METHOD FOR DETERMINING THE AMOUNT OF LAUNDRY LOADED IN A ROTATING DRUM OF A LAUNDRY TREATING MACHINE

The present invention relates to a method for determining a laundry load of a laundry treating machine (1) comprising an outer casing (2), a washing group which is placed inside the outer casing (2) and comprises, in turn, a washing tub (3), a rotatable drum (6) housed in axially rotatable manner inside the washing tub (3) and structured for housing the laundry to be treated, the laundry treating machine (1) is further provided with an electric motor (16) for rotating the drum (6) and a motor controller (23) which is configured to control said motor (16) and comprises a power inverter device (26), and a capacitor circuit (24), which is electrically associated with the power inverter device (26) and is designed to be charged by a voltage generated by said motor (16) when the motor (16) operates in said generator mode; the method comprising the steps of: controlling the drum (6) by the motor (16) in order to cause the drum (6) to perform one or more acceleration and deceleration ramps R(i); determining first values (Vbkd(j)) which are indicative of the voltages across the capacitor circuit (24) during said one or more deceleration ramps R(i); determining a maximum voltage value (VCMM) based on the biggest value of the determined first values (Vbkd(j)); determining the amount of laundry load on the basis of the maximum voltage value (VCMM).