Management apparatus for energy storage device and energy storage apparatus
AssigneeGS Yuasa International Ltd.
InventorsYuki Matsuda, Masakatsu Fujimatsu, Akimasa Sugiura, Naoya Wada, Satoshi Kunita
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Abstract
A BMU (management apparatus) of a secondary battery (energy storage device) includes a management part that operates by power supplied from the secondary battery, and a capacitor (backup power source) that supplies power to the management part when a voltage of the secondary battery decreases.
Claims17
A management apparatus for an energy storage device used for activating a drive source, the management apparatus comprising:
- a management part that operates by power supplied from the energy storage device;
- a backup power source that supplies power to the management part when a voltage of the energy storage device decreases;
- a circuit breaker connected in series with the energy storage device;
- and
- a current sensor that detects a current value of a current flowing through the energy storage device,
- wherein the management part turns off the circuit breaker when a current value equal to or larger than a predetermined value is detected by the current sensor.
A management apparatus for an energy storage device used for activating a drive source, the management apparatus comprising:
- a management part that operates by power supplied from the energy storage device;
- a backup power source that supplies power to the management part when a voltage of the energy storage device decreases;
- and
- a regulator that lowers a voltage of the energy storage device to an operating voltage of the management part, the regulator provided between the energy storage device and the management part,
- wherein the backup power source is provided on a power line branching from a power line connecting the regulator and the management part.
An energy storage apparatus comprising:
- an energy storage device;
- and
- a management apparatus,
- wherein the management apparatus includes
- a management part that operates by power supplied from the energy storage device, and
- a backup power source that supplies power to the management part when a voltage of the energy storage device decreases,
- the energy storage apparatus is rated at 12 volts,
- the management apparatus includes
- a circuit breaker connected in series with the energy storage device, and
- a current sensor that detects a current value of a current flowing through the energy storage device, and
- the management part turns off the circuit breaker when a current value equal to or larger than a predetermined value is detected by the current sensor.
An energy storage apparatus comprising:
- an energy storage device;
- and
- a management apparatus,
- wherein the management apparatus includes
- a management part that operates by power supplied from the energy storage device, and
- a backup power source that supplies power to the management part when a voltage of the energy storage device decreases,
- the energy storage apparatus is rated at 12 volts,
- a regulator that lowers a voltage of the energy storage device to an operating voltage of the management part is provided between the energy storage device and the management part, and
- the backup power source is provided on a power line branching from a power line connecting the regulator and the management part.
Dependencies are inferred from the claim text.