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US 8,476,858 B2Granted
Refrigerator and method for controlling same
AssigneeLG Electronics Inc.
InventorsYong Hwan Eom, Myung Keun Yoo, Hyoun Jeong Shin, Ok Sun Yu, Young Jin Kim, Seung Do Han
Life of this patent
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Abstract
A refrigerator and a method for controlling the same are provided. In this refrigerator and control method, a receiving box may be automatically drawn in and out together with a door based on a movement command received at an input unit, thus enhancing user convenience and satisfaction.
Claims12
A method for controlling a refrigerator, the method comprising:
- transmitting a door closing command to a controller;
- applying power to a driving motor that transmits a moving force to the door, comprising varying an applied voltage so that a rotation number of the driving motor is reduced before the door is closed;
- determining whether the door is closed;
- and
- continuing to supply power to the driving motor for a preset time even after it is determined that the door is closed, wherein varying the applied voltage comprises:
- reducing the rotation number of the driving motor and then maintaining the reduced rotation number;
- and
- increasing the rotation number of the driving motor immediately before the door is fully closed.
5 more elements
A method for controlling a refrigerator, the method comprising:
- transmitting a door closing command to a controller;
- applying power to a driving motor that transmits a moving force to the door;
- determining whether the door is closed;
- and
- continuing to supply power to the driving motor for a preset time even after it is determined that the door is closed,
- wherein applying power to the driving motor comprises controlling a voltage applied to the driving motor so that a rotation number of the driving motor is increased immediately before the door is closed.
3 more elements
A method for controlling a refrigerator, the method comprising:
- transmitting a door closing command to a controller;
- applying power to a driving motor that transmits a moving force to the door sensing a distance of the door from a distance sensing unit when the door is in an opened position;
- reducing a voltage applied to a motor driver when the distance is determined by the distance sensing unit to be equal to or less than a first set distance;
- maintaining the voltage at a constant level after reducing the voltage by a predetermined amount;
- reducing the voltage for a predetermined time, when a door sensor senses the door is closed;
- and
- interrupting the voltage when the predetermined time elapses after the door is closed, to terminate the drawing in process of the door.
4 more elements
Dependencies are inferred from the claim text.