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公开(公告)号：US20240410099A1
公开(公告)日：2024-12-12
申请号：US18666697
申请日：2024-05-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungmo LEE , Junhyun PARK
IPC: D06F33/48 , D06F33/40 , D06F37/30 , D06F103/26 , D06F105/46
Abstract: A washing machine includes: a drum configured to be rotatable inside a tub; a motor including a stator and a rotor, and configured to rotate the drum; an inverter circuit connected to the motor; and at least one processor configured to compensate for a q-axis current command value of the motor based on an mth-order harmonic component (m is a natural number) and a position of the rotor, and control the inverter circuit to drive the motor based on the compensated q-axis current command value, the mth-order harmonic component being filtered by a bandpass filter from a speed error value of the rotor.
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公开(公告)号：US20230295855A1
公开(公告)日：2023-09-21
申请号：US18323994
申请日：2023-05-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungmo LEE , Junhyun PARK
IPC: D06F34/18
CPC classification number: D06F34/18 , D06F2103/04
Abstract: A washing machine capable of reducing motor noise during a spin-drying cycle includes: a rotating tub for accommodating laundry; a motor connected to the rotating tub; a driving circuit for supplying driving current to the motor to rotate the motor; a sensor for outputting sensing values that vary according to a weight of the laundry; and a control unit for controlling the driving circuit to decelerate the motor when the speed of the motor reaches a target rotation speed during the spin-drying cycle, wherein the motor is decelerated at a target rotational deceleration rate determined on the basis of the weight of the laundry.
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公开(公告)号：US20210062403A1
公开(公告)日：2021-03-04
申请号：US17011896
申请日：2020-09-03
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jungchul CHOI , Sungmo LEE , Jeonghoon KANG , Hyungwoo LEE
Abstract: A controlling method for a dryer is provided. The controlling method includes the steps of rotating a drum in a first direction and a second direction which is an opposite direction to the first direction by a motor, measuring the load of the motor and identifying the weight of drying materials based on the lower motor load among the load of the motor measured during rotation in the first direction and the load of the motor measured during rotation in the second direction.
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公开(公告)号：US20210017686A1
公开(公告)日：2021-01-21
申请号：US16947115
申请日：2020-07-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seokmo CHANG , Junhyun PARK , Jeonghoon KANG , Sungmo LEE , Suhwan JI
Abstract: A washing machine and a method for controlling thereof. A washing machine including a spin basket, the washing machine including a driving unit configured to rotate the spin basket, a sensor configured to detect an operation of the washing machine, a display configured to display information, and a processor configured to, based on a user command for managing the washing machine being received, perform a cleaning course for cleaning the spin basket, obtain diagnosis information regarding the washing machine using the sensor while the cleaning course is performed, and display the obtained diagnosis information on the display. The processor is configured to perform the cleaning course by controlling the driving unit to supply wash water to the spin basket and rotate the spin basket filled with the wash water.
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公开(公告)号：US20230323585A1
公开(公告)日：2023-10-12
申请号：US18189953
申请日：2023-03-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jungchul CHOI , Sungmo LEE , Suhwan JI
CPC classification number: D06F34/08 , D06F2105/48 , D06F33/30
Abstract: A washing machine according to one aspect of the disclosure comprises: a body having a laundry input port; a water tank provided inside the body and for storing water; a drum rotatably provided inside the water tank; a pulsator provided inside the drum and rotating in the direction opposite from the rotational direction of the drum; a first motor providing a driving force to the pulsator; a second motor providing a driving force to the drum; a first inverter controlling a current applied to the first motor; a second inverter controlling a current applied to the second motor and having a temperature sensing function; and a control unit controlling the first inverter such that the rotational speed of the first motor and/or the rotation time per period of the first motor is reduced if the temperature of the second inverter reaches a predetermined first temperature.
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Patent Agency Ranking
公开(公告)号：US20230295854A1
公开(公告)日：2023-09-21
申请号：US18089881
申请日：2022-12-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sugkil SEO , Junhyun PARK , Sungmo LEE
CPC classification number: D06F34/18 , D06F33/34 , D06F2103/04
Abstract: A washing machine including a drum, a driving circuit configured to apply a driving current to a motor which rotates the drum, a current sensor configured to detect the driving current, and a controller configured to perform a weight detection process and a material detection process based on a selection of a laundry course, perform a current detection process in which a value of the driving current is detected while the drum is being rotated based on a type of material of the laundry determined in the material detection process, and determine a process condition to be applied to the laundry course identified by the selection based on the value of the driving current detected in the current detection process and a value of weight of the laundry determined in the weight detection process.
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公开(公告)号：US20230119410A1
公开(公告)日：2023-04-20
申请号：US17889104
申请日：2022-08-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungmo LEE , Junhyun PARK
Abstract: A washing machine includes a drum, a pulsator, a motor including a stator, a first rotor connected to the drum and second rotor connected to the pulsator, an inverter circuit connected to the motor, and at least one processor configured to control the inverter circuit to selectively drive the motor based on a plurality of driving modes, the plurality of driving modes including a first driving mode to rotate only the first rotor, a second driving mode to rotate only the second rotor, or a third driving mode to rotate both the first rotor and the second rotor, control the inverter circuit to stop both the first rotor and the second rotor in response to changing from one of the plurality of driving modes to an other one of the plurality of driving modes, and control the inverter circuit to drive the motor based on the changed driving mode.
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公开(公告)号：US20210025097A1
公开(公告)日：2021-01-28
申请号：US16939336
申请日：2020-07-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungmo LEE , Junhyun PARK , Seokmo CHANG , Jeonghoon KANG
Abstract: Disclosed herein is a washing machine capable of identifying whether laundry of an inner tub includes waterproof clothing. The washing machine includes a cabinet provided with an opening at an upper portion thereof, an outer tub provided in the cabinet, an inner tub provided in the outer tub, a motor configured to rotate the inner tub, a camera configured to capture an image of an inside of the inner tub, and a controller configured to control the motor to increase a rotational speed of the inner tub to a first rotational speed during spinning. The controller is configured to control the motor to set the rotational speed of the inner tub to a second rotational speed, which is less than the first rotational speed, based on the image of the inside of the inner tub captured by the camera during the spinning.
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公开(公告)号：US20250092594A1
公开(公告)日：2025-03-20
申请号：US18829120
申请日：2024-09-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyomin AHN , Jehyung CHO , Jeongil KANG , Seunghoon KIM , Junhyun PARK , Sungmo LEE , Seunghun LEE , Junghyun LEE
Abstract: A washing machine including a motor regenerative braking configuration uses a buck power converter capable of reducing a direct current (DC) voltage, in association with charging an energy storage device when a voltage of a DC link capacitor becomes greater than or equal to a certain voltage. The washing machine uses the buck power converter in association with discharging the energy storage device and charging the DC link capacitor when the voltage of the DC link capacitor decreases. The washing machine may utilize regenerative braking energy by reducing or increasing a voltage amount provided from the energy storage device to a load by using a power conversion device.
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公开(公告)号：US20250092593A1
公开(公告)日：2025-03-20
申请号：US18968562
申请日：2024-12-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungmo LEE , Seunghoon KIM , Junhyun PARK
IPC: D06F33/40 , D06F103/46 , D06F105/46
Abstract: A washing machine that minimizes noise of a motor while maintaining deceleration of the motor is provided. The washing machine includes a drum, a motor configured to rotate the drum, an inverter circuit configured to drive the motor, memory, comprising one or more storage media, storing instructions, and one or more processors communicatively coupled to the inverter circuit and the memory. The instructions, when executed by the one or more processors individually or collectively, cause the washing machine to control the inverter circuit based on a d-axis current command value and a q-axis current command value and control the inverter circuit to perform a soft brake for a preset time and control the inverter circuit to perform a short brake based on an elapse of the preset time, for decelerating the motor.
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