Real time estimation of electrode voltages and adaptation of direct current fast charging control
AssigneeGM Global Technology Operations LLC
InventorsBharatkumar Hegde, Ibrahim Haskara, Philip James Prociw, Chen-fang Chang
Life of this patent
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Abstract
An electric vehicle includes a system for charging a battery of the electric vehicle. The system includes a sensor for obtaining a reference measurement of the battery during charging and a processor. The processor is configured to calculate an augmented state from the reference measurement, determine an anode voltage from the augmented state, compare the anode voltage to a threshold, and adjust a charging rate based on the comparison of the anode voltage to the threshold.
Claims20
A method of charging a battery, comprising:
- obtaining a reference measurement of the battery during charging;
- calculating an augmented state from the reference measurement;
- determining an anode voltage from the augmented state;
- comparing the anode voltage to a threshold;
- and
- adjusting a charging rate based on the comparison of the anode voltage to the threshold.
A system for charging a battery of an electric vehicle, comprising:
- sensor for obtaining a reference measurement of the battery during charging;
- a processor configured to:
- calculate an augmented state from the reference measurement;
- determine an anode voltage from the augmented state;
- compare the anode voltage to a threshold;
- and
- adjust a charging rate based on the comparison of the anode voltage to the threshold.
An electric vehicle, comprising:
- sensor for obtaining a reference measurement of a battery of the electric vehicle during charging;
- a processor configured to:
- calculate an augmented state from the reference measurement;
- determine an anode voltage from the augmented state;
- compare the anode voltage to a threshold;
- and
- adjust a charging rate based on the comparison of the anode voltage to the threshold.
Dependencies are inferred from the claim text.