Electric vehicle battery storage system

Patent metadata

Field	Value
Publication number	US-9843209-B2
Application number	US-201514831185-A
Country	US
Kind code	B2
Filing date	Aug 20, 2015
Priority date	Jul 29, 2011
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

According to one embodiment, a storage system includes storage devices configured to execute communication by using an identifier, a converter configured to convert the identifier of the storage devices, a controller configured to execute communication with the storage devices via the converter by using the identifier converted by the converter, convert a DC power output from the storage devices into a DC power of a predetermined magnitude and output the DC power, and charge the storage devices with the DC power of the predetermined magnitude, an AC/DC converter configured to convert the DC power output from the controller into an AC power, convert an AC power supplied from a distribution system into a DC power and supply the DC power to the controller, and a controller configured to control the controller and the AC/DC converter.

First claim

The invention claimed is:

1. A storage system comprising:
a plurality of storage devices configured to execute communication by using a Control Area Network (CAN) identifier;
a converter configured to convert the CAN identifier of each of the plurality of storage devices and create an IP address of each of the storage devices;
a charge/discharge controller configured to execute communication with the plurality of storage devices via the converter by using the identifier converted by the converter, convert a DC power output from the plurality of storage devices into a DC power of a predetermined magnitude and output the DC power, and charge the storage devices with the DC power of the predetermined magnitude;
an AC/DC converter configured to convert the DC power output from the charge/discharge controller into an AC power; convert an AC power supplied from a distribution system into a DC power and supply the DC power to the charge/discharge controller;
a controller configured to control the charge/discharge controller and the AC/DC converter;
an Ethernet communication line to which the converter and the controller are connected;
a second converter intervening between the charge/discharge controller and the Ethernet communication line, configured to convert the CAN identifier of the charge/discharge controller and create an IP address of the charge/discharge controller, and
a third converter intervening between the AC/DC converter and the Ethernet communication line, configured to convert the CAN identifier of the AC/DC converter and create the IP address of the AC/DC converter.

2. The storage system of claim 1 , wherein the converter comprises a rotary switch which sets a number to be used upon converting the identifier.

3. The storage system of claim 1 , further comprising connection units configured to make connection between the Ethernet communication line and an external device.

Assignees

• Toshiba Kk

Inventors

• Endo Tamotsu
• Fujiwara Jun

Classifications

• H02J2105/37

  exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] · CPC title

• H02J4/25

  for transfer of electric power between AC and DC networks, e.g. for supplying the DC section within a load from an AC mains system · CPC title

• H02J7/977

  of the battery · CPC title

• H02J7/865

  Battery or charger load switching, e.g. concurrent charging and load supply (H02J7/50 takes precedence) · CPC title

• H02J7/96

  in response to battery voltage · CPC title