US 9,809,920 B2
Fabric treatment apparatus and control method thereof
Hyukjin Ahn, Seoul (KR); Sungmin Ye, Seoul (KR); and Minji Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Dec. 12, 2014, as Appl. No. 14/568,961.
Claims priority of application No. 10-2013-0154956 (KR), filed on Dec. 12, 2013.
Prior Publication US 2015/0167228 A1, Jun. 18, 2015
Int. Cl. D06F 39/00 (2006.01); D06F 33/02 (2006.01); D06F 39/04 (2006.01); D06F 87/00 (2006.01)
CPC D06F 39/008 (2013.01) [D06F 33/02 (2013.01); D06F 39/04 (2013.01); D06F 39/045 (2013.01); D06F 87/00 (2013.01); D06F 2202/04 (2013.01); D06F 2204/086 (2013.01); D06F 2212/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A control method of a fabric treatment apparatus comprising a steam spray device and a water supply valve, the control method comprising:
a step (a) of controlling, by a controller, the water supply valve to be repeatedly opened and closed according to a first pattern; and
a step (b) of controlling, by the controller, the water supply valve to be repeatedly opened and closed according to a second pattern wherein the second pattern supplies a larger amount of water than in the first pattern for the same time period,
wherein a second pattern duty cycle of the water supply valve is greater than a first pattern duty cycle of the water supply valve,
wherein the control method further comprising:
sensing, by a temperature sensing unit, a temperature in the steam spray device during execution of the step (a),
wherein the step (b) is performed when the sensed temperature reaches a predetermined upper limit of temperature,
wherein the steam spray device comprises a steam generation heater for heating water, and
wherein the control method further comprises:
sensing, by a temperature sensing unit, a temperature in the steam spray device in which the steam is generated during execution of the step (a);
stopping, by the controller, operation of the steam generation heater when the sensed temperature reaches a predetermined upper limit of temperature; and
resuming, by the controller, the operation of the steam generation heater when the temperature in the steam spray device is lowered to a predetermined lower limit of temperature in a state in which the operation of the steam generation heater is stopped.