PROBLEM TO BE SOLVED: To provide a vehicle power supply, capable of performing both rapid charge/discharge operation based on power from a first power supply unit, and charge/discharge operation which can maintain a discharge state if power supply from the first power supply unit is cut off during charging, before and after the cutoff.SOLUTION: A vehicle power supply 1 includes: a first voltage converter unit 40 which at least converts a voltage applied to a first conducting path 21 to perform charge operation to apply the output voltage to a conducting path 24 on the second power supply unit side; and a second voltage converter unit 50 which at least converts a voltage applied to a third conducting path 23 to perform charge operation to apply the output voltage to the conducting path 24 on the second power supply unit side, and also performs conversion applied to the conducting path 24 on the second power supply unit side to perform discharge operation to apply the output voltage to the second conducting path 22. A control unit 60 performs both rapid charge control of causing the first voltage converter unit 40 to perform the charge operation and causing the second voltage converter unit 50 to perform the charge operation, and charge/discharge control of causing the first voltage converter unit 40 to perform the charge operation, and causing the second voltage converter unit 50 to perform the discharge operation.SELECTED DRAWING: Figure 1
【課題】第1電源部からの電力に基づく急速充電動作と、充電中に第1電源部の電力供給が遮断されても遮断前後で放電状態を維持し得る充放電動作とを行い得る車両用電源装置を提供する。【解決手段】車両用電源装置1は、第1導電路21に印加された電圧を変換し第2電源部側の導電路24に出力電圧を印加する充電動作を少なくとも行う第1電圧変換部40と、第3導電路23に印加された電圧を変換し第2電源部側の導電路24に出力電圧を印加する充電動作と、第2電源部側の導電路24に印加された変換して第2導電路22に出力電圧を印加する放電動作とを少なくとも行う第2電圧変換部50とを有する。制御部60は、第1電圧変換部40に充電動作を行わせ第2電圧変換部50に充電動作を行わせる急速充電制御と、第1電圧変換部40に充電動作を行わせ第2電圧変換部50に放電動作を行わせる充放電制御とを行う。【選択図】図1
VEHICLE POWER SUPPLY
車両用電源装置
2018-04-05
Patent
Elektronische Ressource
Japanisch
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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / 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 |
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