Use-adaptive fuel gauging for battery powered electronic devices
First Claim
1. A method of fuel gauging in an electronic device having a battery, the method comprising:
- adapting the fuel gauging in the device to a use model, wherein the use model comprises how the device is actually used by a user.
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Accused Products
Abstract
A method and a battery powered electronic device incorporate use-adaptive fuel gauging. The use-adaptive fuel gauging adapts a fuel gauge algorithm to an average use model for the device. The adaptation accounts for the effects that variations in average use by a user of the device have on a total available energy or charge capacity of a battery. Accordingly, use-adaptivity can improve the fuel gauging accuracy by improving an estimate of the total energy available. The method and device optionally account for different battery chemistries yielding further increases in fuel gauging accuracy compared to conventional fuel gauging approaches.
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Citations
26 Claims
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1. A method of fuel gauging in an electronic device having a battery, the method comprising:
adapting the fuel gauging in the device to a use model, wherein the use model comprises how the device is actually used by a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An electronic device with use-adaptive fuel gauging, the electronic device using a battery for power, the electronic device comprising:
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a battery monitor that measures a characteristic of the battery;
a controller that receives the measured battery characteristic from the battery monitor;
a memory that provides temporary data storage for the controller;
a user interface that displays results produced by the controller; and
a fuel gauge algorithm stored in the memory as a computer program, wherein the computer program comprises instructions that, when executed by the controller, check the charge level of a newly installed battery, monitor a net energy extracted from the battery, update an estimated total available energy, and adapt the fuel gauging to the estimated total available energy. - View Dependent Claims (22, 23, 24, 25)
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26. An electronic device with use-adaptive fuel gauging, the electronic device using a battery for power, the electronic device comprising:
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a battery monitor that measures a characteristic of the battery;
a controller that receives the measured battery characteristic from the battery monitor;
a memory that provides temporary data storage for the controller;
a user interface that displays results produced by the controller; and
a fuel gauge algorithm stored in the memory as a computer program, wherein the computer program comprises instructions that, when executed by the controller, adapt the fuel gauging in the device to a use model, wherein the use model comprises how the device is actually used by a user.
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Specification