Power storage system

Patent metadata

Field	Value
Publication number	US-2023387698-A1
Application number	US-202318124238-A
Country	US
Kind code	A1
Filing date	Mar 21, 2023
Priority date	May 31, 2022
Publication date	Nov 30, 2023
Grant date	—

Abstract

A power storage system includes: a stationary power storage device configured to supply electric power to an electrical load; a control device configured to receive supply of electric power from each of the power storage device and another power source; a relay located between the power storage device and the control device and between the power storage device and the electrical load, but not between the control device and the power source; and an input device configured to accept input from a user. When a connection request is input to the input device while the relay is in a disconnected state, the control device brings the relay into a connected state.

First claim

What is claimed is:

1 . A power storage system comprising:
a stationary power storage device configured to supply electric power to an electrical load; a control device configured to receive supply of electric power from each of the power storage device and another power source; a relay located between the power storage device and the control device and between the power storage device and the electrical load, but not between the control device and the power source; and an input device configured to accept input from a user, wherein when a connection request is input to the input device while the relay is in a disconnected state, the control device is configured to bring the relay into a connected state.

2 . The power storage system according to claim 1 , wherein:
the power storage device includes an assembled battery including a plurality of cells electrically connected to each other; the control device is configured to execute equalization of cell voltages in the assembled battery when the relay is in the disconnected state; and the control device is configured to stop the equalization of the cell voltages and then bring the relay into the connected state when the connection request is input to the input device while executing the equalization of the cell voltages.

3 . The power storage system according to claim 1 , wherein:
the input device is configured to accept input of the connection request when a predetermined condition is satisfied, and is configured not to accept the input of the connection request when the predetermined condition is not satisfied; and the predetermined condition is satisfied when a prediction is made that predetermined electric power is not to be supplied from the power source to the control device.

4 . The power storage system according to claim 3 , wherein:
the input device is mounted on a mobile terminal that is able to be carried by the user; and the mobile terminal is configured to display a button for accepting the input of the connection request when the predetermined condition is satisfied.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kubo Kazuki
• Uehata Ryotaro
• Nagai Yuki
• Ohta Junji

Classifications

• H02J7/855 Primary

  with circuits adapted for supplying loads from the battery · CPC title

• H02J7/52 Primary

  for charge balancing, e.g. equalisation of charge between batteries · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title

• H02J13/12

  Monitoring network conditions, e.g. electrical magnitudes or operational status · CPC title

• H02J13/16

  the power network being controlled at grid-level, e.g. using aggregators · CPC title