DE102017212022A1 - Method for calculating a remaining operating life of a battery - Google Patents
Method for calculating a remaining operating life of a battery Download PDFInfo
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- DE102017212022A1 DE102017212022A1 DE102017212022.3A DE102017212022A DE102017212022A1 DE 102017212022 A1 DE102017212022 A1 DE 102017212022A1 DE 102017212022 A DE102017212022 A DE 102017212022A DE 102017212022 A1 DE102017212022 A1 DE 102017212022A1
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- battery
- electrochemical energy
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000032683 aging Effects 0.000 claims abstract description 8
- 238000012983 electrochemical energy storage Methods 0.000 claims abstract description 8
- 238000012935 Averaging Methods 0.000 claims abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 229910052987 metal hydride Inorganic materials 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000007784 solid electrolyte Substances 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 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
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- 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
-
- 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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
-
- 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]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
Verfahren zum Berechnen einer verbleibenden Betriebsdauer einer Batterie umfassend eine Mehrzahl von wiederaufladbaren elektrochemischen Energiespeichern mit folgenden Schritten:
a) Erfassen einer elektrischen Spannung der Batterie und/oder zumindest einer der elektrochemischen Energiespeicher;
b) Ermitteln eines Ladezustands einer Mehrzahl der elektrochemischen Energiespeicher und/oder Ermitteln eines Alterungszustands einer Mehrzahl der elektrochemischen Energiespeicher;
c) Ermitteln einer verbleibenden Energie der Mehrzahl der elektrochemischen Energiespeicher anhand des jeweiligen ermittelten Ladezustands, des jeweiligen ermittelten Alterungszustands und/oder der erfassten elektrischen Spannung;
d) Erfassen eines durch einen jeweiligen elektrochemischen Energiespeicher der Mehrzahl der elektrochemischen Energiespeicher fließenden elektrischen Stroms;
e) Ermitteln eines gesamten durch die Batterie fließenden Gesamtstroms durch Mittelwertbildung der erfassten elektrischen Ströme;
f) Ermitteln einer der Batterie entnommenen elektrischen Leistung anhand der erfassten elektrischen Spannung und des ermittelten Gesamtstroms;
g) Ermitteln der verbleibenden Betriebsdauer der Batterie anhand der ermittelten verbleibenden Energie und der entnommenen elektrischen Leistung;
A method of calculating a remaining operating life of a battery comprising a plurality of rechargeable electrochemical energy stores comprising the steps of:
a) detecting an electrical voltage of the battery and / or at least one of the electrochemical energy storage;
b) determining a state of charge of a plurality of the electrochemical energy stores and / or determining an aging state of a plurality of the electrochemical energy stores;
c) determining a remaining energy of the plurality of electrochemical energy storage based on the respective determined state of charge, the respective determined aging state and / or the detected electrical voltage;
d) detecting an electrical current flowing through a respective electrochemical energy store of the plurality of electrochemical energy stores;
e) determining a total total current flowing through the battery by averaging the detected electrical currents;
f) determining an electrical power taken from the battery based on the detected electrical voltage and the determined total current;
g) determining the remaining operating life of the battery based on the determined remaining energy and the extracted electrical power;
Description
Die Erfindung geht aus von einem Verfahren zum Berechnen einer verbleibenden Betriebsdauer einer Batterie umfassend eine Mehrzahl von wiederaufladbaren elektrochemischen Energiespeichern, einer Batterie sowie einer Verwendung der Batterie gemäß dem Oberbegriff der unabhängigen Ansprüche.The invention is based on a method for calculating a remaining service life of a battery comprising a plurality of rechargeable electrochemical energy stores, a battery and a use of the battery according to the preamble of the independent claims.
Stand der TechnikState of the art
Bekannte Verfahren zur Berechnung einer verbleibenden Betriebsdauer einer Batterie gemäß dem Stand der Technik berücksichtigen eine aktuelle Kapazität der Batterie und einen aktuellen Gesamtstrom, der durch die Batterie fließt.Known methods for calculating a remaining operating life of a battery according to the prior art take into account a current capacity of the battery and a current total current flowing through the battery.
Es ist Aufgabe der vorliegenden Erfindung, den Stand der Technik weiter zu verbessern. Diese Aufgabe wird gelöst durch die Merkmale der unabhängigen Ansprüche.It is an object of the present invention to further improve the state of the art. This object is solved by the features of the independent claims.
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorgehensweise mit den kennzeichnenden Merkmalen der unabhängigen Ansprüche weist demgegenüber den Vorteil auf, dass das Verfahren zum Berechnen einer verbleibenden Betriebsdauer einer Batterie folgende Schritte umfasst:
- a) Erfassen einer elektrischen Spannung der Batterie und/oder zumindest einer der elektrochemischen Energiespeicher;
- b) Ermitteln eines Ladezustands einer Mehrzahl der elektrochemischen Energiespeicher und/oder Ermitteln eines Alterungszustands einer Mehrzahl der elektrochemischen Energiespeicher;
- c) Ermitteln einer verbleibenden Energie der Mehrzahl der elektrochemischen Energiespeicher anhand des jeweiligen ermittelten Ladezustands und/oder des jeweiligen ermittelten Alterungszustands, und der erfassten elektrischen Spannung;
- d) Erfassen eines durch einen jeweiligen elektrochemischen Energiespeicher der Mehrzahl der elektrochemischen Energiespeicher fließenden elektrischen Stroms;
- e) Ermitteln eines gesamten durch die Batterie fließenden Gesamtstroms durch Mittelwertbildung der erfassten elektrischen Ströme;
- f) Ermitteln einer dem Energiespeicher entnommenen elektrischen Leistung anhand der erfassten elektrischen Spannung und des ermittelten Gesamtstroms;
- g) Ermitteln der verbleibenden Betriebsdauer der Batterie anhand der ermittelten verbleibenden Energie und der entnommenen elektrischen Leistung.
- a) detecting an electrical voltage of the battery and / or at least one of the electrochemical energy storage;
- b) determining a state of charge of a plurality of the electrochemical energy stores and / or determining an aging state of a plurality of the electrochemical energy stores;
- c) determining a remaining energy of the plurality of electrochemical energy storage based on the respective determined state of charge and / or the respective determined aging state, and the detected electrical voltage;
- d) detecting an electrical current flowing through a respective electrochemical energy store of the plurality of electrochemical energy stores;
- e) determining a total total current flowing through the battery by averaging the detected electrical currents;
- f) determining an electrical power taken from the energy store on the basis of the detected electrical voltage and the determined total current;
- g) determining the remaining operating life of the battery based on the determined remaining energy and the extracted electrical power.
Durch Ermittlung des gesamten durch die Batterie fließenden Gesamtstroms durch Mittelwertbildung der erfassten elektrischen Ströme kann das Nutzungsverhalten der Batterie, beispielsweise ein Fahrverhalten, besser abgebildet werden, da ein höherer elektrischer Strom eine größere Verlustleistung bewirkt und bei gleicher verbleibender Kapazität der Batterie die Betriebsdauer, beispielsweise eine Reichweite, kleiner ist.By determining the total current flowing through the battery by averaging the detected electrical currents, the usage behavior of the battery, for example a driving behavior, can be better represented, since a higher electrical current causes greater power loss and with the same remaining capacity of the battery, the operating time, for example a Reach, is smaller.
Weitere vorteilhafte Ausführungsformen sind Gegenstand der Unteransprüche.Further advantageous embodiments are the subject of the dependent claims.
Vorteilhafterweise wird anhand der ermittelten Betriebsdauer eine Reichweite des Energiespeichers ermittelt, beispielsweise eine verbleibende maximal möglich zurückzulegende Wegstrecke. Dadurch kann in Abhängigkeit der mit hoher Genauigkeit ermittelten Betriebsdauer eine praxisnahe Reichweite, beispielsweise eines Elektrofahrzeugs, ermittelt werden.Advantageously, based on the determined operating time, a range of the energy store is determined, for example, a remaining maximum distance traveled. As a result, depending on the operating time determined with high accuracy, a practical range, for example of an electric vehicle, can be determined.
Vorteilhafterweise umfasst eine Batterie eine Mehrzahl von wiederaufladbaren elektrochemischen Energiespeichern, mindestens einem Spannungssensor zur Erfassung einer elektrischen Spannung, mindestens einem Stromsensor zur Erfassung eines elektrischen Stroms und ein Steuergerät zur Durchführung des erfindungsgemäßen Verfahrens zum Berechnen einer verbleibenden Betriebsdauer einer Batterie. Dadurch kann mit einer geringen Anzahl von elektronischen Komponenten eine Betriebsdauer mit hoher Genauigkeit ermittelt werden.Advantageously, a battery comprises a plurality of rechargeable electrochemical energy stores, at least one voltage sensor for detecting an electrical voltage, at least one current sensor for detecting an electrical current, and a control device for carrying out the method according to the invention for calculating a remaining operating time of a battery. As a result, with a small number of electronic components, an operating time can be determined with high accuracy.
Ein elektrochemischer Energiespeicher der Batterie umfasst mindestens eine Lithium-Ionen-, Lithium-Schwefel-, Lithium-Luft-, Lithium-Polymer-Zelle, eine Nickel-Metallhydrid-, Blei-Säure-Batterie, einen Kondensator und/oder eine Feststoffelektrolyt-Batterie. Dadurch kann das erfindungsgemäße Verfahren vorteilhafterweise für eine Vielzahl von elektrochemischen Energiespeichern zur Berechnung einer Betriebsdauer verwendet werden.An electrochemical energy store of the battery comprises at least one lithium-ion, lithium-sulfur, lithium-air, lithium-polymer cell, a nickel-metal hydride, lead-acid battery, a capacitor and / or a solid electrolyte battery , As a result, the method according to the invention can advantageously be used for a large number of electrochemical energy stores for calculating an operating time.
Vorteilhafterweise wird das erfindungsgemäße elektrochemische Energiespeichersystem in Elektrofahrzeugen, Hybridfahrzeugen, Plug-In-Hybridfahrzeugen, Pedelecs oder E-Bikes, für portable Einrichtungen zur Telekommunikation oder Datenverarbeitung, für elektrische Handwerkzeuge oder Küchenmaschinen, sowie in stationären Speichern zur Speicherung insbesondere regenerativ gewonnener elektrischer Energie verwendet.The electrochemical energy storage system according to the invention is advantageously used in electric vehicles, hybrid vehicles, plug-in hybrid vehicles, pedelecs or e-bikes, for portable devices for telecommunications or data processing, for electric hand tools or food processors, as well as in stationary storage devices for storing in particular regeneratively obtained electrical energy.
Figurenlistelist of figures
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.
Es zeigt:
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1 ein Ablaufdiagramm einer Ausführungsform des erfindungsgemäßen Verfahrens.
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1 a flow diagram of an embodiment of the method according to the invention.
Detaillierte Beschreibung der AusführungsbeispieleDetailed description of the embodiments
Gleiche Bezugszeichen bezeichnen in allen Figuren gleiche Vorrichtungskomponenten.The same reference numerals denote the same device components in all figures.
In Schritt
In Schritt
In Schritt
Die Schritte
In Schritt
Eine der Batterie entnommene elektrische Leistung (P) wird in Schritt
Eine verbleibende Betriebsdauer der Batterie wird in Schritt
Claims (8)
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DE102017212022.3A DE102017212022A1 (en) | 2017-07-13 | 2017-07-13 | Method for calculating a remaining operating life of a battery |
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DE102017212022.3A DE102017212022A1 (en) | 2017-07-13 | 2017-07-13 | Method for calculating a remaining operating life of a battery |
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DE102017212022.3A Withdrawn DE102017212022A1 (en) | 2017-07-13 | 2017-07-13 | Method for calculating a remaining operating life of a battery |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10394007T5 (en) * | 2002-12-31 | 2006-02-02 | Midtronics, Inc., Willowbrook | Apparatus and method for predicting the remaining discharge time of a battery |
DE102014106984A1 (en) * | 2014-05-16 | 2015-11-19 | Still Gmbh | Method for determining a residual maturity of a truck |
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2017
- 2017-07-13 DE DE102017212022.3A patent/DE102017212022A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10394007T5 (en) * | 2002-12-31 | 2006-02-02 | Midtronics, Inc., Willowbrook | Apparatus and method for predicting the remaining discharge time of a battery |
DE102014106984A1 (en) * | 2014-05-16 | 2015-11-19 | Still Gmbh | Method for determining a residual maturity of a truck |
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