Operation method, operation device, and operation system of battery, and non-transitory storage medium

Patent metadata

Field	Value
Publication number	US-12580409-B2
Application number	US-202418581725-A
Country	US
Kind code	B2
Filing date	Feb 20, 2024
Priority date	Jul 18, 2023
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

In an operating method of a battery in an embodiment, one of a plurality of SOC ranges shifted from each other is selected as an operation SOC range, and the battery is operated in the SOC range selected as the operation SOC range. In the operation method, the SOC range selected as the operation SOC range is sequentially switched between the plurality of SOC ranges.

First claim

What is claimed is:

1 . An operation method of a battery, the method comprising:
selecting one of a plurality of SOC ranges shifted from each other as an operation SOC range, and operating the battery in an SOC range selected as the operation SOC range; sequentially switching an SOC range to be selected as the operation SOC range between the plurality of SOC ranges; and setting a vehicle SOC range and a non-vehicle SOC range as the plurality of SOC ranges shifted from each other in regard to a battery mounted on the vehicle, wherein electric power is supplied to a drive mechanism of the vehicle from the battery by operating the battery with the vehicle SOC range as the operation SOC range when a condition for permitting electric power supply from the battery to an outside of the vehicle is not satisfied, and wherein electric power is input from the outside of the vehicle to the battery and electric power is supplied from the battery to the outside of the vehicle by operating the battery with the non-vehicle SOC range as the operation SOC range when the condition for permitting the electric power supply from the battery to the outside of the vehicle is satisfied.

2 . The operation method according to claim 1 , further comprising setting the plurality of SOC ranges so as to be in a state in which between the plurality of SOC ranges, median SOC values are different, the upper limit SOC values are different, and lower limit SOC values are different.

3 . The operating method according to claim 2 , wherein the setting includes setting a first SOC range in setting of the plurality of SOC ranges, and setting at least one of a second SOC range in which the median SOC value is higher than the upper limit SOC value of the first SOC range and a third SOC range in which the median SOC value is lower than the lower limit SOC value of the first SOC range.

4 . The operation method according to claim 2 , wherein the setting includes making an SOC width from the upper limit SOC value to the lower limit SOC value same between the plurality of SOC ranges in setting the plurality of SOC ranges.

5 . The operation method according to claim 2 , wherein in setting of the plurality of SOC ranges, the lower a SOC range is among the plurality of SOC ranges, the larger an SOC width from the upper limit SOC value to the lower limit SOC value is made.

6 . The operation method according to claim 2 , wherein the setting includes at least one of setting the upper limit SOC value in a highest SOC range highest among the plurality of SOC ranges to any SOC value from 95% to 100% and setting the lower limit SOC value in a lowest SOC range lowest among the plurality of SOC ranges to any SOC value from 0% to 5% in setting of the plurality of SOC ranges.

7 . The operation method according to claim 1 , wherein the setting includes setting each of a median SOC value, an upper limit SOC value, and a lower limit SOC value higher in the vehicle SOC range than in the non-vehicle SOC range in setting the vehicle SOC range and the non-vehicle SOC range.

8 . The operation method according to claim 7 , wherein the setting includes setting the lower limit SOC value in the vehicle SOC range to the upper limit SOC value or more in the non-vehicle SOC range in setting the vehicle SOC range and the non-vehicle SOC range.

9 . An operation device of a battery, the operation device comprising a processor configured to perform the operation method according to claim 1 .

10 . An operation system of a battery, the operation system comprising:
the operation device according to claim 9 ; and the battery operated in an SOC range selected by the processor as the operation SOC range among the plurality of SOC ranges, the operation SOC range being sequentially switched between the plurality of SOC ranges.

11 . A non-transitory storage medium storing an operation program of a battery, the operation program causing a computer to execute the operation method according to claim 1 .

12 . An operation method of a battery, the method comprising:
selecting one of a plurality of SOC ranges shifted from each other as an operation SOC range, and operating the battery in an SOC range selected as the operation SOC range; sequentially switching an SOC range to be selected as the operation SOC range between the plurality of SOC ranges, wherein the switching includes switching an SOC range to be the operation SOC range in response to a prescribed period or more having elapsed from a time of starting an operation in an SOC range selected as the operation SOC range, or in response to an integrated value of an amount of electric power input to and output from the battery from a time of starting an operation in an SOC range selected as the operation SOC range being a prescribed amount of electric power or more, and the SOC range selected as the operation SOC range is different before and after the switching.

13 . The operation method according to claim 12 , further comprising setting the plurality of SOC ranges so as to be in a state in which between the plurality of SOC ranges, median SOC values are different, the upper limit SOC values are different, and lower limit SOC values are different.

14 . The operating method according to claim 13 , wherein the setting includes setting a first SOC range in setting of the plurality of SOC ranges, and setting at least one of a second SOC range in which the median SOC value is higher than the upper limit SOC value of the first SOC range and a third SOC range in which the median SOC value is lower than the lower limit SOC value of the first SOC range.

15 . The operation method according to claim 13 , wherein the setting includes making an SOC width from the upper limit SOC value to the lower limit SOC value same between the plurality of SOC ranges in setting the plurality of SOC ranges.

16 . The operation method according to claim 13 , wherein in setting of the plurality of SOC ranges, the lower a SOC range is among the plurality of SOC ranges, the larger an SOC width from the upper limit SOC value to the lower limit SOC value is made.

17 . The operation method according to claim 13 , wherein the setting includes at least one of setting the upper limit SOC value in a highest SOC range highest among the plurality of SOC ranges to any SOC value from 95% to 100% and setting the lower limit SOC value in a lowest SOC range lowest among the plurality of SOC ranges to any SOC value from 0% to 5% in setting of the plurality of SOC ranges.

18 . An operation device of a battery, the operation device comprising a processor configured to perform the operation method according to claim 12 .

19 . An operation system of a battery, the operation system comprising:
the operation device according to claim 18 ; and the battery operated in an SOC range selected by the processor as the operation SOC range among the plurality of SOC ranges, the operation SOC range being sequentially switched between the plurality of SOC ranges.

20 . A non-transitory storage medium storing an operation program of a battery, the operation program causing a computer to execute the operation method according to claim 12 .

Assignees

• Toshiba Kk

Inventors

• Fujita Yumi
• Morita Tomokazu
• Sugiyama Nobukatsu
• Miyazaki Shoko
• Zhang Wen

Classifications

• H02J7/855

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

• H02J7/82

  Control of state of charge [SOC] · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M10/44

  Methods for charging or discharging (circuits for charging H02J7/00) · CPC title

• B60L58/12

  responding to state of charge [SoC] · CPC title