METHOD FOR DETERMINING A STATE OF CHARGE OF AN ELECTRIC ENERGY STORE, ELECTRIC ENERGY STORE, AND DEVICE
The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and at least one sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, at lea...
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| creator | SCHARFF, Vincent SHASHANK, Holavanahalli NIPPER, Johannes Maximilian SARFERT, Christel ZAFIRIDIS, Triantafyllos SWOBODA, Johannes DESAI, Venkatrao COIS, Olivier SUSMITHA, Ganesh KOHN, Peter SCHNEIDER, Joerg KROENER, Christoph |
| description | The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and at least one sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, at least one maximum state of charge and at least one minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (ΔI), at least one capacitance, a correction value for the minimum state of charge (formula (IA)) and a correction value for the maximum state of charge (formula (IB)) of the electric energy store cells; the correction value for the minimum state of charge (formula (IA)) is determined by means of a minimum state of charge (formula (IIA)) on the basis of a filtered minimum open-circuit voltage (formula (III)) of the electric energy store; and the correction value for the maximum state of charge (formula (IB)) is determined by means of a maximum state of charge (formula (IIB)) on the basis of a filtered maximum open-circuit voltage (formula (III)) of the electric energy store, wherein a maximum state of charge (SOCmax) of the electric energy store is the maximum of the maximum states of charge (formula (IVA)) of all the electric energy store cells, and a minimum state of charge (SOCmin) of the electric energy store is the minimum of the minimum states of charge (formula (IVB) of all the electric energy store cells. |
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SCHNEIDER, Joerg ; KROENER, Christoph</creator><creatorcontrib>SCHARFF, Vincent ; SHASHANK, Holavanahalli ; NIPPER, Johannes Maximilian ; SARFERT, Christel ; ZAFIRIDIS, Triantafyllos ; SWOBODA, Johannes ; DESAI, Venkatrao ; COIS, Olivier ; SUSMITHA, Ganesh ; KOHN, Peter ; SCHNEIDER, Joerg ; KROENER, Christoph</creatorcontrib><description>The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and at least one sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, at least one maximum state of charge and at least one minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (ΔI), at least one capacitance, a correction value for the minimum state of charge (formula (IA)) and a correction value for the maximum state of charge (formula (IB)) of the electric energy store cells; the correction value for the minimum state of charge (formula (IA)) is determined by means of a minimum state of charge (formula (IIA)) on the basis of a filtered minimum open-circuit voltage (formula (III)) of the electric energy store; and the correction value for the maximum state of charge (formula (IB)) is determined by means of a maximum state of charge (formula (IIB)) on the basis of a filtered maximum open-circuit voltage (formula (III)) of the electric energy store, wherein a maximum state of charge (SOCmax) of the electric energy store is the maximum of the maximum states of charge (formula (IVA)) of all the electric energy store cells, and a minimum state of charge (SOCmin) of the electric energy store is the minimum of the minimum states of charge (formula (IVB) of all the electric energy store cells.</description><language>eng ; fre ; ger</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240710&DB=EPODOC&CC=EP&NR=4396595A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240710&DB=EPODOC&CC=EP&NR=4396595A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SCHARFF, Vincent</creatorcontrib><creatorcontrib>SHASHANK, Holavanahalli</creatorcontrib><creatorcontrib>NIPPER, Johannes Maximilian</creatorcontrib><creatorcontrib>SARFERT, Christel</creatorcontrib><creatorcontrib>ZAFIRIDIS, Triantafyllos</creatorcontrib><creatorcontrib>SWOBODA, Johannes</creatorcontrib><creatorcontrib>DESAI, Venkatrao</creatorcontrib><creatorcontrib>COIS, Olivier</creatorcontrib><creatorcontrib>SUSMITHA, Ganesh</creatorcontrib><creatorcontrib>KOHN, Peter</creatorcontrib><creatorcontrib>SCHNEIDER, Joerg</creatorcontrib><creatorcontrib>KROENER, Christoph</creatorcontrib><title>METHOD FOR DETERMINING A STATE OF CHARGE OF AN ELECTRIC ENERGY STORE, ELECTRIC ENERGY STORE, AND DEVICE</title><description>The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and at least one sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, at least one maximum state of charge and at least one minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (ΔI), at least one capacitance, a correction value for the minimum state of charge (formula (IA)) and a correction value for the maximum state of charge (formula (IB)) of the electric energy store cells; the correction value for the minimum state of charge (formula (IA)) is determined by means of a minimum state of charge (formula (IIA)) on the basis of a filtered minimum open-circuit voltage (formula (III)) of the electric energy store; and the correction value for the maximum state of charge (formula (IB)) is determined by means of a maximum state of charge (formula (IIB)) on the basis of a filtered maximum open-circuit voltage (formula (III)) of the electric energy store, wherein a maximum state of charge (SOCmax) of the electric energy store is the maximum of the maximum states of charge (formula (IVA)) of all the electric energy store cells, and a minimum state of charge (SOCmin) of the electric energy store is the minimum of the minimum states of charge (formula (IVB) of all the electric energy store cells.</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZEj3dQ3x8HdRcPMPUnBxDXEN8vX08_RzV3BUCA5xDHFV8HdTcPZwDHIHsxz9FFx9XJ1DgjydFVz9XIPcI4Gq_INcdXAJO_q5AE0N83R25WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BJsaWZqaWpo6GxkQoAQAPlzQq</recordid><startdate>20240710</startdate><enddate>20240710</enddate><creator>SCHARFF, Vincent</creator><creator>SHASHANK, Holavanahalli</creator><creator>NIPPER, Johannes Maximilian</creator><creator>SARFERT, Christel</creator><creator>ZAFIRIDIS, Triantafyllos</creator><creator>SWOBODA, Johannes</creator><creator>DESAI, Venkatrao</creator><creator>COIS, Olivier</creator><creator>SUSMITHA, Ganesh</creator><creator>KOHN, Peter</creator><creator>SCHNEIDER, Joerg</creator><creator>KROENER, Christoph</creator><scope>EVB</scope></search><sort><creationdate>20240710</creationdate><title>METHOD FOR DETERMINING A STATE OF CHARGE OF AN ELECTRIC ENERGY STORE, ELECTRIC ENERGY STORE, AND DEVICE</title><author>SCHARFF, Vincent ; 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in a second method step, at least one maximum state of charge and at least one minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (ΔI), at least one capacitance, a correction value for the minimum state of charge (formula (IA)) and a correction value for the maximum state of charge (formula (IB)) of the electric energy store cells; the correction value for the minimum state of charge (formula (IA)) is determined by means of a minimum state of charge (formula (IIA)) on the basis of a filtered minimum open-circuit voltage (formula (III)) of the electric energy store; and the correction value for the maximum state of charge (formula (IB)) is determined by means of a maximum state of charge (formula (IIB)) on the basis of a filtered maximum open-circuit voltage (formula (III)) of the electric energy store, wherein a maximum state of charge (SOCmax) of the electric energy store is the maximum of the maximum states of charge (formula (IVA)) of all the electric energy store cells, and a minimum state of charge (SOCmin) of the electric energy store is the minimum of the minimum states of charge (formula (IVB) of all the electric energy store cells.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | METHOD FOR DETERMINING A STATE OF CHARGE OF AN ELECTRIC ENERGY STORE, ELECTRIC ENERGY STORE, AND DEVICE |
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