CN104652092B - A kind of eccentric detection method of automatic washing machine - Google Patents
A kind of eccentric detection method of automatic washing machine Download PDFInfo
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Abstract
The invention discloses a kind of eccentric detection method of automatic washing machine, comprise the following steps to implement：The automatic washing machine has casing, outer barrel and interior bucket, said tub is mounted in the casing by suspension rod, the bottom of the casing is provided with footing, the pressure sensor of n detection load-bearing stress value is respectively equipped with diverse location on the both ends of the suspension rod or footing, wherein n >=2, the eccentricity detecting are realized by following steps：S10:The load-bearing stress value of multiple positions is detected by the multiple pressure sensor；S20：Determine interior bucket with the presence or absence of bias according to the load-bearing stress value of more multiple positions.Eccentric detection method provided by the invention, eccentricity detecting is carried out to washing machine using more than two pressure sensors, pressure sensor has preferable sensitivity, can improve the precision of eccentricity detecting, and the position of eccentric clothing can be determined from different directions, so as to improve the accuracy of eccentricity detecting.
Description
Technical field
The present invention relates to washing machine detection field, more particularly to a kind of eccentric detection method of automatic washing machine.
Background technology
During washing machine use due to the water absorbing capacity of washings, material it is inconsistent, easily there is washings distribution
The problem of uneven.Washings skewness can cause the off-center position of the rotary shaft of washing machine, and washing machine operates in eccentric shape
Under state.Eccentric state can cause interior bucket to hit casing or control-rod, produce vibration or noise, even occur when eccentric serious and wash
The problem of displacement of clothing machine, jump or damage.
A kind of laundry amounts of roller washing machines of Chinese patent literature publication number CN1611662A and the detection means of eccentricity value
And its detection method, implementation step are as follows：Roller in rotation, the outer barrel for encasing roller and outer barrel bottom both sides are set
The shock absorber that can weaken outer barrel vibration, the sliding part upper end of the shock absorber in test section is provided with permanent magnet, and with
The fixed part inner top side of the shock absorber of the corresponding position of permanent magnet is provided with to export to be become according to the distance of permanent magnet
Change and export in the roller washing machine of the test section that different magnitude of voltage MR sensors are formed, its detection method is divided into by according to two
The magnitude of voltage of the test section output of side shock absorber detects the detection-phase of laundry amounts and defeated according to the test section of both sides shock absorber
The voltage difference gone out obtains detection-phase to detect eccentricity value.
The patent is detected by MR sensors between length change or the both sides shock absorber of the shock absorber of support outer barrel
Length difference measures the bias of washing machine, and this mode will set up the device for detecting length as complexity, and the precision that detects with
The rigidity of itself, the retractility of shock absorber are relevant, therefore detecting structure can be influenceed by shock absorber, and accuracy of detection is not high, reaction
It is more blunt.In addition, being limited by shock absorber installation site, the position of eccentric clothing can not be accurately determined.
The content of the invention
The defects of in order to overcome prior art, technical problem to be solved of the invention are to propose a kind of automatic washing
The eccentric detection method of clothing machine, there is higher accuracy of detection and detection sensitivity, can accurately determine the position of eccentric clothing.
To use following technical scheme up to this purpose, the present invention：
A kind of eccentric detection method of automatic washing machine provided by the invention, the automatic washing machine have casing,
Interior bucket located at the outer barrel of the box house and inside said tub, said tub are mounted on the case by suspension rod
In vivo, the bottom of the casing is provided with footing, and n inspection is respectively equipped with the diverse location on the both ends of the suspension rod or footing
The pressure sensor of load-bearing stress value is surveyed, wherein n >=2, the eccentricity detecting is realized by following steps：
S10:The load-bearing stress value of multiple positions is detected by the multiple pressure sensor；
S20：Determine interior bucket with the presence or absence of bias according to the load-bearing stress value of more multiple positions.
The further technical scheme of the present invention：Step S20 comprises the following steps：
S210：Presupposed off-center reference value M；
S211：Detect and record the detected value G of n pressure sensor11、G12…G1n；
S212：Calculate G11、G12…G1nThe difference DELTA G of middle maximum and minimum value,
Wherein, maximum Gmax=max { G1j, the n of j=1,2,3 ... },
Minimum value Gmin=min { G1j, the n of j=1,2,3 ... }, Δ G=Gmax-Gmin；
S213：Compare the difference DELTA G and default eccentric reference value M size；
If Δ G<M, then assert bias be present, the washing machine enters the water smoking；
If Δ G >=M, assert that the washing machine enters the eccentric adjusting stage without bias be present.
The further technical scheme of the present invention：Step S20 comprises the following steps：
S220：Presupposed off-center reference value M and rotary reference value R and detection number p；
S221：Detect for the first time and record the detected value G of n pressure sensor11、G12…G1n, wherein n >=2；
S222：Compare detected value G11、G12…G1nSize, the position of eccentric clothing is tentatively judged according to comparative result；
S223：The interior bucket rotates R degree, detects again and records the detected value G of n pressure sensori1、Gi2…Gin；
S224：Compare detected value Gi1、Gi2…GinSize, the position of eccentric clothing is verified according to comparative result；
S225：Repeat S223 steps and S224 steps p-1 times, the p of wherein i=2,3,4 ..., p >=2；It is true according to comparative result
The position of fixed eccentric clothing, and calculate whole detected value G of pth time detectionp1、Gp2…GpnThe difference of middle maximum and minimum value
It is worth Δ G；Wherein, maximum Gmax=max { Gpj, the n of j=1,2,3 ... },
Minimum value Gmin=min { Gpj, the n of j=1,2,3 ... }, Δ G=Gmax-Gmin；
S226：Compare the difference DELTA G and the eccentric reference value M size；
If Δ G<M, then assert bias be present, the washing machine enters the water smoking,
If Δ G >=M, assert that the washing machine enters the eccentric adjusting stage without bias be present.
The further technical scheme of the present invention：The quantity n=4, the detection number p=2 of the pressure sensor.
The further technical scheme of the present invention：The pressure sensor be fixed on the suspension rod and fixed seat junction or
The junction of the suspension rod and drift angle.
Beneficial effects of the present invention are：
Control method for washing machine provided by the invention, eccentric inspection is carried out to washing machine using more than two pressure sensors
Survey, pressure sensor has preferable sensitivity, can improve the precision of eccentricity detecting, and can be from using more than two sensors
Different azimuth determines the position of eccentric clothing, more can accurately determine the position of eccentric clothing.Control method for washing machine
The eccentricity detecting stage by tentatively judging and verifying that two steps determine eccentric clothing position, can improve the accurate of eccentricity detecting
Property.If in addition, finding that eccentricity issues occurs in washing machine during above-mentioned eccentricity detecting, the washing machine also has eccentric adjustment
Function, it can effectively eliminate eccentricity issues caused by washing machine.
Brief description of the drawings
Fig. 1 is the flow chart of the eccentric detection method for the automatic washing machine that the specific embodiment of the invention provides；
Fig. 2 is the general flow chart for the control method for washing machine that the specific embodiment of the invention provides；
Fig. 3 is the flow chart of the job step in the eccentricity detecting stage that the specific embodiment of the invention provides；
Fig. 4 is the flow chart of the job step for the eccentric adjusting stage that the specific embodiment of the invention provides；
Fig. 5 is the structure chart for the washing machine that the specific embodiment of the invention provides, and pressure sensor is located at footing；
Fig. 6 is the structure chart for the washing machine that the specific embodiment of the invention provides, and pressure sensor is located at suspension rod.
In figure：
1st, casing；2nd, outer barrel；3rd, suspension rod；4th, footing；5th, pressure sensor；6th, impeller；21st, fixed seat；11st, drift angle.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Embodiment one
As shown in figure 1, it is the flow chart of the eccentric detection method of the automatic washing machine provided in embodiment one.
A kind of eccentric detection method of the automatic washing machine provided in embodiment one, implements as follows：
SO steps：Washing machine is opened, the washing of drum type washing machine time described in user preset is xmin, and rinsing times are y times, generally
X=5min or 10min or 15min, y=2 or 3.
S1 steps：Washing machine enters the washing stage, and clothing is washed, and the washing stage is primarily to remove washing machine
Spot.
S2 steps：After washing terminates, for the first time into eccentricity detecting stage, under the eccentricity detecting stage, the control of washing machine
Device processed carries out eccentricity detecting by the more than two pressure sensors 5 being connected with controller to washing machine.Using two or more
Pressure sensor 5 can determine the position of eccentric clothing from different directions, improve the accuracy of eccentricity detecting
S3 steps：Into water smoking first time, clothing is dehydrated, dehydration for the first time is mainly reduced and washed in clothing
Wash the content of water.
S4 steps：Into rinse stage, clothing is rinsed, rinse stage mainly cleans to cleaning solution, i.e.,
The process of clothing is cleaned with clear water.
S5 steps：After clothing once rinses, into eccentricity detecting stage, under the eccentricity detecting stage, controller control
Make more than two pressure sensors 5 and eccentricity detecting is carried out to washing machine.
S6 steps：Into the water smoking, clothing is dehydrated again, it is de- with entering for the first time specifically to enter the water smoking
Water stage working method is similar, mainly goes the content of detergent in water removal, there is provided cleaning effect.
S7 steps：Repeat S1 and S2 steps x times, terminate the washing stage.When user sets multiple rinsing times, drift every time
After the stage of washing terminates, it is required to be dehydrated after the eccentricity detecting stage, to improve cleaning performance, then enters back into next step
In.
S8 steps：After rinse stage terminates, for the last time into eccentricity detecting stage, under the eccentricity detecting stage, control
Device controls more than two pressure sensors 5 to carry out eccentricity detecting to washing machine.
S9 steps：Into the stage of drying, clothing is dried.
S10 steps：Terminate the drying stage, washing machine is out of service.
Because two or more pressure sensor 5 cooperates in the presence of washing machine controller, can from different directions on
The eccentric situation of washing machine is detected, the sensitivity of whole detecting system can be effectively improved.In addition, pressure sensor also may be used
To replace with pulling force sensor.
As shown in Fig. 2 it is the flow chart of the job step in the eccentricity detecting stage in embodiment one.
The eccentricity detecting is realized by following steps：
S10:The load-bearing stress value of multiple positions is detected by the multiple pressure sensor 5；
S20：Determine interior bucket with the presence or absence of bias according to the load-bearing stress value of more multiple positions.
Embodiment two
Further scheme, the eccentric detection method in eccentricity detecting stage are as follows：
(1) the eccentric number of the laundry machine testing is 1 time.
S210 steps：The presupposed off-center reference value M in the controller of washing machine；
S211 steps：Controller is detected caused by washing machine internal clothing gravity by more than two pressure sensors 5
Pressure, and controller records the detected value G of whole pressure11、G12…G1n, wherein n >=2, represent the quantity of pressure sensor 5；
S212 steps：The controller calculates G11、G12…G1nThe difference DELTA G of middle maximum and minimum value,
Wherein, maximum Gmax=max { G1j, the n of j=1,2,3 ... },
Minimum value Gmin=min { G1j, the n of j=1,2,3 ... }, Δ G=Gmax-Gmin；
S213：The size of the controller difference DELTA G and default eccentric reference value M；
If Δ G<M, then assert bias be present, the washing machine enters the water smoking；
If Δ G >=M, assert that the washing machine enters the eccentric adjusting stage without bias be present.
Embodiment three
Further scheme, the eccentric detection method in eccentricity detecting stage are as follows：
It is with the difference of embodiment two：It is p times to detect number.
S220 steps：The presupposed off-center reference value M and rotary reference value R and detection number p in the controller of washing machine.
When washing machine starts, the initial value of more than two pressure sensors 5 is zeroed by controller, now in washing machine
Clothing is not placed, and initial value is zeroed by each washing machine using process, is advantageous to prevent accumulated error.
S221 steps：Controller is detected caused by washing machine internal clothing gravity by more than two pressure sensors 5
Pressure, and controller records the detected value G of whole pressure11、G12…G1n, wherein n >=2, the quantity of pressure sensor 5 is represented, i.e.,
Whole sensors detects above-mentioned pressure for the first time, obtains detected value.
S222 steps：Controller compares detected value G11、G12…G1nSize, eccentric clothing is tentatively judged according to comparative result
The position of thing.Assuming that G12Value it is maximum, then it is eccentric to illustrate that washing machine is present, and the most heavy position of eccentric thing is positioned at second sensing
At where device.
S223 steps：Controller controlled motor driving interior bucket rotation R degree, controller detect again by pressure sensor 5
Pressure caused by washing machine internal clothing gravity, controller record the detected value G of whole pressurei1、Gi2…Gin, wherein i=2,3,
4 ... m, i.e. whole sensor iths detect above-mentioned pressure, obtain detected value.
That is, in S222 steps after the completion of the detection of the first side, controller meeting controlled motor driving interior bucket rotation R degree,
Above-mentioned pressure detecting is carried out again, and this process can repeat according to accuracy of detection, and this number also with pressure sensor 5 has
Close.Assuming that pressure sensor 5 is only two, then needs detection number p more, should at least ensure washing machine half revolution, ability
Realize and the eccentric situation of each position of washing machine is comprehensively detected.
S224 steps：The controller compares detected value Gi1、Gi2…GinSize, eccentric clothing is verified according to comparative result
The position of thing, verification method are typically to cause washing machine to rotate 180 °, i.e. R=180 ° of rotary reference value in S222 steps.This
Sample is detected as the G of maximum of points for the first time12, this time detection should be minimum point, so as to further demonstrate washing machine presence
Bias, and the most heavy position of eccentric thing is at second sensor place.By S222 steps and S224 steps, i.e., tentatively sentence
Disconnected step and verification step, it may be determined that eccentric clothing position, the accuracy of eccentricity detecting can be improved.
S225 steps：S223 steps and S224 steps p-1 times are repeated, the position of eccentric clothing is determined according to comparative result,
And the controller calculates whole detected value G of pth time detectionp1、Gp2…GpnThe difference DELTA G of middle maximum and minimum value.
Specific calculating process is as follows：The whole detected value G of controllerpjSize.
According to detected value GpjSize find out maximum Gmax=max { Gpj, the n of j=1,2,3 ... } and minimum value Gmin=min
{Gpj, the n of j=1,2,3 ... }.Wherein, GpjRepresent the detected pressure value of j-th of pressure sensor 5 in pth time detection.
Controller calculates the difference DELTA G=G of the maximum and minimum valuemax-Gmin。
S226 steps：Controller compares difference DELTA G and eccentric reference value M size.
If Δ G<M, eccentricity detecting stop, and washing machine enters the water smoking.
If Δ G >=M, washing machine enters the eccentric adjusting stage or sends alarm, reminds user of service's manual handle.
As shown in figure 4, being the structure chart of the washing machine provided in embodiment one, pressure sensor is located at footing.
A kind of washing machine, including controller, casing 1, interior bucket, outer barrel 2 and suspension rod 3 are additionally provided in embodiment one, outside
Bucket 2 is inside the casing 1, and interior bucket be located at the inside of outer barrel 2, and the first end of suspension rod 3 is connected with casing 1, the second end of suspension rod 3 and
Outer barrel 2 connects, and the bottom of casing 1 is provided with footing 4, and the bottom of interior bucket is provided with motor, and controller is connected with motor, the interior bucket
Bottom is provided with impeller 6.Pressure sensor 5 is fixed on footing 4, and footing 4 is more sensitive to the Gravity changer of interior bucket.
As shown in figure 5, being the structure chart of the washing machine provided in embodiment one, pressure sensor is located at suspension rod.
It is with Fig. 4 difference：Pressure sensor 5 is fixed on the junction of suspension rod 3 and fixed seat 21, same suspension rod
The Gravity changer of 3 pairs of interior buckets is also very sensitive.In addition, pressure sensor 5 can also be fixed on the connection of suspension rod 3 and drift angle 11
Place.
It is preferably the quantity n=4 of pressure sensor 5 in the present embodiment, detects number p=2, R=180 ° of rotary reference value.
The job step in eccentricity detecting stage is as follows：
First, controller detects pressure caused by washing machine internal clothing gravity by four pressure sensors 5, and controls
Device records the detected value G of whole pressure11、G12、G13、G14.Then, controller compares detected value G11、G12、G13、G14Size,
The position of eccentric clothing is tentatively judged according to comparative result.Assuming that G12Value it is maximum, then it is eccentric and eccentric to illustrate that washing machine is present
The most heavy position of thing is at second sensor place.Then, controller controlled motor driving interior bucket rotates 180 °, that is, rotates
R=180 ° of reference value.Controller detects pressure caused by washing machine internal clothing gravity, control again by pressure sensor 5
Device records the detected value G of whole pressure21、G22、G23、G24, i.e., whole sensors detect above-mentioned pressure, are detected for the second time
Value.Controller compares detected value G21、G22、G23、G24Size.At this moment, the G of maximum of points is detected as the first time12, this time detect
It should be minimum point, bias be present so as to further demonstrate washing machine, and the most heavy position of eccentric thing is positioned at second biography
At where sensor.Then, the position of eccentric clothing is determined according to comparative result, and controller calculates the whole of second of detection
Detected value G21、G22、G23、G24The difference DELTA G of middle maximum and minimum value.Finally, controller compares difference DELTA G and eccentric reference
Value M size,
If Δ G<M, eccentricity detecting stop, and washing machine enters the water smoking.
If Δ G >=M, washing machine enters the eccentric adjusting stage or sends alarm, reminds user of service's manual handle.
Example IV
As shown in Figures 2 and 3, it is respectively the general flow chart of the control method for washing machine provided in example IV and eccentric tune
The flow chart of the job step in whole stage.
The difference of example IV and embodiment two or embodiment three is：Further define the eccentric adjusting stage
Job step, comprise the following steps that：
S40 steps：Washing machine, which enters, to be washed the even adjusting stage, and for washing machine in when washing the even adjusting stage, washing machine also can be right
Clothing is rinsed, but the total time-consuming for generally washing the even adjusting stage can be less than the total time-consuming normally rinsed, to accelerate eccentric adjust
The process in whole stage.
S41 steps：Wash after the even adjusting stage terminates, controller control washing machine performs S221 steps to S225 steps and obtained
Difference DELTA G.
S42 steps：Controller compares difference DELTA G and eccentric reference value M size,
If Δ G<M, bias adjustment stop, and washing machine enters the water smoking；
If Δ G >=M, washing machine, which enters, washes the even adjusting stage.
S43 steps：S40 steps are repeated to S42：Step, if after the even adjusting stage is washed in l entrance of washing machine, controller ratio
It is Δ G >=M compared with difference DELTA G and eccentric reference value M size, then controller control washing machine operation suspension, and send alarm, carries
Show that the mode of user manually shakes loose clothing, after clothing shakes loose, washing machine terminates to suspend, and continues to run with, and is walked into S41
Suddenly.
That is, the even adjusting stage is washed in the most l entrance of washing machine, more than l times, eccentricity issues are not handled, hair
Go out alarm and reminding user of service's manual handle, not less than l times or the l times adjustment after eccentricity issues be resolved be put into dehydration rank
Section.The process of even adjusting stage is washed every time, is required to S221 steps to the S225 steps that washing machine is performed in embodiment one and is carried out
Eccentricity detecting.
Preferred washing machine enters the number l=3 for washing the even adjusting stage in the present embodiment, this be by repeatedly putting into practice to obtain,
As long as i.e. after the abundant adjust automatically of washing machine, just user of service is reminded artificially to locate in the case of eccentricity issues are still unsolved
Reason.
S44 steps：S40 steps are repeated to S43 steps, until washing machine enters the water smoking.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from the present invention's
In the case of spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Scope.
Claims (3)
1. a kind of eccentric detection method of automatic washing machine, the automatic washing machine has casing (1), located at the casing
(1) internal outer barrel (2) and the interior bucket positioned at said tub (2) inside, said tub (2) are mounted on institute by suspension rod (3)
State in casing (1), the bottom of the casing (1) is provided with footing (4), it is characterised in that：In the both ends of the suspension rod (3) or footing
(4) pressure sensor (5) of n detection load-bearing stress value, wherein n >=2 are respectively equipped with the diverse location on；
The eccentricity detecting is realized by following steps：
S10：The load-bearing stress value of multiple positions is detected by the multiple pressure sensor (5)；
S20：Determine interior bucket with the presence or absence of bias according to the load-bearing stress value of more multiple positions；
Step S20 comprises the following steps：
S220：Presupposed off-center reference value M and rotary reference value R and detection number p；
S221：Detect for the first time and record the detected value G of n pressure sensor (5)11、G12…G1n, wherein n >=2；
S222：Compare detected value G11、G12…G1nSize, the position of eccentric clothing is tentatively judged according to comparative result；
S223：The interior bucket rotates R degree, detects again and records the detected value G of n pressure sensor (5)i1、Gi2…Gin；
S224：Compare detected value Gi1、Gi2…GinSize, the position of eccentric clothing is verified according to comparative result；
S225：Repeat S223 steps and S224 steps p-1 times, the p of wherein i=2,3,4 ..., p >=2；Determined according to comparative result inclined
The position of heart clothing, and calculate whole detected value G of pth time detectionp1、Gp2…GpnThe difference DELTA of middle maximum and minimum value
G；
Wherein, maximum Gmax=max { Gpj, the n of j=1,2,3 ... },
Minimum value Gmin=min { Gpj, the n of j=1,2,3 ... }, Δ G=Gmax-Gmin；
S226：Compare the difference DELTA G and the eccentric reference value M size；
If Δ G<M, then assert bias be present, the washing machine enters the water smoking,
If Δ G >=M, assert that the washing machine enters the eccentric adjusting stage without bias be present.
2. the eccentric detection method of automatic washing machine according to claim 1, it is characterised in that：
The quantity n=4 of the pressure sensor (5)；
The detection number p=2.
3. the eccentric detection method of automatic washing machine according to claim 1, it is characterised in that：
The pressure sensor (5) is fixed on junction or the suspension rod (3) and the drift angle of the suspension rod (3) and fixed seat (21)
(11) junction.
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| CN109695127B (en) * | 2017-10-24 | 2021-12-21 | 无锡小天鹅电器有限公司 | Eccentricity detection method and system, pulsator washing machine, server and storage medium |
| CN110468557A (en) * | 2018-05-10 | 2019-11-19 | 株式会社焦点工坊 | Washing machine and rotating device |
| CN112442832B (en) * | 2019-08-28 | 2023-07-18 | 青岛胶南海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| CN111537347B (en) * | 2020-05-25 | 2023-08-25 | 无锡市恒鼎智能装备科技有限公司 | Fatigue damage detection device |
| CN114481548B (en) * | 2020-11-13 | 2023-11-03 | 无锡小天鹅电器有限公司 | Laundry treating apparatus, control method and device thereof, and storage medium |
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