CN1548612A - Eccentricity detecting method for tumble washer - Google Patents
Eccentricity detecting method for tumble washer Download PDFInfo
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- CN1548612A CN1548612A CNA031297269A CN03129726A CN1548612A CN 1548612 A CN1548612 A CN 1548612A CN A031297269 A CNA031297269 A CN A031297269A CN 03129726 A CN03129726 A CN 03129726A CN 1548612 A CN1548612 A CN 1548612A
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Abstract
The eccentricity detecting method for tumble washer includes the following stages: accelerating motor in closed loop control mode and executing uniform speed control within the first set time; driving motor in open loop control mode within the second set time and calculating the motor speed in certain period; summing continuous speed data within certain time and calculating acceleration data via speed subtraction; dividing the continuous acceleration intervals and calculating the eccentric acceleration in different intervals via subtracting the minimum acceleration from the maximum acceleration; dividing the continuous eccentric acceleration intervals and summing the eccentric acceleration data to detect the final eccentricity value. The present invention can raise the eccentricity detecting performance for tumble washer.
Description
Technical field
The present invention relates to roller washing machine, particularly a kind of eccentric detection method about roller washing machine.
Background technology
In general, because roller washing machine with respect to the washing machine of other kinds, has the washing material injury minimum, and its water consumption also seldom, so used widely by the consumer.As shown in Figure 1, it is to comprise following components to constitute, promptly comprise fuselage 1, be fixed on the washtub 2 of the inside of fuselage 1 by the damper (not shown), washings is put into the inside of washtub 2, carry the driving force of motor 10 to be rotated by conveyer belt 11 again, thereby finish the cylinder 3 of washing process, the heat regulator 4 that is provided with in order to measure the temperature that supplies to the washings on the cylinder 3, drop into the washing agent bucket 5 of washing agent, be connected with washing agent bucket 5 and supply with the feed pipe 6 of washings that washings or supply are mixed with the washing agent of washing agent bucket 5, the drainpipe 7 of eliminating already used washings in washing process, be connected the end of drainpipe and force to extract the pump 8 and the drainpipe 9 of washings.
The basic course of work for the roller washing machine of above-mentioned formation describes as follows.At first, user's opening installation drops into washings, again input washing instruction at the gate (omitting and not expression) of fuselage 1 front.Then washings can will be full of cylinder 3 inside along the guiding of feed pipe 6.Then level sensor monitors the washings corresponding to the designated water level of input washings, and monitoring value is outputed to control part.Control part is according to the monitoring value of output, after identification feedwater finishes, and drive motors 10, thus the cylinder that makes 3 is rotated and washs.
On the other hand, after washing process finished, pump 8 will drive, and made washings through drainpipe 7 and drainpipe 9, was discharged to the outside.After drainage procedure finishes, continue to carry out and clean, dehydrating operations, and finish washing process.
In order to finish dehydrating operations, at first will finish eccentricity detecting, but this process is by by open loop control mode motor being quickened, the variation that reexamines the detergent bubble amount on this acceleration area section is finished.
Eccentric detection method according to the roller washing machine of prior art is by open loop approach, and motor is quickened and finishes.But because when quickening, often do not reach the speed of the target of requirement, and show erratic variation,, and then can not carry out eccentricity detecting exactly so detergent bubble can not spread equably and come.
In addition, do not detecting exactly like this under the eccentric state, when carrying out dehydrating operations, vibrations along with washtub, not only can produce noise, but also can produce washing machine from original position enterprising line displacement phenomenon, when situation is serious, also can bring because of washtub is difficult to bear this vibrations, and damaged problem.
Summary of the invention
In order to solve the above problems, the purpose of this invention is to provide a kind of eccentric detection method that can correctly detect the roller washing machine of eccentric situation.
In order to achieve the above object, technical scheme of the present invention provides a kind of eccentric detection method of roller washing machine, comprises with the next stage:
Phase I: utilize close-loop control mode to add speed motor, when motor reaches target velocity, in the 1st setting-up time, carry out at the uniform velocity control;
Second stage: after through the 1st setting-up time, within the 2nd setting-up time,, and go out the data of motor speed with certain computation of Period with the open loop control mode drive motors; For continuous speed data, sue for peace with certain unit stage, from the summing value in leading unit stage deduct the summing value in continuous unit stage, thereby calculate acceleration information;
Phase III: divide with certain interval for continuous acceleration information, and in each unit interval, from the acceleration information of maximum, deduct the minimum acceleration data, thereby calculate eccentric acceleration;
Quadravalence section: divide with certain unit interval for continuous eccentric acceleration information, and sue for peace, thereby detect final eccentricity value for the eccentric acceleration information on each interval.
In the eccentric data of the calculating of second stage, described certain cycle is that the rotating machinery angle is 30 °.
In the eccentric data of the calculating of phase III, described certain interval is the data that calculate in the time that rotates a circle according to sink.
Effect of the present invention is that the eccentric detection method of this roller washing machine is, at first by close-loop control mode, the detergent bubble distribution is come, and the condition that can finish eccentricity detecting exactly is provided.By open loop control mode, utilize the variation of speed to detect eccentricity value, again so improved eccentricity detecting performance for tumble washer.
Description of drawings
Fig. 1 is the structural representation of general washing machine;
Fig. 2 is the chronogram that the present invention detects the process of the eccentric state of roller washing machine;
Fig. 3 is the chronogram of the eccentric detection method of roller washing machine of the present invention.
The specific embodiment
Reaching embodiment with reference to the accompanying drawings is described in detail for the eccentric detection method of roller washing machine of the present invention.
Fig. 2 is the chronogram that the present invention detects the process of the eccentric state of roller washing machine; Fig. 3 is the chronogram of the eccentric detection method of roller washing machine of the present invention.
Eccentricity detecting process for roller washing machine of the present invention is elaborated, and as shown in Figure 2, it is by constituting between preliminary detection interval and detection zone and between deceleration area substantially.
The preliminary detection interval by quicken and at the uniform velocity control interval constitute, thereby carry out closed-loop fashion control, and between detection zone, carry out open loop approach control.
In the preliminary detection interval, by carrying out closed-loop fashion control, thereby provide a kind of condition that can carry out eccentricity detecting exactly, promptly making detergent bubble distribute equably comes, on between detection zone,, carry out actual eccentricity detecting operation by open loop control mode, then foundation and the corresponding speed of detected offset are carried out dehydrating operations.
Be described in detail as follows for above-mentioned process.
At first,, make it accelerate to the rotary speed of having set, for example make it reach 108RPM by close-loop control mode control motor 10.
If reached 108RPM, then at the 1st setting-up time for example within 3 seconds, carry out constant speed control with close-loop control mode, promptly within 3 seconds, make its speed of keeping 108RPM, further calculate the mean value of moment of torsion and flow.
At this moment,, come, make to detect eccentricity value exactly so detergent bubble can distribute well because be at the uniform velocity to control by close-loop control mode.
And,, carry out speed control with open loop control mode, thereby detect eccentricity value for example within 4 seconds at the 2nd setting-up time, slow down again.
For the detection method of eccentric data, it is as follows to be elaborated with reference to Fig. 3.
Before being elaborated, we represent as can be known with straight line from Fig. 2, speed in interval when at the uniform velocity controlling, though be to keep certain speed on Fig. 2, in fact it has fluctuation as shown in Figure 3.
At first, under as velocity variations state shown in Figure 3, with some cycles, 30 ° (favourable turn angle 720 °) finding speed data (V all for example at each rotating machinery angle
K).
With the data of some, for example deduct the summing value of its 6 speed data before, thereby calculate acceleration information (a then from 6 speed data sums
k).That is,
a
k＝(V
K+V
K-1+V
K-2+V
K-3+V
K-4+V
K-5)-(V
K-6+V
K-7+V
K-8+V
K-9+V
K-10+V
K-11)
Then, with certain cycle, for example when sink has rotated a week, promptly reach 360 °, the data (a of acceleration at the rotating machinery angle
k) when reaching 12, in the data of these acceleration, deduct minimum of a value from maximum, thus eccentric data calculated.That is,
Data=max (a of acceleration
1, a
2... a
12)-min (a
1, a
2... a
12)
And, calculate the data of nearest some again, for example calculate 3 eccentric data sums, thereby detect final eccentricity value.
[mathematical expression 1]
Y＝0.206X+9
In above-mentioned formula, Y is eccentric data, and X is final eccentricity value.
Detected so final eccentricity value and eccentric data have the correlation as mathematical expression 1.
Claims (3)
1, a kind of eccentric detection method of roller washing machine comprised with the next stage:
Phase I: utilize close-loop control mode to add speed motor (10), when reaching target velocity, in the 1st setting-up time, carry out at the uniform velocity control at motor (10);
Second stage: after through the 1st setting-up time, within the 2nd setting-up time,, and go out the data of motor speed with certain computation of Period with open loop control mode drive motors (10); For continuous speed data, sue for peace with certain unit stage, from the summing value in leading unit stage deduct the summing value in continuous unit stage, thereby calculate acceleration information;
Phase III: divide with certain interval for continuous acceleration information, and in each unit interval, from the acceleration information of maximum, deduct the minimum acceleration data, thereby calculate eccentric acceleration;
Quadravalence section: divide with certain unit interval for continuous eccentric acceleration information, and sue for peace, thereby detect final eccentricity value for the eccentric acceleration information on each interval.
2, the eccentric detection method of roller washing machine according to claim 1 is characterized in that: in the eccentric data of the calculating of second stage, described certain cycle is that the rotating machinery angle is 30 °.
3, the eccentric detection method of roller washing machine according to claim 1 is characterized in that: in the eccentric data of the calculating of phase III, described certain interval is the data that calculate in the time that rotates a circle according to sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031297269A CN1548612A (en) | 2003-05-13 | 2003-05-13 | Eccentricity detecting method for tumble washer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031297269A CN1548612A (en) | 2003-05-13 | 2003-05-13 | Eccentricity detecting method for tumble washer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828382A (en) * | 2011-06-15 | 2012-12-19 | 苏州三星电子有限公司 | Method for judging eccentric state of drum washing machine before dehydrating at high speed |
| CN107099969A (en) * | 2017-05-08 | 2017-08-29 | 无锡飞翎电子有限公司 | Washing machine eccentric detection method, machinable medium and variable-frequency washing machine |
| CN107201626A (en) * | 2017-05-31 | 2017-09-26 | 广东威灵电机制造有限公司 | Roller washing machine and its dehydration controlling method, device and machinable medium |
| CN107245839A (en) * | 2017-05-31 | 2017-10-13 | 广东威灵电机制造有限公司 | Control method for drum washing machine, device, machinable medium and roller washing machine |
| CN107245838A (en) * | 2017-05-31 | 2017-10-13 | 广东威灵电机制造有限公司 | Roller washing machine and its control method, device and machinable medium |
| CN108360212A (en) * | 2018-02-01 | 2018-08-03 | 惠而浦（中国）股份有限公司 | A method of washing effect is judged by acceleration transducer |
| CN110578229A (en) * | 2019-09-23 | 2019-12-17 | 卧龙电气驱动集团股份有限公司 | method for rapidly detecting eccentricity of washing machine |
| CN113564871A (en) * | 2021-05-28 | 2021-10-29 | 海信（山东）冰箱有限公司 | Washing machine tub collision detection method and device, medium and washing machine |
-
2003
- 2003-05-13 CN CNA031297269A patent/CN1548612A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828382A (en) * | 2011-06-15 | 2012-12-19 | 苏州三星电子有限公司 | Method for judging eccentric state of drum washing machine before dehydrating at high speed |
| CN107099969A (en) * | 2017-05-08 | 2017-08-29 | 无锡飞翎电子有限公司 | Washing machine eccentric detection method, machinable medium and variable-frequency washing machine |
| CN107099969B (en) * | 2017-05-08 | 2019-12-17 | 无锡飞翎电子有限公司 | Washing machine eccentricity detection method, machine readable storage medium and variable frequency washing machine |
| CN107245839B (en) * | 2017-05-31 | 2019-07-12 | 广东威灵电机制造有限公司 | Control method for drum washing machine, device, machine readable storage medium and roller washing machine |
| CN107245838A (en) * | 2017-05-31 | 2017-10-13 | 广东威灵电机制造有限公司 | Roller washing machine and its control method, device and machinable medium |
| CN107245839A (en) * | 2017-05-31 | 2017-10-13 | 广东威灵电机制造有限公司 | Control method for drum washing machine, device, machinable medium and roller washing machine |
| CN107201626A (en) * | 2017-05-31 | 2017-09-26 | 广东威灵电机制造有限公司 | Roller washing machine and its dehydration controlling method, device and machinable medium |
| CN107201626B (en) * | 2017-05-31 | 2020-08-04 | 广东威灵电机制造有限公司 | Drum washing machine and dehydration control method and device thereof and machine readable storage medium |
| CN107245838B (en) * | 2017-05-31 | 2022-04-15 | 广东威灵电机制造有限公司 | Drum washing machine, control method and device thereof, and machine-readable storage medium |
| CN108360212A (en) * | 2018-02-01 | 2018-08-03 | 惠而浦（中国）股份有限公司 | A method of washing effect is judged by acceleration transducer |
| CN108360212B (en) * | 2018-02-01 | 2023-11-28 | 惠而浦（中国）股份有限公司 | Method for judging washing effect through acceleration sensor |
| CN110578229A (en) * | 2019-09-23 | 2019-12-17 | 卧龙电气驱动集团股份有限公司 | method for rapidly detecting eccentricity of washing machine |
| CN113564871A (en) * | 2021-05-28 | 2021-10-29 | 海信（山东）冰箱有限公司 | Washing machine tub collision detection method and device, medium and washing machine |
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