METHOD AND APPARATUS FOR ESTIMATING BATTERY LIFE DURING DRIVING OF ELECTRICAL VEHICLE (EV)
First Claim
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1. An apparatus for estimating a battery life, the apparatus comprising:
- a battery monitor configured to monitor an output signal from a battery;
a steady state detector configured to detect a first steady state in which the output signal stays in a steady state and a second steady state differing from the first steady state; and
an estimator configured to estimate a battery life from a variation of the output signal in a transient state in which the output signal transitions from the first steady state to the second steady state.
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Abstract
An apparatus for estimating a battery life includes a battery monitor configured to monitor an output signal from a battery; a steady state detector configured to detect a first steady state in which the output signal stays in a steady state and a second steady state differing from the first steady state; and an estimator configured to estimate a battery life from a variation of the output signal in a transient state in which the output signal transitions from the first steady state to the second steady state.
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Citations
23 Claims
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1. An apparatus for estimating a battery life, the apparatus comprising:
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a battery monitor configured to monitor an output signal from a battery; a steady state detector configured to detect a first steady state in which the output signal stays in a steady state and a second steady state differing from the first steady state; and an estimator configured to estimate a battery life from a variation of the output signal in a transient state in which the output signal transitions from the first steady state to the second steady state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of estimating a battery life, the method comprising:
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monitoring an output signal from a battery; detecting a first steady state in which the output signal stays in a steady state; detecting a second steady state differing from the first steady state; and estimating a battery life from a variation of the output signal in a transient state in which the output signal transitions from the first steady state to the second steady state. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for estimating a battery life, the apparatus comprising:
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a battery monitor configured to monitor a voltage signal and a current signal output from a battery; a detector configured to detect a change in the voltage signal and a change in the current signal between a first point in time at which the current signal departs from a first current range after remaining in the first current range for at least a first minimum period of time and a second point in time at which the current signal enters a second current range in which the current signal remains for at least a second minimum period of time; and an estimator configured to estimate a battery life of the battery based on the change in the voltage signal and the change in the current signal. - View Dependent Claims (22, 23)
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Specification