Safety charging system for electric vehicle and safety charging method therefor
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSang Kyu Lee, Young Chan Byun, Jeong Won Rho
Life of this patent
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Abstract
A safety charging system includes: a motor and an inverter which boost a voltage charged from a high-speed battery charger to a high voltage battery; a current variation amount sensor configured to detect variation amount of a current flowing in a motor coil from the high-speed battery charger; and a controller configured to determine that a rotor of the motor rotates when the variation amount of the current detected in the current variation amount sensor is greater than a reference value and perform control of interrupting a charging process.
Claims5
A safety charging system for an electric vehicle, comprising:
- a motor and an inverter, which boost a voltage charged from a high-speed battery charger to a high voltage battery;
- a current variation amount sensor configured to detect a variation amount of a current flowing in a motor coil from the high-speed battery charger;
- and
- a controller configured to:
- determine that a rotor of the motor rotates when the variation amount of the current detected in the current variation amount sensor is greater than a reference value, and
- perform control of interrupting a charging process.
A safety charging method for an electric vehicle, comprising:
- boosting a voltage supplied from a high-speed battery charger through a motor and an inverter and charging the high voltage battery with the boosted voltage, wherein the boosting includes detecting, by a current variation amount sensor, a variation amount of a current flowing in a motor coil;
- comparing, by a controller, a reference value with the variation amount of the current;
- and
- upon determining that the variation amount of the current is greater than the reference value, determining, by the controller, a rotor of the motor as rotating and performing control of interrupting the charging operation.
Dependencies are inferred from the claim text.