Method and device for voltage detection and charging of electric battery
First Claim
1. A method for rated voltage detection and charging of an electric battery, said method comprising the steps of:
- connecting the electric battery to a power source;
measuring a terminal voltage of the electric battery having a rated voltage being one of a first rated voltage and a second rated voltage, said first rated voltage being less than said second rated voltage;
comparing said terminal voltage to a number of threshold voltages between a minimum threshold DC voltage VMIN and a maximum threshold DC voltage VMAX;
determining a condition of the electric battery based on a comparison of said terminal voltage to said threshold voltages, said condition of the electric battery being one of ready to charge and fault;
determining that said rated voltage of the electric battery being said second rated voltage if said determined condition of the electric battery being ready to charge;
conducting a pre-charge process if said determined condition of the electric battery is neither ready to charge nor fault;
determining said rated voltage of the electric battery based on a response to said pre-charge process; and
charging the electric battery according to said rated voltage determined in the preceding step.
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Accused Products
Abstract
A device and method for rated voltage detection and charging of electric batteries. The method comprises the steps of measuring a terminal voltage of the battery having first or second rated voltages, comparing the terminal voltage to a number of threshold voltages between a minimum threshold voltage and a maximum threshold voltage, determining a condition of the battery, which can be ready to charge or fault, based on a comparison of the terminal voltage to the threshold voltages, determining that the rated voltage of the electric battery is the second rated voltage if the determined condition of the electric battery is ready to charge, conducting a pre-charge process if the determined condition of the battery is neither ready to charge nor fault, determining the rated voltage of the electric battery based on a response to the pre-charge process, and charging the electric battery according to the determined rated voltage.
624 Citations
28 Claims
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1. A method for rated voltage detection and charging of an electric battery, said method comprising the steps of:
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connecting the electric battery to a power source; measuring a terminal voltage of the electric battery having a rated voltage being one of a first rated voltage and a second rated voltage, said first rated voltage being less than said second rated voltage; comparing said terminal voltage to a number of threshold voltages between a minimum threshold DC voltage VMIN and a maximum threshold DC voltage VMAX; determining a condition of the electric battery based on a comparison of said terminal voltage to said threshold voltages, said condition of the electric battery being one of ready to charge and fault; determining that said rated voltage of the electric battery being said second rated voltage if said determined condition of the electric battery being ready to charge; conducting a pre-charge process if said determined condition of the electric battery is neither ready to charge nor fault; determining said rated voltage of the electric battery based on a response to said pre-charge process; and charging the electric battery according to said rated voltage determined in the preceding step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A device for rated voltage detection and charging of an electric battery comprising:
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a battery charging unit; and a voltage detection unit operatively connected to said battery charging unit; said voltage detection unit including a microprocessor in communication with said battery charging unit and configured to determine a condition of the electric battery based on a comparison of a terminal voltage of the electric battery to a number of threshold voltages between a minimum threshold DC voltage VMIN and a maximum threshold DC voltage VMAX, and a rated voltage of the electric battery based on a response to a pre-charge process; said condition of the electric battery being one of ready to charge and fault; said rated voltage of the electric battery being one of a first rated voltage and a second rated voltage, said first rated voltage being less than said second rated voltage; said pre-charge process conducted if said determined condition of the electric battery is neither ready to charge nor fault; said voltage detection unit further provided to activate said battery charging unit for charging the electric battery according to said determined rated voltage.
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Specification