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US 11,899,072 B2Granted
Method for estimating depth of discharge of battery
AssigneeJoules Miles Co., Ltd.
InventorYu Min Chen
Life of this patent
Estimating the term…
Abstract
A method for estimating DoD of a battery includes obtaining voltage Va at a first electric charge rate A(Ia) and voltage Vb at a second electric charge rate B(Ib) by checking a voltage-DoD table based on DoD of an experimental battery respectively; measuring voltage V of the experimental battery; substituting Ia, Ib, Va, Vb and V into an expression to calculate an estimated current lest; and using a Coulomb counter to update the voltage-DoD table and estimate the DoD of the experimental battery.
Claims2
A method for estimating Depth of Discharge (DoD) of a battery, comprising the steps of:
- (1) obtaining voltage Va at a first electric charge rate A(Ia) and voltage Vb at a second electric charge rate B(Ib) by checking a voltage-DoD table based on DoD of an experimental battery respectively;
- (2) measuring voltage V of the experimental battery;
- (3) substituting Ia, Ib, Va, Vb and V into an expression
- I
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- I
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- to calculate an estimated current lest;
- and
- (4) using a Coulomb counter to update the voltage-DoD table and estimate the DoD of the experimental battery.
31 more elements
Dependencies are inferred from the claim text.