Controlling Method of Washing Machine

Abstract

There is provided a reliable method for sensing a laundry amount and a method for controlling a washing machine, in which a method for sensing a laundry amount is performed appropriately according to the laundry amount. According to the method of the present invention, the reliability in the sensed laundry amount is improved.

1 . A method for controlling an inverter motor direct driving washing machine, comprising the steps of:
 accelerating and rotating a tub directly driven by means of an inverter motor;   inertia-rotating the tub after a rotation speed of the tub reaches a set speed;   counting the number of revolutions during the inertia rotation of the tub; and   sensing the laundry amount by comparing the counted number of revolutions and a table storing laundry amounts based on the preset number of revolutions.   
     
     
         2 . The method according to  claim 1 , wherein the number of revolutions is acquired by the number of pulses of a speed sensor. 
     
     
         3 . The method according to  claim 1 , wherein the inverter motor is a BLDC motor.