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US 12,567,608 B2Granted
System, program, and management method
AssigneeSoftBank Corp.
InventorsTakaya Saito, Yoshiki Takayanagi, Shuntaro Miyakawa
Life of this patent
Estimating the term…
Abstract
Provided is a system comprising: a management unit that manages a plurality of battery packs, which are connected in parallel to a bus to which a power generation unit and a load are connected, to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with a highest voltage and a battery pack with a lowest voltage among the plurality of battery packs is not greater than a voltage threshold.
Claims17
A system comprising:
- a management unit that manages a plurality of battery packs, which are connected in parallel to a bus to which a power generation unit and a load are connected, to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with a highest voltage and a battery pack with a lowest voltage among the plurality of battery packs is not greater than a voltage threshold, wherein the management unit controls a discharge rate of each of the plurality of battery packs that is being discharged such that the discharge rate of each of the plurality of battery packs that is being discharged is in the range of from 0.3C to 2.0C, and wherein the management unit controls a charge rate of each of the plurality of battery packs that is being charged such that the charge rate of each of the plurality of battery packs that is being charged is in the range of 0.3C or less.
A system comprising:
- a management unit that manages a plurality of battery packs, which are connected in parallel to a bus to which a power generation unit and a load are connected, to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with a highest voltage and a battery pack with a lowest voltage among the plurality of battery packs is not greater than a voltage threshold;
- and
- a flight vehicle, wherein the management unit, the plurality of battery packs, the bus, and the load are mounted in the flight vehicle,
- wherein the power generation unit comprises one or more solar cells and the power generation unit performs a solar power generation,
- wherein the load is a motor that rotates a propeller of the flight vehicle, and
- wherein the management unit manages the plurality of battery packs to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with the voltage that is highest and a battery pack with the voltage that is lowest is not greater than a first voltage threshold during a time slot defined as daytime, and have the plurality of battery packs being alternately discharged so that the voltage difference between the battery pack with the voltage that is highest and the battery pack with the voltage that is lowest is not greater than a second voltage threshold that is greater than the first voltage threshold during a time slot defined as evening.
3 more elements
A non-transitory computer-readable storage medium having a program stored thereon, the program causes a computer to function as:
- a management unit that manages a plurality of battery packs, which are connected in parallel to a bus to which a power generation unit and a load are connected, to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with a highest voltage and a battery pack with a lowest voltage among the plurality of battery packs is not greater than a voltage threshold, wherein the management unit controls a discharge rate of each of the plurality of battery packs that is being discharged such that the discharge rate of each of the plurality of battery packs that is being discharged is in the range of from 0.3C to 2.0C, and wherein the management unit controls a charge rate of each of the plurality of battery packs that is being charged such that the charge rate of each of the plurality of battery packs that is being charged is in the range of 0.3C or less.
A management method of a plurality of battery packs performed by a computer, the plurality of battery packs being connected in parallel to a bus to which a power generation unit and a load are connected, the method comprises:
- managing the plurality of battery packs to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with a highest voltage and a battery pack with a lowest voltage among the plurality of battery packs is not greater than a voltage threshold;
- managing a discharge rate of each of the plurality of battery packs that is being discharged such that the discharge rate of each of the plurality of battery packs that is being discharged is in the range of from 0.3C to 2.0C;
- and
- managing a charge rate of each of the plurality of battery packs that is being charged such that the charge rate of each of the plurality of battery packs that is being charged is in the range of 0.3C or less.
1 more element
Dependencies are inferred from the claim text.