Control method of laundry machine

Abstract

The control method of a laundry machine comprises re-performing a laundry distributing step in case unbalance generated in a front portion of a drum is sensed in at least one step of an accelerating step and a unbalance sensing step.

1 . A control method of a laundry machine comprising:
 re-performing a laundry distributing step in case unbalance generated in a front portion of a drum is sensed in at least one step of an accelerating step and a unbalance sensing step.   
     
     
         2 . The control method as claimed in  claim 1 , wherein it is determined, based on vibration sensed in the drum, whether the front portion unbalance of the drum is generated. 
     
     
         3 . The control method as claimed in  claim 2 , wherein it is determined, based on a forward/rearward vibration sensed in the drum, whether the front portion unbalance of the drum is generated. 
     
     
         4 . The control method as claimed in  claim 2 , wherein the sensing of the vibration is implemented at higher a RPM of the drum than a transient region. 
     
     
         5 . The control method as claimed in  claim 4 , wherein the sensing of the vibration is implemented when the drum is rotated at a constant speed. 
     
     
         6 . The control method as claimed in  claim 4 , wherein the sensing of the vibration is implemented in a region of the RPM from 350 to 400 RPM. 
     
     
         7 . A control method of a laundry machine comprising:
 sensing an amount of the unbalance;   identifying a position of the unbalance inside a drum; and   re-performing a laundry distributing step based on the sensed unbalance amount and the unbalance position inside the drum.   
     
     
         8 . The control method as claimed in  claim 7 , wherein the laundry distributing step is re-implemented in case the sensed unbalance is a reference unbalance value or more or in case unbalance is generated in a front portion of the drum. 
     
     
         9 . The control method as claimed in  claim 8 , wherein it is determined based on a forward/rearward vibration value of the drum whether the front portion unbalance is generated in the drum. 
     
     
         10 . A control method of a laundry machine comprising:
 sensing an amount of the unbalance;   identifying a position of the unbalance inside a drum; and   adjusting an allowable reference unbalance value allowing acceleration of a drum rotation speed based on the unbalance position of the drum   
     
     
         11 . The control method as claimed in  claim 10 , wherein the unbalance position of the drum is determined based on a forward/rearward vibration value of the drum. 
     
     
         12 . The control method as claimed in  claim 11 , wherein a reference unbalance value allowing acceleration of a drum rotation speed is set differently according to unbalance generated in a front portion, center portion or rear portion of the drum. 
     
     
         13 . The control method as claimed in  claim 12 , wherein the reference unbalance value set for the unbalance generated in the front portion of the drum is substantially smaller than the reference unbalance value set to the unbalance generated in the rear portion of the drum. 
     
     
         14 . 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. 
     
     
         15 . 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. 
     
     
         16 . The control method as claimed in  claim 1 , wherein a tub is supported rigidly more than a drum being supported by a suspension assembly.