Apparatus and method for monitoring battery pack
AssigneeSamsung SDI Co., Ltd.
InventorWoo Kim
Life of this patent
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Abstract
A battery pack monitoring apparatus for and method of monitoring various characteristics of the battery pack such that when the battery pack malfunctions, the exact reason for the malfunction can be grasped. The apparatus includes a bare cell adapted to be charged/discharged with a predetermined voltage; a voltage sensor for sensing a charging/discharging voltage of the bare cell and outputting the voltage as a predetermined electrical signal; a current sensor for sensing a charging/discharging current of the bare cell and outputting the current as a predetermined electrical signal; a control unit, a current sensor, and a data storage unit.
Claims23
A battery pack monitoring apparatus comprising:
- a bare cell adapted to be charged or discharged with a predetermined voltage;
- a voltage sensor adapted to sense a charging voltage or a discharging voltage of the bare cell and output a sensed charging voltage or a sensed discharging voltage as a first predetermined electrical signal;
- a current sensor adapted to sense a charging current or a discharging current of the bare cell and output a sensed charging current or a sensed discharging current as a second predetermined electrical signal;
- a control unit adapted to convert the first predetermined electrical signal and the second predetermined electrical signal into a first digital signal and a second digital signal, operate and process the first digital signal and the second digital signal in accordance with a predetermined control command, and calculate a battery capacity with reference to the first predetermined electrical signal and the second predetermined electrical signal;
- and
- a data storage unit adapted to store the sensed charging voltage or the sensed discharging voltage, the sensed charging current or the sensed discharging current, and the calculated battery capacity of the bare cell processed by the control unit.
A method for monitoring a battery pack comprising:
- sensing a charging voltage and outputting a sensed charging voltage, sensing a charging current and outputting a sensed charging current, sensing a temperature of a rechargeable bare cell and outputting a temperature of a charging switch or a discharging switch at a predetermined interval when the rechargeable bare cell is coupled to a charger;
- and
- storing the sensed charging voltage, the sensed charging current, and the temperature of the charging switch or the discharging switch together with a calculated battery capacity.
A method for monitoring a battery pack comprising:
- sensing a discharging voltage and outputting a sensed discharging voltage of the bare cell, sensing a discharging current and outputting a sensed discharging current, sensing a temperature of a rechargeable bare cell outputting a sensed temperature of the rechargeable bare cell, and sensing a temperature of a charging switch or a discharging switch at a predetermined interval when the bare cell is coupled to an external set and outputting a sensed temperature of a charging switch or a discharging switch;
- and
- storing the sensed discharging voltage of the bare cell, the sensed discharging current, the sensed temperature of the charging switch or the discharging switch and a previously-calculated battery capacity.
Dependencies are inferred from the claim text.