Simple optimal estimator for PbA state of charge
First Claim
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1. A method of estimating a state of charge of a battery, comprising:
- modeling battery measured variables of said battery with a linear equation;
measuring a terminal current of said battery;
measuring a terminal voltage of said battery; and
processing said linear equation through a time-varying state estimator based on said terminal current and said terminal voltage to determine said state of charge.
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Abstract
A state of charge estimator for a battery includes a meter that generates a terminal voltage signal of the battery and a terminal current signal of the battery. A controller employs a linearized model of the battery and a time-varying state estimator. The controller process a synthesized input based on the terminal current and the terminal voltage to estimate the battery state of charge.
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Citations
13 Claims
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1. A method of estimating a state of charge of a battery, comprising:
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modeling battery measured variables of said battery with a linear equation;
measuring a terminal current of said battery;
measuring a terminal voltage of said battery; and
processing said linear equation through a time-varying state estimator based on said terminal current and said terminal voltage to determine said state of charge. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of estimating a state of charge of a battery, comprising:
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modeling battery measured variables of said battery based o a linear process equation;
determining a compensated input based on a terminal current of said battery and a terminal voltage of said battery; and
processing a time-varying filter based on said process equation and said compensated input. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification