Charging system for vehicle and battery charging stop method thereof
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSang Kyu Lee, Jin Gyu Lim, Seung Myun Chung
Life of this patent
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Abstract
A charging system for a vehicle and a battery charging stop method thereof may provide a charging system for a vehicle and a battery charging stop method thereof, which may stop the charging of a battery upon failure of a current sensor applied to a three-phase coils of a motor configured for driving a vehicle, preventing the occurrence of the torque caused by operation of the motor.
Claims20
A charging system for a vehicle, the charging system comprising:
- a motor configured to drive a vehicle;
- a battery which is connected to the motor and supplies power to the motor;
- an inverter which is connected between the motor and the battery and configured to control a flow of a current between the motor and the battery;
- and
- a controller which is connected to the inverter and configured to control a switching duty of the inverter according to a previous duty command transmitted to the inverter before an abnormal current sensor occurs, and then decreases the switching duty of the inverter to reach zero, when the abnormal current sensor among current sensors, which are connected to the inverter and detect an amount of the current applied to three-phase coils of the motor, respectively, occurs while the battery is charged through the motor and the inverter.
A battery charging stop method of a charging system for a vehicle which includes a motor configured to drive a vehicle, a battery which is connected to the motor and supplies power to the motor, and an inverter which connects the motor with the battery, the method including:
- determining, by a controller, whether an abnormal current sensor among current sensors, which are connected to the inverter and detect an amount of a current applied to a three-phase coils of the motor, respectively, occurs while the battery is charged through the motor and the inverter;
- controlling, by the controller, a switching duty of the inverter according to a previous duty command transmitted to the inverter before the abnormal current sensor occurs, when the controller concludes that the abnormal current sensor among the current sensors occurs;
- making, by the controller, the switching duty of the inverter reach zero by decreasing the switching duty of the inverter;
- and
- determining, by the controller, that the charging of the battery is stopped when the switching duty of the inverter becomes zero.
Dependencies are inferred from the claim text.