Power supply system for electric powered vehicle and method for controlling the same

摘要

First and second system main relays are connected between a first power storage device and a second power storage device, respectively, and a first power line. First and second relays for charging are connected between first and second power storage devices, respectively, and a second power line. A control device selectively forms any of a first power feed path formed by connecting each of the first and second power storage devices to the first power line, and a second power feed path formed by connecting, to the first power line, one of the first and second power storage devices connected in parallel when the first and second relays are turned ON, thereby ensuring a power feed path to the load.

主权项

1. A power supply system for an electric powered vehicle on which an electric motor for driving the vehicle is mounted, comprising:
a power control unit connected between a first power line and said electric motor, and configured to control driving of said electric motor; a first power storage device and a second power storage device connected in parallel to said first power line; a first switch connected between said first power storage device and said first power line; a second switch connected between said second power storage device and said first power line; a third switch disposed between a second power line supplied with charging electric power for charging said first and second power storage devices, and said first power storage device and said second power storage device; and a control unit for controlling ON and OFF states of said first to third switches, so as to selectively form any of a first power feed path formed by connecting each of said first and second power storage devices to said first power line, and a second power feed path formed by connecting, to said first power line, one of said first and second power storage devices connected in parallel when said third switch is turned ON.