Methods and Systems for Battery Management and Charger Control
First Claim
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1. A battery system comprising:
- a battery pack comprising a plurality of battery cells;
a charger control circuit configured to receive unregulated power from a source and to provide regulated power to the battery pack; and
a battery management system configured to individually monitor and control the plurality of battery cells and the charger control circuit.
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Abstract
A battery system including a battery pack having a plurality of battery cells and a charger control circuit configured to receive unregulated power from a source and to provide regulated power to the battery pack. The battery system also includes a battery management system configured to individually monitor and control the plurality of battery cells and the charger control circuit.
15 Citations
19 Claims
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1. A battery system comprising:
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a battery pack comprising a plurality of battery cells; a charger control circuit configured to receive unregulated power from a source and to provide regulated power to the battery pack; and a battery management system configured to individually monitor and control the plurality of battery cells and the charger control circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for charging a battery pack comprising a plurality of battery cells, the method comprising:
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receiving an unregulated power from a source; monitoring a voltage level of each of the plurality of battery cells; determining if the voltage level of any of the plurality of battery cells exceeds a set-point voltage; based on determining that the voltage level of one of the plurality of battery cells exceeds the set-point voltage, providing a regulated taper current to the plurality of battery cells to maintain the voltage of each of the plurality of battery cells; and based on determining that the voltage level of all of the plurality of battery cells are below the set-point voltage, providing a regulated charging current to the plurality of battery cells to increase the voltage of each of the plurality of battery cells. - View Dependent Claims (11, 12, 13, 14)
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15. A method for operating a battery system including a battery pack having a plurality of cells comprising:
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initializing the battery system by testing one or more functions of the battery system and one or more peripheral power assistance components; determining if the battery system is in a charge state or a discharge state; in response to the battery system being in the charge state, providing a controllable charge to each of the plurality of cells in the battery pack and individually monitoring a charge level of each of the plurality of cells, a temperature of battery pack and a current draw of each of the plurality of cells; in response to the battery system being in the discharge state, individually monitoring the charge level of each of the plurality of cells, the temperature of battery pack and a current drawn from each of the plurality of cells; in response to determining that the temperature of the battery pack exceeds a threshold value, operating the battery system in a soft disable state, wherein during the soft disable state the battery system periodically checks the battery pack for one or more fault conditions; and in response to detecting one or more severe fault conditions, operating the battery system in a panic state. - View Dependent Claims (16, 17, 18, 19)
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Specification