CN1566447A - Control method for motor of washing machine - Google Patents
Control method for motor of washing machine Download PDFInfo
- Publication number
- CN1566447A CN1566447A CN 03130324 CN03130324A CN1566447A CN 1566447 A CN1566447 A CN 1566447A CN 03130324 CN03130324 CN 03130324 CN 03130324 A CN03130324 A CN 03130324A CN 1566447 A CN1566447 A CN 1566447A
- Authority
- CN
- China
- Prior art keywords
- motor
- operating mode
- clockwise direction
- control method
- washing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Multiple Motors (AREA)
Abstract
The present invention provides a motor control method for washing machine. The method includes the following steps: 1.the motor takes turns to rotate clockwise or anticlockwise, while the washing cylinder connected with the motor rotates with it; 2.preparing for washing; 3. judging whether the motor operating condition differences between the clockwise rotation and anticlockwise rotation is more than the first set value; 4.if so, reducing the operating condition to the second set value in the corresponding rotation direction. The motor control method can ensure balanced rotation in two directions so as to prevent washings from being unbalanced and prevent current increase. The invention avoids descending performance, and improves product reliability.
Description
Technical field
The invention relates to washing machine, particularly about the motor control method of washing machine.
Background technology
As shown in Figure 1, general washing machine includes rectification part [rectifier] (11), motor (12), drive division (13), switch mode power SMPS (Switching Mode Power Supply) (14), speed sensor (15), braking resistor (Rb), transistor [transistor] (T1), voltage sense part (16), driving governor [drive micro computer] (17), the door switch (not shown), user's interface [interface] (18), LCD LCD (19), buzzer [buzzer] (20), master controller [main micro computer] (21) constitutes.The AC power of rectification part [rectifier] (11) rectification input.Motor (12) transmits revolving force to the cylindric washer or the impeller of washing machine.Drive division (13) is made of the inverter [inverter] with a plurality of insulated door bipolar transistor IGBTs (Insulating Gate Bipolar Transistor), and, drive division (13) is to import the 1st pattern [mode] running of 3 phases (U/V/W) power supply to motor (12) lining, perhaps the reverse control motor of drive division (13) (12) promptly rotates 2nd mode operating of the electric current of generation to line side adverse current [counter] by motor.SMPS (14) becomes (5V) back output of given voltage [level] to the voltage transitions of rectification part (11) output.Speed sensor (15) detects the rotary speed of above-mentioned motor (12).Braking resistor (Rb) consumes the electric current that produces in above-mentioned drive division (13) adverse current and by motor rotation and prevents that circuit is impaired with the form of heat.Transistor (T1) drives braking resistor (Rb).Voltage sense part (16) detects rectification part (11) output voltage after the above-mentioned braking resistor (Rb) of flowing through.Driving governor (17) is according to the influence value control drive division (13) and the transistor (T1) of above-mentioned speed sensor (15) and voltage sense part (16).The door switch (not shown) is arranged on the door, and after the switching of perception door information is sent to above-mentioned driving governor (17) lining.User's contact site (18) includes contact [touch] plate and function input part, and the user is by the various running instructions of user's contact site (18) input.LCD (19) shows the operating state of washing machine.For running instruction starter motor various loads such as (12) according to the user of above-mentioned user's contact site (18) input, various information such as master controller (21) and above-mentioned driving governor (17) exchange control signal; Master controller (21) by with driving governor (17) communication detect supply voltage unusual after, in order to spread out of warning message [message] and alarm [buzzer] sound equipment of having set, drive above-mentioned LCD (19) and buzzer (20).
The course of work of above-mentioned existing washing machine is as described below:
At first, if the user washs instruction by user's contact site (18) input, master controller (21) transmits the specified control signal to driving governor (17) after understanding above-mentioned instruction, washing coding [algorithm] running that the load basis has been set.
Therefore, driving governor (17) makes motor and the correspondingly rotation of having set of washing coding with the 1st mode operating drive division (13); And loads such as driving governor (17) running feed water valve, draining valve wash, rinse wash, stroke such as dehydration.
And master controller (21) is presented at present operating state on the LCD (19), and master controller (21) control buzzer (20), makes it produce alarm according to operating state.
At this moment, if check washing stroke, motor (12) is to clockwise direction and rotation by turns counterclockwise.
And clockwise motor operating mode [duty] only quilt clockwise direction operated motor operating mode before influences and changes, and anticlockwise motor operating mode [duty] is only influenced by counter clockwise direction operated motor operating mode before and changes.Such as, if the current operating mode of motor of clockwise direction running is ' 160 ', clockwise direction operated motor operating mode next time increases ' 1 ' ' 161 ' than ' 160 ', and clockwise direction operated motor operating mode increases ' 1 ' ' 162 ' than ' 161 ' next time again.Motor when counter clockwise direction operates too.
When washings was contained in the cylindric washer equably, if control the operating mode of motor in the above described manner, motor can be with uniform revolution to clockwise direction and rotation counterclockwise.
But motor is according to imbalance [unbalance] degree of washings, to clockwise direction or several circles of the many rotations of anticlockwise a certain direction.As above-mentioned, the operating mode of motor only is subjected to the influence of respective direction operated motor operating mode, can not balance so rotate the operating mode of a few circle directions more and rotate the operating mode of a few circle directions less, and between them to differ relative change big.
As mentioned above, the problem that existing motor for washer exists is, and is according to the washings imbalance, big to clockwise direction or the relative change of motor rotating operating mode counterclockwise, thereby deepen washings imbalance [unbalance], and the current ratio normal condition height of motor.
Summary of the invention
In order to overcome the above-mentioned shortcoming that exists when existing motor for washer turns round, the invention provides a kind of motor control method of washing machine, it makes to the motor operating mode of clockwise direction transhipment and counter clockwise direction motor rotating operating mode balance, prevents that the washings degree of unbalancedness from increasing and current of electric rises.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of motor control method of washing machine, this motor clockwise direction or alternate operation counterclockwise, the cylindric washer that connects with motor rotates with motor; It is characterized in that, comprise the stage that begins to wash; In washing process, judge whether the clockwise direction operated motor operating mode of motor and counter clockwise direction operated motor operating mode differ the above stage of the 1st setting value; Above-mentioned judged result if clockwise direction operated motor operating mode differs more than the 1st setting value with counter clockwise direction operated motor operating mode, once reduced for the 2nd stage that sets value on the motor operating mode ratio of corresponding running direction.
The motor control method of described washing machine, its 1st setting value is in 5～10% scopes of maximum duty (Full Duty).
The motor control method of described washing machine, its 2nd setting value is littler than the 1st setting value, and the 2nd setting value is in 5% scope of maximum duty (Full Duty).
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of general washing machine structure.
Fig. 2 is the flow chart of motor for washer control method of the present invention.
The specific embodiment
Below, be described with reference to the accompanying drawings the possible embodiments of motor for washer control method of the present invention.
Consult shown in Figure 2, at first, if the user is by user's contact site (18) input washing instruction, master controller (21) transmits the specified control signal to driving governor (17) after understanding above-mentioned instruction, makes load according to washing coding [algorithm] running of having set.
Therefore, driving governor (17) correspondingly rotates motor (12) and the washing coding of having set with the 1st mode operating drive division (13) by turns to clockwise direction (CW:Clock Wise) and counter clockwise direction (CCW:Counter Clock Wise); And loads such as driving governor (17) running feed water valve, draining valve wash, rinse wash, stroke (S21) such as dehydration.
Afterwards, driving governor (17) judges that whether the motor operating mode (DCWN-1) of clockwise direction running is than the motor operating mode (DCCWN-1) that counterclockwise turns round big (S22).
Above-mentioned judged result (S22) is if clockwise direction operated motor operating mode (DCWN-1) than counterclockwise operated motor operating mode (DCCWN-1) is big, just judges whether differ ' A ' above (S23) between them.
At this moment, ' A ' is a reference value that prevents that operating mode from too departing to a certain direction, and ' A ' is in 5～10% scopes of maximum duty.Be clockwise direction operated motor operating mode (DCWN-1) and counterclockwise operated motor operating mode (DCCWN-1) differ ' A ' above the time, can cause above-mentioned the problems of the prior art.
Above-mentioned judged result (S23), if clockwise direction operated motor operating mode (DCWN-1) is than counterclockwise more than the operated motor operating mode (DCCWN-1) big ' A ', clockwise direction operated motor operating mode (DCWN-1) is reduced to than clockwise direction operated motor operating mode (DCWN-1) little ' B ' before (S24) next time.
At this moment, ' B ' is in motor operating mode setting value for balanced two direction operated motor operating modes under the state that some directions too depart from.If sharply reduce the poor of operating mode, make the sub operations of loading such as motor; Therefore ' B ' is littler than ' A '.Promptly ' B ' is in 5% scope of maximum duty.
And above-mentioned judged result (S22) is if clockwise direction operated motor operating mode (DCWN-1) is big unlike counter clockwise direction operated motor operating mode (DCCWN-1).That is,, judge to differ between them whether more than ' A ' (S25) if counterclockwise operated motor operating mode (DCCWN-1) is than counterclockwise operated motor operating mode (DCCWN-1) is big.
Above-mentioned judged result (S25), if counterclockwise operated motor operating mode (DCCWN-1) is than more than the clockwise direction operated motor operating mode (DCWN-1) big ' A ', counterclockwise operated motor operating mode (DCCWN-1) is reduced to than counter clockwise direction operated motor operating mode (DCCWN-1) little ' B ' before (S26) next time.
Then, as the above-mentioned stage (S24) (S26), regulate operating mode and make the washing stroke adjustment; And the above-mentioned stage (S24) (S26) proceeds to repeatedly and finishes till the washing.If washing finishes (S27), carry out prescribed stroke, promptly rinse wash, dewater (S28).
The numerical value of recording and narrating among the present invention (' A ', ' B ') only is useful on the embodiment, and can be different according to its numerical value of characteristic of washing machine and motor.I.e. each motor for washer operating mode difference of Shi Yonging, and motor characteristic is also different; So its numerical value should suitably use in the scope that does not break away from core technology of the present invention.Core technology of the present invention is as follows: the operating mode of a certain direction of perception, become big with the operating mode that prevents this direction than the operating mode of other direction is undue, and the difference of the operating mode of two directions is maintained within a certain range.
The effect of invention
The motor control method of washing machine of the present invention prevents the electricity that clockwise or counterclockwise turns round One party becomes big to operating mode is undue in the machine operating mode, can make motor to two direction balanced rotation, thereby prevent from washing Wash thing imbalance and Current rise. Prevent that thus the washing machine hydraulic performance decline from also can improve the degree of belief of product.
Claims (3)
1, a kind of motor control method of washing machine, this motor clockwise direction or alternate operation counterclockwise, the cylindric washer that connects with motor rotates with motor; It is characterized in that, comprise the stage that begins to wash; In washing process, judge whether the clockwise direction operated motor operating mode of motor and counter clockwise direction operated motor operating mode differ the above stage of the 1st setting value; Above-mentioned judged result if clockwise direction operated motor operating mode differs more than the 1st setting value with counter clockwise direction operated motor operating mode, once reduced for the 2nd stage that sets value on the motor operating mode ratio of corresponding running direction.
2, the motor control method of washing machine according to claim 1 is characterized in that described the 1st setting value is in 5～10% scopes of maximum duty (Full Duty).
3, the motor control method of washing machine according to claim 1 it is characterized in that described the 2nd setting value is littler than the 1st setting value, and the 2nd setting value is in 5% scope of maximum duty (Full Duty).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130324 CN1566447A (en) | 2003-06-30 | 2003-06-30 | Control method for motor of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130324 CN1566447A (en) | 2003-06-30 | 2003-06-30 | Control method for motor of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1566447A true CN1566447A (en) | 2005-01-19 |
Family
ID=34469687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03130324 Pending CN1566447A (en) | 2003-06-30 | 2003-06-30 | Control method for motor of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1566447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9752268B2 (en) | 2014-01-22 | 2017-09-05 | Lg Electronics Inc. | Control method of washing machine |
-
2003
- 2003-06-30 CN CN 03130324 patent/CN1566447A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9752268B2 (en) | 2014-01-22 | 2017-09-05 | Lg Electronics Inc. | Control method of washing machine |
| CN104790172B (en) * | 2014-01-22 | 2017-09-26 | Lg电子株式会社 | The control method of washing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101855824B (en) | Inverter device for washing machine | |
| CN1396330A (en) | Device and method for measuring clothes weight in washing machine | |
| WO2010034266A1 (en) | Hybrid electric motor and controller test platform and test method thereof | |
| CN103348064A (en) | Rotation-type working machine | |
| CN1010645B (en) | Control apparatus for brush-less motor | |
| CN1105206C (en) | Washing machine | |
| CN1566447A (en) | Control method for motor of washing machine | |
| CN1323920C (en) | Rareearth permanent-magnet self-synchronous gearless elevator driving control system | |
| CN1215217C (en) | Washing-machine controlling method | |
| CN201263116Y (en) | High-efficiency energy-saving rare-earth permanent magnet direct drive device | |
| CN1641994A (en) | Low-voltage low-frequency transformer of high-voltage wound asynchronous motor for drining mine hoister | |
| CN1201477C (en) | Motor control for two motors | |
| JPH07112094A (en) | Washing machine | |
| CN1548606A (en) | Dewatering control method for washing machine | |
| KR100469274B1 (en) | method for controlling motor of washing machine | |
| CN108880345A (en) | A kind of control method and controller of brushless motor | |
| CN110515320A (en) | Drive control method, drive system, processing system and storage medium | |
| CN2802842Y (en) | Power-off brake controller of speed regulating system of switch reluctance motor | |
| CN1212475C (en) | Stator controller | |
| CN207573270U (en) | A kind of use in washing machine brshless DC motor Hall fault-tolerant control system | |
| CN1548611A (en) | Dewatering control method for washing machine | |
| CN2922275Y (en) | Non-beam long-stroke pumping unit variable frequency control device | |
| CN1567695A (en) | Motor control method of washing machine under interrupting condition | |
| CN1300929C (en) | Drive unit and method for single-phase switch type magnetic resistance motor | |
| KR100487376B1 (en) | method for controlling motor of washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |