A method controls a laundry treatment apparatus that includes a drum in which a target object to be dried is put, a drum motor to drive the drum, an air duct to guide air into the drum, a heat pump provided in the air duct to dehumidify and heat the air, a blower fan to move the air of the air duct, and a blower motor to drive the blower fan. The method includes a drum driving step for repeatedly driving the drum by accelerating and decelerating the drum, a steam supply step for supplying or stopping steam for a predetermined time during execution of the drum driving step, and an air supply step for circulating internal air of the drum during execution of the drum driving step. The circulation of the internal air of the drum is stopped during execution of the steam supply step.

A dryer appliance includes a drum rotatably mounted within a cabinet for receiving a load of clothes during a drying cycle. A temperature sensor measures a temperature of air circulated through the drum and a controller obtains a remaining moisture content of the load of clothes from a washing machine appliance, obtains a measured air temperature using the temperature sensor, determines a restriction level of a vent based at least in part on the measured air temperature, and adjusts at least one operating parameter of the dryer appliance based at least in part on the remaining moisture content and the restriction level.

A vent system for a dryer, may include an exhaust air conduit configured to provide an airstream to a dryer; a sensor within the conduit and configured to measure the airstream; and a controller configured to receive sensor data from the sensor and determine an airflow. A method for detecting a variation in airflow through a vent of a dryer may include receiving sensor data from at least one sensor in an air conduit of a clothes dryer; determining an estimated airflow based on the sensor data; comparing the estimated airflow to a predetermined expected airflow; and adjusting the estimated airflow in response to the estimated airflow not being within a predefined margin of the predetermined expected airflow.

A method is provided for controlling a drying cycle of a laundry dryer having a laundry drum and an air stream fan for circulating drying air through said laundry drum. The method includes the steps of: starting a drying cycle (14); performing the drying cycle (16); detecting an electric resistance and/or conductivity of the laundry during the drying cycle (16) for estimating a dryness level of the laundry; comparing the electric resistance and/or conductivity of the laundry with an end cycle condition (20; 28, 30; 36); and finishing the drying cycle (16), if the end cycle condition (20; 28, 30; 36) is fulfilled. The end cycle condition (20; 28, 30; 36) depends on the rotation speed (S.sub.D) of the laundry drum and/or on the rotation speed (S.sub.F) of the air stream fan.

Disclosed herein is a method of controlling a laundry treating apparatus, if a user selects a uniform course, including performing a preheating operation of a heater to generate steam, performing a first cooling operation to operate a blower unit and a moving hanger after the preheating operation has been terminated, performing a steam operation to operate the blower unit and a steam unit and to circulate steam to a treating chamber after the first cooling operation has been terminated, performing a standby operation to operate the blower unit after the steam operation has been terminated, performing a second cooling operation to operate the blower unit after the standby operation has been terminated, and performing a drying operation to operate the blower unit and a heat pump unit and to provide heat to the treating chamber to dry the treating chamber after the second cooling operation has been terminated.

An electronic device and a control method therefor are provided. The clothing management device includes a sensor, a deodorizing device for removing a contaminant source of clothing received in the clothing management device, a perfuming device for spraying aroma onto clothing, and a processor for, when a user command for managing clothing is received, controlling the deodorizing device to perform deodorization for removing a contaminant source of the clothing, and, when it is determined that the concentration of the contaminant source in the clothing management device sensed by the sensor is less than or equal to a preconfigured threshold value, controlling the deodorizing device to stop the deodorization and controlling the perfuming device to perfume the clothing by using aroma.

A method of operating a laundry treating appliance for treating laundry according to a treating cycle of operation. The laundry treating appliance comprises a treating chamber for receiving the laundry that is selectively accessible through a door movable between opened and closed positions. The method comprises determining at the end of a laundry treating cycle whether the door has been opened and subsequently reclosed and reducing humidity in the treating chamber after the determination that the door has been reclosed.

A method for operating a dryer appliance includes obtaining an initial operating temperature, obtaining a first temperature set point and a second temperature set point lower than the first temperature set point, wherein the first temperature set point and the second temperature set point are based at least in part on the initial operating temperature, operating the dryer appliance at the initial operating temperature, determining that a restriction level within the dryer appliance exceeds a restriction threshold, and operating the dryer appliance at the first temperature set point, lower than the initial operating temperature, upon determining that the restriction level exceeds the restriction threshold.

A dryer appliance and a method of operating the same are provided. In one aspect, the dryer appliance includes a drum rotatably mounted within a cabinet. The drum defines a chamber that is in fluid communication with a conditioning system of the dryer appliance. The conditioning system heats air circulating therethrough and removes water from the process air. A collection tank collects the water and a drain pump removes water from the collection tank intermittently when the water reaches a predetermined level. The frequency at which the drain pump removes water from the collection tank is utilized to determine the moisture extraction rate indicative of the rate at which moisture is removed from the clothes. The moisture extraction rate is utilized to control the mass flow rate of refrigerant in a heat pump sealed system or the process air flow rate through the closed loop air circuit.

A disclosed dryer includes a receptacle configured to contain material to be dried, an air duct configured to route recirculating air and/or fresh air to the receptacle, a heating device configured to heat the recirculating air, and at least one sensor. The sensor is configured to determine a relative humidity and/or temperature, and the air duct includes at least one adjusting element configured to modify a portion of recirculating air routed to the receptacle. The dryer further includes a control or regulating device configured to control or regulate the portion of recirculating air routed to the receptacle and/or a heating capacity of the heating device during a drying process. A disclosed method includes controlling a portion of recirculating air routed to the receptacle and/or a heating capacity of the heating device. Further, a mixture of recirculating air and fresh air are varied during heat-up, drying, and cool-down phases.