Battery management system (BMS) and driving method thereof
First Claim
1. A Battery Management System (BMS), comprising:
- a sensing unit for measuring a battery current, a battery voltage, and a battery temperature; and
a Micro Control Unit (MCU) for determining a State of Charge (SOC) reset point based on the measured battery current, battery voltage and battery temperature;
wherein the BMS determines a battery overcharge state based on a current integration result after the SOC reset point.
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Accused Products
Abstract
A Battery Management System (BMS) includes a sensing unit and a Micro Control Unit (MCU). The sensing unit measures a battery current, a battery voltage, and a battery temperature. The MCU determines a State of Charge (SOC) reset point based on the measured battery current and voltage. The BMS determines a battery overcharge state using a current integration result after the SOC reset point is reached. The MCU includes an SOC calculator and a full charge determining unit. The SOC calculator transmits a present current integration value upon detecting the SOC reset point. The full charge determining unit receives the present current integration value, integrates the current using the measured battery current, and determines that the battery is being overcharged when the current integration value reaches a predetermined battery rating capacity.
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Citations
9 Claims
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1. A Battery Management System (BMS), comprising:
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a sensing unit for measuring a battery current, a battery voltage, and a battery temperature; and a Micro Control Unit (MCU) for determining a State of Charge (SOC) reset point based on the measured battery current, battery voltage and battery temperature; wherein the BMS determines a battery overcharge state based on a current integration result after the SOC reset point. - View Dependent Claims (2, 3, 4, 7)
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5. A method of driving a Battery Management System (BMS), the method comprising the steps of:
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detecting a State of Charge (SOC) reset point; integrating a measured battery current until a current integration value corresponding to the SOC reset point reaches a battery capacity rating in response to an SOC reset condition reaching the SOC reset point and a reset operation being required; comparing a current integration result and the battery capacity rating; and determining that a battery is being overcharged in response to the current integration result being equal to the battery capacity rating. - View Dependent Claims (6)
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8. A Battery Management System (BMS), comprising:
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detecting means for detecting a State of Charge (SOC) reset point; integrating means for integrating a measured battery current until a current integration value corresponding to the SOC reset point reaches a battery capacity rating in response to an SOC reset condition reaching the SOC reset point and a reset operation being required; comparing means for comparing a current integration result and the battery capacity rating; and determining means for determining that a battery is being overcharged in response to the current integration result being equal to the battery capacity rating. - View Dependent Claims (9)
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Specification