Process for determining the state of charge and the peak current loadability of batteries
In a process for determining the state of charge and the peak current loadability of batteries in the currentless pauses before and after a loading phase the no-load voltages U01 and U02 are measured. From them, with allowance for battery-specific parameters, especially the time curve of the no-load...
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| creator | UBERMEIER DIETER MICHELS KARSTEN MEISSNER EBERHARD LAIG-HORSTEBROCK HELMUT DIERKER UWE |
| description | In a process for determining the state of charge and the peak current loadability of batteries in the currentless pauses before and after a loading phase the no-load voltages U01 and U02 are measured. From them, with allowance for battery-specific parameters, especially the time curve of the no-load voltage, the true battery rest voltages U001 and U002 are computed. During the loading phase the converted current quantity q is measured and from the relationship U002-U001=C1xq/Q0 the acid capacity Q0 of the battery is found. The relative state of charge SOC1 is determined from a curve of the rest voltage U00 linearized by the formula SOC1=U002/C1-C2 as a function of the state of charge of the battery from which the absolute state of charge is calculated as SOC1xQ0. From the internal resistance R1, a preassigned temperature and the last determined state of charge, a rest voltage is predicted for a later time from which, with the current necessary for starting the engine known, a pronouncement can be derived concerning the starting capacity of the battery. |
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From them, with allowance for battery-specific parameters, especially the time curve of the no-load voltage, the true battery rest voltages U001 and U002 are computed. During the loading phase the converted current quantity q is measured and from the relationship U002-U001=C1xq/Q0 the acid capacity Q0 of the battery is found. The relative state of charge SOC1 is determined from a curve of the rest voltage U00 linearized by the formula SOC1=U002/C1-C2 as a function of the state of charge of the battery from which the absolute state of charge is calculated as SOC1xQ0. From the internal resistance R1, a preassigned temperature and the last determined state of charge, a rest voltage is predicted for a later time from which, with the current necessary for starting the engine known, a pronouncement can be derived concerning the starting capacity of the battery.</description><edition>7</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; SYSTEMS FOR STORING ELECTRIC ENERGY ; TESTING</subject><creationdate>2000</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=20001219&DB=EPODOC&CC=US&NR=6163133A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20001219&DB=EPODOC&CC=US&NR=6163133A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UBERMEIER; DIETER</creatorcontrib><creatorcontrib>MICHELS; KARSTEN</creatorcontrib><creatorcontrib>MEISSNER; EBERHARD</creatorcontrib><creatorcontrib>LAIG-HORSTEBROCK; HELMUT</creatorcontrib><creatorcontrib>DIERKER; UWE</creatorcontrib><title>Process for determining the state of charge and the peak current loadability of batteries</title><description>In a process for determining the state of charge and the peak current loadability of batteries in the currentless pauses before and after a loading phase the no-load voltages U01 and U02 are measured. 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| subjects | BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING |
| title | Process for determining the state of charge and the peak current loadability of batteries |
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