Control method of laundry machine

Abstract

The patent application discloses a control method of a laundry machine provided with a balancer. The method includes decreasing a speed of a drum ( 320 ) in case vibration of the drum ( 320 ) sensed in an accelerating step is a predetermined value or more and rotating the drum ( 320 ) at a constant speed for a predetermined time period to implement balancing.

1 . A control method of a laundry machine comprising a balancer, the control method comprising:
 decreasing a speed of a drum in case vibration of the drum sensed in an accelerating step is a predetermined value or more; and   rotating a drum at a constant speed for a predetermined time period to implement balancing.   
     
     
         2 . The control method as claimed in  claim 1 , wherein the balancing is implemented after the speed of the drum passes a transient region of the laundry machine. 
     
     
         3 . The control method as claimed in  claim 1 , wherein the accelerating step comprises two accelerating steps, and each of the two steps sense the vibration of the drum configured to implement the balancing. 
     
     
         4 . The control method as claimed in  claim 3 , wherein the accelerating step comprises a first accelerating step and a second accelerating step and each of the first and second accelerating steps has a different target RPM. 
     
     
         5 . The control method as claimed in  claim 1 , further comprising:
 a balancing step after the rotation speed of the drum passes the transient region and before the drum enters into the accelerating step.   
     
     
         6 . The control method as claimed in  claim 1 , further comprising:
 completing the spinning cycle and notifying a user of the completion of the spinning cycle, when the vibration of the drum is sensed a predetermined number of times or more.   
     
     
         7 . The control method as claimed in  claim 1 , wherein the laundry machine comprises a driving unit comprising a shaft connected to a drum, a bearing housing to rotatably support the shaft, and a motor to rotate the shaft, and a suspension assembly is connected to the driving unit. 
     
     
         8 . The control method as claimed in  claim 1 , wherein the laundry machine comprises a rear gasket for sealing to prevent washing water from leaking from a space between a driving unit and a tub, and enabling the driving unit movable relative to the tub. 
     
     
         9 . The control method as claimed in  claim 1 , wherein a tub is supported rigidly more than a drum being supported by a suspension assembly.