Patent ID: 7752694

Claim:
A dehydration controlling apparatus for a washing machine comprising: a motor for rotating a washing tub within the washing machine; a driving unit for driving the motor; a storage unit in which an acceleration rate, an acceptable maximum unbalance amount and an acceptable minimum unbalance amount according to an amount of laundry in the machine are pre-stored, wherein the region between the acceptable maximum unbalance amount and the acceptable minimum unbalance amount is set between a clothes centrifugally-distributing region and a clothes tumbling region for evenly distributing clothes; and a controlling unit for repeatedly controlling an operation of increasing and decreasing a Rotation Per Minute (RPM) of a motor of the washing machine in a region between the acceptable maximum unbalance amount and the acceptable minimum unbalance amount until an unbalance amount detected is less than the allowable minimum unbalance amount, wherein when the operation of increasing or decreasing the RPM is repeatedly performed over a certain number of times, the controlling unit senses the condition as a small load and employs a small load dehydrating algorithm.