Electrolux Appliances Aktiebolag

Andrea De Bernardo

Fabio Altinier

Elena Pesavento

Terenzio Girotto

Luca Da Re

Piero Stocco

Lorenzo Corso

A laundry treatment machine () has an outer casing (), and a washing tub () which is arranged inside the outer casing (). A rotatable washing drum () is arranged in axially rotating manner inside the washing tub () and is structured to receive the laundry to be treated. A liquid supplying system is provided for supplying hot liquid and/or cold liquid into the washing tub (). A temperature sensor () is arranged in the washing tub () and is designed for sensing the temperature of the liquid contained in the washing tub (). An electronic control device () is configured to: determine whether the temperature sensor () is immersed in liquid; and perform a first or a second control procedure, different from one another, to control the water supplying system based on a determined immersion status of the temperature sensor ().

Laundry washing machine and control method thereof

A method to control a laundry machine. The method includes: controlling an electric motor to rotate a drum to change the rotational speed according to a prefixed reference speed profile comprising an acceleration ramp from a low speed to a prefixed high speed and a constant speed phase at the high speed, sampling first torque values generated by the motor during the acceleration ramp according to a first sample time, sampling second torque values generated by the motor during the constant speed phase according to a second sample time, calculating a third value indicative of an average torque being calculated on the basis of the second torque values, determining a fourth value by performing an integral function with respect to the first torque values less the third value, and determining the amount of laundry load on the basis of the fourth value.

Method for estimating the amount of laundry loaded in a rotating drum of a laundry washing machine

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Pordenone, Italy

Andrea De Bernardo