Method, system, and computer-readable medium for determining performance characteristics of an object undergoing one or more arbitrary aging conditions
First Claim
1. A method for characterizing performance loss of a battery or battery cell undergoing at least one arbitrary aging condition, the method comprising:
- loading, with a processor, known baseline aging data for a battery or battery cell having an aging profile for at least one known baseline aging condition over time;
determining, with the processor, baseline rate expression model parameters from the baseline aging data for the battery or battery cell;
receiving, at the processor, additional aging data associated with the battery or battery cell undergoing different arbitrary aging conditions over successive time periods, each of the different arbitrary aging conditions having an unknown consequence that differs from the at least one known baseline aging condition used for the known baseline aging data;
determining, with the processor, rate expression model parameters for each of the different arbitrary aging conditions and related time interval within the additional aging data;
determining, with the processor, previously unknown performance loss due to aging of the battery or battery cell over time utilizing the rate expression model parameters associated with the battery or battery cell undergoing the different arbitrary aging conditions using a differential deviation-from-baseline approach from the baseline rate expression model parameters;
predicting an aging progression based on the determined previously unknown performance loss; and
controlling operation of the battery or battery cell dynamically in real time responsive to the predicted aging progression.
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Abstract
A method, system, and computer-readable medium are described for characterizing performance loss of an object undergoing an arbitrary aging condition. Baseline aging data may be collected from the object for at least one known baseline aging condition over time, determining baseline multiple sigmoid model parameters from the baseline data, and performance loss of the object may be determined over time through multiple sigmoid model parameters associated with the object undergoing the arbitrary aging condition using a differential deviation-from-baseline approach from the baseline multiple sigmoid model parameters. The system may include an object, monitoring hardware configured to sample performance characteristics of the object, and a processor coupled to the monitoring hardware. The processor is configured to determine performance loss for the arbitrary aging condition from a comparison of the performance characteristics of the object deviating from baseline performance characteristics associated with a baseline aging condition.
43 Citations
29 Claims
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1. A method for characterizing performance loss of a battery or battery cell undergoing at least one arbitrary aging condition, the method comprising:
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loading, with a processor, known baseline aging data for a battery or battery cell having an aging profile for at least one known baseline aging condition over time; determining, with the processor, baseline rate expression model parameters from the baseline aging data for the battery or battery cell; receiving, at the processor, additional aging data associated with the battery or battery cell undergoing different arbitrary aging conditions over successive time periods, each of the different arbitrary aging conditions having an unknown consequence that differs from the at least one known baseline aging condition used for the known baseline aging data; determining, with the processor, rate expression model parameters for each of the different arbitrary aging conditions and related time interval within the additional aging data; determining, with the processor, previously unknown performance loss due to aging of the battery or battery cell over time utilizing the rate expression model parameters associated with the battery or battery cell undergoing the different arbitrary aging conditions using a differential deviation-from-baseline approach from the baseline rate expression model parameters; predicting an aging progression based on the determined previously unknown performance loss; and controlling operation of the battery or battery cell dynamically in real time responsive to the predicted aging progression. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for determining performance characteristics of a battery or battery cell, the system comprising:
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a battery or battery cell having an aging profile; monitoring hardware configured to sample aging-dependent performance characteristics of the battery or battery cell; and a processor coupled to the monitoring hardware, and configured to; determine unknown performance loss for different arbitrary aging conditions over different successive time intervals, the different arbitrary aging conditions having unknown consequences, from a comparison of the performance characteristics of the battery or battery cell deviating from baseline performance characteristics associated with a baseline aging condition, wherein the different arbitrary aging conditions are different from the baseline aging condition associated with the baseline performance characteristics; predict an aging progression based on the determined previously unknown performance loss; and control operation of the battery or battery cell dynamically in real time responsive to the predicted aging progression. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A non-transitory computer-readable medium including computer-executable instructions, which when executed on one or more processors, perform a method, the method comprising:
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generating aging characteristics for a battery or battery cell imposed upon by different arbitrary aging conditions having unknown consequences over a plurality of different successive time intervals; predicting future unknown performance loss of the battery or battery cell based upon deviations of the aging characteristics of the battery or battery cell imposed upon by the arbitrary aging condition and baseline aging characteristics associated with a baseline aging condition, wherein the arbitrary aging condition is different from the baseline aging condition associated with the baseline aging characteristics; predicting an aging progression based on the determined previously unknown performance loss; and control operation of the battery or battery cell dynamically in real time responsive to the predicted aging progression. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification