METHOD FOR MEASURING ELECTRIC CHARGE OF A BATTERY
First Claim
1. A method for measuring electric charge of a battery, comprising:
- providing a lookup table storing a plurality of preset measurement confirmation voltages and a plurality of set electric charge;
measuring a first voltage of the battery as a start point;
calculating an end point according to the lookup table and the start point;
measuring a voltage and a current of the battery until a measured voltage reaches a preset measurement confirmation voltage corresponding to the end point;
calculating a set electric charge according to the lookup table from the start point to the end point;
calculating an actual electric charge from the start point to the end point; and
correcting the set electric charge according to a difference between the actual electric charge and the set electric charge.
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Accused Products
Abstract
A method for measuring electric charge of a battery is provided. The method includes the following steps. A lookup table is provided that stores a plurality of preset measurement confirmation voltages and a plurality of set electric charge. A first voltage of the battery is measured as a start point. An end point is calculated according to the lookup table and the start point. A voltage and a current of the battery are measured until a measured voltage reaches a preset measurement confirmation voltage corresponding to the end point. A set electric charge is calculated according to the lookup table from the start point to the end point. An actual electric charge is calculated from the start point to the end point. The set electric charge is corrected according to a difference between the actual electric charge and the set electric charge.
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Citations
14 Claims
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1. A method for measuring electric charge of a battery, comprising:
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providing a lookup table storing a plurality of preset measurement confirmation voltages and a plurality of set electric charge; measuring a first voltage of the battery as a start point; calculating an end point according to the lookup table and the start point; measuring a voltage and a current of the battery until a measured voltage reaches a preset measurement confirmation voltage corresponding to the end point; calculating a set electric charge according to the lookup table from the start point to the end point; calculating an actual electric charge from the start point to the end point; and correcting the set electric charge according to a difference between the actual electric charge and the set electric charge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for measuring electric charge of a battery, comprising:
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obtaining a plurality of battery measurement parameters every preset time period; generating an average current according to at least one of the battery measurement parameters; calculating a set electric charge of a voltage region by using the average current in a lookup table; calculating an actual electric charge generated in the voltage region; and correcting the set electric charge according to a difference between the actual electric charge and the set electric charge. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification