EP2009169A2 - Waschmaschine - Google Patents

Waschmaschine Download PDF

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Publication number
EP2009169A2
EP2009169A2 EP08157755A EP08157755A EP2009169A2 EP 2009169 A2 EP2009169 A2 EP 2009169A2 EP 08157755 A EP08157755 A EP 08157755A EP 08157755 A EP08157755 A EP 08157755A EP 2009169 A2 EP2009169 A2 EP 2009169A2
Authority
EP
European Patent Office
Prior art keywords
rotation speed
drum
predetermined
motor
controller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08157755A
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English (en)
French (fr)
Other versions
EP2009169A3 (de
EP2009169B1 (de
Inventor
Hideharu Hiwaki
Hajime Nojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
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Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Priority to SI200831604A priority Critical patent/SI2009169T1/sl
Publication of EP2009169A2 publication Critical patent/EP2009169A2/de
Publication of EP2009169A3 publication Critical patent/EP2009169A3/de
Application granted granted Critical
Publication of EP2009169B1 publication Critical patent/EP2009169B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/10—Spin speed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting

Definitions

  • the present invention relates to a washing machine capable of detecting the amount of a laundry.
  • Fig. 8 is a sectional view of conventional washing machine 501.
  • Washing tub 2 is suspended and supported with an anti-vibration suspension in cabinet 1.
  • Drum 3 having bottom 3B and cylindrical side wall 3A is supported in washing tub 2.
  • Drum 3 rotates on rotation shaft 3F about central axis 3C inclined downward from the front side of washing machine 501 toward its back side.
  • Drum 3 has open end 3D opposite to bottom 3B along central axis 3.
  • Laundry loading port 4 communicating with open end 3D of drum 3 is provided in the front side of washing tub 2.
  • Opening 1A provided in an upward inclined surface at the front side of cabinet 1 is provided with door 5.
  • Door 5 is opened to allow the laundry to be loaded in drum 3 through laundry loading port 4.
  • Side wall 3A of drum 3 has a lot of through-holes 6 provided therein communicating with the inside of washing tub 2.
  • Inner circumferential surface 3E of side wall 3A is provided thereon with plural agitating projections 15 for agitating the laundry.
  • Drum 3 rotates in forward and reverse directions by motor 7 mounted at the back side of washing tub 2.
  • Feed pipe line 8 and drain pipe line 9 are connected to washing tub 2 to supply water to and discharge water from washing tub 2 by controlling a feed valve and drain valve.
  • washing machine 501 Upon opening door 5, a user inputs laundry and detergent into drum 3.
  • a predetermined amount of water is supplied into washing tub 2 through feed pipe line 8, and controller 501A controls and rotates motor 7, thereby starting a wash cycle during which drum 3 rotates to wash the laundry.
  • the rotation of drum 3 causes the laundry contained in drum 3 to be lifted in the rotating directions of drum 3 by agitating projections 15 provided on side wall 3A of drum 3.
  • the lifted laundry drops from an appropriate height and collides against side wall 3A, thus being agitated. This agitation with the collision is repeated to wash the laundry by a beat washing effect.
  • soiled washing liquid is discharged through drain pipe line 9.
  • a spin drying cycle is executed in which drum 3 rotates at a high speed to remove the washing liquid contained in the laundry.
  • a rinse cycle is executed in which water is supplied into washing tub 2 through feed pipe line 8 to rinse the laundry.
  • the agitating operation is repeated in which the laundry contained in drum 3 is lifted and drops by agitating projections 15 according to the rotation of drum 3.
  • air inside washing tub 2 is discharged to circulating duct 11, dehumidified, and heated to produce dry air.
  • the dry air is sent to the inside of washing tub 2 through circulating duct 11 by blowing fan 12 to dry the laundry in drum 3.
  • Rotation detector 14 such as a position sensor for sensing the position of the rotor of motor 7, is provided behind motor 7.
  • controller 501A detects the amount of the laundry put into drum 3 to automatically determine the conditions of the washing, such as the periods of the wash and rinse cycles, the amount of the water, and the rotation speed of motor 7, based on the detected amount of laundry.
  • controller 501A Upon starting the washing, controller 501A first starts motor 7, and rotation detector 14 inputs, to controller 501A, a signal having a frequency proportional to the rotation speed of motor 7. For example, in order to rotate motor 7 at a constant speed, controller 501A increases an average voltage applied to motor 7 by phase control when the frequency the signal from rotation detector 14 is low, and decreases the average voltage when the frequency is high.
  • FIG. 9 shows the rotation speed of motor 7 for controller 501A to detect the amount of the laundry.
  • Controller 501A gradually raises the average voltage applied to motor 7 to increase the rotation speed, accordingly attaching the laundry onto side wall 3A of drum 3 by a centrifugal force.
  • motor 7 is rotated at high constant rotation speed N501.
  • controller 501A stops energizing motor 7 at time point TP502. Upon stopping the energization, drum 3 rotates due to its inertia to cause motor 7 to rotate.
  • Rotation detector 14 sends, to controller 501A, a signal having a frequency proportional to the rotation speed shown in Fig. 9 .
  • period t503 of time from time point TP501 to the time point at which drum 3 (motor 7) containing a large amount of laundry stops is longer than period t502 of time from time point TP501 to the time point at which drum 3 (motor 7) containing a small amount of laundry stops.
  • the period from time point TP501 to the time point at which drum 3 (motor 7) stops is proportional to the amount of the laundry, thus allowing controller 501A to detect the amount of the laundry according to the period of time.
  • the angular acceleration ⁇ is determined by expression 3A as a function of angular velocity ⁇ and period t of time.
  • Period Ts of time (from time point TP502 to the time point at which motor 7 stops) is determined by expression 3B.
  • the rotation speed i.e., the angular velocity ⁇ changes according to the weight M if the average radius R is constant.
  • the torque T is zero in periods t502 and t503, and the friction torque Td and moment of inertia Jd are constant for each washing machine, expression 4 indicates that d ⁇ /dt, i.e., the change of the rotation speed, is determined by the weight M of the laundry.
  • controller 501A detects the weight M of the laundry based on the signal having the frequency proportional to the rotation speed of motor 7.
  • the relationship between the weight M of the laundry and the period from time point TP502 to the time point at which motor 7 stops is preliminarily determined by experiments executed for a finite number of washing machines, and the determined values are applied to all washing machines.
  • the friction torque Tb of rotation shaft 3F of one of the washing machines is different from those of another of the washing machines, thus causing variation.
  • expression 4 the relationship between the period Ts to the time point at which the drum stops and the weight M of each washing machine due to the variation of the friction torque Tb, accordingly preventing this method from detecting the amount of the laundry accurately.
  • a washing machine includes a drum arranged to contain a laundry and to rotate, a motor rotating the drum, a rotation speed detector detecting a rotation speed of the motor, and a controller controlling the motor according to the rotation speed detected by the rotation speed detector, the controller detecting an amount of the laundry.
  • the controller is operable to detect a first acceleration of the drum while allowing the motor to generate a predetermined accelerating torque to raise the rotation speed of the drum from a first predetermined rotation speed to a second predetermined rotation speed.
  • the controller is operable to detect a second acceleration of the drum while allowing the motor to generate a predetermined decelerating torque to decrease the rotation speed of the drum from a third predetermined third rotation speed to a fourth predetermined rotation speed.
  • the controller is operable to detect the amount of the laundry according to the first angular acceleration and the second angular acceleration.
  • the controller can detect the amount of the laundry accurately.
  • Fig. 1 is a sectional view of washing machine 1001 according to an exemplary embodiment of the present invention.
  • Washing tub 2 is suspended and supported with an anti-vibration suspension in cabinet 1.
  • Drum 3 having bottom 3B and cylindrical side wall 3A is supported in washing tub 2.
  • Drum 3 rotates with rotation shaft 3F about central axis 3C inclined downward from the front side of washing machine 1001 toward its back side.
  • Drum 3 has open end 3D opposite to bottom 3B along central axis 3.
  • Laundry loading port 4 communicating with open end 3D of drum 3 is provided in the front side of washing tub 2.
  • Opening 1A provided in an upward inclined surface at the front side of cabinet 1 is provided with door 5.
  • Door 5 is opened to allow the laundry to be loaded in drum 3 through laundry loading port 4.
  • Side wall 3A of drum 3 has a lot of through-holes 6 provided therein communicating with the inside of washing tub 2.
  • Inner circumferential surface 3E of side wall 3A is provided thereon with plural agitating projections 15 for agitating the laundry.
  • Drum 3 rotates in forward and reverse directions by motor 7 mounted at the back side of washing tub 2.
  • Feed pipe line 8 and drain pipe line 9 are connected to washing tub 2 to supply water to and discharge water from washing tub 2 by controlling a feed valve and drain valve.
  • washing machine 1001 An operation of washing machine 1001 will be described below.
  • a user Upon opening door 5, a user inputs laundry and detergent into drum 3.
  • a predetermined amount of water is supplied into washing tub 2 through feed pipe line 8, and controller 31 controls and rotates motor 7, thereby starting a wash cycle during which drum 3 rotates to wash the laundry.
  • the rotation of drum 3 causes the laundry contained in drum 3 to be lifted in the rotating directions of drum 3 by agitating projections 15 provided on side wall 3A of drum 3.
  • the lifted laundry drops from an appropriate height and collides against side wall 3A, thus being agitated. This agitation with the collision is repeated to wash the laundry by a beat washing effect.
  • soiled washing liquid is discharged through drain pipe line 9.
  • a spin drying cycle is executed in which drum 3 rotates at a high speed to remove the washing liquid contained in the laundry.
  • a rinse cycle is executed in which water is supplied into washing tub 2 through feed pipe line 8 to rinse the laundry.
  • the agitating operation is repeated in which the laundry contained in drum 3 is lifted and drops by agitating projections 15 according to the rotation of drum 3.
  • air inside washing tub 2 is discharged to circulating duct 11, dehumidified, and heated to produce dry air.
  • the dry air is sent to the inside of washing tub 2 through circulating duct 11 by blowing fan 12 to dry the laundry in drum 3.
  • Rotation detector 14 such as a position sensor for sensing the position of the rotor of motor 7, is provided behind motor 7.
  • controller 31 detects the amount of the laundry put into drum 3 to automatically determine the conditions of the washing, such as the periods of the wash and rinse cycles, the amount of the water, and the rotation speed of motor 7, based on the detected amount of laundry.
  • Fig. 2 is a circuit diagram of washing machine 1001.
  • An alternating-current voltage from commercial power supply 20 is rectified by rectifier 21 and smoothed by a smoothing circuit including choke coil 22 and smoothing capacitor 23 so as to generate a direct-current (DC) voltage.
  • the DC voltage rotates motor 7 via inverter circuit 24.
  • Controller 31 controls inverter circuit 24 via driving circuit 32 to control the rotation of motor 7.
  • Controller 31 controls feed valve 27, drain valve 28, blowing fan 12, and heater 29 via load driver 26 according to operation instructions input through input setting unit 25 and monitoring information on operations detected by sensors.
  • Motor 7 is a brushless DC motor and includes a stator including three-phase coils 7A, 7B, and 7C, a rotor including two-pole magnets, and position sensors 30A, 30B, and 30C for detecting the angular position of the rotor.
  • Inverter circuit 24 includes switching elements 24A to 24F and controls the rotation of motor 7 by a pulse-width modulation (PWM) method.
  • Position sensors 30A, 30B, and 30C input detection signals corresponding to the angular position of the rotor to controller 31 implemented by a computer. Each of the detection signals has a frequency changing according to the rotation speed of the rotor.
  • Controller 31 controls the turning on and off of switching elements 24A to 24F by the PWM method via driving circuit 32 according to the angular position of the rotor so as to control energization of three-phase coils 7A, 7B, and 7C of the stator, thereby rotating the rotor at a predetermined rotation speed.
  • Controller 31 includes rotation speed detector 33 has the detection signals from position sensors 30A, 30B, and 30C input thereto.
  • Rotation speed detector 33 detects the frequency of the detection signals from position sensors 30A, 30B, and 30C whenever any one of the signals changes so as to calculate the rotation speed of the rotor from the frequency.
  • Laundry amount detector 34 detects the amount of the laundry according to the detected rotation speed of the rotor.
  • the rotation speed of the rotor of motor 7 detected by rotation speed detector 33 corresponds to the rotation speed of drum 3, thus allowing controller 31 to detect the rotation speed of drum 3 from the rotation speed of the rotor detected by rotation speed detector 33.
  • Fig. 3 illustrates the rotation speed N of drum 3.
  • controller 31 Upon starting detecting the amount of the laundry, controller 31 allows motor 7 to generate start-up accelerating torque Ta to start up drum 3 from a stationary state, and raises the rotation speed N at a start-up angular acceleration ⁇ a(t) depending on time t. After rotation speed N changing at the start-up angular acceleration ⁇ a(t) reaches a predetermined rotation speed Na, controller 31 allows motor 7 to generate a predetermined accelerating torque T1 to raise the rotation speed N from a first predetermined rotation speed N1 to a second predetermined rotation speed N2 by a difference ⁇ N1 of the rotation speed during period t1. Then, at time point tb, controller 31 allows motor 7 to generate a predetermined decelerating torque T2 so as to decelerate drum 3.
  • the Decelerating torque T2 reduces the rotation speed N from a third predetermined rotation speed N3 to fourth predetermined rotation speed N4 by a difference ⁇ N2 of the rotation speed at second angular acceleration ⁇ 2 during period t2.
  • Controller 31 detects angular acceleration ⁇ 1 during the period t1 and angular acceleration ⁇ 2 by the following method.
  • the angular acceleration ⁇ 1 is defined as expression 5.
  • a ⁇ 1 ⁇ N ⁇ 1 / t ⁇ 1
  • the accelerating torque T1 is determined by the weight M of the laundry, the average radius R of the laundry distributed in drum 3, the moment of inertia Jd of drum 3 and motor 7, and the friction torque Tb of drum 3 and rotation shaft 3F from expressions 1 and 2, and is determined as expression 6.
  • T ⁇ 1 a ⁇ 1 ⁇ Jd + M ⁇ R 2 + Tb
  • ⁇ 2 ⁇ N ⁇ 2 / t ⁇ 2
  • T ⁇ 2 a ⁇ 2 ⁇ Jd + M ⁇ R 2 + Tb
  • Fig. 4 shows the relationship between the weight M of the laundry and the acceleration difference ( ⁇ 1- ⁇ 2).
  • Expression 9 shows that the difference ( ⁇ 1- ⁇ 2) changes according to the weight M of the laundry as shown in Fig. 4 if the average radius R of the laundry in drum 3, the accelerating torque T1, and the decelerating torque T2 are constant.
  • the accelerations ⁇ 1 and ⁇ 2 are easily calculated by measuring difference ⁇ N of the rotation speed of drum 3 and the periods t1 and t2 as shown by expressions 5 and 7.
  • Laundry amount detector 34 of controller 31 stores the relationship between the weight M of the laundry and the difference ( ⁇ 1- ⁇ 2) of the angular accelerations expressed by expression 9 and Fig. 4 as an operation table or an operation program, thereby easily detecting the weight M of the laundry accurately regardless of the friction torque Tb.
  • Controller 31 may store the relation ship between weight M of the laundry and moment M ⁇ R2 corresponding to weight M.
  • Fig. 5 is a flowchart illustrating an operation for washing machine 1001 to detecting the amount of the laundry.
  • controller 31 drives motor 7 to allow motor 7 to generate start-up torque Ta to rotate drum 3 (step S2), accelerates the drum 3 to have the angular acceleration of drum 3 reach ⁇ a(t) (step S3), and has the rotation speed N reach predetermined rotation speed Na (step S4).
  • controller 31 controls motor 7 to allow motor 7 to generate predetermined accelerating torque T1 to raise rotation speed N of drum 3 from first predetermined rotation speed N1 to second predetermined rotation speed N2 by difference ⁇ N1 (step S5).
  • controller 31 calculates period t1 for which rotation speed N rises by difference ⁇ N1 of the rotation speed (step S7).
  • controller 31 allows motor 7 to generate predetermined decelerating torque T2 to start decreasing rotation speed N of motor 7 at time point tb (step S8).
  • controller 31 calculates period t2 for which rotation speed N decreases by rotation speed difference ⁇ N2 (step S10).
  • the difference ( ⁇ 1- ⁇ 2) of the angular accelerations is determined by expressions 5 and 7 from rotation speed differences ⁇ N1 and ⁇ N2 and periods t1 and t2 (step S11).
  • the weight M of the laundry is determined based on expression 9 including coefficients which have been experimentally predetermined (step S12).
  • controller 31 controls motor 7 to rotate drum 3 preferably with constant accelerating torque T1 during period t1 and with constant decelerating torque T2 during period T2.
  • controller 31 may control the voltage applied to motor 7.
  • controller 31 allows torques T1 and T2 to be constant by a vector control method described below.
  • Fig. 6 is a block diagram of washing machine 1001 for illustrating the vector control method.
  • Signals corresponding to at least two phases of currents iu and iv out of three-phase currents flowing in motor 7 and to angular position ⁇ of the rotor of motor 7 is obtained by sensors, such as a Hall ICs.
  • controller 31 converts currents iu and iv in motor 7 to q-axis current Iq, i.e., a torque component, and d-axis current Id, i.e., a magnetic flux component.
  • Currents Iq and Id are orthogonal to each other. Then, currents Iq, Id are compared with desired currents Iq* and Id* so as to maintain currents Iq and Id constant.
  • Torque T of motor 7 is expressed by expression 10.
  • T P ⁇ ⁇ a ⁇ Iq + Ld + Lq ⁇ Iq ⁇ Id
  • P represents the number of pairs of poles of motor 7
  • ⁇ a represents the density of interlinkage magnetic flux produced by the magnets
  • Ld represents a d-axis inductance
  • Lq represents a q-axis inductance.
  • Expression 10 indicates that q-axis current Iq and d-axis current Id are controlled to controlling torque T of motor 7.
  • the product ⁇ a ⁇ Iq in expression 10 represents a torque of the magnet.
  • This torque is a main component of the torque generated by motor 7.
  • the torque of motor 7 can be substantively controlled by q-axis current Iq.
  • d-axis current Id is not zero, the change of inductances Ld and Lq due to the rotation causes torque T to fluctuates, or may produce an error of calculated torque T for calculating the amount of the laundry.
  • torque T may not be constant even if q-axis current Iq and d-axis current Id are controlled to be constant.
  • the q-axis current Iq is controlled to be constant while the d-axis current Id is controlled to be substantively zero for controlling the torque of motor 7 to be constant. This allows controller 31 to reduce an error in detecting the amount of the laundry.
  • start-up angular acceleration ⁇ a(t) at a certain time point ta in this start-up period is larger than first angular acceleration ⁇ 1, thereby rapidly accelerating drum 3.
  • start-up angular acceleration ⁇ a(t) is small, the laundry rotates about the axis near bottom 3B of drum 3, consequently being prevented from being attached onto side wall 3A of drum 3. If rotation speed N rises to rotation speed N1 in this situation, the laundry is unevenly distributed, and then, the elapsed time enters period t1. This prevents controller 3 from detecting the amount of the laundry accurately.
  • the start-up angular acceleration ⁇ a(ta) is larger than first angular acceleration ⁇ 1 at a certain time point ta in the start-up period not to change the relationship between laundry weight M and average radius R. This stabilizes the relationship between the weight M and moment of inertia M ⁇ R 2 , thereby allowing controller 31 to detect the weight M of the laundry accurately.
  • the laundry is attached onto drum 3 to be stabilized due to the large angular acceleration at startup, and additionally, the amount of the laundry is detected according to the angular accelerations at the rotation speed of drum 3 increases and decreases.
  • This operation cancels friction torque Tb generated mainly at rotation shaft 3F of drum 3, thus reducing the influence of the variation of friction torque Tb. Therefore, controller 31 can detect the weight M, the amount of the laundry, stably and accurately.
  • Controller 31 may stop the rotation of drum 3 according to the change of rotation speed N when raising rotation speed N of drum 3 for detecting the amount of the laundry (weight M).
  • Fig. 7A illustrates rotation speed N of drum 3 increasing with time.
  • the horizontal axis represents an elapsed time when rotation speed N of drum 3 is raised by a predetermined torque produced by driving motor 7.
  • the vertical axis represents rotation speed N of drum 3.
  • Rotation speed N may increase not uniformly with time, but repeating up-and-down changes. This results from the fact that washing tub 1001 vibrates due to the imbalanced laundry contained in drum 3. An excessively large vibration causes washing tub 2 to collide against cabinet 1, thereby making a noise.
  • Controller 31 detects the difference P between local maximum rotation speed Nmax and local minimum rotation speed Nmin within a predetermined range of the angular position of drum 3 during accelerating the rotation of drum 3. If the difference P exceeds a predetermined value, controller 31 controls motor 7 so as to stop the rotation of drum 3. According to the embodiment, controller 31 detects rotation speed N four times during one rotation of drum 3 to obtain four values, and determines the local maximum rotation speed and the local minimum rotation speeds out of the four values as local maximum rotation speed Nmax and local minimum rotation speed Nmin, respectively.
  • Fig. 7B illustrates the relationship between rotation speed N of drum 3 and the upper limit Pmax of the difference P.
  • Rotation speed N and the upper limit Pmax corresponding to rotation speed N are determined based on an allowable range of vibration determined experimentally, and are stored in controller 31 as a table.
  • controller 31 detects the rotation speed N and the difference P when raising rotation speed N of drum 3, and controls motor 7 so as to stop the rotation of drum 3 if the difference P exceeds the upper limit Pmax corresponding to rotation speed N. This operation prevents washing tub 2 from excessively vibrating and colliding against cabinet 1 due to the imbalanced laundry in drum 3, thereby stopping drum 3 safely.
  • drum 3 After drum 3 once stops, the user can rearrange the laundry in drum 3 and start up washing machine 1001 again.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP08157755.3A 2007-06-26 2008-06-06 Waschmaschine Not-in-force EP2009169B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200831604A SI2009169T1 (sl) 2007-06-26 2008-06-06 Pralni stroj

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007167142A JP4375447B2 (ja) 2007-06-26 2007-06-26 洗濯機

Publications (3)

Publication Number Publication Date
EP2009169A2 true EP2009169A2 (de) 2008-12-31
EP2009169A3 EP2009169A3 (de) 2014-12-24
EP2009169B1 EP2009169B1 (de) 2016-01-27

Family

ID=39789584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08157755.3A Not-in-force EP2009169B1 (de) 2007-06-26 2008-06-06 Waschmaschine

Country Status (5)

Country Link
EP (1) EP2009169B1 (de)
JP (1) JP4375447B2 (de)
CN (1) CN101333747B (de)
SI (1) SI2009169T1 (de)
TW (1) TWI361236B (de)

Cited By (9)

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DE102009001112A1 (de) * 2009-02-24 2010-08-26 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Überwachen einer Beladung einer Wäschetrommel und/oder eines Trocknungsgrades von Wäschestücken und entsprechende Schaltungsanordnung
DE102009001271A1 (de) * 2009-03-02 2010-09-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Ermitteln der Beladung und/oder der Unwucht einer Wäschetrommel einer Waschmaschine und entsprechende Schaltungsanordnung
ITPD20090174A1 (it) * 2009-06-17 2010-12-18 Grandimpianti Ile Ali S P A Procedimento per la pesatura di biancheria da lavare all'interno di una lavatrice, particolarmente per lavatrici industriali
DE102010063338A1 (de) * 2010-12-17 2012-06-21 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Steuern eines Schleuderablaufes und Wäschebehandlungsgerät
EP2985382A1 (de) 2014-08-14 2016-02-17 Alliance Laundry CE s.r.o. Verfahren zum automatischen Wiegen von Wäsche in einer Waschmaschine
US9512552B2 (en) 2014-09-15 2016-12-06 Alliance Laundry Ce S.R.O. Automatic weighing method of laundry in washing machine
EP3492648A1 (de) * 2017-12-01 2019-06-05 LG Electronics Inc. Trockner und verfahren zur steuerung davon
CN110552164A (zh) * 2018-06-04 2019-12-10 无锡小天鹅电器有限公司 偏心感知方法及偏心感知装置、存储介质、波轮洗衣机
US20210054554A1 (en) * 2018-06-14 2021-02-25 Guangdong Welling Motor Manufacturing Co., Ltd. Operation control method and system for clothing treatment device, clothing treatment device, and storage medium

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JP5287416B2 (ja) * 2009-03-27 2013-09-11 パナソニック株式会社 洗濯機
CN103911804B (zh) * 2013-01-07 2017-09-29 青岛海尔滚筒洗衣机有限公司 一种洗衣机脱水分布控制方法
JP6089318B2 (ja) * 2013-03-12 2017-03-08 パナソニックＩｐマネジメント株式会社 電動工具
KR101615979B1 (ko) * 2013-08-14 2016-04-28 엘지전자 주식회사 세탁물 처리기기 및 그 제어방법
CN105256508A (zh) * 2015-10-30 2016-01-20 珠海格力电器股份有限公司 洗衣机的称重方法和装置
KR102603457B1 (ko) * 2017-12-01 2023-11-17 엘지전자 주식회사 건조기 및 그 제어방법
KR102694108B1 (ko) * 2017-12-01 2024-08-13 엘지전자 주식회사 건조기 및 그 제어방법
CN108634911B (zh) * 2018-04-26 2019-11-19 安徽圣洁家居有限公司 基于离心力和惯性的鞋面雨水去除装置
CN108774849B (zh) * 2018-06-14 2021-03-16 广东威灵电机制造有限公司 衣物处理装置的运行控制方法、系统及存储介质
CN108755008B (zh) * 2018-06-14 2021-03-16 广东威灵电机制造有限公司 衣物处理装置的负载惯量检测方法、系统以及装置
CN109194237A (zh) * 2018-08-28 2019-01-11 苏州汇川技术有限公司 停靠控制方法、存储介质、系统、变频器及经编机系统
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CN110647058B (zh) * 2019-10-25 2021-07-13 珠海优特智厨科技有限公司 一种烹饪控制方法、装置、烹饪设备及存储介质
CN110703654B (zh) * 2019-10-25 2021-07-13 珠海优特智厨科技有限公司 一种烹饪控制方法、装置、烹饪设备及存储介质

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EP2009169B1 (de) 2016-01-27
CN101333747A (zh) 2008-12-31
JP2009005723A (ja) 2009-01-15
JP4375447B2 (ja) 2009-12-02
CN101333747B (zh) 2010-12-15
SI2009169T1 (sl) 2016-06-30
TWI361236B (en) 2012-04-01
TW200934911A (en) 2009-08-16

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