CN108930127A - Eccentric cognitive method and eccentric sensing device, rotary drum washing machine - Google Patents
Eccentric cognitive method and eccentric sensing device, rotary drum washing machine Download PDFInfo
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- CN108930127A CN108930127A CN201710382474.0A CN201710382474A CN108930127A CN 108930127 A CN108930127 A CN 108930127A CN 201710382474 A CN201710382474 A CN 201710382474A CN 108930127 A CN108930127 A CN 108930127A
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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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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Abstract
The present invention provides a kind of eccentric cognitive methods of rotary drum washing machine, the eccentric sensing device and a kind of rotary drum washing machine of a kind of rotary drum washing machine, wherein the eccentric cognitive method of the rotary drum washing machine includes：When the rotary drum washing machine enters the water smoking, the running speed of the motor of the rotary drum washing machine is acquired；When the running speed is within the scope of preset rotation speed, multiple predetermined currents of the motor within each electric period are obtained；Determine the current maxima in the multiple predetermined current in each electric period；According in every adjacent two electric periods the first current maxima and the second current maxima identify the bias of the rotary drum washing machine.According to the technical solution of the present invention, it being capable of the specific eccentric situation of initiative recognition rotary drum washing machine, so that the eccentric situation intelligence that basis identifies diversely controls the working condition of the next stage of rotary drum washing machine, realize that the user experience is improved while eccentric intelligence perceives.
Description
Technical field
The present invention relates to washing machine technology fields, wash in particular to eccentric cognitive method, the impeller of rotary drum washing machine
The eccentric sensing device and rotary drum washing machine of clothing machine.
Background technique
Currently, in the water smoking of rotary drum washing machine in the market, be the nonlinear working stage of multiple degrees of freedom, when depositing
In bias due to the effect of salt hydrosphere, there are uncertainties to lead to displacement or oscillation phenomenon for the power output of motor；And most of waves
The generation of wheel washer washing machine tub-impact phenomenon in order to prevent, it is general using machinery hit by the way of bucket switchs come to eccentric size into
Row judgement,
But when carrying out eccentric identification in such a way that machinery hits bucket switch, not only can not achieve eccentric actively perceive,
And when partial wave wheel washer is eccentric larger, it is typically also that just will do it protection after tubbiness state serious hit occurs, leads
Cause user experience poor.
Therefore, it is necessary to the eccentric cognition technologies to rotary drum washing machine to improve.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, an object of the present invention is to provide a kind of eccentric cognitive method of new rotary drum washing machine, it can
The specific eccentric situation of initiative recognition rotary drum washing machine, to intelligently diversely control impeller according to the eccentric situation identified
The working condition of the next stage of washing machine realizes that the user experience is improved while eccentric intelligence perceives.
It is another object of the present invention to correspondences to propose the eccentric sensing device and a kind of wave of a kind of rotary drum washing machine
Wheel washer.
To realize above-mentioned at least one purpose, according to the first aspect of the invention, a kind of the inclined of rotary drum washing machine is proposed
Heart cognitive method, including：When the rotary drum washing machine enters the water smoking, the operation of the motor of the rotary drum washing machine is acquired
Revolving speed；When the running speed is within the scope of preset rotation speed, multiple default electricity of the motor within each electric period are obtained
Stream；Determine the current maxima in the multiple predetermined current in each electric period；According to every two adjacent electricity weeks
The first current maxima and the second current maxima in phase identify the bias of the rotary drum washing machine.
In the technical scheme, when rotary drum washing machine enters the water smoking, pass through the fortune of the motor in rotary drum washing machine
Multiple predetermined currents of the acquisition motor in each electric period when row revolving speed is in preset rotation speed range, and in each electric period
Multiple predetermined currents carry out size and relatively determine current maxima therein, then according to two in the period electric per adjacent two
A current maxima carrys out the eccentric situation of initiative recognition perception rotary drum washing machine, according to the specific eccentric feelings of rotary drum washing machine
The further intelligence of the judging result of condition diversely controls the working condition of the next stage of rotary drum washing machine, realizes eccentric intelligence
The user experience is improved while energy allelopathic is known.
In the above-mentioned technical solutions, it is preferable that first current maxima of the basis per adjacent two in the electric period
The eccentric step of the rotary drum washing machine is identified with the second current maxima, including：Judge first current maxima and
Whether the absolute value of the difference of second current maxima is greater than pre-set current value；Make if so, current cumulative number is increased by 1
For new cumulative number, and identify according to the new cumulative number bias of the rotary drum washing machine, wherein cumulative number is
The absolute value of the difference of two current maximas in adjacent two of the statistics electric period is continuously bigger than the pre-set current value
Number；If it is not, the current maxima in next electric period is obtained, to continue judgement two per adjacent two in the electric period
Whether the absolute value of the difference of current maxima is greater than the pre-set current value, and identifies the rotary drum washing machine according to judging result
Bias.
In the technical scheme, according to two current maximas in every two adjacent electric periods, (the first electric current is maximum
Value and the second current maxima) identification rotary drum washing machine bias during, specifically calculate the first current maxima first
With the difference of the second current maxima, then determine the difference absolute value be greater than pre-set current value when, by two of statistics
The cumulative number that the absolute value of the difference of current maxima is greater than pre-set current value increases by 1 time, and new tired according to what is obtained after adding 1
Metering number further identifies the eccentric situation of rotary drum washing machine；And if working as the absolute of the difference of two previous current maximas
Value then continues to obtain the current maxima in next electric period no more than the pre-set current value, to continue new adjacent two
A current maxima carries out seeking difference and asks difference the operation of absolute value, and further closes according to the size of pre-set current value
System further identifies the eccentric situation of rotary drum washing machine, so, it is possible to ensure actively perceive rotary drum washing machine specifically eccentric feelings
The accuracy of condition, eccentric excessive caused vibration and shifting phenomena when being effectively prevented from dehydration.
In any of the above-described technical solution, it is preferable that identify the rotary drum washing machine according to the new cumulative number
Eccentric step, including：Judge whether the new cumulative number reaches preset times within a preset time；If so, described
The eccentric anomaly of rotary drum washing machine controls the rotary drum washing machine and carries out shaking loose work；If it is not, then rotary drum washing machine it is eccentric just
Often, it controls the rotary drum washing machine and continues dewatering work.
In the technical scheme, it is greater than according to the absolute value of the difference of the current maxima in adjacent two electric periods pre-
If the cumulative number identification rotary drum washing machine of current value is specifically during eccentric situation, if updated accumulative time every time
Number has reached preset times within a preset time, i.e. the difference of current maxima in adjacent two electric periods within a preset time
The cumulative number that the absolute value of value is greater than pre-set current value has reached preset times, then illustrates the eccentric anomaly of rotary drum washing machine,
It is easy then to need to control impeller at this time due to eccentric excessive the phenomenon that causing rotary drum washing machine to vibrate or shift in dehydration
Washing machine carries out shaking loose work, to continue normal dehydration；And if every time updated cumulative number preset times peace
In gamut, then it can control rotary drum washing machine and carry out dewatering work, to realize the work to the next stage of rotary drum washing machine
The intelligence for making state diversely controls, and promotes user experience.
In any of the above-described technical solution, it is preferable that after the rotary drum washing machine enters the water smoking, described in acquisition
Before the running speed of the motor of rotary drum washing machine, the bias cognitive method further includes：It detects whether to receive to the wave
The assisted instruction of the motor of wheel washer；If so, the running speed for controlling the motor is accelerated within the scope of preset rotation speed,
Otherwise the running speed for controlling the motor keeps preset rotation speed stable operation, and the preset rotation speed is located at the preset rotation speed model
In enclosing.
In the technical scheme, to rotary drum washing machine during specifically eccentric situation identifies, either
The motor boost phase in water smoking is realized, is also possible to realize in motor stable speed operation's stage in water smoking, so that it is guaranteed that
Rotary drum washing machine realizes the stage diversification and feasibility of actively eccentric perception.
In any of the above-described technical solution, it is preferable that the predetermined current includes：The torque current of the motor is described
The bus current of motor.
In the technical scheme, its bias of actively perceive is realized by the current information of the motor of the rotary drum washing machine of acquisition
Middle electric current is either the torque current in each of motor of rotary drum washing machine electricity period is also possible to each of motor electricity week
Bus current in phase；It is possible to further by obtain first the phase current in each of motor electric period then to its into
The mode of row coordinate transformation obtains corresponding torque current.So, it can be ensured that the specific eccentric feelings of actively perceive rotary drum washing machine
The accuracy of condition.
According to the second aspect of the invention, it is also proposed that a kind of eccentric sensing device of rotary drum washing machine, including：Acquire mould
Block, for acquiring the running speed of the motor of the rotary drum washing machine when the rotary drum washing machine enters the water smoking；It obtains
Module, it is multiple pre- within each electric period for when the running speed is within the scope of preset rotation speed, obtaining the motor
If electric current；Determining module, for determining the current maxima in the multiple predetermined current in each electric period；Identification
Module, for according to the first current maxima and the second current maxima identification impeller in the period electric per adjacent two
The bias of washing machine.
In the technical scheme, when rotary drum washing machine enters the water smoking, pass through the fortune of the motor in rotary drum washing machine
Multiple predetermined currents of the acquisition motor in each electric period when row revolving speed is in preset rotation speed range, and in each electric period
Multiple predetermined currents carry out size and relatively determine current maxima therein, then according to two in the period electric per adjacent two
A current maxima carrys out the eccentric situation of initiative recognition perception rotary drum washing machine, according to the specific eccentric feelings of rotary drum washing machine
The further intelligence of the judging result of condition diversely controls the working condition of the next stage of rotary drum washing machine, realizes eccentric intelligence
The user experience is improved while energy allelopathic is known.
In the above-mentioned technical solutions, it is preferable that the identification module includes：Judging submodule, for judging described first
Whether the absolute value of the difference of current maxima and second current maxima is greater than pre-set current value；Submodule is handled, is used for
When the judging submodule determines that the absolute value is greater than the pre-set current value, current cumulative number is increased by 1 conduct
New cumulative number, and identify according to the new cumulative number bias of the rotary drum washing machine, wherein cumulative number is system
Continuously time than the pre-set current value greatly of the absolute value of the difference of two current maximas in adjacent two of the meter electric period
Number；Control submodule, for controlling when the judging submodule determines that the absolute value is less than or equal to the pre-set current value
System obtains the current maxima in next electric period, to continue two electric current maximums of the judgement per adjacent two in the electric period
Whether the absolute value of the difference of value is greater than the pre-set current value, and the bias of the rotary drum washing machine is identified according to judging result.
In the technical scheme, according to two current maximas in every two adjacent electric periods, (the first electric current is maximum
Value and the second current maxima) identification rotary drum washing machine bias during, specifically calculate the first current maxima first
With the difference of the second current maxima, then determine the difference absolute value be greater than pre-set current value when, by two of statistics
The cumulative number that the absolute value of the difference of current maxima is greater than pre-set current value increases by 1 time, and new tired according to what is obtained after adding 1
Metering number further identifies the eccentric situation of rotary drum washing machine；And if working as the absolute of the difference of two previous current maximas
Value then continues to obtain the current maxima in next electric period no more than the pre-set current value, to continue new adjacent two
A current maxima carries out seeking difference and asks difference the operation of absolute value, and further closes according to the size of pre-set current value
System further identifies the eccentric situation of rotary drum washing machine, so, it is possible to ensure actively perceive rotary drum washing machine specifically eccentric feelings
The accuracy of condition, eccentric excessive caused vibration and shifting phenomena when being effectively prevented from dehydration.
In any of the above-described technical solution, it is preferable that the processing submodule is specifically used for：Judge accumulative time newly
Whether number reaches preset times within a preset time；If so, the eccentric anomaly of the rotary drum washing machine, controls the impeller and washes
Clothing machine carries out shaking loose work；If it is not, then the bias of rotary drum washing machine is normal, controls the rotary drum washing machine and continue to be dehydrated work
Make.
In the technical scheme, it is greater than according to the absolute value of the difference of the current maxima in adjacent two electric periods pre-
If the cumulative number identification rotary drum washing machine of current value is specifically during eccentric situation, if updated accumulative time every time
Number has reached preset times within a preset time, i.e. the difference of current maxima in adjacent two electric periods within a preset time
The cumulative number that the absolute value of value is greater than pre-set current value has reached preset times, then illustrates the eccentric anomaly of rotary drum washing machine,
It is easy then to need to control impeller at this time due to eccentric excessive the phenomenon that causing rotary drum washing machine to vibrate or shift in dehydration
Washing machine carries out shaking loose work, to continue normal dehydration；And if every time updated cumulative number preset times peace
In gamut, then it can control rotary drum washing machine and carry out dewatering work, to realize the work to the next stage of rotary drum washing machine
The intelligence for making state diversely controls, and promotes user experience.
In any of the above-described technical solution, it is preferable that the eccentric sensing device of the rotary drum washing machine further includes：Detect mould
Block, for after the rotary drum washing machine enters the water smoking, the acquisition module acquire the motor of the rotary drum washing machine
Running speed before, detect whether the assisted instruction for receiving the motor to the rotary drum washing machine；Control module is used for
When the detection module detects the assisted instruction, the running speed for controlling the motor is added within the scope of preset rotation speed
Speed, the running speed for otherwise controlling the motor keep preset rotation speed stable operation, and the preset rotation speed is located at described default turn
In fast range.
In the technical scheme, to rotary drum washing machine during specifically eccentric situation identifies, either
The motor boost phase in water smoking is realized, is also possible to realize in motor stable speed operation's stage in water smoking, so that it is guaranteed that
Rotary drum washing machine realizes the stage diversification and feasibility of actively eccentric perception.
In any of the above-described technical solution, it is preferable that the predetermined current includes：The torque current of the motor is described
The bus current of motor.
In the technical scheme, its bias of actively perceive is realized by the current information of the motor of the rotary drum washing machine of acquisition
Middle electric current is either the torque current in each of motor of rotary drum washing machine electricity period is also possible to each of motor electricity week
Bus current in phase；It is possible to further by obtain first the phase current in each of motor electric period then to its into
The mode of row coordinate transformation obtains corresponding torque current.So, it can be ensured that the specific eccentric feelings of actively perceive rotary drum washing machine
The accuracy of condition.
According to the third aspect of the invention we, it is also proposed that any one of a kind of rotary drum washing machine, including technical solution as above
The eccentric sensing device of the rotary drum washing machine.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows the flow diagram of the eccentric cognitive method of the rotary drum washing machine of the embodiment of the present invention；
Fig. 2 shows the schematic block diagrams of the eccentric sensing device of the rotary drum washing machine of the embodiment of the present invention；
Fig. 3 shows the schematic block diagram of identification module shown in Fig. 2；
Fig. 4 shows the structural schematic diagram of the rotary drum washing machine of the embodiment of the present invention；
Fig. 5 shows the method flow schematic diagram of the eccentric aware scheme of the rotary drum washing machine of the embodiment of the present invention；
Fig. 6 shows the eccentric perception speed curves schematic diagram of the rotary drum washing machine of the embodiment of the present invention；
Fig. 7 shows the box traction substation of the simulation eccentric testing of the embodiment of the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the flow diagram of the eccentric cognitive method of the rotary drum washing machine of the embodiment of the present invention.
As shown in Figure 1, the eccentric cognitive method of the rotary drum washing machine of embodiment according to the present invention, specifically includes to flow down
Journey step：
Step 102, when the rotary drum washing machine enters the water smoking, the operation of the motor of the rotary drum washing machine is acquired
Revolving speed.
Further, in this step, after the rotary drum washing machine enters the water smoking, the acquisition impeller laundry
Before the running speed of the motor of machine, the bias cognitive method can also include following process step：
Detect whether to receive the assisted instruction of the motor to the rotary drum washing machine；
If so, the running speed for controlling the motor is accelerated within the scope of preset rotation speed, the motor is otherwise controlled
Running speed keep preset rotation speed stable operation, the preset rotation speed is located within the scope of the preset rotation speed.
In this embodiment, to rotary drum washing machine during specifically eccentric situation identifies, either de-
The motor boost phase in water stage is realized, is also possible to realize in motor stable speed operation's stage in water smoking, be ensured that
Rotary drum washing machine realizes the stage diversification and feasibility of actively eccentric perception.
Step 104, when the running speed is within the scope of preset rotation speed, the motor is obtained within each electric period
Multiple predetermined currents.
In this step, the preset rotation speed range is preferably 30rpm~60rpm；And predetermined current includes but unlimited
In：The bus current of the torque current of the motor or the motor.
That is, rotary drum washing machine is for actively carrying out the current of electric of eccentric perception either rotary drum washing machine
Torque current in each of motor electricity period is also possible to the bus current in each of motor electric period；Further, may be used
It is obtained in a manner of by obtaining the phase current in each of motor electric period first then to carry out coordinate transformation to it corresponding
Torque current.So, it can be ensured that the accuracy of the specific eccentric situation of actively perceive rotary drum washing machine.
Step 106, the current maxima in the multiple predetermined current in each electric period is determined.
Step 108, according to the first current maxima and the identification of the second current maxima in every two adjacent electric periods
The bias of the rotary drum washing machine.
In this embodiment, when rotary drum washing machine enters the water smoking, pass through the operation of the motor in rotary drum washing machine
Multiple predetermined currents of the acquisition motor in each electric period when revolving speed is in preset rotation speed range, and to more in each electric period
A predetermined current carries out size and relatively determines current maxima therein, then according to two in the period electric per adjacent two
Current maxima carrys out the eccentric situation of initiative recognition perception rotary drum washing machine, according to the specific eccentric situation of rotary drum washing machine
Judging result further intelligence diversely control rotary drum washing machine next stage working condition, realize eccentric intelligence
The user experience is improved while allelopathic is known.
Further, step 108 in above-described embodiment can specifically be executed as following process step：
Judge whether the absolute value of the difference of first current maxima and second current maxima is greater than default electricity
Flow valuve.
When the absolute value of the difference for determining first current maxima and second current maxima is greater than described preset
When current value, current cumulative number is increased by 1 as new cumulative number, and according to the new cumulative number identification
The bias of rotary drum washing machine, wherein cumulative number is the difference of two current maximas in the adjacent two electric period of statistics
The continuous number bigger than the pre-set current value of absolute value.
Further, identify that the bias of the rotary drum washing machine is specific according to the new cumulative number in above-mentioned steps
Including：
Judge whether the new cumulative number reaches preset times within a preset time；
If so, the eccentric anomaly of the rotary drum washing machine, controls the rotary drum washing machine and carries out shaking loose work；
If it is not, then the bias of rotary drum washing machine is normal, controls the rotary drum washing machine and continue dewatering work.
In this embodiment, it is greater than according to the absolute value of the difference of the current maxima in adjacent two electric periods default
The cumulative number identification rotary drum washing machine of current value is specifically during eccentric situation, if updated cumulative number every time
Preset times are reached within a preset time, i.e. the difference of current maxima in adjacent two electric periods within a preset time
Absolute value be greater than pre-set current value cumulative number reached preset times, then illustrate the eccentric anomaly of rotary drum washing machine, hold
Easily then needs to control impeller at this time and wash due to eccentric excessive the phenomenon that causing rotary drum washing machine to vibrate or shift in dehydration
Clothing machine carries out shaking loose work, to continue normal dehydration；And if every time updated cumulative number preset times safety
In range, then it can control rotary drum washing machine and carry out dewatering work, to realize the work to the next stage of rotary drum washing machine
The intelligence of state diversely controls, and promotes user experience.
Wherein, the time that preset time can take two turns for the washing machine drum of rotary drum washing machine, and preset times are preferred
It can be 3 times.
And when the absolute value of the difference for determining first current maxima and second current maxima is less than or equal to
When the pre-set current value, the current maxima in next electric period is obtained, to continue judgement per two adjacent electricity periods
Whether the absolute value of the difference of two interior current maximas is greater than the pre-set current value, and identifies the wave according to judging result
The bias of wheel washer.
In this embodiment, according to two current maxima (the first current maximas in every two adjacent electric periods
With the second current maxima) identification rotary drum washing machine bias during, specifically calculate first the first current maxima and
The difference of second current maxima, then when the absolute value for determining the difference is greater than pre-set current value, by two electricity of statistics
The absolute value for flowing the difference of maximum value is greater than the cumulative number of pre-set current value and increases by 1 time, and new accumulative according to what is obtained after adding 1
Number further identifies the eccentric situation of rotary drum washing machine；And if the absolute value of the difference when two previous current maximas
Then continue to obtain the current maxima in next electric period no more than the pre-set current value, to continue new adjacent two
Current maxima carries out seeking difference and asks difference the operation of absolute value, and further according to the size relation with pre-set current value
The eccentric situation for further identifying rotary drum washing machine so, it is possible to ensure actively perceive rotary drum washing machine specifically eccentric situation
Accuracy, when being effectively prevented from dehydration it is eccentric it is excessive caused by vibration and shifting phenomena.
Wherein, pre-set current value is preferably that perunit value 600 is computed corresponding current value after conversion, specifically can basis
The difference of the type of rotary drum washing machine and it is different.
Fig. 2 shows the schematic block diagrams of the eccentric sensing device of the rotary drum washing machine of the embodiment of the present invention.
As shown in Fig. 2, the eccentric sensing device 20 of the rotary drum washing machine of embodiment according to the present invention, including：Acquire mould
Block 202 obtains module 204, determining module 206 and identification module 208.
Wherein, the acquisition module 202 is used for when the rotary drum washing machine enters the water smoking, is acquired the impeller and is washed
The running speed of the motor of clothing machine；The acquisition module 204 is used for when the running speed is within the scope of preset rotation speed, is obtained
Multiple predetermined currents of the motor within each electric period；The determining module 206 is for determining in each electric period
The multiple predetermined current in current maxima；The identification module 208 is used for according in the period electric per adjacent two
The first current maxima and the second current maxima identify the bias of the rotary drum washing machine.
In this embodiment, when rotary drum washing machine enters the water smoking, pass through the operation of the motor in rotary drum washing machine
Multiple predetermined currents of the acquisition motor in each electric period when revolving speed is in preset rotation speed range, and to more in each electric period
A predetermined current carries out size and relatively determines current maxima therein, then according to two in the period electric per adjacent two
Current maxima carrys out the eccentric situation of initiative recognition perception rotary drum washing machine, according to the specific eccentric situation of rotary drum washing machine
Judging result further intelligence diversely control rotary drum washing machine next stage working condition, realize eccentric intelligence
The user experience is improved while allelopathic is known.
Wherein, the preset rotation speed range is preferably 30rpm~60rpm.
Further, as shown in figure 3, the identification module 208 in above-described embodiment includes：Judging submodule 2082, processing
Submodule 2084 and control submodule 2086.
Wherein, the judging submodule 2082 is for judging first current maxima and second current maxima
Absolute value of the difference whether be greater than pre-set current value；The processing submodule 2084 is used to determine in the judging submodule 2082
When the absolute value is greater than the pre-set current value, current cumulative number is increased by 1 as new cumulative number, and according to institute
State the bias that new cumulative number identifies the rotary drum washing machine, wherein cumulative number is the adjacent two electric period of statistics
The continuous number bigger than the pre-set current value of the absolute value of the difference of two interior current maximas；The control submodule 2086
For when the judging submodule 2082 determines that the absolute value is less than or equal to the pre-set current value, control to obtain next
Current maxima in a electricity period, to continue the exhausted of difference of the judgement per two current maximas in two adjacent electricity periods
Whether the pre-set current value is greater than to value, and identifies the bias of the rotary drum washing machine according to judging result.
In this embodiment, according to two current maxima (the first current maximas in every two adjacent electric periods
With the second current maxima) identification rotary drum washing machine bias during, specifically calculate first the first current maxima and
The difference of second current maxima, then when the absolute value for determining the difference is greater than pre-set current value, by two electricity of statistics
The absolute value for flowing the difference of maximum value is greater than the cumulative number of pre-set current value and increases by 1 time, and new accumulative according to what is obtained after adding 1
Number further identifies the eccentric situation of rotary drum washing machine；And if the absolute value of the difference when two previous current maximas
Then continue to obtain the current maxima in next electric period no more than the pre-set current value, to continue new adjacent two
Current maxima carries out seeking difference and asks difference the operation of absolute value, and further according to the size relation with pre-set current value
The eccentric situation for further identifying rotary drum washing machine so, it is possible to ensure actively perceive rotary drum washing machine specifically eccentric situation
Accuracy, when being effectively prevented from dehydration it is eccentric it is excessive caused by vibration and shifting phenomena.
Wherein, pre-set current value is preferably that perunit value 600 is computed corresponding current value after conversion, specifically can basis
The difference of the type of rotary drum washing machine and it is different.
Further, in the above-described embodiments, the processing submodule 2084 is specifically used for：Judge accumulative time newly
Whether number reaches preset times within a preset time；If so, the eccentric anomaly of the rotary drum washing machine, controls the impeller and washes
Clothing machine carries out shaking loose work；If it is not, then the bias of rotary drum washing machine is normal, controls the rotary drum washing machine and continue to be dehydrated work
Make.
In this embodiment, it is greater than according to the absolute value of the difference of the current maxima in adjacent two electric periods default
The cumulative number identification rotary drum washing machine of current value is specifically during eccentric situation, if updated cumulative number every time
Preset times are reached within a preset time, i.e. the difference of current maxima in adjacent two electric periods within a preset time
Absolute value be greater than pre-set current value cumulative number reached preset times, then illustrate the eccentric anomaly of rotary drum washing machine, hold
Easily then needs to control impeller at this time and wash due to eccentric excessive the phenomenon that causing rotary drum washing machine to vibrate or shift in dehydration
Clothing machine carries out shaking loose work, to continue normal dehydration；And if every time updated cumulative number preset times safety
In range, then it can control rotary drum washing machine and carry out dewatering work, to realize the work to the next stage of rotary drum washing machine
The intelligence of state diversely controls, and promotes user experience.
Wherein, the time that preset time can take two turns for the washing machine drum of rotary drum washing machine, and preset times are preferred
It can be 3 times.
Further, in any of the above-described embodiment, as shown in Fig. 2, the eccentric sensing device 20 of the rotary drum washing machine
Further include：Detection module 210 and control module 212.
Wherein, the detection module 210 is used for after the rotary drum washing machine enters the water smoking, the acquisition module
Before the running speed of the motor of the 202 acquisition rotary drum washing machines, detect whether to receive the electricity to the rotary drum washing machine
The assisted instruction of machine；The control module 212 is used for when the detection module 210 detects the assisted instruction, controls institute
The running speed for stating motor is accelerated within the scope of preset rotation speed, and the running speed for otherwise controlling the motor keeps default and turns
Fast stable operation, the preset rotation speed are located within the scope of the preset rotation speed.
In this embodiment, to rotary drum washing machine during specifically eccentric situation identifies, either de-
The motor boost phase in water stage is realized, is also possible to realize in motor stable speed operation's stage in water smoking, be ensured that
Rotary drum washing machine realizes the stage diversification and feasibility of actively eccentric perception.
Further, in any of the above-described embodiment, the predetermined current includes：The torque current of the motor is described
The bus current of motor.
In this embodiment, it is realized in its bias of actively perceive by the current information of the motor of the rotary drum washing machine of acquisition
Electric current is either the torque current in each of motor of rotary drum washing machine electricity period is also possible to each of motor electric period
Interior bus current；It is possible to further then be carried out to it by obtaining the phase current in each of motor electric period first
The mode of coordinate transformation obtains corresponding torque current.So, it can be ensured that the specific eccentric situation of actively perceive rotary drum washing machine
Accuracy.
As the embodiment of the present invention, it is also proposed that described in any one of a kind of rotary drum washing machine, including above-described embodiment
Rotary drum washing machine eccentric sensing device 20.
As another embodiment of the invention, as shown in figure 4, the rotary drum washing machine in the embodiment includes ontology (figure
In be not shown), washing machine drum 402, motor 404 and controller 406 in the body is set.
Wherein, for driving washing machine drum 402 to carry out rotary work, controller 406 enters motor 404 in rotary drum washing machine
When the water smoking, and it is in the boost phase from 30rpm to 60rpm in the revolving speed of motor 404, controller 406 acquires motor 404
Phase current, and the torque current of motor 404 is obtained by coordinate transform, and within each of motor 404 electric period, pass through ratio
Relatively obtain the maximum value of the torque current in the electricity period.Controller 406 by comparing the two neighboring electric period torque current
Maximum value difference and setting threshold value size relation, with judge the load in washing machine drum 402 bias it is whether excessive.
If excessive, controller 406 controls motor 404 and stops operating, and master control is notified to be shaken loose again；If the difference is not above
The threshold value of setting then controls rotary drum washing machine and carries out next stage state, and final realize perceives eccentric size by motor 404,
Realize eccentric intelligent perception.
Specific eccentric perception process is as shown in figure 5, include following below scheme step：
Step 502, dehydration starts.
Step 504, assisted instruction is sent, so that motor speed constantly rises.
Step 506, revolving speed sampling is carried out, to obtain the revolving speed of motor.
Step 508, judge whether the running speed of motor is in the boost phase of 30rpm~60rpm, it is specific such as Fig. 6
It is shown, if executing step 510, otherwise continue to execute step 506.
Step 510, multiple phase currents in sample motor each electric period.
Step 512, phase current is coordinately transformed, to obtain corresponding multiple torque currents.
Step 514, the torque current maximum value in each electric period is determined.
Step 516, judge whether the absolute value of the difference of the torque current maximum value in the electric period of adjacent two is greater than
600, if so, executing step 518, otherwise continue to execute step 506.
Step 518, judging result is added 1 for the cumulative number m greater than 600.
Step 520, judge whether be greater than 3 in the washing machine drum m in the time that takes two turns, if executing step 522, otherwise continue
Dehydration.
Step 524, it sends and shakes loose instruction, shaken loose with controlling rotary drum washing machine.
Further, as shown in fig. 7, illustrating each eccentric in different loads of rotary drum washing machine, adjacent two electricity
The data box figure of the difference of period internal torque current maxima, wherein horizontal line be set threshold value, i.e., -600.Eccentric size from
0kg to 2.6kg, load are respectively 8kg and 16kg, carry out the acquisition of data, show to may be implemented partially by setting a threshold value
The perception of the active of the heart.
To sum up, actively perceive impeller is carried out by the variation of the difference of the torque current maximum value in two neighboring electric period to wash
Clothing machine is eccentric.Entering the water smoking, washing machine operates in low-speed stage first, by acquiring 30rpm-60rpm accelerator
At the end of, the eccentric size of variable quantity size perception laundry of two neighboring electricity period torque current, and then according to eccentric size, certainly
The working condition of stage washing machine is fixed, to realize the Intellisense of washing machine bias.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, can be actively
Rotary drum washing machine specifically eccentric situation is identified, thus according to the eccentric situation intelligence identified diversely control impeller laundry
The working condition of the next stage of machine realizes that the user experience is improved while eccentric intelligence perceives.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of eccentric cognitive method of rotary drum washing machine, which is characterized in that including：
When the rotary drum washing machine enters the water smoking, the running speed of the motor of the rotary drum washing machine is acquired；
When the running speed is within the scope of preset rotation speed, multiple default electricity of the motor within each electric period are obtained
Stream；
Determine the current maxima in the multiple predetermined current in each electric period；
According to the first current maxima and the second current maxima identification impeller laundry in every two adjacent electric periods
The bias of machine.
2. the eccentric cognitive method of rotary drum washing machine according to claim 1, which is characterized in that the basis is per adjacent
The first current maxima and the second current maxima in two electric periods identify the eccentric step of the rotary drum washing machine, packet
It includes：
Judge whether first current maxima and the absolute value of the difference of second current maxima are greater than pre-set current value；
If so, current cumulative number is increased by 1 as new cumulative number, and according to the new cumulative number identification
The bias of rotary drum washing machine, wherein cumulative number is the difference of two current maximas in the adjacent two electric period of statistics
The continuous number bigger than the pre-set current value of absolute value；
If it is not, the current maxima in next electric period is obtained, to continue judgement two per adjacent two in the electric period
Whether the absolute value of the difference of current maxima is greater than the pre-set current value, and identifies the rotary drum washing machine according to judging result
Bias.
3. the eccentric cognitive method of rotary drum washing machine according to claim 2, which is characterized in that added up according to described new
Number identifies the eccentric step of the rotary drum washing machine, including：
Judge whether the new cumulative number reaches preset times within a preset time；
If so, the eccentric anomaly of the rotary drum washing machine, controls the rotary drum washing machine and carries out shaking loose work；
If it is not, then the bias of rotary drum washing machine is normal, controls the rotary drum washing machine and continue dewatering work.
4. the eccentric cognitive method of rotary drum washing machine according to claim 1, which is characterized in that in the rotary drum washing machine
After into the water smoking, before the running speed of the motor of the acquisition rotary drum washing machine, the bias cognitive method is also wrapped
It includes：
Detect whether to receive the assisted instruction of the motor to the rotary drum washing machine；
If so, the running speed for controlling the motor is accelerated within the scope of preset rotation speed, the fortune of the motor is otherwise controlled
Row revolving speed keeps preset rotation speed stable operation, and the preset rotation speed is located within the scope of the preset rotation speed.
5. the eccentric cognitive method of rotary drum washing machine according to any one of claim 1 to 4, which is characterized in that described
Predetermined current includes：The bus current of the torque current of the motor or the motor.
6. a kind of eccentric sensing device of rotary drum washing machine, which is characterized in that including：
Acquisition module, for acquiring the fortune of the motor of the rotary drum washing machine when the rotary drum washing machine enters the water smoking
Row revolving speed；
Module is obtained, for when the running speed is within the scope of preset rotation speed, obtaining the motor within each electric period
Multiple predetermined currents；
Determining module, for determining the current maxima in the multiple predetermined current in each electric period；
Identification module, for according to the first current maxima and the identification of the second current maxima in the period electric per adjacent two
The bias of the rotary drum washing machine.
7. the eccentric sensing device of rotary drum washing machine according to claim 6, which is characterized in that the identification module packet
It includes：
Judging submodule, for judge first current maxima and second current maxima absolute value of the difference whether
Greater than pre-set current value；
Submodule is handled, is used for when the judging submodule determines that the absolute value is greater than the pre-set current value, it will be current
Cumulative number increase and 1 identify the inclined of the rotary drum washing machine as new cumulative number, and according to the new cumulative number
The heart, wherein cumulative number is that the absolute value of the difference of two current maximas in the adjacent two electric period of statistics continuously compares
The big number of the pre-set current value；
Control submodule is used for when the judging submodule determines that the absolute value is less than or equal to the pre-set current value,
Control obtains the current maxima in next electric period, to continue two electric currents of the judgement per adjacent two in the electric period most
Whether the absolute value of the difference of big value is greater than the pre-set current value, and identifies the inclined of the rotary drum washing machine according to judging result
The heart.
8. the eccentric sensing device of rotary drum washing machine according to claim 7, which is characterized in that the processing submodule tool
Body is used for：
Judge whether the new cumulative number reaches preset times within a preset time；
If so, the eccentric anomaly of the rotary drum washing machine, controls the rotary drum washing machine and carries out shaking loose work；
If it is not, then the bias of rotary drum washing machine is normal, controls the rotary drum washing machine and continue dewatering work.
9. the eccentric sensing device of rotary drum washing machine according to claim 6, which is characterized in that further include：
Detection module, for after the rotary drum washing machine enters the water smoking, the acquisition module acquires the impeller and washes
Before the running speed of the motor of clothing machine, the assisted instruction for receiving the motor to the rotary drum washing machine is detected whether；
Control module, for when the detection module detects the assisted instruction, the running speed for controlling the motor to exist
Accelerated within the scope of preset rotation speed, the running speed for otherwise controlling the motor keeps preset rotation speed stable operation, described pre-
If revolving speed is located within the scope of the preset rotation speed.
10. the eccentric sensing device of rotary drum washing machine according to any one of claims 6 to 9, which is characterized in that described
Predetermined current includes：The bus current of the torque current of the motor or the motor.
11. a kind of rotary drum washing machine, which is characterized in that including the rotary drum washing machine as described in any one of claim 6 to 10
Eccentric sensing device.
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| CN112709045A (en) * | 2019-10-08 | 2021-04-27 | 无锡飞翎电子有限公司 | Control method and device of washing machine and washing machine |
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