Method for controlling cleaner
AssigneeLG Electronics Inc.
InventorsSunku Kwon, Sehwa Choe, Donghyun Lim, Chaseung Jun
Life of this patent
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Abstract
The present disclosure provides a control method for automatically detecting what kind of nozzle is a nozzle mounted on a cleaner by using different starting current profiles. The cleaner may include a suction unit for suctioning dust, and various nozzles which are detachable from the suction unit. The nozzle may include a rotation cleaning unit which is accommodated in the nozzle to clean a surface to be cleaned, and a nozzle driving unit for driving the rotation cleaning unit. The nozzle may exhibit different starting current profiles depending on the number of rotations or reduction ratio of the nozzle driving unit, or whether an auxiliary control unit is included.
Claims18
A method for controlling a vacuum cleaner, the vacuum cleaner includes a suctioning portion;
- a fan motor for generating a suction force for sucking air along the suctioning portion;
- a first nozzle including a first nozzle body removably attachable to the suctioning portion, and a first nozzle driver accommodated in the first nozzle body for providing power to remove dusts;
- a second nozzle including a second nozzle body removably attachable to the suctioning portion, and a second nozzle driver accommodated in the second nozzle body for providing power to remove dusts;
- and a measuring device for measuring a current value based on a control signal applied to the first nozzle or the second nozzle, wherein one of the first nozzle and the second nozzle is connected to the suctioning portion in an exchangeable manner, the method comprises:
- a fan motor starting operation of operating the fan motor and starting to measure the current value in said one nozzle connected to the suctioning portion;
- a nozzle sensing operation of sensing which nozzle among the first nozzle and the second nozzle is said one nozzle connected to the suctioning portion;
- and
- a nozzle operation selecting operation of selecting an operation scheme of the fan motor or the connected nozzle based on the nozzle sensed in the nozzle sensing operation,
- wherein the nozzle sensing operation includes:
- sensing the first nozzle or the second nozzle, based on:
- a difference between revolutions per minute of the first nozzle driver and revolutions per minute of the second nozzle driver;
- whether said one of the first nozzle and the second nozzle includes an auxiliary controller;
- or a difference between current values of the first nozzle and the second nozzle when a power transmitter in the first nozzle driver and a power transmitter in the second nozzle driver are set to have different speed reduction ratios.
A method for controlling a vacuum cleaner, wherein the vacuum cleaner includes a suctioning portion;
- a fan motor for generating a suction force for sucking air along the suctioning portion;
- a first nozzle including a first nozzle body removably attachable to the suctioning portion, and a first nozzle driver accommodated in the first nozzle body for providing power to remove dusts;
- a second nozzle including a second nozzle body removably attachable to the suctioning portion, and a second nozzle driver accommodated in the second nozzle body for providing power to remove dusts;
- and a measuring device for measuring a current value based on a control signal applied to the first nozzle or the second nozzle, wherein one of the first nozzle and the second nozzle is connected to the suctioning portion in an exchangeable manner, wherein the method comprises:
- a first delay operation of suspending power supply to the connected nozzle for a preset first delay time when the vacuum cleaner is turned on after a preset instantaneous power supply time elapses after the vacuum cleaner is turned off;
- a fan motor restarting operation of operating the fan motor and starting to measure the current value in said one nozzle connected to the suctioning portion after the first delay time elapses;
- a nozzle sensing operation of sensing which nozzle among the first nozzle and the second nozzle is said one nozzle connected to the suctioning portion;
- and
- a nozzle operation selecting operation of selecting an operation scheme of the fan motor or the connected nozzle based on the nozzle sensed in the nozzle sensing operation,
- wherein the nozzle sensing operation includes:
- distinguishing the first nozzle and the second nozzle from each other, based on:
- a difference between revolutions per minute of the first nozzle driver and revolutions per minute of the second nozzle driver;
- whether said one of the first nozzle and the second nozzle includes an auxiliary controller;
- or a difference between current values of the first nozzle and the second nozzle when a power transmitter in the first nozzle driver and a power transmitter in the second nozzle driver are set to have different speed reduction ratios.
Dependencies are inferred from the claim text.