Patent ID: 8598734
Filing Date: 2013-12-03
Classification: B60L,H02M,Y02T

Abstract:
1. A power supply system having a plurality of power storage devices each configured to be chargeable and dischargeable, comprising: a pair of electric power lines electrically connected to a load device; a plurality of voltage conversion units provided respectively between said plurality of power storage devices and said pair of electric power lines, and each configured to perform a voltage converting operation between said pair of electric power lines and associated one of said power storage devices; a plurality of voltage detection units associated respectively with said plurality of power storage devices for detecting respective output voltages of said associated power storage devices, respectively; and a control device controlling said plurality of voltage conversion units in accordance with required electric power which is required by said load device, wherein said plurality of power storage devices include first and second power storage devices that are configured so that one of the first and second power storage devices has a power supply voltage higher by a first predetermined value than the other power storage device, and said first predetermined value is determined in accordance with errors which may be included in detected values of said plurality of voltage detection units.