BATTERY FAST CHARGING CURRENT CONTROL ALGORITHM
First Claim
1. A method for controlling charging of a battery, said method comprising:
- providing a target charge current;
measuring battery current;
determining if the target charge current is less than the measured battery current;
enabling a current integrator if the target charge current is less than the measured battery current;
integrating a charge current value over time if the current integrator is enabled to provide an integrated charge current value;
providing a target charge voltage;
measuring battery voltage;
determining if the target charge voltage is less than the measured battery voltage;
enabling a voltage integrator if the target charge voltage is less than the measured battery voltage;
integrating a charge voltage value over time if the voltage integrator is enabled; and
adding the integrated charge current value and the integrated charge voltage value to provide a charge current value that is used to charge the battery.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for charging a battery. The method includes providing a desired target charge current and measuring the battery current, and determining if the target charge current is less than the measured battery current. The method also includes enabling a current integrator if the target charge current is less than the measured battery current, and integrating a charge current value over time if the current integrator is enabled to provide an integrated charge current value. The method also includes providing a target charge voltage and measuring the battery voltage, and determining if the target charge voltage is less than the measured battery voltage. The method also includes enabling a voltage integrator if the target charge voltage is less than the measured battery voltage, and integrating a charge voltage value over time if the voltage integrator is enabled to provide an integrated voltage value.
6 Citations
20 Claims
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1. A method for controlling charging of a battery, said method comprising:
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providing a target charge current; measuring battery current; determining if the target charge current is less than the measured battery current; enabling a current integrator if the target charge current is less than the measured battery current; integrating a charge current value over time if the current integrator is enabled to provide an integrated charge current value; providing a target charge voltage; measuring battery voltage; determining if the target charge voltage is less than the measured battery voltage; enabling a voltage integrator if the target charge voltage is less than the measured battery voltage; integrating a charge voltage value over time if the voltage integrator is enabled; and adding the integrated charge current value and the integrated charge voltage value to provide a charge current value that is used to charge the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling charging of a vehicle battery, said method comprising:
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providing a desired target charge current; measuring battery current; determining if the target charge current is less than the measured battery current; enabling a current integrator if the target charge current is less than the measured battery current; integrating a charge current value over time if the current integrator is enabled to provide an integrated charge current value; providing a target charge voltage; measuring the battery voltage; determining that the target charge voltage is less than the measured battery voltage; enabling a voltage integrator if the target charge voltage is less than the measured battery voltage; integrating a charge voltage value over time if the voltage integrator is enabled to provide an integrated charged voltage value; adding the integrated charge current value and the integrated charge voltage value to provide a charge current value that is used to charge the battery; disabling the current integrator if the charging operation is in voltage control mode where the voltage integrator is enabled; disabling the voltage integrator if the charging operation is in a current control mode where the current integrator is enabled; and disabling the current integrator if the charging current is saturated. - View Dependent Claims (13, 14, 15, 16)
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17. A system for controlling charging of a battery, said system comprising:
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means for providing a target charge current; means for measuring battery current; means for determining if the target charge current is less than the measured battery current; means for enabling a current integrator if the target charge current is less than the measured battery current; means for integrating a charge current value over time if the current integrator is enabled to provide an integrated charge current value; means for providing a target charge voltage; means for measuring the battery voltage; means for determining if the target charge voltage is less than the measured battery voltage; means for integrating a charge voltage value over time if the voltage integrator is enabled; and means for adding the integrated charge current value and the integrated charge voltage value to provide a charge current value that is used to charge the battery. - View Dependent Claims (18, 19, 20)
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Specification