PROBLEM TO BE SOLVED: To provide a vehicular power supply system which simplifies the configuration of a DC/DC converter and a high voltage load and standardizes components.SOLUTION: A vehicular power supply system 1 comprises: a battery B1 for travel, which supplies electric power for driving a motor generator MG working as a power source for vehicle travel; a normal battery B3 which is lower in output voltage than the battery B1 for travel; a high-voltage load D driven with a voltage from the normal battery B3; a DC/DC converter C2 which reduces the voltage from the normal battery B3 and supplies it to an auxiliary device side; and a step-down converter C3 to which the voltage from the battery B1 for travel and a voltage in regeneration from the motor generator MG side can be inputted and which reduces the inputted voltage and charges the normal battery B3.SELECTED DRAWING: Figure 1
【課題】DC/DCコンバータや高圧負荷の構成の簡素化を図り、且つ、部品の標準化についても図ることができる車両用電源システムを提供する。【解決手段】車両用電源システム1は、車両走行の動力源となるモータジェネレータMGを駆動する電力を供給する走行用バッテリB1と、走行用バッテリB1よりも出力電圧が低い標準バッテリB3と、標準バッテリB3からの電圧により駆動する高圧負荷Dと、標準バッテリB3からの電圧を降圧して補機側に供給するDC/DCコンバータC2と、走行用バッテリB1からの電圧及びモータジェネレータMG側からの回生時の電圧を入力可能であって、入力電圧を降圧して標準バッテリB3を充電する降圧コンバータC3とを備える。【選択図】図1
VEHICULAR POWER SUPPLY SYSTEM
車両用電源システム
2017-02-23
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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