METHOD AND CONTROL APPARATUS OF DETECTING ECCENTRICITY IN DRUM WASHING MACHINE

摘要

A method of detecting eccentricity in a drum washing machine includes: degree of eccentricity measuring step of controlling a tub to positively rotate at predetermined speed and detecting variation of rotational speed of the tub so as to measure degree of eccentricity; laundry volume compensation index measuring step of counting cases where the degree of eccentricity measured exceeds a specified value while the number of trials for eccentricity decision (PC) for measuring the degree of eccentricity of the tub is less than a predetermined number of times and setting the counted value as a laundry volume compensation index (W); laundry volume level compensating step of compensating a previously produced laundry volume level for the number of trials for eccentricity decision (PC) and the laundry volume compensation index (W) and producing a compensated laundry volume level; and eccentricity permission decision step of comparing the degree of eccentricity with a reference value of eccentricity corresponding to the compensated laundry volume level among multiple predetermined reference values of eccentricity, thereby to determine whether or not to permit the eccentricity.