To supply electric power to a power path while suppressing current in a state in which power supply from a battery to the power path is cut off.SOLUTION: A vehicular power supply system 3 comprises a plurality of batteries 82A and 82B, power paths 94A and 94B, a switching unit 84 and relay units 91 and 92. The switching unit 84 switches the plurality of batteries 82A and 82B between series connection and parallel connection. The relay units 91 and 92 are switched between an ON state where power supply from the plurality of batteries 82A and 82B to the power paths 94A and 94B is allowed and an OFF state where the power supply is not allowed. A vehicular power supply device 10 is used for the vehicular power supply system 3. The vehicular power supply device 10 comprises a converter 40 and a control unit 18. In a case where a predetermined condition is satisfied while the relay units 91 and 92 are in the OFF state, the control unit 18 causes the converter 40 to perform an operation for supplying electric power to the power paths 94A and 94B.SELECTED DRAWING: Figure 1
【課題】バッテリから電力路への電力供給が遮断された状態で、電流を抑えて電力路へ電力を供給することを可能にする。【解決手段】車両用電源システム3は、複数のバッテリ82A,82Bと、電力路94A,94Bと、切替部84と、リレー部91,92とを有する。切替部84は、複数のバッテリ82A,82Bを直列接続と並列接続とに切り替える。リレー部91,92は、複数のバッテリ82A,82Bから電力路94A,94Bへの電力供給を許容するオン状態と許容しないオフ状態とに切り替わる。車両用電源装置10は、車両用電源システム3に用いられる。車両用電源装置10は、コンバータ40と、制御部18と、を有する。制御部18は、リレー部91,92がオフ状態のときに所定条件が成立した場合に、コンバータ40に対して電力路94A,94Bに電力を供給する動作を行わせる【選択図】図1
VEHICULAR POWER SUPPLY DEVICE
車両用電源装置
2022-06-13
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
VEHICULAR POWER SUPPLY CONTROL DEVICE AND VEHICULAR POWER SUPPLY DEVICE
European Patent Office | 2020
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