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公开(公告)号：US11360531B1
公开(公告)日：2022-06-14
申请号：US16442351
申请日：2019-06-14
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang
Abstract: Methods for redeploying used battery units can include capturing performance data of an energy storage unit containing a battery unit at the end of its useful life for a primary application, and determining, based on the performance data, a remaining energy output capacity. If the battery unit meets or exceeds threshold performance criteria, the battery unit can be incorporated into a second energy storage unit and reconfigured to reflect the remaining energy output capacity. The second storage unit can include the redeployed battery unit alone, or in combination with any suitable number of additional battery units.
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公开(公告)号：US10770911B1
公开(公告)日：2020-09-08
申请号：US15810582
申请日：2017-11-13
Applicant: Amazon Technologies, Inc.
Inventor： Darin Lee Frink , Ligong Wang
IPC: H02J7/00 , G01R35/00 , G01R31/387
Abstract: Calibrating a battery capacity gage employs a controlled discharge of a backup battery unit. A method of updating a capacity gage includes charging a backup battery unit to a predetermined high charge level. A first amount of energy is discharged from the backup battery unit at a first controlled discharge rate so as to discharge the backup battery unit from the predetermined high charge level to a first low charge level. The backup battery unit is charged back to the predetermined high charge level. A power system controller estimates, based on the first amount of energy and the first controlled discharge rate, a second amount of energy that can be discharged from the backup battery unit at a second controlled discharge rate greater than the first controlled discharge rate. The capacity gage is updated based on the second amount of energy estimated by the power system controller.
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公开(公告)号：US10587140B1
公开(公告)日：2020-03-10
申请号：US15838909
申请日：2017-12-12
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang , Michael Jon Moen
Abstract: A power supply system can include a plurality of battery backup units and a control unit. The battery backup units may be utilized to supply backup energy to a power supply unit, for example, in case of a power outage event. The control unit can gauge a respective capacity, temperature, age, and/or other characteristic of each respective battery backup unit of the plurality of battery backup units. The control unit can designate a particular battery backup unit of the plurality of battery backup units as a spared unit, e.g., to be spared in the power outage event. The designation may be based at least in part on the respective capacity or other characteristic of each respective battery backup unit gauged.
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公开(公告)号：US11360153B1
公开(公告)日：2022-06-14
申请号：US16219298
申请日：2018-12-13
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang
IPC: G01R31/392 , G01R31/36 , G01R31/382 , G01R31/396
Abstract: Methods and systems for rerating a battery pack based on fuel gauge data are described, including capturing operational or fuel gauge data for a first battery pack that contains a plurality of battery cells, and determining, based on the fuel gauge data, a remaining capacity of the first battery pack. When the remaining capacity of the first battery pack falls below the minimum capacity; a new battery pack can be configured using some or all of the battery cells, and a second fuel gauge can be configured with new initial capacity and minimum capacity ratings.
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公开(公告)号：US10983785B1
公开(公告)日：2021-04-20
申请号：US16022298
申请日：2018-06-28
Applicant: Amazon Technologies, Inc.
Inventor： David Edward Bryan , Ligong Wang
Abstract: Information about firmware modules for a power unit (e.g., a battery backup unit or a power supply unit) can be downloaded, along with the firmware modules themselves. The firmware modules, which may constitute less than a complete firmware re-flash, can be used to update firmware of the power unit from a first version type to a second version type.
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Patent Agency Ranking
公开(公告)号：US10725514B1
公开(公告)日：2020-07-28
申请号：US15831118
申请日：2017-12-04
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang , Darin Lee Frink
IPC: G06F1/26 , G06F1/32 , G06F1/3287
Abstract: Systems for controlling cycling operations for backup battery units in a datacenter include groups of backup battery units and power supply units that can supply power to datacenter components from either a primary power supply or, the backup battery units. Each group of multiple battery units has sufficient capacity to provide backup power to a respective electronic device even when one battery unit is offline. In operation, a controller receives requests to perform cycling operations, e.g. maintenance, on the backup batteries. Upon each request, the system retrieves status information corresponding to each backup battery unit and determines whether the remainder of the backup battery units can supply sufficient power to meet or exceed power demand, and either allow or prevent each backup battery unit from performing the cycling operation in response to determining whether the remainder of the backup battery units can or cannot supply sufficient power.
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公开(公告)号：US11296527B1
公开(公告)日：2022-04-05
申请号：US16787838
申请日：2020-02-11
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang , Michael Jon Moen
Abstract: A power supply system can include a plurality of battery backup units and a control unit. The battery backup units may be utilized to supply backup energy to a power supply unit, for example, in case of a power outage event. The control unit can gauge a respective capacity, temperature, age, and/or other characteristic of each respective battery backup unit of the plurality of battery backup units. The control unit can designate a particular battery backup unit of the plurality of battery backup units as a spared unit, e.g., to be spared in the power outage event. The designation may be based at least in part on the respective capacity or other characteristic of each respective battery backup unit gauged.
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公开(公告)号：US10965148B1
公开(公告)日：2021-03-30
申请号：US16054804
申请日：2018-08-03
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang , David Bryan
Abstract: A method for managing backup power in the event of a power supply deficit or disruption includes detecting the power supply deficit and recruiting some or all of the backup battery units associated with electronic devices in the system to provide a backup power supply. Depending on the severity of the power supply failure, the selected backup battery units can be reconfigured from providing power to local electronic devices to providing power along a backup power supply pathway to other electronic components in the system.
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公开(公告)号：US10677852B1
公开(公告)日：2020-06-09
申请号：US15806204
申请日：2017-11-07
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang , Darin Lee Frink
IPC: G01N27/416 , G01R31/40 , G01R31/388 , G01R31/36
Abstract: Methods and related systems conduct a capacity check of a battery via a partial discharge cycle. A method of estimating a total capacity of a battery includes partially discharging the battery at a controlled discharge rate so as to discharge an amount of energy from the battery over a period of time. An output voltage of the battery is measured during the period of time. A total capacity of the battery is estimated based on the amount of energy discharged from the battery during the partial discharge cycle and the output voltage of the battery measured during the partial discharge cycle.
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公开(公告)号：US11868191B1
公开(公告)日：2024-01-09
申请号：US16780490
申请日：2020-02-03
Applicant: Amazon Technologies, Inc.
Inventor： Ligong Wang , Darin Lee Frink
IPC: G06F1/30 , H02J9/06 , G06Q50/06 , H02J7/00 , G06Q30/0201
CPC classification number: G06F1/305 , G06Q30/0206 , G06Q50/06 , H02J7/007 , H02J7/0063 , H02J9/06
Abstract: Methods for providing power to electronic components (e.g., servers in a datacenter, or other devices) can include providing AC power received from an external source to the devices. During periods of high demand, when costs of external AC power exceed a threshold, or when availability of external AC power is decreased, distributed backup power supply systems can be utilized to temporarily offset or to reverse consumption of external AC power. Such distributed backup power systems can be periodically recharged during periods of low power demand, and thus consistently retain adequate charge for backup use in the event of power loss.
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