Patent ID: 11885852
Assignee: GS YUASA INTERNATIONAL LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  B  H  Y | IPC G  H

Claim 4:
5. An energy storage apparatus comprising: an energy storage device; a shunt resistor connected to the energy storage device; and a battery management device that manages the energy storage device,
wherein the battery management device includes:
a current measurement unit that measures a current flowing through the shunt resistor using a pair of signal wires connected to both ends of the shunt resistor;
a connecting wire that connects the signal wire to a reference potential source via an opening/closing switch; and
a determination unit that determines presence or absence of a failure in which connection between the pair of signal wires via the shunt resistor becomes defective based on a change in current measured by the current measurement unit when the opening/closing switch is opened and closed.