Modeling a change in battery degradation
First Claim
1. A method for controlling a battery, comprising:
- training parameters for a battery capacity prediction model based on usage pattern information that correlates usage of similar batteries with capacity information for the respective similar batteries, wherein the model characterizes a capacity decay rate in accordance with a present value of the battery capacity;
predicting future battery capacity for a battery under control based on the battery capacity prediction model and a present value of the battery capacity; and
controlling one or more operational parameters of the battery under control based on the predicted future battery capacity to extend the battery'"'"'s usable lifetime.
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Abstract
A battery controller and method for controlling a battery include training parameters for a battery capacity prediction model based on usage pattern information that correlates usage of similar batteries with capacity information for the respective similar batteries. The model characterizes a capacity decay rate in accordance with a present value of the battery capacity. Future battery capacity is predicted for a battery under control based on the battery capacity prediction model and a present value of the battery capacity. One or more operational parameters of the battery under control are controlled based on the predicted future battery capacity to extend the battery'"'"'s usable lifetime.
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Citations
13 Claims
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1. A method for controlling a battery, comprising:
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training parameters for a battery capacity prediction model based on usage pattern information that correlates usage of similar batteries with capacity information for the respective similar batteries, wherein the model characterizes a capacity decay rate in accordance with a present value of the battery capacity; predicting future battery capacity for a battery under control based on the battery capacity prediction model and a present value of the battery capacity; and controlling one or more operational parameters of the battery under control based on the predicted future battery capacity to extend the battery'"'"'s usable lifetime. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A non-transitory computer readable storage medium comprising a computer readable program for controlling a battery, wherein the computer readable program when executed on a computer causes the computer to perform the steps of:
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training parameters for a battery capacity prediction model based on usage pattern information that correlates usage of similar batteries with capacity information for the respective similar batteries, wherein the model characterizes a capacity decay rate in accordance with a present value of the battery capacity; predicting future battery capacity for a battery under control based on the battery capacity prediction model and a present value of the battery capacity; and controlling one or more operational parameters of the battery under control based on the predicted future battery capacity to extend the battery'"'"'s usable lifetime.
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8. A battery controller, comprising:
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a processor configured to train parameters for a battery capacity prediction model based on usage pattern information that correlates usage of similar batteries with capacity information for the respective similar batteries, wherein the model characterizes a capacity decay rate in accordance with a present value of the battery capacity, and further configured to predict future battery capacity for a battery under control based on the battery capacity prediction model and a present value of the battery capacity; and a battery interface configured to control one or more operational parameters of the battery under control based on the predicted future battery capacity to extend the battery'"'"'s usable lifetime. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification