Systems and methods for predicting battery power-delivery performance
First Claim
1. A method for predicting power-delivery performance for a battery, comprising:
- retrieving a plurality of battery operating parameters for a selected discharge cycle;
receiving a user-defined power level;
calculating an offset indicative of a difference between a modeled internal resistance of the battery and an observed internal resistance generated from a calibration discharge cycle of the battery prior to the selected discharge cycle;
outputting a battery power-delivery performance prediction based on an offset-corrected internal resistance indicative of a difference between a modeled internal resistance based on the plurality of battery operating parameters and the offset; and
outputting a battery power-delivery performance prediction based on the offset-corrected internal resistance and the user-defined power level.
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Abstract
Battery management systems and methods related to predicting power-delivery performance are provided. In one embodiment, a method for predicting power-delivery performance for a battery includes retrieving a plurality of battery operating parameters for a selected discharge cycle, calculating an offset indicative of a difference between a modeled internal resistance of the battery and an observed internal resistance generated from a calibration discharge cycle of the battery prior to the selected discharge cycle, and outputting a battery power-delivery performance prediction based on an offset-corrected internal resistance indicative of a difference between a modeled internal resistance based on the plurality of battery operating parameters for the selected discharge cycle and the offset.
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Citations
17 Claims
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1. A method for predicting power-delivery performance for a battery, comprising:
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retrieving a plurality of battery operating parameters for a selected discharge cycle; receiving a user-defined power level; calculating an offset indicative of a difference between a modeled internal resistance of the battery and an observed internal resistance generated from a calibration discharge cycle of the battery prior to the selected discharge cycle; outputting a battery power-delivery performance prediction based on an offset-corrected internal resistance indicative of a difference between a modeled internal resistance based on the plurality of battery operating parameters and the offset; and outputting a battery power-delivery performance prediction based on the offset-corrected internal resistance and the user-defined power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for predicting power-delivery performance for a battery, comprising:
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receiving a user-defined power level; retrieving a plurality of battery operating parameters for a current discharge cycle in real time; calculating an offset indicative of a difference between a modeled internal resistance of the battery and an observed internal resistance generated from a calibration discharge cycle of the battery prior to the current discharge cycle; and outputting, during the current discharge cycle, a battery power-delivery performance prediction based on an offset corrected internal resistance indicative of a difference between a modeled internal resistance based on the plurality of battery operating parameters and the offset, and the user-defined power level. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for predicting power-delivery performance for a battery, comprising:
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retrieving a plurality of battery operating parameters for a selected discharge cycle; receiving a user-adjusted power level that is different from a received user-defined power level; calculating an offset indicative of a difference between a modeled internal resistance of the battery and an observed internal resistance generated from a calibration discharge cycle of the battery prior to the selected discharge cycle; outputting a battery power-delivery performance prediction based on an offset-corrected internal resistance indicative of a difference between a modeled internal resistance based on the plurality of battery operating parameters and the offset; and outputting an updated battery power-delivery performance prediction based on the offset-corrected internal resistance and a user-adjusted power level.
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17. A method for predicting power-delivery performance for a battery, comprising:
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retrieving a plurality of battery operating parameters for a selected discharge cycle; calculating an offset indicative of a difference between a modeled internal resistance of the battery and an observed internal resistance generated from a calibration discharge cycle of the battery prior to the selected discharge cycle; outputting a battery power-delivery performance prediction based on an offset-corrected internal resistance indicative of a difference between a modeled internal resistance based on the plurality of battery operating parameters and the offset, wherein the battery power-delivery performance prediction includes a battery state-of-health indicating whether the battery can deliver power for at least a target time; receiving a user-defined target time; and adjusting the battery state-of-health based on the user-defined target time.
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Specification