Apparatus and method for predicting the remaining discharge time of a battery
First Claim
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1. A method comprising:
- (a) measuring a dynamic parameter of the battery;
(b) obtaining a discharge current of the battery;
(c) measuring a voltage of the battery;
(d) obtaining a temperature of the battery; and
(e) predicting a remaining run time of the battery as a function of the measured battery dynamic parameter, the discharge current, the measured battery voltage, the battery temperature, a full charge battery dynamic parameter and an estimated capacity of the battery.
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Abstract
A method and apparatus for predicting the remaining discharge time of a battery are provided. The method includes measuring a dynamic parameter of the battery, obtaining a discharge current of the battery, measuring a voltage of the battery and obtaining a temperature of the battery. The remaining run time of the battery is predicted as a function of the measured battery dynamic parameter, the discharge current, the measured battery voltage, the battery temperature, a full charge battery dynamic parameter and an estimated capacity of the battery.
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Citations
15 Claims
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1. A method comprising:
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(a) measuring a dynamic parameter of the battery;
(b) obtaining a discharge current of the battery;
(c) measuring a voltage of the battery;
(d) obtaining a temperature of the battery; and
(e) predicting a remaining run time of the battery as a function of the measured battery dynamic parameter, the discharge current, the measured battery voltage, the battery temperature, a full charge battery dynamic parameter and an estimated capacity of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus comprising:
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a positive connector coupled to a positive terminal of the battery;
a negative connector coupled to a negative terminal of the battery;
a voltage sensor configured to measure a voltage of the battery;
a temperature sensor configured to measure a temperature of the battery;
a current sensor configured to measure a discharge current of the battery; and
processing circuitry configured to measure a dynamic parameter of the battery using the first and second connectors, and to predict a remaining run time of the battery as a function of the measured battery dynamic parameter, the discharge current, the measured battery voltage, the battery temperature, a full charge battery dynamic parameter and an estimated capacity of the battery. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification