BATTERY MANAGEMENT SYSTEM AND METHOD
First Claim
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1. A battery management system comprising a power device, a battery, and a main switch connecting the power device and the battery, comprising:
- a sensing unit that measures a current, a voltage, and a temperature of the battery; and
an MCU that integrates the battery current to generate the integrated current value, and determines whether the battery is overcharged or over discharged, using the integrated current value.
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Abstract
A battery management system and method. The battery management system manages a battery of a hybrid vehicle including a motor, a battery, and a main switch connecting the motor and the battery. The battery management system includes a sensing unit and an MCU. The sensing unit measures the current, the voltage and the temperature of the battery. The MCU integrates the battery current to produce an integrated current value, and determines whether the battery is overcharged or over discharged using the integrated current value.
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Citations
24 Claims
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1. A battery management system comprising a power device, a battery, and a main switch connecting the power device and the battery, comprising:
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a sensing unit that measures a current, a voltage, and a temperature of the battery; and an MCU that integrates the battery current to generate the integrated current value, and determines whether the battery is overcharged or over discharged, using the integrated current value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A battery management method for a battery management system comprising a power device, a battery, and a main switch connecting the power device and the battery, the method comprising:
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calculating an initial SOC, and setting an integrated current value corresponding to the initial SOC as an initial integrated current value; generating a current integrated current value by integrating the battery current with the initial integrated current value; determining whether the battery is overcharged or over discharged using the integrated current value; detecting the battery voltage; and comparing the battery voltage with a threshold voltage range to determined whether the battery is overcharged or over discharged. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A battery management method for managing a battery, comprising:
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calculating an initial SOC of the battery; measuring the battery current to produce a battery current value; and calculating a current integrated current value of the battery using the initial SOC and the battery current value; and determining whether the battery is overcharged or over discharged using the current integrated current value. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification