Battery state of charge voltage hysteresis estimator
First Claim
1. A battery control module for use with a battery, comprising:
- a voltage measuring module that measures battery voltage;
a current measuring module that measures battery current; and
a state of charge (SOC) module that communicates with said current and voltage measuring modules and determines an unfiltered SOC of said battery, a characteristic of said unfiltered SOC, and a modified SOC that is based on said unfiltered SOC and said characteristic.
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Accused Products
Abstract
A battery control module is provided for use with a battery and includes a voltage measuring module that measures battery voltage, a current measuring module that measures battery current, and a state of charge (SOC) module that communicates with said current and voltage measuring modules. In some features, the SOC module determines an unfiltered SOC of said battery, a characteristic of said unfiltered SOC, and a modified SOC that is based on said unfiltered SOC and said characteristic. In other features, the SOC module determines first and second reset voltages, compares the battery voltage to the first and second reset voltages, and determines an unfiltered SOC based on said first and second reset voltages and said battery voltage.
58 Citations
24 Claims
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1. A battery control module for use with a battery, comprising:
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a voltage measuring module that measures battery voltage;
a current measuring module that measures battery current; and
a state of charge (SOC) module that communicates with said current and voltage measuring modules and determines an unfiltered SOC of said battery, a characteristic of said unfiltered SOC, and a modified SOC that is based on said unfiltered SOC and said characteristic. - View Dependent Claims (2, 3, 4, 5)
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6. A battery control module for use with a battery, comprising:
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a voltage measuring module that measures battery voltage;
a current measuring module that measures battery current; and
a state of charge (SOC) module that determines first and second reset voltages, compares the battery voltage to the first and second reset voltages, and determines an unfiltered SOC based on said first and second reset voltages and said battery voltage. - View Dependent Claims (7, 8)
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9. A method for determining a state-of-charge (SOC) of a battery, comprising:
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measuring a battery voltage;
measuring a battery current;
determining an unfiltered SOC of said battery;
determining a characteristic of said unfiltered SOC; and
determining a modified SOC that is based on said unfiltered SOC and said characteristic. - View Dependent Claims (10, 11, 12, 13)
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14. A method for determining a state-of-charge (SOC) of a battery, comprising:
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measuring a battery voltage;
measuring a battery current;
determining first and second reset voltages;
comparing the battery voltage to the first and second reset voltages; and
determining said unfiltered SOC based on said first and second reset voltages and said battery voltage. - View Dependent Claims (15, 16, 18, 19, 20, 21, 22, 23, 24)
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17. A battery control module for use with a battery, comprising:
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voltage measuring means for measuring battery voltage;
current measuring means for measuring battery current; and
state of charge (SOC) determining means for communicating with said current and voltage measuring means, determining an unfiltered SOC of said battery, determining a characteristic of said unfiltered SOC, and determining a modified SOC based on said unfiltered SOC and said characteristic.
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Specification