of the state of charge (STAToad) of the at least one battery, the indicator of state of charge of the at least one battery being connected, via a communication device, to said control device.
    [12" id="c-fr-0012]
    A method (100) for indicating a state of charge (STAT charge) of a battery (10) of electrochemical nickel-cadmium accumulators according to any one of claims 1 to 10, said method comprising steps of continuous measurements (110) of voltage (U) and intensity (I) of the electric current and temperature (T) of said battery, determination (120) at a time t of a history (Ht) of charge / discharge of said battery according to said measurements, measuring (130) a voltage (Ut), an intensity (It) and a temperature (Tt) of said battery at time t, determining (145) a operating mode (Ch; D; R) of said battery by comparing (140) the voltage (Ut) and the intensity (It) measured at time t, with respect to the voltage (Ur) and the reference intensity (Ir), respectively, determining (155) a correction of the voltage (Ut) and of the intensity (IT) measured at the instant t by comparing (135) the temperature (Tt) measured at time t, with respect to the reference temperature (Tr), calculating (150) a theoretically available capacity (CTdispo) of said battery according to the operating mode (Ch; D; R) and said correction, determining (170) a need for resetting (Rc) the theoretically available capacitance (CTdispo) of the battery by comparing (160) the history (Ht) determined at time t with respect to the reference history (Hr), as a function of said resetting requirement (Rc) and said theoretically available capacity, computing (180) a really available capacity (CRdispo) of said battery, as a function of said actual available capacity (CRdispo) of said battery, setting (190) of the state of charge state (STATload) of said battery, display (200) of said defined state of charge.
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    US20170141436A1|2017-05-18|
    US10910676B2|2021-02-02|
    FR3043849B1|2017-12-08|
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    EP0225106A1|1985-11-19|1987-06-10|British Aerospace Public Limited Company|Battery state of charge indicator|
    DE29724016U1|1996-07-10|1999-10-14|Muntermann Axel|Accumulator and charger for accumulator|
    US20020193955A1|1999-04-08|2002-12-19|Bertness Kevin I.|Battery test module|
    DE10056972A1|2000-11-17|2002-05-23|Bosch Gmbh Robert|Battery, especially a motor vehicle battery, has at least one battery cell with electrolyte and partially integral device for battery condition detection, especially in battery housing|
    EP2317598A1|2009-09-08|2011-05-04|Samsung SDI Co., Ltd.|Battery pack comprising a charge and discharge switch|
    US20150042285A1|2012-03-02|2015-02-12|ropa development GmbH|Supply network component for a supply network|
    EP2924454A1|2014-03-17|2015-09-30|Commissariat A L'energie Atomique Et Aux Energies Alternatives|Method for estimating and resetting of the state of charge of a battery cell|
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    DE102013211386B4|2013-06-18|2016-09-01|Infineon Technologies Ag|Power semiconductor module with a power electronic circuit and an arrangement for measuring and transmitting measured data|
    US20160162268A1|2014-12-08|2016-06-09|Nec Energy Solutions, Inc.|Serial protocol communications between a computerized user device and a battery module|US11063448B2|2019-09-16|2021-07-13|Zebra Technologies Corporation|Methods and system for dynamically modifying charging settings for a battery assembly|
    CN110766319A|2019-10-22|2020-02-07|东软睿驰汽车技术（沈阳）有限公司|Method and device for evaluating abuse risk of battery pack|
    CN113376531A|2021-04-22|2021-09-10|国网浙江省电力有限公司乐清市供电公司|Battery voltage and current acquisition system|
    法律状态:
    2016-11-04| PLFP| Fee payment|Year of fee payment: 2 |
    2017-05-19| PLSC| Publication of the preliminary search report|Effective date: 20170519 |
    2017-11-02| PLFP| Fee payment|Year of fee payment: 3 |
    2018-11-07| PLFP| Fee payment|Year of fee payment: 4 |
    2019-11-04| PLFP| Fee payment|Year of fee payment: 5 |
    2020-11-03| PLFP| Fee payment|Year of fee payment: 6 |
    2021-11-05| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1560994A|FR3043849B1|2015-11-16|2015-11-16|NI-CD BATTERY WITH CHARGE STATUS INDICATOR|FR1560994A| FR3043849B1|2015-11-16|2015-11-16|NI-CD BATTERY WITH CHARGE STATUS INDICATOR|
    US15/351,565| US10910676B2|2015-11-16|2016-11-15|Ni—Cd battery with a state of charge indicator|
    EP16198997.5A| EP3168924B1|2015-11-16|2016-11-15|Ni-cd battery with a state-of-charge indicator|
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