METHOD AND APPARATUS FOR ELECTRIC BATTERY TEMPERATURE MAINTENANCE
First Claim
1. A method for battery cell temperature maintenance, comprising:
- determining a battery cell temperature of a battery cell is below a temperature threshold;
in response to determining the battery cell temperature is below the temperature threshold, initiating a temperature maintenance mode;
upon initiation of the temperature maintenance mode, determining a charge level of the battery cell;
in response to determining the charge level of the battery cell, initiating one of a charge sequence in which the battery cell is charged and a discharge sequence in which the battery cell is discharged;
the charge sequence initiated upon determining the charge level is equal to or less than a discharge limit;
the discharge sequence initiated upon determining the charge level is equal to or greater than a charge limit.
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Accused Products
Abstract
A method and apparatus for battery cell temperature maintenance including determining a battery cell temperature of a battery cell is below a temperature threshold and initiating a temperature maintenance mode. Upon initiation of the temperature maintenance mode, determining a charge level of the battery cell and initiating one of a charge sequence in which the battery cell is charged and a discharge sequence in which the battery cell is discharged. The charge sequence initiated upon determining the charge level is equal to or less than a discharge limit and the discharge sequence initiated upon determining the charge level is equal to or greater than a charge limit.
58 Citations
20 Claims
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1. A method for battery cell temperature maintenance, comprising:
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determining a battery cell temperature of a battery cell is below a temperature threshold; in response to determining the battery cell temperature is below the temperature threshold, initiating a temperature maintenance mode; upon initiation of the temperature maintenance mode, determining a charge level of the battery cell; in response to determining the charge level of the battery cell, initiating one of a charge sequence in which the battery cell is charged and a discharge sequence in which the battery cell is discharged; the charge sequence initiated upon determining the charge level is equal to or less than a discharge limit; the discharge sequence initiated upon determining the charge level is equal to or greater than a charge limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A battery cell temperature maintenance system, comprising:
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at least one battery cell a controller a discharging circuit; a charging circuit; and an energy reservoir; the battery cell coupled to the controller, the discharging circuit and the charging circuit, whereby the battery cell may be charged and discharged under the control and feedback of the controller; the discharging circuit and the charging circuit coupled to the energy reservoir to deliver energy from the discharging circuit to the energy reservoir and to receive energy from the energy reservoir to energize the charging circuit to charge the battery cell; the controller operable to determine a battery cell temperature of the battery cell and a charge level of the battery cell. - View Dependent Claims (18, 19, 20)
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Specification