EP2593803A1 - Procédé pour déterminer la durée de vie probable d'au moins un élément de batterie, batterie équipée d'une pluralité d'éléments de batterie et véhicule automobile - Google Patents

Procédé pour déterminer la durée de vie probable d'au moins un élément de batterie, batterie équipée d'une pluralité d'éléments de batterie et véhicule automobile

Info

Publication number
EP2593803A1
EP2593803A1 EP11721489.0A EP11721489A EP2593803A1 EP 2593803 A1 EP2593803 A1 EP 2593803A1 EP 11721489 A EP11721489 A EP 11721489A EP 2593803 A1 EP2593803 A1 EP 2593803A1
Authority
EP
European Patent Office
Prior art keywords
battery
battery cell
frequency
determining
physical quantity
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.)
Withdrawn
Application number
EP11721489.0A
Other languages
German (de)
English (en)
Inventor
Andre Boehm
Ralf Piscol
Joachim Rischen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Samsung SDI Co Ltd
Original Assignee
Robert Bosch GmbH
Samsung SDI Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH, Samsung SDI Co Ltd filed Critical Robert Bosch GmbH
Publication of EP2593803A1 publication Critical patent/EP2593803A1/fr
Withdrawn legal-status Critical Current

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]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/22—Balancing the charge of battery modules
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • 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]
    • G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
    • 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]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a method for determining the
  • expected lifetime of at least one battery cell in which a value of at least one physical quantity acting on the battery cell and / or a number of executions of at least one process taking place in the battery cell is determined and the value of the physical quantity and / or the number of executions of the processes Basis is used to determine the expected life.
  • the present invention relates to a battery, in particular a lithium-ion battery or a nickel-metal hydride battery, which has a plurality of battery cells and at least one battery management system, wherein the battery management system is designed such, the inventive method for determining the expected life of the battery cell perform.
  • the present invention relates to a motor vehicle with a battery according to the invention.
  • a battery comprising one or more galvanic battery cells serves as an electrochemical energy store and energy converter.
  • chemical energy is converted by intercalation into electrical energy. This electrical energy can thus be requested as needed by a user.
  • battery packs use lithium-ion batteries or nickel-metal hydride batteries, which consist of a large number of series-connected electrochemical cells.
  • a battery management system including a battery condition detection for security monitoring and to serve
  • From DE 103 28 721 A1 is a method for predicting a
  • a method for determining the anticipated service life of at least one battery cell, in which The value of at least one physical quantity acting on the battery cell and / or the number of executions of at least one process taking place in the battery cell is determined and the value of the physical quantity and / or the number of executions of processes is used as the basis for determining the anticipated service life, wherein the physical quantity and / or the number of times the process is carried out in the battery cell is determined for a plurality of operating cycles and the frequency of occurrence of specific values of the physical quantity and / or the frequency of the number of times at least one specific process is stored.
  • the battery cells subjected to the method according to the invention are preferably part of a multiplicity of battery cells, as for example arranged in a single battery.
  • the method can also be carried out in such a way that a value of at least one physical quantity acting on the entire battery and / or the number of feedthroughs of at least one process occurring in the entire battery is determined and the frequency of the
  • Battery cells draw conclusions about the life of the entire battery.
  • the method according to the invention can also be used to determine the state of aging.
  • the physical size is preferably measured and the determination of the number of executions of at least one occurring in the battery cell process is preferably carried out by counting.
  • the beginning of the operating cycle is by the beginning of the activation of the battery cell and the termination of the operating cycle is by the
  • the phase of activation may comprise only one drive cycle, or a drive cycle with subsequent charging.
  • the phase of activation may also include a charge independent of a drive cycle.
  • phase of activation may also include a controlled unloading of the cell subsequent to the drive cycle to realize the
  • the so-called cell balancing include in the after-running after the driving cycle or even during the driving cycle.
  • the beginning of the operating cycle can thus be, for example, starting a motor vehicle driven by the battery cells.
  • the termination of the operating cycle may correspond to the switching off of this motor vehicle.
  • the operating cycle also includes the time of the charge.
  • the method according to the invention determines values or states of the
  • the inventive method can be applied to lithium-ion batteries as well as to nickel-metal hydride batteries
  • Charge state the output of the battery cell power or existing in the battery cell voltage. Derived from the state of charge can also be the difference between a minimum and maximum
  • Operation may be a load pulse, a discharge pulse or a controlled discharge of the cell to realize the balance of the charge states of multiple cells.
  • Charge states of several cells which is also called cell balancing, is preferably to be realized for lithium-ion battery cells. This cell balancing is used to avoid serious differences in the charge states of individual cells. It turned out that it was for
  • the cells are discharged in a controlled manner to the state of charge which corresponds to the state of charge of the least charged cell.
  • the frequency of the controlled discharge of a cell is therefore a criterion for its state of aging.
  • Those cells, the rarest are subjected to the controlled discharge, are thus those who have the lowest charge states compared to other battery cells. To increase the performance and life of the entire battery thus such cells are the first to exchange.
  • the value of the physical quantity and / or the number of executions of the operations per operating cycle is stored in at least one nonvolatile memory and the frequency of occurrence of specific values of the physical quantity and / or the frequency of execution of a specific number of processes is read from the memory ,
  • a non-volatile memory is z.
  • EEPROM an electrically erasable programmable read only memory
  • Process design is based on the simple storage over several operating cycles and the possibility of evaluating the stored values in terms of their frequency.
  • the number of occurrences of at least one particular value of a physical quantity and / or the number of executions of operations is determined over several operating cycles.
  • the number of values or feedthroughs determined per operating cycle is added to the previously determined numbers and stored.
  • the frequency of occurrence of specific values of the physical quantity and / or the frequency of execution of a specific number of processes is visually perceptible in at least one diagram.
  • a diagram are on the abscissa to enter values of the physical quantity or the number of processes and on the ordinate the frequency of occurrence of the respective value of the physical quantity or the frequency of the execution of the number of operations.
  • the method is configured such that the value of a first physical quantity or the number of executions of a first process taking place in the battery cell is stored as a function of the value of a second physical variable or a number of executions of a second process occurring in the battery cell , Again, it is provided that the physical size and / or the number of
  • Operations per cycle of operation are stored in dependence on each other in at least one non-volatile memory and the frequency of occurrence of certain values of the physical size and / or the frequency of performing a certain number of operations, which was determined by means of addition over several operating cycles, from the Memory is read out.
  • the advantage of this embodiment of the method lies in the detection of the variables as a function of one another, so that a smaller memory requirement is required and consequently the use of the non-volatile memory is easier to realize.
  • the frequency of occurrence of specific values of the physical quantities as a function of one another and / or the frequency of carrying out a specific number of processes in dependence on one another is visually perceptible in at least one three-dimensional histogram.
  • the values of the first physical quantity or the number of first operations may be plotted on the first abscissa and the values of the second physical quantity or the number of second operations may be plotted on the second abscissa.
  • the frequency of occurrence of the respective value of the physical quantity or the number of times the operations are carried out in Be dependent on each other.
  • the invention is not limited to the detection of two physical quantities in
  • Such histograms are stored and read again after a reset of the battery management system and used for further calculation, also for further addition of further frequencies of occurrence of specific values of the physical quantity and / or frequencies of execution of a certain number of operations. From the histogram, the aging state and the lifetime can be calculated by means of suitable algorithms. A significant value for the calculation may be the frequency of occurrence of a particular physical quantity or a number of operations.
  • the battery management system must be readjusted to z. For example, to vary the temperature of some cells.
  • the values derivable from the histogram can also be used immediately in the battery management system as control and / or regulation signals for the operation of the battery cell or an entire battery in order to prevent premature aging or aging
  • the values of the physical variable determined over several operating cycles and / or the number of processes taking place in the battery cell are found in a certain range of values in which experience shows that
  • the interpolation points are preferably parameterizable, that is to say that they are defined in such a way that suitable intervals are formed with regard to the statement of specific physical variables or specific numbers of processes become. It can z. For example, in areas where there is a greater frequency in general, the intervals are made shorter, thus more differentiated statements regarding the lifetime during operation of the battery cell with the values of the physical quantity in this interval or the values of the number of processes in this interval. This means that the distances between adjacent support points to each other can be different.
  • the interpolation points may also be defined at regular intervals, such as at intervals of 20 ° C.
  • interval there is a specific physical quantity or the number of processes.
  • the frequency is determined over several operating cycles.
  • Suitable time intervals are z. B. between 0.5 and 2 seconds.
  • every second is determined in which interval the value of a specific physical quantity or the number of determined ones
  • z. B the frequency of currents in a given current intensity interval as a function of temperatures in a given temperature interval of the battery cell are determined. So z. B. be determined with what frequency a current of z. B. 75 to 85% of the maximum current generated when the battery cell was operated in a temperature interval of 40 to 50 ° C.
  • a battery in particular a
  • Lithium-ion battery or a nickel-metal hydride battery provided with multiple battery cells and at least one
  • Battery management system comprises and is connectable to a drive system of a motor vehicle, wherein the battery management system is designed such that the inventive method to realize.
  • Battery cells are preferably spatially combined and interconnected circuitry.
  • the invention is supplemented by a motor vehicle, in particular an electric motor driven motor vehicle, which comprises at least one battery according to the invention, wherein the battery with a
  • the determination of the probable lifetime of at least one battery cell can be computer-aided, with the aid of a
  • a computer-readable storage medium is provided for this, on which a program is stored, which it is one
  • Data processing device allows, after it in the storage means of the
  • Data processing device has been loaded to perform the inventive method.
  • a further supplement is a method in which the computer program for carrying out the method according to the invention from an electronic data network, such as, for example, the Internet, to a data processing device connected to the data network
  • Figure 2 is a created by the inventive method three-dimensional histogram.
  • Method illustrated a diagram which exemplifies the frequency f of the occurrence of a current charging power P.
  • the actual charging power P is plotted on the abscissa and the frequency f on the ordinate. It can be seen that the value range of the current charging power P has been divided into intervals numbered 1 to 12. Each of these intervals 1 to 12 is assigned a value range of the current charging power P. The size of the value ranges can vary. From Figure 1 it can be seen that z. B. the current charging power P of the interval 5 occurred most often. It is thus visually communicable to a person that the battery cell concerned most frequently had a charging power P defined by the interval 5 over several operating cycles. That is, it occurred much more often
  • Charging power P according to the interval 5 as a maximum charging power P according to the interval 12.
  • a conclusion from this finding could be that the charging power P is often below the maximum possible charging power, so that maintenance or, where appropriate, an exchange of
  • the three-dimensional histogram shown in FIG. 2 which according to a further method alternative can be generated according to the invention, shows the frequency f of the occurrence of currents I in a specific interval as a function of temperatures T in a specific temperature interval of the relevant battery cell.
  • the current I is plotted at intervals 1 to 12.
  • the temperature T is plotted at intervals 1 to 8.
  • the frequency f is plotted. It can be seen from the three-dimensional histogram that currents I were generated by the greatest possible frequency according to the current intensity interval 3 at temperatures which correspond to the temperature interval 6. With the second largest frequency currents were generated, which are in the
  • the invention is not limited to the fact that in the three-dimensional histogram only physical quantities such. B. the current intensity I and the temperature T are displayed in dependence on each other, but it may deviate from the method of the invention are carried out such that in the histogram, the number of times of

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un procédé pour déterminer la durée de vie probable d'au moins un élément de batterie, selon lequel une valeur d'au moins une grandeur physique influant sur l'élément de batterie concerné et/ou un nombre d'exécutions d'au moins un processus intervenant dans l'élément de batterie sont déterminés et la valeur de la grandeur physique et/ou le nombre d'exécutions de processus sont utilisés comme bases pour déterminer la durée de vie probable. La grandeur physique et/ou le nombre d'exécutions de processus intervenant dans l'élément de batterie sont déterminés pour plusieurs cycles de fonctionnement et la fréquence (f) d'apparition de valeurs déterminées de la grandeur physique et/ou la fréquence (f) du nombre des exécutions d'au moins un processus déterminé sont mémorisées. L'invention concerne également une batterie, notamment une batterie lithium-ion ou une batterie nickel-hydrure métallique, ainsi qu'un véhicule automobile comprenant au moins une batterie selon l'invention.
EP11721489.0A 2010-07-14 2011-05-17 Procédé pour déterminer la durée de vie probable d'au moins un élément de batterie, batterie équipée d'une pluralité d'éléments de batterie et véhicule automobile Withdrawn EP2593803A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010031337A DE102010031337A1 (de) 2010-07-14 2010-07-14 Verfahren zur Ermittlung der voraussichtlichen Lebensdauer wenigstens einer Batteriezelle, Batterie mit einer Mehrzahl von Batteriezellen und Kraftfahrzeug
PCT/EP2011/057917 WO2012007206A1 (fr) 2010-07-14 2011-05-17 Procédé pour déterminer la durée de vie probable d'au moins un élément de batterie, batterie équipée d'une pluralité d'éléments de batterie et véhicule automobile

Publications (1)

Publication Number Publication Date
EP2593803A1 true EP2593803A1 (fr) 2013-05-22

Family

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US20130241567A1 (en) 2013-09-19
DE102010031337A1 (de) 2012-01-19
CN103119456A (zh) 2013-05-22
WO2012007206A1 (fr) 2012-01-19
JP2013537620A (ja) 2013-10-03
KR20130056284A (ko) 2013-05-29

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