CN1199787A - Rotary-drum type washing machine - Google Patents
Rotary-drum type washing machine Download PDFInfo
- Publication number
- CN1199787A CN1199787A CN98108465A CN98108465A CN1199787A CN 1199787 A CN1199787 A CN 1199787A CN 98108465 A CN98108465 A CN 98108465A CN 98108465 A CN98108465 A CN 98108465A CN 1199787 A CN1199787 A CN 1199787A
- Authority
- CN
- China
- Prior art keywords
- load
- speed
- time
- rotating
- angular acceleration
- 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
Links
Images
Classifications
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
-
- 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
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
-
- 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
- D06F2105/02—Water supply
-
- 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
- D06F2105/56—Remaining operation time; Remaining operational cycles
-
- 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
- D06F2105/58—Indications or alarms to the control system or to the user
-
- 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
- D06F2105/58—Indications or alarms to the control system or to the user
- D06F2105/60—Audible signals
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Treatment Of Fiber Materials (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention provides a drum type washing machine which can exactly measure the amount of loads put into a rotary drum in a short time. Acceleration time &Delta t1 until the rotating speed of motor is accelerated from the 1st prescribed rotating speed 3000 rpm to the 2nd prescribed rotating speed of 4000 rpm is measured (steps 130-230), then, deceleration time &Delta t2 until the deceleration of rotating speed from the 2nd prescribed rotating speed of 4000 rpm to the 1st prescribed rotating speed of 3000 rpm is measured during deceleration in free run state interrupting electrification to the motor (steps 140-290), based on the measured acceleration time &Delta t1, deceleration time &Delta t2 and the difference of rotating speed, rotational angular acceleration at the time of acceleration and deceleration is calculated, based on this rotational angular acceleration, the inertia moment of laundry is calculated (step 330) and from this inertia moment, the quantity of laundry is calculated.
Description
The present invention relates to correctly to measure tumbling-box washing machine as putting into the load of swing roller washings amount.
In tumbling-box washing machine in the past, measure the moment of inertia when rotating the swing roller of putting into washings, utilize this moment of inertia and washings amount proportional, obtain the washings amount, i.e. the load of swing roller.
When in more detail, swing roller quickens and the equation of motion in the rotating coordinate system when slowing down use following formula (1), (2) to represent respectively.
(I
CS+I
B)dω/dt+kω
2＝T-T
L??????…(1)
(I
CS+I
B)dω/dt＝T
L+kω
2????????…(2)
Wherein, I
CSBe the moment of inertia of washings, I
BBe the moment of inertia of swing roller, ω is the angular velocity of rotation of swing roller, the air viscosity impedance factor when k is rotary drum rotating, and T is the driving torque of swing roller, T
LIt is the torque loss part.
Equation of motion during according to the acceleration shown in (1) formula, the moment of inertia I of washings
CSCan be changed into following formula.
I
CS＝(T-T
L-kω
2)/(dω/dt)-I
B????…(3)
If calculate the moment of inertia of washings, just can obtain the washings amount according to this moment of inertia so according to this formula.
As mentioned above, calculating the moment of inertia of washings, calculating according to this moment of inertia in the existing method of washings amount, at torque loss T according to formula (3)
LUnder the situation of change, also exist under the same washings amount, the rising of the rotating speed of swing roller changes, and the washings amount of obtaining when torque loss is big is bigger than actual amount, and the washings amount problem of smaller that torque loss hour is obtained.
Dead loss by transmission loss of bearing loss that adds and torque driving belt etc., and the loss that vibration caused that causes because of the biasing of washings constitutes torque loss, but the change of torque loss changes because of the element of time of described dead loss, the change that the dead loss during promptly owing to product export and the difference of the dead loss between the process operating period cause, the change of following tensile force of belt to change that causes with variations in temperature, and the difference of washings bias conditions and producing by the torque driving belt.Because this torque loss usually changes, so in method in the past, have the problem that is difficult to correctly obtain the washings amount.
In addition, under situations such as the situation that drops into the above load of tumbling-box washing machine regulation and the load equalization in the drench pit be abominable, need the time because drench pit is accelerated to predetermined rotary acceleration, thus in the washings quantitative determination also existence need the problem of time.
In view of the above problems, the object of the present invention is to provide a kind of tumbling-box washing machine that just can correctly be determined at the load that drops in the swing roller with the short time.
In order to achieve the above object, the main points of the present invention program 1 tumbling-box washing machine are to comprise: speed detector, the rotating speed of motor of the rotating speed of detection swing roller or driving swing roller; The first rotating angular acceleration calculation element according to the detected rotating speed of this speed detector, is calculated near first rotating angular acceleration the setting rotating speed in the acceleration of swing roller; The second rotating angular acceleration calculation element according to the rotating speed that detects with described speed detector, is calculated near second rotating angular acceleration the setting rotating speed in the free rotation state of the swing roller that cuts off described motor power supply slows down; With the load decision maker,, judge the load in the swing roller according to described first and second rotating angular accelerations.
As first scheme of the present invention, owing to calculate first rotating angular acceleration in the acceleration, calculate second rotating angular acceleration that cuts off in the free rotation state deceleration of motor power supply back simultaneously, according to the washings amount of this first and second rotating angular accelerations judgement as load, so be subjected to the influence of torque loss not resembling in the past, can correctly measure load.
In addition, the main points of the present invention program 2 tumbling-box washing machine are, in the present invention's first scheme, according to accelerate to the poor of acceleration time of second desired speed and described first and second desired speed with the rotating speed of described speed detector detection from first desired speed in motor quickens, the described first rotating angular acceleration calculation element is calculated described first rotating angular acceleration; According to be decelerated to the poor of deceleration time of first desired speed and described first and second desired speed with the rotating speed of described speed detector detection from second desired speed in the free rotation state that cuts off the motor power supply slows down, the described second rotating angular acceleration calculation element is calculated described second rotating angular acceleration.
As alternative plan of the present invention, accelerate to the poor of acceleration time of second desired speed and described first and second desired speed according to rotating speed from first desired speed, calculate first rotating angular acceleration; According to being decelerated to the poor of deceleration time of first desired speed and first and second desired speed from second desired speed, calculate second rotating angular acceleration at the free rotation state deceleration medium speed that cuts off the motor power supply.
Have again, the main points of the tumbling-box washing machine of third party's case of the present invention are, in the present invention's first scheme, from the rotation speed change and the described scheduled time that first desired speed changes in the given time, the described first rotating angular acceleration calculation element is calculated described first rotating angular acceleration according to the rotating speed that detects with described speed detector in the motor acceleration; From the rotation speed change and the described scheduled time that second desired speed changes in the given time, the described second rotating angular acceleration calculation element is calculated described second rotating angular acceleration according to the rotating speed that detects with described speed detector in the deceleration of the free rotation state that cuts off the motor power supply.
As third party's case of the present invention, from the rotation speed change and the described scheduled time that first desired speed changes in the given time, calculate described first rotating angular acceleration according to rotating speed; According at the deceleration medium speed of the free rotation state that cuts off the motor power supply from the rotation speed change and the described scheduled time that second desired speed changes in the given time, calculate described second rotating angular acceleration.
The main points of the tumbling-box washing machine of the cubic case of the present invention are, in the present invention second or third party's case, is furnished with warning device, in the deceleration of the free rotation state that cuts off described motor power supply, the rotating speed that detects with described speed detector is not decelerated under the situation of described first desired speed at the appointed time from described second desired speed, gives a warning.
As the cubic case of the present invention, because in the deceleration of the free rotation state that cuts off described motor power supply, rotating speed is not decelerated under the situation of described first desired speed at the appointed time from described second desired speed, gives a warning, and can know whether the washings of input is too much.
In addition, the main points of the tumbling-box washing machine of the present invention's the 5th scheme are, in the present invention second or third party's case, is furnished with warning device, in described motor quickens, the rotating speed that detects with described speed detector does not accelerate in official hour under the situation of described second desired speed from described first desired speed, gives a warning.
As the present invention's the 5th scheme, because in described motor quickened, rotating speed did not accelerate in official hour under the situation of described second desired speed from described first desired speed, gives a warning, and can know whether the washings of input is too much.
Have again, the main points of the tumbling-box washing machine of the present invention's the 6th scheme are, in the present invention's first scheme, is furnished with the feedwater starting apparatus, because described load decision maker carries out the judgement of load before the washing beginning, carry out the determination processing end of load at this load decision maker after, before stopping, the rotation of swing roller begins to supply water to swivelling chute.
As the present invention's the 6th scheme, owing to carry out the judgement of load before the washing beginning, after this load determination processing finished, beginning was supplied water to swivelling chute before the rotation of swing roller stops, so can shorten the time before the washing beginning.
The main points of the tumbling-box washing machine of the present invention's the 7th scheme are, in the present invention's first scheme, are furnished with the feedwater starting apparatus,, begin swivelling chute is supplied water in the load of judging with above-mentioned load decision maker under the situation below the predetermined value.
As the present invention's the 7th scheme since in the load of judging with the load decision maker under the situation below the predetermined value, begin swivelling chute is supplied water, so can carry out appropriate washing.
In addition, the main points of the tumbling-box washing machine of the present invention all directions case are, in the present invention's first scheme, is furnished with the deceleration regime setting device, after the described first rotating angular acceleration calculation element is calculated described first rotating angular acceleration, cut off power supply immediately, swing roller is set at the deceleration regime of free rotation state described motor.
As the present invention all directions case,, swing roller is set at the deceleration regime of free rotation state, so can shorten the load determination processing time owing to after calculating described first rotating angular acceleration, cut off power supply immediately to described motor.
Have again, the main points of the tumbling-box washing machine of the present invention's the 9th scheme are, in the present invention's first scheme, is furnished with brake apparatus, in the deceleration regime of the free rotation state of the swing roller that cuts off described motor power supply, be lower than at the rotating speed that detects with described speed detector regulation rotating speed situation or through under the situation of the scheduled time, force to stop the rotation of described motor.
As the present invention's the 9th scheme, because in the deceleration regime of the free rotation state that cuts off the swing roller that described motor is powered, be lower than at rotating speed under the situation of rotating speed of regulation or, force to stop the rotation of described motor, so can shorten wash time through under the situation of the scheduled time.
The main points of the tumbling-box washing machine of the present invention's the tenth scheme are to comprise: the first load decision maker, before the washing beginning, judge the load in the swing roller; The second load decision maker is judged the load in the swing roller after the process scheduled time in the dehydration stroke; Moisture is calculated device, according to two load of judging with the described first and second load decision makers, calculates the moisture of washings; With prediction unit drying time,, predict drying time according to the moisture that detects with this moisture checkout gear.
As the present invention's the tenth scheme, because according to the load through judging after the scheduled time in load of before the washing beginning, judging and the dehydration stroke, calculate the moisture of washings, predict drying time, so can know the dry concluding time clearly according to this moisture.
In addition, the main points of the tumbling-box washing machine of the present invention's the 11 scheme are to comprise: the first load decision maker, before the washing beginning, judge the load in the swing roller; The second load decision maker is judged the load in the swing roller in the dehydration stroke; With the dewatering time change device, according to two load of judging with the described first and second load decision makers, the change dewatering time.
As the present invention's the 11 scheme, because according to the load change dewatering time of judging in load of judging before washing begins and the dehydration stroke, so be not subjected to the cloth matter of washings and the influence of water temperature, the dewatering time of the enough the bests of energy dewaters equably.
Have, the main points of the tumbling-box washing machine of the present invention's the 12 scheme are in the present invention's the 11 scheme, to be furnished with again: repeat control device, control the described second load decision maker, so that judge the load in the swing roller repeatedly in the dehydration stroke; With the dewatering time control device, the control dewatering time is so that by this control that repeats control device, the load according to the described second load decision maker is judged repeatedly makes dehydration rate reach predetermined value.
As the present invention's the 12 scheme, owing in the dehydration stroke, judge the load in the swing roller repeatedly, according to this load of judging repeatedly, the control dewatering time, make dehydration rate reach predetermined value, so be not subjected to the cloth matter of washings and the influence of water temperature, the dewatering time of the enough the bests of energy dewaters equably.
The main points of the tumbling-box washing machine of the present invention's the 13 scheme are in the present invention's the 12 scheme, to be furnished with: the dehydration rate setting device, set the dehydration rate of expecting; With the dewatering time regulator, by the control of described repetition control device,, adjust dewatering time according to the load that the described second load decision maker is judged repeatedly, make dehydration rate reach the expectation dehydration rate of setting with described dehydration rate setting device.
As the present invention's the 13 scheme, owing to set the dehydration rate of expectation, adjust dewatering time according to the load that the load decision maker is judged repeatedly, reach the expectation dehydration rate of this setting, so can reach the dewatering state that the user requires.
Fig. 1 is the block diagram of the rotary drum washing machine control part parallel circuit structure of expression one embodiment of the invention.
Fig. 2 is the curve map of expression moment of inertia and washings load relation.
Fig. 3 is the flow chart of expression tumbling-box washing machine effect shown in Figure 1.
Fig. 4 is used for illustrating the rotating speed of computational methods of the rotating angular acceleration in the deceleration regime of rotating angular acceleration that motor quickens and the free rotation state that is cutting off the motor power supply and the corresponding relation curve map of time.
Angular acceleration change when Fig. 5 is the expression over capacity and the curve map of measuring timing.
Fig. 6 is that the expression load judges that the time of stroke shortens the curve map of example.
Fig. 7 is that the expression load judges that another time of stroke shortens the curve map of example.
Fig. 8 is the figure of load determination processing in the expression dehydration stroke.
Fig. 9 is the process chart that dry predicted time is calculated in expression.
Figure 10 is used for illustrating the rotating speed of other calculation methods of rotating angular acceleration in the deceleration regime of motor rotating angular acceleration that quickens and the free rotation state that cuts off the motor power supply and the corresponding relation curve map of time.
Below, use the description of drawings embodiments of the invention.
Fig. 1 is the block diagram of control section circuit structure of the tumbling-box washing machine of expression one embodiment of the invention.Control section shown in the figure is furnished with: control circuit 1, the action that control is whole; Motor 3 drives swing roller; Drive circuit 5 according to the control of control circuit 1, drives this motor 3; Hall IC 7 (Hall IC), the rotating speed of detection motor 3 offers control circuit 1 to the rotating speed of this detection; Water-supply valve 9, control is to the water supply of sink; Drive circuit 11 according to the control of control circuit 1, drives this water-supply valve 9; Draining valve 13, the draining of control washing trough inner water; Drive circuit 15 according to the control of control circuit 1, drives this draining valve 13; Level sensor 17 detects the water level in the sink; Display 19 comprises the various demonstrations that alarm shows; With all kinds of switches 21, comprise power switch, starting switch etc.
In the tumbling-box washing machine of present embodiment, influence for fear of torque loss in the existing method of measuring above-mentioned washings amount, if the rotating angular acceleration d ω/dt the when rotating speed of swing roller rises in the above-mentioned formula (1), (2) is (s of d ω/dt), rotating angular acceleration d ω/dt during deceleration is the (e of d ω/dt), the angular velocity of rotation ω that obtains these two rotating angular accelerations about equally, so from the moment of inertia I of the washings of formula (1), (2)
CLBy
Obtain, can eliminate the conduct torque loss T of error key element in the past thus
L
That is to say, if ((=(d ω/dt) e) is owing to the moment of inertia I that can correctly calculate washings according to formula (4) for=(d ω/dt) s) and the rotating angular acceleration S2 when slowing down for the rotating angular acceleration S1 the when motor of obtaining swing roller or driving this swing roller rises
CLSo, according to this moment of inertia I
CL, detect characteristic with reference to load shown in Figure 2, can obtain washings amount as load.
Below, with reference to flow chart shown in Figure 3, the effect of the embodiment of key diagram 1.
From dropping into washings, if operate in the starting switch that comprises in the described all kinds of switches 21 that are provided with on the main body, according to flow process shown in Figure 3, detecting the feedwater previous crops is the load of washings amount, washs, cleans and the stroke that dewaters according to the washings amount of this detection so.
Judge in the stroke in load shown in Figure 3, at first acceleration time decision sign F1 and decision deceleration time sign F2 are initialized to 0 (step 110), in addition, check whether the motor rotation status sign fm of expression motor rotation status is 0 (step 120).Have, motor rotation status sign fm is set at ' 0 ' in motor quickens, be set at ' 1 ' in deceleration again.
Now, if motor is in the acceleration, because motor rotation status sign fm is 0, thus enter step 130, being set at ω 1 and ω 2 respectively as the 3000rpm and the 4000rpm that detect rotating speed.
Have, Fig. 4 represents the rotating speed of motor with respect to the time again, but described detection rotating speed 3000rpm in quickening and 4000rpm represent with ω 1 and ω 2 in the rotating speed rising in Fig. 4.
Subsequently, read in rotating speed of motor NN (step 150), check whether this rotational speed N N equals described detection rotational speed omega 1 (3000rpm) (step 160).Reach under the situation that detects rotational speed omega 1 (3000rpm) at rotating speed of motor NN, begin instrumentation (step 170) from this rotational speed omega 1 to the time that reaches ω 2.Then, read in rotating speed of motor NN (step 180) once more, check whether this rotational speed N N equals described detection rotational speed omega 2 (step 190).Equal to detect under the situation of rotational speed omega 2 at motor speed NN, the instrumentation of concluding time is calculated motor speed NN reaches ω 2 from ω 1 acceleration time Δ t1 (step 200) thus.
Then, check whether motor rotation status sign fm is 0, checks promptly whether motor is in (step 210) in the acceleration.Because present processing is in the acceleration, thus enter step 230, described instrumentation time Δ t1 as acceleration time T1.And, described acceleration time decision sign F1 is set at 1, expression has determined the acceleration time (step 240).
Decision acceleration time T1 if acceleration time decision sign F1 is set at 1, checks so whether this acceleration time decision sign F1 and described deceleration time of decision sign F2 are 1 (step 250) simultaneously.Now, because decision deceleration time sign F2 also is not 1, so enter step 260, by motor rotation status sign fm is set at 1, enter speed-down action, stop power supply to motor, make swing roller be in free rotation state, return step 120 (step 270).Its result, motor reduces speed now, and its rotating speed begins to reduce as shown in Figure 4.
In the state that rotating speed begins to reduce, in step 120, check whether motor rotation status sign fm is 0.Because motor is in the deceleration, this sign fm is 1, thus enter step 140, being set at ω 1 and ω 2 respectively as the 4000rpm and the 3000rpm that detect rotating speed.
Subsequently, read in rotating speed of motor NN (step 150), check whether the rotational speed N N in slowing down equals to detect rotational speed omega 1 (4000rpm) (step 160).Reach under the situation that detects rotational speed omega 1 (4000rpm) at rotating speed of motor NN, begin from this rotational speed omega 1 (4000rpm) to the time instrumentation (step 170) that reaches ω 2 (3000rpm).Read in rotating speed of motor NN (step 180) once more, check whether this rotational speed N N equals described detection rotational speed omega 2 (step 190).Equal to detect under the situation of rotational speed omega 2 at motor speed NN, the concluding time instrumentation, calculate thus the rotational speed N N of motor when slowing down from ω 1 (4000rpm) to Δ t2 deceleration time (step 200) that reaches ω 2 (3000rpm).
Subsequently, check whether motor rotation status sign fm is 0 (step 210).Owing to be in the deceleration, and be 1, thus enter step 280, the time Δ t2 of described instrumentation as T2 deceleration time.And, described decision deceleration time sign F2 is set at 1, expression has determined deceleration time (step 290).
Decision T2 deceleration time if decision deceleration time sign F2 is set at 1, checks so whether described acceleration time decision sign F1 and decision deceleration time sign F2 are not 1 (step 250).Because acceleration time decision sign F1 and decision deceleration time sign F2 are 1 simultaneously, so enter step 330, according to following formula (4), calculate moment of inertia I
CL(step 330).
That is to say, as mentioned above with shown in Figure 4, rise to the acceleration time Δ t1 of ω 2 (4000rpm) and the poor Δ ω of this rotating speed (=ω 1-ω 2) according to motor speed when motor quickens from ω 1 (3000rpm), calculate the first rotating angular acceleration S1 of motor when quickening (=(d ω/dt) s), in addition, drop to the Δ t2 and the poor Δ ω (ω 1-ω 2) of this rotating speed deceleration time of ω 2 (3000rpm) from ω 1 (4000rpm) according to motor speed when motor slows down, calculate the second rotating angular acceleration S2 of motor when slowing down (=(d ω/dt) e), use these first rotating angular accelerations S1 (=(the d ω/dt) s) and the second rotating angular acceleration S2 (=(d ω/dt) e) then, calculating of through type (4) calculated the moment of inertia I of washings
CL
If calculate the moment of inertia I of washings
CL, detect characteristic according to load shown in Figure 2 so, can obtain washings amount by this moment of inertia, thereby carry out weight grading (step 340) according to the washings amount that this is obtained as load, washing, clean and the dehydration stroke.
In above-mentioned processing, in rotating speed of motor rises, this rotating speed rise to from ω 1 (3000rpm) time Δ t1 that ω 2 (4000rpm) spent than the long situation of predefined scheduled time Δ ts under, just judge that the washings amount that drops into is too much, the stop the rotation rotation of cylinder, on the display 19 of body of the washing machine control panel, warn demonstration, report to the police with buzzer simultaneously.In addition, in the deceleration of swing roller or motor, rotating speed drop to from ω 1 (4000rpm) time Δ t2 that ω 2 (3000rpm) spent than the long situation of predefined scheduled time Δ te under, just judge that the washings amount that drops into is too much, the stop the rotation rotation of cylinder, on the display 19 of body of the washing machine control panel, warn demonstration, simultaneously with buzzer report to the police (with reference to Fig. 5).
In addition, in above-mentioned processing, in the acceleration of motor, as shown in Figure 6, when the rotating speed of swing roller reaches ω 2, stop power supply,, can shorten the load determination processing time by moving to the retarding travel shown in solid line to drive motors.
Have again, after the stroke of obtaining the washings amount finishes, specifically, when rotating speed drops to 3000rpm when motor slows down, make water-supply valve 9 actions, beginning is directly supplied water to the swivelling chute of washing machine, as shown in Figure 7, also can be by making the brake action, cylinder stops the rotation, after feedwater finishes when reaching predetermined water level, move to washing stroke.Have again, though not shown in the drawings in the present embodiment, by the electrical short circuit winding, the electromagnetic brake circuit that produces braking action is set in motor.And, in the speed-down action of motor, below rotating speed becomes 3000rpm in, make electromagnetic brake action, stop the rotation of motor rapidly, can shorten the load determination processing time thus.Brake gear is not limited to electromagnetic brake, also can be mechanical brake.In addition, be not only when brake works rotating speed is worked, and can enter retarding travel through working after the scheduled time.
Have again, in an embodiment, owing to can begin feedwater before the rotation of swivelling chute stops when motor slows down, thus can foreshorten to the time of washing beginning, thus the actuation time of washing machine integral body can be shortened.
In the above-described embodiments, wash, clean stroke, from entering the dehydration stroke after the process scheduled time, detect the washings amount once more, thus, load judges that instrumentation during the stroke comprises the washings amount of moisture in the dehydration stroke when dehydration shown in Figure 8, by relatively this washings amount and the washings amount that does not comprise the drying regime of moisture before the above-mentioned washing, the amount of moisture that comprises in the washings can be calculated, thus, the dehydration rate of washings can be obtained.That is to say,, can detect the moisture of washings, in other words, can detect dehydration rate by in the dehydration stroke, carrying out the load determination processing.Usually, dewatering time is set at 10 minutes, makes dehydration rate roughly reach 55%.But dehydration rate is discrete in practice bigger because of the kind, quantity, water temperature etc. of load.
In the present embodiment, after the scheduled time after the dehydration beginning, for example carry out load after 3 minutes and judge stroke.The load that detects this moment is the total of the amount of moisture that comprises in cloth amount and the cloth.Therefore, according to the load of judging before this load and the washing, can calculate this dehydrating amount constantly.
Below shown in table 1 to be illustrated in advance that the dehydration of obtaining in the experiment begins the dehydration rate after 3 minutes and reach dehydration rate be 55% the dehydration relation of remaining time, according to this relation, can determine remaining dewatering time.
[table 1]
| The dehydration rate of dewatering and calculating after 3 minutes | Dewater remaining time |
| Below 48% | 8 minutes |
| From 48 to 52% | 5 minutes |
| From 52 to 55% | 2 minutes |
| More than 55% | 0 |
For example, the cloth amount is 3kg, if the result of determination after 3 minutes is 6.3kg, it is 48% that dehydration rate is calculated, and according to table 1, just is set at 8 minutes remaining time dewatering.In addition, the cloth amount is 3kg, if the result of determination after 3 minutes is 5.8kg, it is 51.5% that dehydration rate is calculated, and considers it is the chemical fiber fabric of easy dehydration, and the dewatering time of this situation is shorter better, and according to table 1, dewatering just is set at 5 minutes remaining time.Judge that by the load in such dehydration the change dewatering time can carry out optimal dehydration by cloth.Have again, be not limited to the data shown in the table 1, also can adopt the comparable data of more sectionalization.
Have, in the present embodiment, according to the data of above-mentioned table 1, the load during according to dehydration is not judged, judging under the situation of dehydration rate less than foot-eye 55%, can also prolong the scheduled time, such as the dewatering time that prolongs 1 minute again.And, carry out the prolongation of load judgement and dewatering time subsequently repeatedly, judge so that carry out load once more, finish dehydration.Judge by the load in this dehydration, can automatically control dewatering time, can not be subjected to the influence of cloth matter and water temperature etc. thus, dewater uniformly with best dewatering time.In addition, utilize this structure, also needn't prepare more comparable data.
In addition, in the present embodiment, be provided with and do not think the powerful dehydration situation, wish weak dehydration procedure that powerful dehydration situation etc. is corresponding and strong dehydration procedure etc. on the contrary, in weak dehydration procedure, dehydration rate for example is set at 50%, in strong dehydration procedure, dehydration rate for example is set at 60%, according to the judgement of load, variable control dewatering time reaches and the corresponding predetermined dehydration rate of selecting of dehydration procedure, thus, can suppress the discrete of dehydration rate.
The user has, in the present embodiment, the device that can set dehydration rate arranged, so that can at random set the dehydration rate corresponding with cloth in operation part.And the control dewatering time utilizes this dehydration rate setting device to reach the dehydration rate of setting, thereby reaches the dewatering state of user's expectation.
In the present embodiment, under the situation of the tumbling-box washing machine that functions/drying is arranged, when the dehydration stroke finishes, by carrying out above-mentioned load determination processing, owing to know washings amount and the amount of moisture that is dried, so can predict drying time thus, can show the drying time or the running concluding time of this prediction.
Should handle with reference to flowchart text shown in Figure 9.In Fig. 9, the judgement stroke of at first loading before aforesaid washing begins is set its result of determination for the load L1 (step 510,520) that washs preceding drying regime.Subsequently, carry out washing stroke, clean stroke (step 530,540), stroke (step 550) begins to dewater.In the dehydration stroke, motor continues scheduled time dehydration rotation (step 560), then, motor is slowed down, and simultaneously motor rotation status sign fm is set for 1 (step 570).And, in this state, load and judge stroke (step 580), this result of determination is set at load L2 (step 590).By from this load L2, deducting described load L1, calculate the moisture (step 600) that comprises in the washings.According to this moisture, set dry predicted time (step 610), show aforesaid should the drying predicted time, carry out dried, through finishing dehydration (step 620) behind this drying predicted time.
In addition, selecting from washing to the situation of cleaning, dehydration, drying program, because drying capacity is washing capacity half, so under situation about being judged to be by the load determination processing more than the dry heap(ed) capacity, owing to must take out the washings of overage, so the feedwater after the determination processing of not loading.Under drying capacity is judged to be situation below the dry heap(ed) capacity, after the load determination processing, begin feedwater before can stopping in the rotation of swivelling chute.
In the above-described embodiments, rise to the time Δ t1 of 4000rpm and drop to the time Δ t2 of 3000rpm from 4000rpm from 3000rpm according to rotating speed of motor, when carrying out quickening in step 130～280 of Fig. 3 and the rotating angular acceleration in when deceleration calculate, but replace it, also can obtain rotating angular acceleration as shown in Figure 10 according to the variation of angular speed in predetermined timing.
That is to say, as shown in figure 10, in rotating speed of motor rises, if motor speed reaches the rotational speed omega (3000rpm) of setting, with regard to the time started instrumentation, the rotational speed omega 1 behind the predetermined setting-up time Δ t of instrumentation is calculated change in rotational speed Δ ω s (=ω 1-ω) during this setting-up time Δ t.Subsequently, motor is shifted to retarding travel, if rotating speed reaches ω 1, just carries out the time instrumentation once more, measures the rotational speed omega 2 behind the predetermined setting-up time Δ t, calculates change in rotational speed Δ ω e (=ω 1-ω 2) during this setting-up time Δ t.And angular velocity varies Δ ω s and angular velocity varies Δ ω e when slowing down during according to the acceleration of calculating like this calculate when quickening and the rotating angular acceleration when slowing down, and its substitution formula (4), obtain the moment of inertia I of washings
CL,, can obtain load from this moment of inertia by Fig. 2 according to this moment of inertia.
Have, the rotating speed of calculating in the above-described embodiments is not limited to rotating speed of motor again, also can be by the rotating speed of motor-driven swing roller etc., mainly is by motor-driven, if just better with the proportional relation of rotating speed of motor.
As described above, according to the present invention, owing to calculate first rotating angular acceleration in the acceleration, calculate second rotating angular acceleration in the deceleration of cutting off the free rotation state after motor is powered simultaneously, according to this first and second rotating angular acceleration, judge washings amount, so the influence of torque suspension loss change not resembling in the past as load, can correctly measure load, i.e. the washings amount.
In addition, according to the present invention, because in the deceleration of the free rotation state that cuts off the motor power supply, rotating speed is not decelerated in official hour from second desired speed under the situation of first desired speed, can give a warning, during this external motor quickens, rotating speed does not accelerate under the situation of second desired speed in official hour from first desired speed, also can give a warning,, can carry out appropriate washing so can know that the washings of input is too much.
Have again, according to the present invention, owing to before the washing beginning, carry out the judgement of load, after the determination processing of load finishes, beginning is supplied water to swivelling chute before the rotation of swing roller stops, so can foreshorten to the time of washing beginning, its result can shorten whole wash time.
According to the present invention, owing under the situation below the predetermined value, begin swivelling chute is supplied water in the load of judging, so can carry out suitable washing.
In addition,,, swing roller is set at the deceleration regime of free rotation state,, can shortens whole wash time so shortened the determination processing time of load owing to after calculating first rotating angular acceleration, directly cut off power supply to motor according to the present invention.
Have again, according to the present invention, in the deceleration regime of the free rotation state that cuts off the swing roller that motor is powered, be lower than at rotating speed below the rotating speed of regulation situation or through under the situation of the scheduled time, owing to force to stop the rotation of motor, so can shorten wash time, thereby can shorten whole wash time.
According to the present invention, owing to, calculate the moisture of washings, predict drying time, so can know the dry concluding time clearly according to this moisture according to the load through judging after the scheduled time in preceding load of judging of washing beginning and the dehydration stroke.
In addition, according to the present invention, owing to change dewatering time according to the load of washing the preceding load of judging of beginning and judge in the dehydration stroke, so be not subjected to the influence of washings cloth matter and water temperature, the dewatering time of the enough the bests of energy dewaters equably.
Have again, according to the present invention, owing in the dehydration stroke, judge the load in the swing roller repeatedly, the control dewatering time, according to this load of judging repeatedly, make dehydration rate reach predetermined value, so be not subjected to the influence of washings cloth matter and water temperature, the dewatering time of the enough the bests of energy dewaters equably.
According to the present invention, owing to set the dehydration rate of expectation, the load decision maker is adjusted dewatering time according to the load of judging repeatedly, reaches the expectation dehydration rate of this setting, so can reach the dewatering state of user's expectation.
Claims (13)
1. a tumbling-box washing machine is characterized in that, comprising: speed detector, the rotating speed of motor of the rotating speed of detection swing roller or driving swing roller; The first rotating angular acceleration calculation element according to the rotating speed that this speed detector detects, is calculated near first rotating angular acceleration the setting rotating speed in the acceleration of swing roller; The second rotating angular acceleration calculation element according to the rotating speed that described speed detector detects, is calculated near second rotating angular acceleration the setting rotating speed in the free rotation state of the swing roller that cuts off described motor power supply slows down; With the load decision maker,, judge the load in the swing roller according to described first and second rotating angular accelerations.
2. tumbling-box washing machine as claimed in claim 1, it is characterized in that, according to accelerate to the poor of acceleration time of second desired speed and described first and second desired speed with the rotating speed of described speed detector detection from first desired speed in motor quickens, the described first rotating angular acceleration calculation element is calculated described first rotating angular acceleration; According to be decelerated to the poor of deceleration time of first desired speed and described first and second desired speed with the rotating speed of described speed detector detection from second desired speed in the free rotation state that cuts off the motor power supply slows down, the described second rotating angular acceleration calculation element is calculated described second rotating angular acceleration.
3. tumbling-box washing machine as claimed in claim 1, it is characterized in that, from the rotation speed change and the described scheduled time that first desired speed changes in the given time, the described first rotating angular acceleration calculation element is calculated described first rotating angular acceleration according to the rotating speed that detects with described speed detector in motor quickens; From the rotation speed change and the described scheduled time that second desired speed changes in the given time, the described second rotating angular acceleration calculation element is calculated described second rotating angular acceleration according to the rotating speed that detects with described speed detector in the deceleration of the free rotation state that cuts off the motor power supply.
4. as claim 2 or 3 described tumbling-box washing machines, it is characterized in that, is furnished with warning device, in the deceleration of the free rotation state that cuts off described motor power supply, the rotating speed that detects with described speed detector is not decelerated under the situation of described first desired speed at the appointed time from described second desired speed, gives a warning.
5. as claim 2 or 3 described tumbling-box washing machines, it is characterized in that being furnished with warning device, in described motor quickens, the rotating speed that detects with described speed detector does not accelerate in official hour under the situation of described second desired speed from described first desired speed, gives a warning.
6. tumbling-box washing machine as claimed in claim 1, it is characterized in that, is furnished with the feedwater starting apparatus, because described load decision maker carries out the judgement of load before the washing beginning, finish the determination processing of load at this load decision maker after, before stopping, the rotation of swing roller begins to supply water to swivelling chute.
7. tumbling-box washing machine as claimed in claim 1 is characterized in that, is furnished with the feedwater starting apparatus,, begins swivelling chute is supplied water in the load of judging with described load decision maker under the situation below the predetermined value.
8. tumbling-box washing machine as claimed in claim 1, it is characterized in that, is furnished with the deceleration regime setting device, after the described first rotating angular acceleration calculation element is calculated described first rotating angular acceleration, cut off power supply immediately, swing roller is set at the deceleration regime of free rotation state described motor.
9. tumbling-box washing machine as claimed in claim 1, it is characterized in that, is furnished with brake apparatus, in the deceleration regime of the swing roller free rotation state that cuts off described motor power supply, be lower than at the rotating speed that detects with described speed detector regulation rotating speed situation or through under the situation of the scheduled time, force to stop the rotation of described motor.
10. a tumbling-box washing machine is characterized in that, comprising: the first load decision maker, before the washing beginning, judge the load in the swing roller; The second load decision maker is judged the load in the swing roller after the process scheduled time in the dehydration stroke; Moisture is calculated device, according to two load of judging with the described first and second load decision makers, calculates the moisture of washings; With prediction unit drying time,, predict drying time according to the moisture that detects with this moisture checkout gear.
11. a tumbling-box washing machine is characterized in that, comprising: the first load decision maker, before the washing beginning, judge the load in the swing roller; The second load decision maker is judged the load in the swing roller in the dehydration stroke; With the dewatering time change device, according to two load of judging with the described first and second load decision makers, the change dewatering time.
12. tumbling-box washing machine as claimed in claim 11 is characterized in that, is furnished with: repeat control device, control the described second load decision maker, so that in the dehydration stroke, judge the load in the swing roller repeatedly; With the dewatering time control device, the control dewatering time is so that by this control that repeats control device, the load according to the described second load decision maker is judged repeatedly makes dehydration rate reach predetermined value.
13. tumbling-box washing machine as claimed in claim 12 is characterized in that, is furnished with: the dehydration rate setting device, set the dehydration rate of expecting; With the dewatering time regulator, utilize described repetition control device, judge load repeatedly according to the described second load decision maker, adjust dewatering time, make dehydration rate reach the expectation dehydration rate of setting with described dehydration rate setting device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9127451A JPH10314484A (en) | 1997-05-16 | 1997-05-16 | Drum type washing machine |
| JP127451/97 | 1997-05-16 | ||
| JP127451/1997 | 1997-05-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1199787A true CN1199787A (en) | 1998-11-25 |
| CN1179080C CN1179080C (en) | 2004-12-08 |
Family
ID=14960257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981084656A Expired - Fee Related CN1179080C (en) | 1997-05-16 | 1998-05-15 | Rotary-drum type washing machine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH10314484A (en) |
| KR (1) | KR100320667B1 (en) |
| CN (1) | CN1179080C (en) |
| GB (1) | GB2325245B (en) |
| IT (1) | ITTO980409A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7555798B2 (en) | 2003-10-23 | 2009-07-07 | Lg Electronics Inc. | Washer and washing cycle control method thereof |
| CN102277706A (en) * | 2010-06-14 | 2011-12-14 | 阿思科尔控股责任有限公司 | Method for measuring the moment of inertia of a drum of a washing machine and washing machine arranged to implement said method |
| CN103266442A (en) * | 2013-04-26 | 2013-08-28 | 无锡小天鹅股份有限公司 | Washing machine and drying control method thereof |
| CN107849778A (en) * | 2015-08-04 | 2018-03-27 | Aqua株式会社 | Washing machine |
| CN109402940A (en) * | 2017-08-16 | 2019-03-01 | 青岛海尔洗衣机有限公司 | Inner cylinder localization method and clothes treatment device for clothes treatment device |
| CN112805432A (en) * | 2018-10-02 | 2021-05-14 | 三星电子株式会社 | Washing machine |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348626B1 (en) * | 2000-09-28 | 2002-08-13 | 엘지전자주식회사 | Dection of the weight of a washing machine |
| JP3731060B2 (en) * | 2000-11-14 | 2006-01-05 | 株式会社日立製作所 | Inertia calculation method and motor drive device |
| KR100504486B1 (en) | 2002-12-10 | 2005-08-03 | 엘지전자 주식회사 | Method for Detecting Amount of the Washing in Washer |
| KR100934652B1 (en) * | 2002-12-28 | 2009-12-31 | 엘지전자 주식회사 | Washing machine control method |
| BR0300737A (en) * | 2003-03-13 | 2004-11-16 | Multibras Eletrodomesticos Sa | Automatic washing machine load detection system and process |
| JP4872776B2 (en) * | 2007-04-24 | 2012-02-08 | パナソニック株式会社 | Washing machine |
| JP4872777B2 (en) * | 2007-04-24 | 2012-02-08 | パナソニック株式会社 | Washing machine |
| JP4375447B2 (en) * | 2007-06-26 | 2009-12-02 | パナソニック株式会社 | Washing machine |
| US9416478B2 (en) | 2009-03-31 | 2016-08-16 | Lg Electronics Inc. | Washing machine and washing method |
| ES2605027T3 (en) * | 2009-02-11 | 2017-03-10 | Lg Electronics Inc | Washing machine |
| US9234307B2 (en) | 2009-07-27 | 2016-01-12 | Lg Electronics Inc. | Control method of a laundry machine |
| US9695537B2 (en) | 2009-07-27 | 2017-07-04 | Lg Electronics Inc. | Control method of a laundry machine |
| US9822473B2 (en) | 2009-07-27 | 2017-11-21 | Lg Electronics Inc. | Control method of a laundry machine |
| US10533275B2 (en) | 2009-07-27 | 2020-01-14 | Lg Electronics Inc. | Control method of a laundry machine |
| US8776297B2 (en) | 2009-10-13 | 2014-07-15 | Lg Electronics Inc. | Laundry treating apparatus and method |
| US8914930B2 (en) | 2010-04-13 | 2014-12-23 | Whirlpool Corporation | Laundry treating appliance with load amount detection |
| KR101919793B1 (en) * | 2012-09-24 | 2018-11-19 | 엘지전자 주식회사 | Method for Controlling a Laundry Treating Apparatus |
| KR101999700B1 (en) * | 2012-09-24 | 2019-07-12 | 엘지전자 주식회사 | Method for Controlling a Laundry Treating Apparatus |
| JP2017093534A (en) * | 2015-11-19 | 2017-06-01 | パナソニックＩｐマネジメント株式会社 | Washing machine |
| WO2020071739A1 (en) * | 2018-10-02 | 2020-04-09 | Samsung Electronics Co., Ltd. | Washing machine |
| JP7006642B2 (en) * | 2019-03-14 | 2022-01-24 | フジテック株式会社 | Passenger conveyor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63226395A (en) * | 1987-03-14 | 1988-09-21 | 株式会社東芝 | Detector for quantity of clothing of washing machine combining dehydration |
| KR950007069B1 (en) * | 1992-12-12 | 1995-06-30 | 엘지전자주식회사 | Method of clothes quantity and water-level determination |
| KR0129218B1 (en) * | 1993-12-30 | 1998-04-09 | 이헌조 | Dry control device and method using washing machine and dryer |
| DE4431846C2 (en) * | 1994-09-07 | 2001-02-15 | Diehl Ako Stiftung Gmbh & Co | Method for load-dependent control and / or regulation of a washing machine or a tumble dryer |
-
1997
- 1997-05-16 JP JP9127451A patent/JPH10314484A/en active Pending
-
1998
- 1998-05-13 GB GB9810275A patent/GB2325245B/en not_active Expired - Fee Related
- 1998-05-15 KR KR1019980017460A patent/KR100320667B1/en not_active IP Right Cessation
- 1998-05-15 IT IT98TO000409A patent/ITTO980409A1/en unknown
- 1998-05-15 CN CNB981084656A patent/CN1179080C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7555798B2 (en) | 2003-10-23 | 2009-07-07 | Lg Electronics Inc. | Washer and washing cycle control method thereof |
| CN1609329B (en) * | 2003-10-23 | 2010-06-02 | Lg电子株式会社 | Washer and washing cycle control method thereof |
| CN102277706A (en) * | 2010-06-14 | 2011-12-14 | 阿思科尔控股责任有限公司 | Method for measuring the moment of inertia of a drum of a washing machine and washing machine arranged to implement said method |
| CN102277706B (en) * | 2010-06-14 | 2016-08-10 | 阿思科尔控股责任有限公司 | Measure the method for the moment of inertia of washing machine drum and perform the washing machine of the method |
| CN103266442A (en) * | 2013-04-26 | 2013-08-28 | 无锡小天鹅股份有限公司 | Washing machine and drying control method thereof |
| CN107849778A (en) * | 2015-08-04 | 2018-03-27 | Aqua株式会社 | Washing machine |
| CN109402940A (en) * | 2017-08-16 | 2019-03-01 | 青岛海尔洗衣机有限公司 | Inner cylinder localization method and clothes treatment device for clothes treatment device |
| CN109402940B (en) * | 2017-08-16 | 2021-05-25 | 青岛胶南海尔洗衣机有限公司 | Inner drum positioning method for clothes treatment equipment and clothes treatment equipment |
| CN112805432A (en) * | 2018-10-02 | 2021-05-14 | 三星电子株式会社 | Washing machine |
| CN112805432B (en) * | 2018-10-02 | 2023-02-28 | 三星电子株式会社 | Washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980087064A (en) | 1998-12-05 |
| KR100320667B1 (en) | 2002-03-08 |
| ITTO980409A1 (en) | 1999-11-15 |
| GB9810275D0 (en) | 1998-07-15 |
| GB2325245B (en) | 1999-10-20 |
| CN1179080C (en) | 2004-12-08 |
| JPH10314484A (en) | 1998-12-02 |
| GB2325245A (en) | 1998-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1179080C (en) | Rotary-drum type washing machine | |
| US8726440B2 (en) | Method and device for determining the optimal rotational speed of a drum of a laundry treatment device | |
| EP0415743B1 (en) | Improvements in or relating to laundry machines and/or methods of controlling the same | |
| KR100339879B1 (en) | A method for determining the mass of laundry located inside a washing machine | |
| CN106637823A (en) | Washing machine and dehydration control method and washing machine and dehydration control device | |
| CN102191660B (en) | Method and device for controlling dehydration of washing machine | |
| CN1590629A (en) | Method for sensing amount of laundry of washing machine | |
| CN1795300A (en) | System and process for detecting a load of clothes in an automatic laundry machine | |
| RU94038773A (en) | Method for determining mass of wet linen in drum of washing machines | |
| CN1924154A (en) | Unbalance detection method and washing machine using the same | |
| CN1179083C (en) | Washing mode determine device and method thereof | |
| CN105671848B (en) | Washing machine and the method for judging washing machine load weight | |
| CN101981245A (en) | Method for estimating the moment of inertia of the rotating unit of a washing machine, and washing machine implementing said method | |
| CN101750188A (en) | Method for detecting dehydrating unbalance of variable frequency pulsator washing machine | |
| US20040068804A1 (en) | Method for controlling dehydrating operation of drum type washing machine | |
| EP2540901B1 (en) | Drum-type washing machine and washing control method performed by the same | |
| WO2014186992A1 (en) | Method for judging weight of clothes for series motor drum washing machine | |
| CN103088601B (en) | Roller washing machine and control method | |
| CN109537241B (en) | Belt falling detection method and washing machine | |
| CN104213367B (en) | Method for series excited motor roller washing machine to judge weight of clothes | |
| CN103464310A (en) | Automatic control method and system for vibrating centrifuge | |
| CN1090261C (en) | Running controller for fully antomatic washing machine | |
| CN113605045A (en) | Control method of clothes treatment equipment | |
| CN203144743U (en) | Drum washing machine | |
| CN112709045A (en) | Control method and device of washing machine and washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041208 |