Method for determining battery capacity
First Claim
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1. A method comprising:
- monitoring the voltage of a power source connector for charging a battery;
determining that the battery has entered a transition phase based on sensing an abrupt change in the voltage; and
in response to determining that the battery is in the transition phase, determining a capacity of the battery based on a transition phase battery capacity model that defines the battery'"'"'s capacity as a function of the battery'"'"'s voltage;
the transition phase occurring upon connection of the battery to a power source or disconnection of the battery from a power source, in which the battery'"'"'s capacity as a function of voltage differs from both a charge curve and a discharge curve of the battery.
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Abstract
A method includes monitoring the voltage of a power source connector for charging a battery. A determination is made that the battery has entered a transition phase based on sensing an abrupt change in the voltage. In response to determining that the battery is in the transition phase, a capacity of the battery is determined based on a transition phase battery capacity model that defines the battery'"'"'s capacity as a function of the battery'"'"'s voltage.
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Citations
23 Claims
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1. A method comprising:
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monitoring the voltage of a power source connector for charging a battery; determining that the battery has entered a transition phase based on sensing an abrupt change in the voltage; and in response to determining that the battery is in the transition phase, determining a capacity of the battery based on a transition phase battery capacity model that defines the battery'"'"'s capacity as a function of the battery'"'"'s voltage; the transition phase occurring upon connection of the battery to a power source or disconnection of the battery from a power source, in which the battery'"'"'s capacity as a function of voltage differs from both a charge curve and a discharge curve of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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determining that a battery has entered a transition phase initiated by a change in direction of current through the battery; in response to determining that the battery is in the transition phase, determining a capacity of the battery based on a transition phase battery capacity model that defines the battery'"'"'s capacity as a function of the battery'"'"'s voltage; and determining that the transition phase has ended based on the lapse of a predetermined time period from the start of the transition phase; the transition phase occurring upon connection of the battery to a power source or disconnection of the battery from a power source, in which the battery'"'"'s capacity as a function of voltage differs from both a charge curve and a discharge curve of the battery. - View Dependent Claims (10, 11, 12)
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13. A method comprising:
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determining that a battery has entered a transition phase initiated by a change in direction of current through the battery; in response to determining that the battery is in the transition phase, determining a capacity of the battery based on a transition phase battery capacity model that defines the battery'"'"'s capacity as a function of the battery'"'"'s voltage; and determining that the transition phase has ended based on the battery voltage having changed by a predetermined voltage value from the battery voltage at the start of the transition phase; the transition phase occurring upon connection of the battery to a power source or disconnection of the battery from a power source, in which the battery'"'"'s capacity as a function of voltage differs from both a charge curve and a discharge curve of the battery. - View Dependent Claims (14, 15, 16)
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17. A method comprising:
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determining a transition phase battery capacity model as a function of both a non-transition battery capacity charge model and a non-transition battery capacity discharge model, all three models defining a battery'"'"'s capacity as a function of its voltage; the transition phase occurring upon connection of the battery to a power source or disconnection of the battery from a power source, in which the battery'"'"'s capacity as a function of voltage differs from both a charge curve and a discharge curve of the battery. - View Dependent Claims (18, 19)
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20. A method comprising:
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determining if a battery is in a charging state, a discharging state, or a transition phase, the transition phase occurring upon connection of the battery to a power source or disconnection of the battery from a power source, in which the battery'"'"'s capacity as a function of voltage differs from both a charge curve and a discharge curve of the battery; if the battery is in the charging state, then determining the battery'"'"'s capacity through the battery'"'"'s charge capacity model as a function of voltage; if the battery is in the discharging state, then determining the battery'"'"'s capacity through the battery'"'"'s discharge capacity model as a function of voltage; if the battery is in the transition phase, then determining the battery'"'"'s capacity through a transition capacity model as a function of voltage. - View Dependent Claims (21, 22, 23)
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Specification