STATE OF CHARGE CALCULATION DEVICE
PROBLEM TO BE SOLVED: To provide a state of charge calculation device capable of easily obtaining the state of charge of a secondary battery.SOLUTION: The state of charge calculation device comprises: a transformer determining current outputted from the other terminal of a second winding in accordan...
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| creator | KURAISHI MAMORU |
| description | PROBLEM TO BE SOLVED: To provide a state of charge calculation device capable of easily obtaining the state of charge of a secondary battery.SOLUTION: The state of charge calculation device comprises: a transformer determining current outputted from the other terminal of a second winding in accordance with a winding ratio of a first winding and the second winding and current flowing through a secondary battery; a first voltmeter measuring a voltage across the secondary battery; a second voltmeter measuring a voltage value across a resistor; a calculation unit. The calculation unit includes the steps of: obtaining a first voltage value across the secondary battery and a second voltage value across the resistor measured respectively by the first voltmeter and the second voltmeter, for each unit time of a period from the completion of charging using an external charging device to the start of charging using the next external charging device; obtaining a current value by dividing the first voltage value by a value obtained by multiplying a resistance value of the resistor prestored on a storage unit by a preset value determined by the winding ratio of the transformer; obtaining electric power by multiplying the second voltage value by the current value for each unit time; and obtaining the state of charge of the secondary battery by accumulating the electric power obtained for each period. |
| format | Patent |
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The calculation unit includes the steps of: obtaining a first voltage value across the secondary battery and a second voltage value across the resistor measured respectively by the first voltmeter and the second voltmeter, for each unit time of a period from the completion of charging using an external charging device to the start of charging using the next external charging device; obtaining a current value by dividing the first voltage value by a value obtained by multiplying a resistance value of the resistor prestored on a storage unit by a preset value determined by the winding ratio of the transformer; obtaining electric power by multiplying the second voltage value by the current value for each unit time; and obtaining the state of charge of the secondary battery by accumulating the electric power obtained for each period.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ; ELECTRICITY ; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL ; GENERATION ; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PERFORMING OPERATIONS ; PHYSICS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; SYSTEMS FOR STORING ELECTRIC ENERGY ; TESTING ; TRANSPORTING ; VEHICLES IN GENERAL</subject><creationdate>2013</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=20130822&DB=EPODOC&CC=JP&NR=2013164328A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130822&DB=EPODOC&CC=JP&NR=2013164328A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KURAISHI MAMORU</creatorcontrib><title>STATE OF CHARGE CALCULATION DEVICE</title><description>PROBLEM TO BE SOLVED: To provide a state of charge calculation device capable of easily obtaining the state of charge of a secondary battery.SOLUTION: The state of charge calculation device comprises: a transformer determining current outputted from the other terminal of a second winding in accordance with a winding ratio of a first winding and the second winding and current flowing through a secondary battery; a first voltmeter measuring a voltage across the secondary battery; a second voltmeter measuring a voltage value across a resistor; a calculation unit. The calculation unit includes the steps of: obtaining a first voltage value across the secondary battery and a second voltage value across the resistor measured respectively by the first voltmeter and the second voltmeter, for each unit time of a period from the completion of charging using an external charging device to the start of charging using the next external charging device; obtaining a current value by dividing the first voltage value by a value obtained by multiplying a resistance value of the resistor prestored on a storage unit by a preset value determined by the winding ratio of the transformer; obtaining electric power by multiplying the second voltage value by the current value for each unit time; and obtaining the state of charge of the secondary battery by accumulating the electric power obtained for each period.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES</subject><subject>ELECTRICITY</subject><subject>ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL</subject><subject>GENERATION</subject><subject>MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES</subject><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><subject>VEHICLES IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAKDnEMcVXwd1Nw9nAMcndVcHb0cQ71cQzx9PdTcHEN83R25WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGxoZmJsZGFo7GRCkCAFzrIpg</recordid><startdate>20130822</startdate><enddate>20130822</enddate><creator>KURAISHI MAMORU</creator><scope>EVB</scope></search><sort><creationdate>20130822</creationdate><title>STATE OF CHARGE CALCULATION DEVICE</title><author>KURAISHI MAMORU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2013164328A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2013</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES</topic><topic>ELECTRICITY</topic><topic>ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL</topic><topic>GENERATION</topic><topic>MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES</topic><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><topic>VEHICLES IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>KURAISHI MAMORU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KURAISHI MAMORU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STATE OF CHARGE CALCULATION DEVICE</title><date>2013-08-22</date><risdate>2013</risdate><abstract>PROBLEM TO BE SOLVED: To provide a state of charge calculation device capable of easily obtaining the state of charge of a secondary battery.SOLUTION: The state of charge calculation device comprises: a transformer determining current outputted from the other terminal of a second winding in accordance with a winding ratio of a first winding and the second winding and current flowing through a secondary battery; a first voltmeter measuring a voltage across the secondary battery; a second voltmeter measuring a voltage value across a resistor; a calculation unit. The calculation unit includes the steps of: obtaining a first voltage value across the secondary battery and a second voltage value across the resistor measured respectively by the first voltmeter and the second voltmeter, for each unit time of a period from the completion of charging using an external charging device to the start of charging using the next external charging device; obtaining a current value by dividing the first voltage value by a value obtained by multiplying a resistance value of the resistor prestored on a storage unit by a preset value determined by the winding ratio of the transformer; obtaining electric power by multiplying the second voltage value by the current value for each unit time; and obtaining the state of charge of the secondary battery by accumulating the electric power obtained for each period.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING TRANSPORTING VEHICLES IN GENERAL |
| title | STATE OF CHARGE CALCULATION DEVICE |
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