BATTERY MANAGEMENT SYSTEM FOR AN ELECTRIC VEHICLE WITH LEAKAGE RESISTANCE DETECTION
The present invention relates to a battery management system for an electric vehicle. The battery management system comprises a first terminal (105) for electrically connecting one terminal (505) of a battery (500) of the electric vehicle,a second terminal (110) for electrically connecting an electr...
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| creator | Filgis, Simon Goede, Stefan Reichmeyer, Konstantin |
| description | The present invention relates to a battery management system for an electric vehicle. The battery management system comprises a first terminal (105) for electrically connecting one terminal (505) of a battery (500) of the electric vehicle,a second terminal (110) for electrically connecting an electric load of the electric vehicle, and a third terminal (115) for electrically connecting a chassis (600) of the electric vehicle. Further the battery management system comprises a first determination circuit (130, 230) conductively coupled with a first node (120) between the first terminal (105) and the second terminal (110) and conductively coupled with a second node (125) to the third terminal (115), the first determination circuit (130, 230) comprising: a first voltage divider which comprises a first series circuit with at least a first resistor (135) and a second resistor (140), a first switch (145) which is conductively coupled to the first resistor (135), so that, when the first switch is ON, the first resistor (135) is short-circuited and that, when the first switch (145) is OFF, the first resistor (135) is not short-circuited, and a first measurement circuit (150) configured to measure a first voltage across the second resistor (140), when the first switch (145) is OFF, and to measure a second voltage across the second resistor (140), when the first switch (145) is ON. Further the battery management system comprises a processing circuit configured to determine a leakage path resistance between an other terminal (510) of the battery (500) and the chassis (600) of the electric vehicle based on the first voltage and the second voltage. |
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The battery management system comprises a first terminal (105) for electrically connecting one terminal (505) of a battery (500) of the electric vehicle,a second terminal (110) for electrically connecting an electric load of the electric vehicle, and a third terminal (115) for electrically connecting a chassis (600) of the electric vehicle. Further the battery management system comprises a first determination circuit (130, 230) conductively coupled with a first node (120) between the first terminal (105) and the second terminal (110) and conductively coupled with a second node (125) to the third terminal (115), the first determination circuit (130, 230) comprising: a first voltage divider which comprises a first series circuit with at least a first resistor (135) and a second resistor (140), a first switch (145) which is conductively coupled to the first resistor (135), so that, when the first switch is ON, the first resistor (135) is short-circuited and that, when the first switch (145) is OFF, the first resistor (135) is not short-circuited, and a first measurement circuit (150) configured to measure a first voltage across the second resistor (140), when the first switch (145) is OFF, and to measure a second voltage across the second resistor (140), when the first switch (145) is ON. Further the battery management system comprises a processing circuit configured to determine a leakage path resistance between an other terminal (510) of the battery (500) and the chassis (600) of the electric vehicle based on the first voltage and the second voltage.</description><language>eng ; fre ; ger</language><subject>ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL ; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PERFORMING OPERATIONS ; PHYSICS ; TESTING ; TRANSPORTING ; VEHICLES IN GENERAL</subject><creationdate>2021</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=20210331&DB=EPODOC&CC=EP&NR=3660520B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210331&DB=EPODOC&CC=EP&NR=3660520B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Filgis, Simon</creatorcontrib><creatorcontrib>Goede, Stefan</creatorcontrib><creatorcontrib>Reichmeyer, Konstantin</creatorcontrib><title>BATTERY MANAGEMENT SYSTEM FOR AN ELECTRIC VEHICLE WITH LEAKAGE RESISTANCE DETECTION</title><description>The present invention relates to a battery management system for an electric vehicle. The battery management system comprises a first terminal (105) for electrically connecting one terminal (505) of a battery (500) of the electric vehicle,a second terminal (110) for electrically connecting an electric load of the electric vehicle, and a third terminal (115) for electrically connecting a chassis (600) of the electric vehicle. Further the battery management system comprises a first determination circuit (130, 230) conductively coupled with a first node (120) between the first terminal (105) and the second terminal (110) and conductively coupled with a second node (125) to the third terminal (115), the first determination circuit (130, 230) comprising: a first voltage divider which comprises a first series circuit with at least a first resistor (135) and a second resistor (140), a first switch (145) which is conductively coupled to the first resistor (135), so that, when the first switch is ON, the first resistor (135) is short-circuited and that, when the first switch (145) is OFF, the first resistor (135) is not short-circuited, and a first measurement circuit (150) configured to measure a first voltage across the second resistor (140), when the first switch (145) is OFF, and to measure a second voltage across the second resistor (140), when the first switch (145) is ON. 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The battery management system comprises a first terminal (105) for electrically connecting one terminal (505) of a battery (500) of the electric vehicle,a second terminal (110) for electrically connecting an electric load of the electric vehicle, and a third terminal (115) for electrically connecting a chassis (600) of the electric vehicle. Further the battery management system comprises a first determination circuit (130, 230) conductively coupled with a first node (120) between the first terminal (105) and the second terminal (110) and conductively coupled with a second node (125) to the third terminal (115), the first determination circuit (130, 230) comprising: a first voltage divider which comprises a first series circuit with at least a first resistor (135) and a second resistor (140), a first switch (145) which is conductively coupled to the first resistor (135), so that, when the first switch is ON, the first resistor (135) is short-circuited and that, when the first switch (145) is OFF, the first resistor (135) is not short-circuited, and a first measurement circuit (150) configured to measure a first voltage across the second resistor (140), when the first switch (145) is OFF, and to measure a second voltage across the second resistor (140), when the first switch (145) is ON. Further the battery management system comprises a processing circuit configured to determine a leakage path resistance between an other terminal (510) of the battery (500) and the chassis (600) of the electric vehicle based on the first voltage and the second voltage.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING VEHICLES IN GENERAL |
| title | BATTERY MANAGEMENT SYSTEM FOR AN ELECTRIC VEHICLE WITH LEAKAGE RESISTANCE DETECTION |
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