VEHICULAR POWER SUPPLY DEVICE AND POWER SUPPLY CONTROL METHOD
PROBLEM TO BE SOLVED: To provide a vehicular power supply device and power supply control method, capable of preventing generation of insufficient charging of a low-voltage battery connected to a subsequent stage of a DC-DC converter.SOLUTION: The vehicular power supply device includes: a first batt...
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| creator | OTOSHI KOTA TAKEUCHI JUNICHI |
| description | PROBLEM TO BE SOLVED: To provide a vehicular power supply device and power supply control method, capable of preventing generation of insufficient charging of a low-voltage battery connected to a subsequent stage of a DC-DC converter.SOLUTION: The vehicular power supply device includes: a first battery 1 that supplies a high voltage to a high-voltage system through switches RL1 to RL3 for power feeding; a DC-DC converter 2 that is directly connected to the first battery 1 and supplied with electric power from the first battery 1; a second battery 3 that is supplied with electric power from the DC-DC converter 2 and supplies a low voltage to a low-voltage system through an ignition switch IG-SW; and a controller 4 that is directly connected to the second battery 3 and controls start and stop of the DC-DC converter 2 when it is detected that the ignition switch IG-SW is in such a state as to be not powered to a low-voltage system and charges the second battery 3 in such a state as to switch the switches RL1 to RL3 for power feeding. |
| format | Patent |
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a DC-DC converter 2 that is directly connected to the first battery 1 and supplied with electric power from the first battery 1; a second battery 3 that is supplied with electric power from the DC-DC converter 2 and supplies a low voltage to a low-voltage system through an ignition switch IG-SW; and a controller 4 that is directly connected to the second battery 3 and controls start and stop of the DC-DC converter 2 when it is detected that the ignition switch IG-SW is in such a state as to be not powered to a low-voltage system and charges the second battery 3 in such a state as to switch the switches RL1 to RL3 for power feeding.</description><language>eng</language><subject>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 ; 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a DC-DC converter 2 that is directly connected to the first battery 1 and supplied with electric power from the first battery 1; a second battery 3 that is supplied with electric power from the DC-DC converter 2 and supplies a low voltage to a low-voltage system through an ignition switch IG-SW; and a controller 4 that is directly connected to the second battery 3 and controls start and stop of the DC-DC converter 2 when it is detected that the ignition switch IG-SW is in such a state as to be not powered to a low-voltage system and charges the second battery 3 in such a state as to switch the switches RL1 to RL3 for power feeding.</description><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>PERFORMING OPERATIONS</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><subject>TRANSPORTING</subject><subject>VEHICLES IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLANc_XwdA71cQxSCPAPdw1SCA4NCPCJVHBxDfN0dlVw9HNBFXf29wsJ8vdR8HUN8fB34WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGRgbGluYmJo7GRCkCAKYUKpQ</recordid><startdate>20120223</startdate><enddate>20120223</enddate><creator>OTOSHI KOTA</creator><creator>TAKEUCHI JUNICHI</creator><scope>EVB</scope></search><sort><creationdate>20120223</creationdate><title>VEHICULAR POWER SUPPLY DEVICE AND POWER SUPPLY CONTROL METHOD</title><author>OTOSHI KOTA ; TAKEUCHI JUNICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2012039744A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2012</creationdate><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>PERFORMING OPERATIONS</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><topic>TRANSPORTING</topic><topic>VEHICLES IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>OTOSHI KOTA</creatorcontrib><creatorcontrib>TAKEUCHI JUNICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OTOSHI KOTA</au><au>TAKEUCHI JUNICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VEHICULAR POWER SUPPLY DEVICE AND POWER SUPPLY CONTROL METHOD</title><date>2012-02-23</date><risdate>2012</risdate><abstract>PROBLEM TO BE SOLVED: To provide a vehicular power supply device and power supply control method, capable of preventing generation of insufficient charging of a low-voltage battery connected to a subsequent stage of a DC-DC converter.SOLUTION: The vehicular power supply device includes: a first battery 1 that supplies a high voltage to a high-voltage system through switches RL1 to RL3 for power feeding; a DC-DC converter 2 that is directly connected to the first battery 1 and supplied with electric power from the first battery 1; a second battery 3 that is supplied with electric power from the DC-DC converter 2 and supplies a low voltage to a low-voltage system through an ignition switch IG-SW; and a controller 4 that is directly connected to the second battery 3 and controls start and stop of the DC-DC converter 2 when it is detected that the ignition switch IG-SW is in such a state as to be not powered to a low-voltage system and charges the second battery 3 in such a state as to switch the switches RL1 to RL3 for power feeding.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_JP2012039744A |
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| subjects | 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 PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL |
| title | VEHICULAR POWER SUPPLY DEVICE AND POWER SUPPLY CONTROL METHOD |
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