US 12,179,631 B2Granted

Management device and power supply system

AssigneePanasonic Intellectual Property Management Co., Ltd.

InventorHiroshi Takao

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Abstract

Management device manages a plurality of power storage modules connected in parallel to load via switches. With some of switches connected to some of the plurality of power storage modules being in an on state and other switches connected to other power storage modules being in an off state, determination unit of management device does not permit at least one of other switches in the off state to be turned on in a case where at least one switch is turned on and an upper limit value of a current or power allowed to be supplied to load entirely from the plurality of power storage modules with at least one switch being turned on becomes less than or equal to a value before the turning-on of at least one switch.

Claims7

Dependent claims

A management device that manages a plurality of power storage modules each connected in parallel to a load via a switch, the management device comprising

a determination unit that
determines, in a state where, within the plurality of power storage modules, the switch connected to each of one or more power storage modules of the plurality of power storage modules is in an on state and the switch connected to each of one or more remaining power storage modules of the plurality of power storage modules is in an off state, whether an upper limit value of current or power allowed to be supplied to the load entirely from the plurality of power storage modules after the switch of one of the one or more remaining power storage modules is turned on, is less than or equal to a prior value of the current or the power before turning on the switch of the one of the one or more remaining power storage modules, and
upon determining that the upper limit value is less than or equal to the prior value, does not permit the switch of the one of the one or more remaining power storage modules in the off state to be turned on.

Dependencies are inferred from the claim text.

Facts

Application: 18/001,675Filed 16 Jun 2021
Priority: JP 2020-11061926 Jun 2020
Published: US 2023/0219460 A113 Jul 2023
Granted: 31 Dec 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

B60L 58/22
Of two or more battery modules: balancing the charge of battery modules
B60L 50/60
Using propulsion power supplied by batteries or fuel cells: using power supplied by batteries
B60L 58/13
Responding to state of charge [SoC]: maintaining the SoC within a determined range
H01M 10/425
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: structural combination with electronic…

Family

US 2023/0219460 A1Pre-grant publication · published 13 Jul 2023
US 12,179,631 B2This patent

From the US filing history. Foreign family members aren’t listed.

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