A method is provided for controlling a laundry treating apparatus. The method may include controlling the drum to accelerate the drum to rotate at a first speed, applying a brake to stop the drum, accelerating the drum to a second speed, sensing a current being applied to the motor while the drum is accelerated to the second speed, and determining a laundry amount based on the sensed current.

A system in which the operation of an electric motor is controlled by electronically controlled switches. The system includes the motor having a run winding and a start winding, a heating component, and a motor control subsystem. A control unit closes a first switch to energize the run winding, closes a second switch to energize the start winding, determines based on an amplitude and a lag time of a current flowing through the motor whether the motor has started and is running normally, and if so, opens the second switch to de-energize the start winding and closes a third switch to activate the heating component. The control unit determines whether the motor has started and is running normally by comparing the real time amplitude and lag time of the current to a plurality of stored amplitudes and lag times associated with different operating conditions.

A method for controlling an exhaust type clothes dryer may include measuring humidity of air passing through an interior of the drum to sense a degree of dryness of a target item, and discharging air that has passed through the drum or recirculating at least a portion of air that has passed through the drum to the drum by comparing a degree of dryness of the target item with a predetermined reference value. In the recirculating of air, an amount of recirculated air may be increased according to an increase in the degree of dryness of the target item by adjusting a degree of opening of a recirculation channel.

A domestic clothes dryer comprises a rotating drum defining a drying chamber, an air inlet upstream the drum and at least a hollow lifter mounted in the drum, wherein said hollow lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. The air inlet comprises a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through said rear perforated wall.

The laundry treating appliance can comprise a wash basket defining a washing chamber, having a clothes mover in the treating chamber to agitate the clothes during a cycle of operation for cleaning. The method can comprise supplying a wash liquid to the treating chamber and rotating the clothes mover within the treating chamber with an electric motor operating at a high duty cycle wash phase and a low duty cycle wash phase.

The present disclosure discloses a clothing course control system including a clothing treating course controller according to a clothing material and a server. The clothing treating course controller includes a hanger, a motor configured to vibrate the hanger, a motor current sensor configured to sense a motor current pattern, a clothing material classifier configured to classify a clothing material based on the motor current pattern, and a course controller configured to execute a clothing treating course according to the classified clothing material, the server includes an artificial intelligence model learner configured to generate a clothing material classifying engine trained with data related to the received motor current pattern through an artificial neural network. According to the present disclosure, a clothing treating course of a clothing treating device may be controlled using an artificial intelligence (AI) based clothing material classifying technique and a 5G network.

A washing machine includes a first washing compartment to hold a first set of articles to be washed and a second washing compartment to holds a second set of articles to be washed, the second washing compartment having an inserted position and a removed position. A liquid flow valve is configured to connect to an external liquid source to selectively control flow of liquid from the external liquid source and into one or more of the first washing compartment and the second washing compartment. An electric motor is configured to rotate the first washing compartment, and the second washing compartment, when the second washing compartment is in the inserted position. A controller, in communication with the electric motor, determines a mass of the second set of articles and then determines, as a function of the determined mass, a volume of water to be added to the second washing compartment.

A drying machine for drying clothing includes: a housing; a drum configured to receive clothing; a guide apparatus for guiding air in a path through the drum; an air moving apparatus to pull air through the guide apparatus and drum; a heating apparatus for heating air and having on and off conditions; a heat capacitor for storing and releasing heat to air when the heating element is in its off condition and the drum is rotating; power means for components of the drying machine; including at least the drying compartment assembly, rotation means, guide apparatus, air moving apparatus, heating apparatus, and control apparatus; a control apparatus for controlling at least one of the drying compartment assembly, the rotation means, guide apparatus, the air moving apparatus, the heating apparatus, and the power means; and restrictor means for restricting the air flow whereby the drum pressure is lower than ambient air pressure.

The laundry treatment machine, absent a position sensor to sense the rotor position of a motor, includes a driving unit having an DC/AC inverter, an voltage detection unit to detect output voltage, and an inverter controller to control the inverter. The output voltage detection unit includes a plurality of resistors connected between the inverter and the motor and a comparator to compare voltage detected by some of the resistors with reference voltage and to detect pulse width modulation (PWM)-based output voltage. The voltage detection unit outputs the PWM-based output voltage output from the comparator to the inverter controller in a first mode in which at least one switching device of the inverter is turned on. The voltage detection unit outputs voltage detected by other some of the resistors to the inverter controller in a second mode in which all switching devices of the inverter are turned off.

A method is provided for controlling a laundry dryer including a fan motor (26) for driving a drying air stream fan (18) with a variable speed (vf) and a drum motor (28) for driving a laundry drum (12). The method comprises the steps of setting a predetermined course for the speed (vd) of the drum motor (28), maintaining the speed (vd) of the drum motor (28) according to the predetermined course for the speed (vd) of said drum motor (28), detecting a power (Pd) or a current absorbed by the drum motor (28), and controlling the speed (vf) of the fan motor (26) on the basis of the absorbed power (Pd) or current of the drum motor (28). The speed (vf) of the fan motor (26) increases with a decreasing absorbed power (Pd) or current of the drum motor (28) and/or the speed (vf) of the fan motor (26) decreases with an increasing absorbed power (Pd) or current of the drum motor (28).