PROBLEM TO BE SOLVED: To provide a power supply device for automobiles capable of suppressing the discharging of a capacitor on the basis of decrease of output power of an alternator.SOLUTION: In a power supply device for automobiles including a capacitor 14 for storing regenerative electric power outputted from an alternator 13, and a DC/DC converter 15 having a voltage conversion part 22 for converting output voltage of the alternator and supplying the converted output voltage to a main battery 16 and a load group 17, the DC/DC converter 15 includes a control part 21 for controlling the voltage conversion part such that the output power of the voltage conversion part 22 comes close to the output power of the alternator to suppress the discharging of the capacitor 14 in the case that the output power of the voltage conversion part 22 is larger than the output power of the alternator 13.SELECTED DRAWING: Figure 1
【課題】オルタネータの出力電力の低下に基づくキャパシタの放電を抑制し得る自動車用電源装置を提供する。【解決手段】オルタネータ13から出力される回生電力を蓄電するキャパシタ14と、オルタネータの出力電圧を変換してメインバッテリー16及び負荷群17に供給する電圧変換部22を有するDC/DCコンバータ15とを備えた自動車用電源装置において、DC/DCコンバータ15には、電圧変換部22の出力電力がオルタネータ13の出力電力より大きい場合に、該電圧変換部22の出力電力がオルタネータの出力電力に近づくように電圧変換部を制御してキャパシタ14の放電を抑制する制御部21を備えた。【選択図】図1
POWER SUPPLY DEVICE FOR AUTOMOBILE AND METHOD FOR CONTROLLING POWER SUPPLY DEVICE FOR AUTOMOBILE
自動車用電源装置及び自動車用電源装置の制御方法
2016-08-04
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
AUTOMOBILE POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING AUTOMOBILE POWER SUPPLY DEVICE
European Patent Office | 2016
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