Weight Of The Load Patents (Class 68/12.04)
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Patent number: 11982035Abstract: A washing machine appliance includes a wash basket that is rotatably mounted within a wash tub and that defines a wash chamber for receiving a load of clothes. A basket speed sensor monitors the speed of the wash basket and a camera assembly is mounted within the wash tub for taking images of the load of clothes during and/or after a wash or rinse cycle. A controller determines the basket speed, adjusts a frame rate of the camera assembly to match the basket speed, obtains a still image from the camera assembly, analyzes the image using a machine learning image recognition process to determine a remaining moisture content (RMC) of the load of clothes, and adjusts at least one operating parameter of the washing machine appliance based on the remaining moisture content, e.g., such as ending the drain cycle when a target RMC is reached.Type: GrantFiled: November 16, 2020Date of Patent: May 14, 2024Assignee: Haier US Appliance Solutions, Inc.Inventor: Khalid Jamal Mashal
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Patent number: 11639571Abstract: A washing machine appliance includes a wash tub defining a wash chamber, a wash basket rotatably mounted within the wash tub, and a motor operably coupled to the wash basket for selectively rotating the wash basket. A controller is configured for accelerating the wash basket to a predetermined speed during an acceleration period and maintaining that speed during a steady state period. The controller further determines a power drop from the maximum power required to accelerate the wash basket to the power required to maintain the predetermined speed, and the dry load weight is calculated using this power drop and a transfer function.Type: GrantFiled: March 27, 2020Date of Patent: May 2, 2023Assignee: Haier US Appliance Solutions, Inc.Inventors: Stephen Edward Hettinger, Ryan Ellis Leonard
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Patent number: 11245544Abstract: According to an embodiment of the present invention, a method of controlling wash timing using an intelligent washer comprises determining to perform a wash, calculating a required time for the wash, predicting a return time of the user, and determining a start time of the wash to terminate the wash corresponding to the return time. According to an embodiment, the washer may be related to artificial intelligence (AI) modules, unmanned aerial vehicles (UAVs), robots, augmented reality (AR) devices, virtual reality (VR) devices, and 5G service-related devices.Type: GrantFiled: September 30, 2019Date of Patent: February 8, 2022Assignee: LG Electronics Inc.Inventor: Myunghee Lee
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Patent number: 11203829Abstract: A laundry processing apparatus and a driving method thereof for driving a laundry processing apparatus by executing an artificial intelligence (AI) algorithm and/or machine learning algorithm in a 5G environment connected for the Internet of Things are provided. The driving method may include obtaining a drive current of a motor and a rotational speed of a drum during a cycle of the laundry processing apparatus, classifying a type of load of laundry located inside the laundry processing apparatus based on the obtained drive current and rotational speed, determining whether to change a course of the laundry processing apparatus according to the type of load, outputting a recommended course corresponding to the type of load when a course change of the laundry processing apparatus is determined, and changing the cycle of the laundry processing apparatus to the recommended course upon receiving a selection signal for the recommended course.Type: GrantFiled: September 5, 2019Date of Patent: December 21, 2021Assignee: LG ELECTRONICS INC.Inventors: Sang Hyun Lee, Bon Kwon Koo, Hyun Ji Park, Seung Chul Cha
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Patent number: 11142860Abstract: There is proposed a washing machine and a control thereof capable of maximizing a mechanical force regardless of the amount and weight of laundry. By using a washing profile in which the cycle and size of a washing RPM are variable, a washing mechanical force can be maximized regardless of the amount of laundry or a change in the weight of the laundry due to moisture absorption of the laundry. In addition, the head drop behavior of the laundry can be diversified through the washing profile in which the cycle and size of the washing RPM are variable, and in this way, by allowing water (washing water) to be effectively infiltrated into the laundry, the washing performance can be improved. In addition, by continuously showing various washing operations (rubbing, tapping, centrifugal rotation, or the like), an effect of enhancing the visibility of washing can be obtained.Type: GrantFiled: July 3, 2017Date of Patent: October 12, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Jung Chul Choi, Jun Hyun Park, Wan Hee Lee
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Patent number: 11072879Abstract: A laundry washing machine and method utilize a fluid property sensor to dynamically select between different types of rinse operations, e.g., fill rinse operations or spin rinse operations, performed during a wash cycle.Type: GrantFiled: July 23, 2019Date of Patent: July 27, 2021Inventors: Phillip C. Hombroek, Christopher G. Hoppe
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Patent number: 10995443Abstract: The present invention discloses an washing/dryer appliance. The present invention further comprises a load capacity sensing apparatus coupled within an predetermine region of the cabinet which may sensing the load capacity of the inner drum. And an plurality of electric motors that may raise and lower the outer drum during one operational task of the appliance.Type: GrantFiled: May 26, 2019Date of Patent: May 4, 2021Inventor: Clarence Wheeler
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Patent number: 10870941Abstract: A control method of a laundry treatment apparatus is disclosed. The control method includes supplying electric power to a first load unit to execute a first cycle set in a first treatment device (a first step), supplying electric power to a second load unit to execute a second cycle set in a second treatment device (a second step), when an amount of current per unit time that is supplied to the laundry treatment apparatus is equal to or greater than a predetermined reference current amount, terminating the second step and executing a third cycle set in the second treatment device so as to consume a lower amount of current than an amount of current per unit time necessary to execute the second cycle (a third step), terminating the first cycle of the first treatment device (a fourth step), and executing the second cycle of the second treatment device after completing the fourth step (a fifth step).Type: GrantFiled: February 22, 2016Date of Patent: December 22, 2020Assignee: LG ELECTRONICS INC.Inventors: Kwangchul Heo, Kijung Sung
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Patent number: 10544534Abstract: A washer bottom foot is installed below a base of a washing machine and has a weighing sensor. A cavity with a downward opening is provided in the bottom foot, and the weighing sensor is installed in the cavity in a closed manner. The bottom foot comprises a connecting portion and a supporting portion, which form an integrated convex structure, wherein the connecting portion is hollow axially, the supporting portion is provided below the connecting portion, and the cavity is provided in the supporting portion and communicates with a hollow portion of the connecting portion. The supporting piece comprises a supporting unit and a fixing unit, an upper end face of the supporting unit being in contact with the weighing sensor, and a lower end face being supported on the ground.Type: GrantFiled: November 23, 2015Date of Patent: January 28, 2020Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.Inventors: Yun Tian, Gangjin Zhang, Chunxia Zhou, Feng Li
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Patent number: 10480112Abstract: A method for operating a domestic appliance with a housing, a rotationally movable drum disposed in the housing for receiving laundry, a motor for driving the drum, a control device for controlling the motor, and an evaluation unit. The method, once a program of the domestic appliance has started, includes controlling the motor via the controller such that the drum is driven by the motor and the drum is moved by an angle of less than 90 degrees. Upon attaining the angle the motor is de-energised. The method includes detecting a rotational-speed signal of the drum from when the motor is de-energised over a predetermined first period, and evaluating the detected rotational-speed signals via the evaluation unit by forming a value. The method also includes interrupting the program when the value is greater than a predetermined first threshold value.Type: GrantFiled: December 15, 2014Date of Patent: November 19, 2019Assignee: Miele & Cie. KGInventors: Dirk Sieding, Helge Mueller, Bernd Merling, Rainer Bicker, Hartmut Linnemann, Karsten Henn, Jakob Wilken
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Patent number: 10214847Abstract: Provided is a drum washing machine, including: an outer tank, configured in a shell; a drum, configured in the outer tank and capable of rotating by using a horizontal shaft or an inclination shaft inclining relative to a horizontal direction as a center; a rotating body, configured at a rear part of the drum and having protruding parts in contact with washings on a surface of the rotating body; a driving part, capable of operating in a first drying form and a second driving form, wherein the first driving form refers to a driving form which enables the drum and the rotating body to rotate at different rotating speeds, and the second driving form refers to a driving form which enables the drum and the rotating body to rotate integrally at the same rotating speed; and a control part.Type: GrantFiled: August 28, 2015Date of Patent: February 26, 2019Assignees: Haier Asia Co., Ltd., Qingdao Haier Washing Machine Co., Ltd.Inventor: Shigeharu Nakamoto
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Patent number: 10145052Abstract: The present disclosure relates to a washing machine comprising: a cabinet; a tub which is accommodated in said cabinet, and accommodates wash water therein; a drum which is installed in said tub to be rotated, an accommodates the laundry; a sump which is equipped on the lower part of said tub such that the wash water is collected; a drain chamber which is connected to the lower part of a drain formed on a bottom surface of said sump, and in which the wash water drained from said drain is temporarily stored; a pump which circulates the wash water drained from said drain chamber; and a drain-side circulation flow path which forms a path in which the wash water circulates between said drain chamber and said pump.Type: GrantFiled: July 18, 2012Date of Patent: December 4, 2018Assignee: LG ELECTRONICS INC.Inventors: Kyeonghwan Kim, Rayoung Park
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Patent number: 10054911Abstract: A system and method for optimizing performance of an appliance. The method includes collecting user feedback and/or performance data related to an operating cycle of an appliance. This collected data is transmitted to a remote server which provides a recommendation, based on the user feedback and/or performance data, for improving the performance of the appliance during a subsequent operating cycle. In addition, feedback related to one appliance may be used to make operating adjustments to another appliance. In this manner, closed loop feedback can be used to improve and optimize the operation of one or more appliances.Type: GrantFiled: November 17, 2015Date of Patent: August 21, 2018Assignee: Haier US Appliance Solutions, Inc.Inventor: Ryan James Scheckelhoff
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Patent number: 9938653Abstract: A laundry treating appliance for treating a laundry load according to at least one cycle of operation including a rotatable drum at least partially defining a treating chamber in which a laundry load is received for treatment, a motor rotatably driving the drum in response to a motor control signal, and a controller outputting a motor control signal to rotate the drum according to a speed profile having at least a constant speed phase, where the drum is rotated at a constant speed, and an acceleration phase, where the drum is accelerated to the constant speed and a method of operating a laundry treating appliance to determine an inertia of the laundry load.Type: GrantFiled: July 9, 2015Date of Patent: April 10, 2018Assignee: Whirlpool CorporationInventors: Donald E. Erickson, Peter E. Zasowski
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Patent number: 9890492Abstract: An embodiment of a method of determining inertia of a laundry load may comprise an extraction stabilization phase, where liquid is extracted from the laundry load by rotating the basket at first rotational speed, and a sensing phase. The sensing phase may include a deceleration phase, where the basket speed decreases to a second rotational speed, followed by an acceleration phase, where the basket speed increases back toward the first rotational speed. The inertia of the laundry load may be determined from data sensed during the deceleration and acceleration phases.Type: GrantFiled: March 24, 2015Date of Patent: February 13, 2018Assignee: Whirlpool CorporationInventors: Rafael Cabral Melo, Fernando Elias De Oliveira, Bradley D. Morrow, Maurilio Fabio Rodriques Catharino, Yingqin Yuan
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Patent number: 9840805Abstract: Washing machine appliances and methods for determining load masses are provided. A method includes accelerating rotation of a basket of the washing machine appliance from a first speed to a second speed greater than the first speed and for a predetermined time measured for acceleration of the basket from the first speed; measuring, during the accelerating step, a check speed of the basket at the predetermined time; and measuring, during the accelerating step, an acceleration time for the tub to accelerate from the first speed to the second speed. The method further includes discontinuing acceleration of the basket after the second speed and the predetermined time have reached; and measuring a coast time for coasting of the basket from the check speed to the first speed. The method further includes determining a load mass in the basket based on the check speed, the acceleration time, and the coast time.Type: GrantFiled: June 17, 2015Date of Patent: December 12, 2017Assignee: Haier US Appliance Solutions, Inc.Inventors: Ryan Ellis Leonard, Stephen Edward Hettinger
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Patent number: 9816222Abstract: The present subject matter provides a method for detecting underfilling of a washing machine appliance. The method includes rotating an impeller of the washing machine appliance with a motor operating at a reduced power relative to a full power of the motor. The method also includes determining a maximum angular velocity of the impeller when the impeller is rotated at the reduced power and adding liquid to a tub of the washing machine appliance if the maximum angular velocity of the impeller when the impeller is rotated at the reduced power is less than a threshold angular velocity.Type: GrantFiled: September 29, 2015Date of Patent: November 14, 2017Assignee: Haier US Appliance Solutions, Inc.Inventor: Roberto Obregon
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Patent number: 9806654Abstract: Disclosed herein are a motor driving apparatus and a home appliance including the same. The motor driving apparatus includes a direct current (DC) link capacitor, an inverter, a DC link voltage detector, and a controller. The controller controls rheostatic braking to be performed in order to stop the motor, performs bootstrap operation of gate terminals of the upper arm switching elements of the inverter during a first period for starting the motor, and determines whether the motor stops during the first period based on the DC voltage detected by the DC link voltage detector or the output current detected by the output current detector. Accordingly, it is possible to conveniently determine whether the motor stops in the sensorless type motor driving apparatus.Type: GrantFiled: August 17, 2016Date of Patent: October 31, 2017Assignee: LG ELECTRONICS INC.Inventors: Hansu Jung, Hoyong Jang, Seokhee Cho
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Patent number: 9725842Abstract: Washing machine appliances and suspension assemblies for suspending tubs in washing machine appliances are provided. A suspension assembly includes a frame, a mount seated on the frame, and a rod coupled to the mount. The rod is rotatable about a pivot point. The suspension assembly further includes a sensor assembly operable to monitor rotation of the rod. The sensor assembly includes a sensor and a reference surface. One of the sensor or the reference surface is coupled to the rod and rotatable with the rod relative to the other of the sensor or the reference surface. The sensor is operable to measure reference distances from the reference surface.Type: GrantFiled: January 13, 2015Date of Patent: August 8, 2017Assignee: Haier US Appliance Solutions, Inc.Inventor: Paul Owen Davis
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Patent number: 9551103Abstract: A method of determining load type in a laundry treating appliance having a treating chamber for receiving laundry, a rotatable laundry mover, and a motor operably coupled to the rotatable laundry mover includes steps to apply a perturbation force to the laundry in the treating chamber by rotating the laundry mover with the motor; determine the response of the motor torque to the perturbation force during the rotating of the laundry mover; and determine a load type based on the determined response.Type: GrantFiled: August 13, 2013Date of Patent: January 24, 2017Assignee: Whirlpool CorporationInventors: David P. Goshgarian, Andrew J. Leitert, Karl David McAllister, Amy L. Rapson, Yingqin Yuan
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Patent number: 9518350Abstract: Devices and methods to adjust the operation of a washing machine based on system modeling include a motor, a control board, a heater, a number of sensors, and an electronic controller. The controller receives a selected wash cycle program and determines an operating condition of the selected wash cycle program, using data from the sensors. The motor may be used as a sensor. Based on the operating condition, the controller predicts an operational parameter of the washing machine using a system model. The controller may adjust the wash cycle program to keep the operational parameter in bounds or increase efficiency. The operational parameter may be temperature, electrical current consumption, wash efficiency, or energy consumption. The wash cycle program may be adjusted by modifying the duty cycle of the motor or the heater. The system model may be recalibrated upon use to adapt to the particular characteristics of the washing machine.Type: GrantFiled: January 8, 2013Date of Patent: December 13, 2016Assignee: Whirlpool CorporationInventors: Luiz Von Dokonal, Fernando A. Ribas Junior
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Patent number: 9447533Abstract: A laundry treating appliance has a rotatable drum at least partially defining a treating chamber for receiving a laundry load for treatment according to at least one cycle of operation and operated such that the extraction of liquid from the laundry load is controlled based on the inertia of the laundry load so that the total energy usage by the laundry treating appliance and a laundry drying appliance with which it is operably coupled may be minimized.Type: GrantFiled: August 28, 2014Date of Patent: September 20, 2016Assignee: Whirlpool CorporationInventors: Farhad Ashrafzadeh, Brian P. Janke, Peter E. Zasowski
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Patent number: 9328451Abstract: A method and apparatus for sensing the level of fluid present in a dispenser, such as a detergent or fabric softener dispenser, of a washing machine appliance and to detecting an out of balance condition for such appliance is provided. A pressure sensor is used to determine the level of fluid present and to provide indications of the same at various levels of use of the fluid. One or more pressure sensors can also be used to detect an out of balance condition when the appliance is a washing machine.Type: GrantFiled: March 11, 2015Date of Patent: May 3, 2016Assignee: General Electric CompanyInventors: Jerrod Aaron Kappler, Richard Dean Suel, II, Mark A. Didat, Alexander Boris Leibman
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Patent number: 9243987Abstract: A method of determining a fabric type for a laundry load can include comparing the density of the laundry load in a first wetted state, which may be a dry state or a partially saturated state, to the density of the laundry load in a second wetted state, which may be a partially saturated, fully saturated, or beyond fully saturated state, and determining a fabric type based on the comparison.Type: GrantFiled: May 1, 2013Date of Patent: January 26, 2016Assignee: Whirlpool CorporationInventors: Hirak Chanda, Kaustav Ghosh, Andrew J. Leitert, Karl David McAllister, Amy L. Rapson, Jon D. Strait, Yingqin Yuan
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Patent number: 9212445Abstract: Disclosed is a method of operating a horizontal axis laundry treating appliance to correct for an error in sensing an amount of supplied liquid caused by a determined change in the attitude of an associated wash tub.Type: GrantFiled: December 16, 2011Date of Patent: December 15, 2015Assignee: Whirlpool CorporationInventor: Donald E. Erickson
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Patent number: 9139946Abstract: In the In a washing machine (1) the type of the laundry placed in the drum (2) and the amount of laundry are estimated by detecting the laundry type information by the valve (4) opening pressure level (Pva1) and the valve (4) closing pressure level (Pvu1) in the water receiving step.Type: GrantFiled: December 23, 2010Date of Patent: September 22, 2015Assignee: Arcelik Anonim SirketiInventors: Omer Dogan, Burak Asureciler, Cemal Murat Dora, Eyyup Gokceimam, Ergun Kiran
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Patent number: 9080277Abstract: A laundry treating appliance for treating a laundry load according to at least one cycle of operation including a rotatable drum at least partially defining a treating chamber in which a laundry load is received for treatment, a motor rotatably driving the drum in response to a motor control signal, and a controller outputting a motor control signal to rotate the drum according to a speed profile having at least a constant speed phase, where the drum is rotated at a constant speed, and an acceleration phase, where the drum is accelerated to the constant speed and a method of operating a laundry treating appliance to determine an inertia of the laundry load.Type: GrantFiled: October 2, 2012Date of Patent: July 14, 2015Assignee: Whirlpool CorporationInventors: Donald E. Erickson, Peter E. Zasowski
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Publication number: 20150121630Abstract: A washing machine capable of performing washing by increasing a water level when an overload of a motor is detected, and a control method thereof. The washing is performed by detecting an overload of the motor using a load detecting circuit and changing a water level to a highest water level when the overload is detected. Thus, a burning smell may not be caused from the motor by preventing stalling of the motor, and washing performance may be maintained since the motor is continuously operated without stopping.Type: ApplicationFiled: June 10, 2014Publication date: May 7, 2015Inventors: Sung Mo LEE, Jun Hyun PARK, Seung Hun LEE, Jung Won CHOI
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Publication number: 20150121631Abstract: A washing machine and a control method thereof capable of accurately detecting the weight of laundry received in the washing machine by primarily detecting the weight of the laundry according to driving of a motor before the beginning of a washing process and correcting the primary detected weight of laundry according to the number of supplies of water which is additionally supplied within a given time after main water supply is completed during the washing process.Type: ApplicationFiled: July 31, 2014Publication date: May 7, 2015Applicant: Samsung Electronics Co., Ltd.Inventor: Sung Woon KANG
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Publication number: 20150113740Abstract: A washing machine that can determine a weight of laundry in consideration of the result of determination on whether the laundry is dry cloth or wet cloth, and a control method of the washing machine. Before washing starts, a drum rotates to measure a changed amount in water level, and it is determined whether laundry is dry cloth or wet cloth based on the changed amount in water level. If it is determined that the laundry is wet cloth, a weight of the laundry is accurately detected by using wet cloth weight criteria or by adding a weight according to the changed amount in water level, which leads to reducing water consumption, a washing time, and energy consumption while preventing laundry from being damaged.Type: ApplicationFiled: June 10, 2014Publication date: April 30, 2015Inventor: Jae Poong LEE
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Publication number: 20150101668Abstract: A laundry treating appliance having a tub, a drum located within the tub and at least partially defining a treating chamber in which laundry may be received for treatment according to an automatic cycle of operation and a liquid supply system for introducing liquid thereto and a method for filling the laundry treating appliance including supplying liquid, determining a load inertia value and stopping the supply of liquid based thereon.Type: ApplicationFiled: October 11, 2013Publication date: April 16, 2015Applicant: Whirlpool CorporationInventors: BRIAN P. JANKE, STEPHEN L. KERES
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Patent number: 8991221Abstract: The present description relates to a household appliance for treating soft goods, in particular a laundry washing or washing/drying machine of the electronically controlled type fitted with an electronic control system (17). The household appliance comprises an oscillating assembly connected to the frame by means of a suspension system comprising at least one damper (1). The damper (1) comprises two elements (3, 4) adapted to move reciprocally, at least one magnetic element, preferably a permanent magnet (9), and an electronic module (6) provided with at least one magnetic sensor, preferably a Hall element (12). The magnetic element (9) and the magnetic sensor (12) are housed in the damper (1) so as to detect the reciprocal motion of the two elements (3, 4).Type: GrantFiled: July 20, 2006Date of Patent: March 31, 2015Assignee: Indesit Company S.p.A.Inventors: Valerio Aisa, Paolo Santonicola, Giovanni Bombardieri, Costantino Mariotti, Federica Minni
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Publication number: 20150074918Abstract: The present subject matter provides a washing machine appliance and a method for operating a washing machine appliance. The method includes determining an average power delivered to a motor of the washing machine appliance while a basket is rotating at a first angular velocity, establishing a plurality of instantaneous powers delivered to the motor while the basket is accelerating from the first angular velocity, and calculating a load score of articles within a wash chamber of the basket based at least in part on the average power delivered to the motor and the plurality of instantaneous powers delivered to the motor. The load score can correspond to a mass of articles within the wash chamber of the basket.Type: ApplicationFiled: September 19, 2013Publication date: March 19, 2015Applicant: General Electric CompanyInventor: Richard Dean Suel, II
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Publication number: 20150052688Abstract: A washing machine appliance and a method for operating a washing machine appliance are provided. The method includes directing a volume of liquid into a chamber of a basket, spinning the basket within a tub, and establishing a load type of articles within the chamber of the basket. The established load type is confirmed or controverted based at least in part on a height of liquid on a wall of the tub while the basket is spinning within the tub.Type: ApplicationFiled: August 20, 2013Publication date: February 26, 2015Applicant: General Electric CompanyInventors: Roberto Obregon, Anthony William Simpson
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Patent number: 8955183Abstract: A laundry appliance having a perforated rotatable drum for spin dehydrating a wet textile load, an electric motor for providing an accelerating force which in use causes the drum to rotate, load sensors for detecting any static dynamic imbalance in the rotation of the drum, and a controller which receives inputs from the load sensors and is programmed to, in a spin-up phase, energize said electric motor so as to evenly distribute the load within the drum and thereby minimize any static or dynamic imbalance when the drum rotates.Type: GrantFiled: October 22, 2013Date of Patent: February 17, 2015Assignee: Fisher & Paykel Appliances LimitedInventor: David Charles Rhodes
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Publication number: 20150000350Abstract: A washing machine in which the structure of a laundry weight sensing apparatus to sense the weight of laundry within a tub is enhanced. The washing machine includes a cabinet, a tub, a support member provided with one end combined with the tub and the other end combined with the cabinet so as to support the tub to the cabinet, and a laundry weight sensing apparatus provided with one side combined with the support member to use load of the tub transmitted to the support member so as to sense the weight of laundry within the tub and the other side contacting one surface of the cabinet to prevent impact transmitted from the tub. The washing machine may precisely measure the weight of laundry without influence of surrounding environments and prevent an error generated due to transmission of vibration caused by operation of the tub.Type: ApplicationFiled: June 23, 2014Publication date: January 1, 2015Inventors: Jung Hee LEE, Jae Ho BAEK, Hyo Sang LEE, Ji Hoon CHOI, Kab Jin JUN, Jeong Su HAN
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Publication number: 20150000047Abstract: A washing machine appliance and a method for operating a washing machine appliance are provided. The method includes estimating a mass of articles within a wash chamber of a drum based at least in part on an inertia of the drum and articles within the wash chamber of the drum, gauging the mass of articles within the wash chamber of the drum based at least in part on a volume of water within a tub, and establishing a load type of articles within the wash chamber of the drum based at least in part on the mass of articles within the wash chamber of the drum from the step of estimating and the mass of articles within the wash chamber of the drum from the step of gauging.Type: ApplicationFiled: June 27, 2013Publication date: January 1, 2015Inventor: Roberto Obregon
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Patent number: 8918936Abstract: A method of sensing the motion of the wash assembly (3) of a washing machine (1) due to the dynamic unbalance of the laundry drum assembly (6), and which comprises the steps of: increasing the rotation speed (?) of a laundry drum (6) to a first rotation speed (?DIST); determining a first parameter (TFRICTION; AHFREF) related to the time pattern of the values of an unbalance function A=T?Jd?/dt; increasing the rotation speed (?) of the laundry drum (6) by a predetermined value (??) determining, at each increase (??) in rotation speed (?), a second parameter (ALF; AHF) related to the time pattern of the values of the unbalance function A=T?Jd?/dt filtered at the predetermined filtration frequency (LF; HF); calculating the difference (TdynLF; TdynHF) between the second parameter (ALF; AHF) and the first parameter (TFRICTION; AHFREF).Type: GrantFiled: October 10, 2008Date of Patent: December 30, 2014Assignee: Electrolux Home Products Corporation N.V.Inventors: Fabio Altinier, Terenzio Girotto, Marco Giovagnoni
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Patent number: 8914931Abstract: A laundry machine capable of washing or drying laundry and a method for controlling the same are provided. The method includes a first rotation including rotating a stationary drum in a first rotating direction by a predetermined angle within ˜180 degrees, and a second rotation including rotating the drum, in a direction opposite to the first rotating direction, at least one revolution.Type: GrantFiled: July 30, 2008Date of Patent: December 23, 2014Assignee: LG Electronics Inc.Inventor: Bon Kwon Koo
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Patent number: 8914930Abstract: A method and apparatus determines a load size of a laundry load located in a laundry treating appliance having a drum defining a treatment chamber that is rotated by a motor based on a given amount of energy applied to the motor, and a measurement of coast time after the given amount of energy is removed.Type: GrantFiled: April 12, 2011Date of Patent: December 23, 2014Assignee: Whirlpool CorporationInventors: Hirak Chanda, Michael L. Jackemeyer, Christoph J. Miller, James A. Oskins, Andre Petronilho, Robert A. Scheitlin, Jon D. Strait, Matthew S. Wasson
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Publication number: 20140204860Abstract: A reception (RX) node using mutual resonance includes a target resonator configured to receive power via mutual resonance with a source resonator; a controller configured to wake up in response to the received power, determine a point in time at which the controller woke up to be a point in time at which synchronization with other RX nodes is performed, and generate a data packet, and a sensor configured to wake up in response to the received power, sense information.Type: ApplicationFiled: January 15, 2014Publication date: July 24, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Zo Kim, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Bong Chul Kim, Yun Kwon Park, Jae Hyun Park, Keum Su Song, Chi Hyung Ahn, Young Ho Ryu, Chang Wook Yoon, Byoung Hee Lee
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Patent number: 8776553Abstract: A method and apparatus according to one embodiment for determining laundry load size in an automatic clothes washer includes supplying water to predetermined water levels higher than a saturate water level and determining the amount of water supplied to reach each predetermined water level from a prior water level, and determining a load size based on the determined amount of water supplied between the current predetermined water level and the prior water level.Type: GrantFiled: January 21, 2013Date of Patent: July 15, 2014Assignee: Whirlpool CorporationInventors: Jenn-Yeu Nieh, James A. Oskins
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Patent number: 8776552Abstract: A washing machine and a laundry amount detection device thereof. The washing machine includes a cabinet, a tub provided in the cabinet, an elastic member to elastically support the tub at the cabinet, and a laundry amount detection device to detect an amount of laundry placed in the tub using a deformation amount of the elastic member.Type: GrantFiled: October 13, 2010Date of Patent: July 15, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Jun Lee, Jeong Su Han, Hyen Young Choi, Ji Hoon Ha
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Publication number: 20140189959Abstract: Devices and methods to adjust the operation of a washing machine based on system modeling include a motor, a control board, a heater, a number of sensors, and an electronic controller. The controller receives a selected wash cycle program and determines an operating condition of the selected wash cycle program, using data from the sensors. The motor may be used as a sensor. Based on the operating condition, the controller predicts an operational parameter of the washing machine using a system model. The controller may adjust the wash cycle program to keep the operational parameter in bounds or increase efficiency. The operational parameter may be temperature, electrical current consumption, wash efficiency, or energy consumption. The wash cycle program may be adjusted by modifying the duty cycle of the motor or the heater. The system model may be recalibrated upon use to adapt to the particular characteristics of the washing machine.Type: ApplicationFiled: January 8, 2013Publication date: July 10, 2014Applicant: WHIRLPOOL CORPORATIONInventors: LUIZ VON DOKONAL, FERNANDO A. RIBAS JUNIOR
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Publication number: 20140182068Abstract: Methods and apparatus for operating a laundry treating appliance to indicate an amount of laundry in a treating chamber are disclosed. An example method includes as laundry is being placed in the treating chamber, illuminating the treating chamber with light, and as the laundry is being placed in the treating chamber, repeatedly adjusting at least one or a color and/or an intensity of the light based on an amount of laundry in the treating chamber.Type: ApplicationFiled: March 10, 2014Publication date: July 3, 2014Applicant: WHIRLPOOL CORPORATIONInventors: BARBARA A. BALINSKI, JASON L. BARR, ANDREW LEITERT, KARL DAVID MCALLISTER, JAMES A. OSKINS, MATTHEW J. QUOCK, JAMAL O. WILSON
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Patent number: 8756956Abstract: A laundry treatment device includes a housing, a container suspended in the housing in an oscillating manner, and a detecting unit for detecting one of the position and the arrangement of the container in the housing. The detecting unit includes a magnetic field-generator that generates a magnetic field; and a magnetic field detector for detecting a magnetic flux density of the magnet field and for determining a direction of field lines of the magnet field.Type: GrantFiled: March 13, 2007Date of Patent: June 24, 2014Assignee: BSH Bosch und Siemens Hausgerate GmbHInventors: Rainer Dudzik, Rainer Jurmann, Thomas Kaltofen, Martin Schaller
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Patent number: 8713976Abstract: A control system is provided for a washing machine including a cabinet, a wash tub positioned within the cabinet and a wash basket rotatably mounted within the wash tub. The control system includes a plurality of supports including two diagonally arranged supports. The plurality of supports are configured to support the washing machine on a surface. At least one load sensor is positioned with respect to each support of the two diagonally arranged supports. The at least one load sensor is configured to detect at least one force component applied to each support by a load within the wash basket. The at least one load sensor is further configured to generate a signal representative of the at least one force component. A controller is in signal communication with the at least one load sensor. The controller is configured to detect an operating load placement condition within the wash basket in response to at least one signal received from the at least one load sensor.Type: GrantFiled: December 29, 2006Date of Patent: May 6, 2014Assignee: General Electric CompanyInventors: Christopher G. Hoppe, Ziqiang Hu
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Publication number: 20140101865Abstract: Disclosed are a laundry treatment machine and a method of operating the same. The method of operating the laundry treatment machine that processes laundry via rotation of a wash tub includes accelerating a rotational velocity of the tub during an accelerated rotating section, rotating the tub at a constant velocity during a constant velocity rotating section, and determining an amount of laundry in the tub based on a first output current flowing through a motor that is used to rotate the tub during the accelerated rotating section and a second output current flowing through the motor during the constant velocity rotating section. This ensures efficient sensing of amount of laundry.Type: ApplicationFiled: October 8, 2013Publication date: April 17, 2014Applicant: LG ELECTRONICS INC.Inventors: Minho JANG, Kyunghoon KIM, Hoonbong LEE
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Publication number: 20140090181Abstract: A laundry treating appliance for treating a laundry load according to at least one cycle of operation and a method of operating a laundry treating appliance to control the rotation of the drum to distribute the laundry load with an acceptable amount of imbalance such that the laundry treating appliance may be operated in an effective and efficient manner.Type: ApplicationFiled: October 2, 2012Publication date: April 3, 2014Applicant: Whirlpool CorporationInventors: BRIAN P. JANKE, PETER J. RICHMOND, PETER E. ZASOWSKI
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Patent number: 8674242Abstract: A laundry weight sensing method. A motor is consecutively turned on and off plural times, the number of pulses output from a counter electromotive force detector according to counter electromotive force of the motor when the motor is finally turned off is counted, and a laundry weight is sensed using the counted number of pulses.Type: GrantFiled: January 7, 2011Date of Patent: March 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sung Hoon Kim, Sang Yeon Pyo, Jae Ryong Park, See Young Choi